In a recent study by Cai et al. about water shortages in Beijing-Tianjin-Hebei urban areas, virtual water has become the central concept of the groundwater security strategy by suggesting increasing imports of water-intensive agricultural products instead of utilizing the depleted groundwater resources for production. However, despite reviewing the content, we could not see how the authors discussed the households’ economic and financial issues from both production and consumption perspectives.

This article analyzes the emergence of a political rationality of groundwater in contemporary California. It contrasts a new government of nature that we call a ‘political physics of vital processes’, operative in the case of the Orange County Water District, with juridical and biopolitical rationalities of groundwater governance. To do so, we propose a genealogical account grounded in a reading of a key concept in Aristotle’s first book of Politics. The case is analyzed along the axes of subjectivity, (...) space, and temporality, opening to a novel way of conceptualizing the relation between power and nature. (shrink)

Western Kansas is one of the most important agricultural regions in the world. Most agricultural production in this semi-arid region depends on the consumption of nonrenewable groundwater from the High Plains Aquifer, which will be 70 % depleted by 2070. The problem of depletion has drawn significant attention from local citizens and policymakers at the federal, state, and local levels for at least 40 years, resulting in a variety of policies and institutions to manage groundwater from the aquifer (...) as a common pool resource. Yet depletion has persisted. We explain this conundrum as an outcome of a mismatch between the scale of resource management, which has become more intensively local, and the scale of resource exchange, which has rendered the High Plains Aquifer a global common pool resource. We then explain the deeper, structural origins of the management–exchange scale mismatch. Drawing on concepts from structural human ecology theory and empirical evidence from Southwest Kansas, we show that agriculture is predicated on local metabolic rift in the hydrological cycle that is exacerbated through ecological unequal exchange with higher-income, core areas beyond the region. We conclude by highlighting two key policies that, if implemented together, may lessen the deleterious effects of these structural dynamics and thus promote a more sustainable relationship between society and environment in this region and other water-scarce regions that are net-exporters of groundwater. (shrink)

The chief sources of groundwater contamination on farms come from point sources and diffuse sources. Possible point sources are feedlots, poorly-sited manure piles, septic sewage-treatment systems—all of which can release nitrate, phosphates and bacteria— and sites of chemical spills. Diffuse sources are typified by excess fertilizer leaching from a number of arable fields. The basis of quality standards for drinking-water is discussed in relation to common contaminants present on farms. Samples of drinking-water were collected in 1991–1992 from wells on (...) about 1,200 farms in order to study the quality of rural groundwater in Ontario. Analysis showed that approximately one third of wells were contaminated with bacteria, 14% were contaminated with nitrate, two wells were contaminated with pesticide, but 40% were considered unsafe because of the presence of at least one contaminant. These values were similar to those reported for similar regions in the U.S. There was no significant effect of agricultural practice on the proportion of contaminated samples. One response of Ontario's farmers to information on water quality has been to initiate their own program, the Environmental Farm Plan, which has 23 modules by which the risk of environmental contamination can be assessed. Government policies for agriculture can be expected to influence farming practices. However, the literature suggests that the consequences of policies aimed at reducing environmental contamination are poorly understood, not least because the instruments used for implementation can have widely differing impacts. The need for discussions on the ethics surrounding the relationship between food producers and consumers with regard to environmental contamination is identified. (shrink)

Property rights are important institutions that influence economic performance and reflect the historical, cultural, and political realities of particular societies. Drawing on a variety of concepts from legal and economic studies, a framework for explaining the origin and evolution of property rights is developed and applied to the specific case of changing ground water rights in Nebraska. The Nebraska case is an interesting example of reliance on local control in regulating water use. Despite the importance of local initiatives in ground (...) water management, this case also illustrates the need for external support from the judicial and legislative systems. The evolution of ground water property rights in Nebraska, as in other parts of the United States, has been conditioned by historical circumstances and changing values and attitudes as well as by economic and political forces. (shrink)

This paper explores the relationship between farmland investment and environmental uncertainty. It examines how farmland investors seek to “render land investible” in spite of drought, groundwater depletion, and changing regulations. To do so, we analyze a single case study: the purchase of 8000 acres of dry rangeland in California’s Cuyama Valley by the Harvard University endowment for use in creating an irrigated vineyard. Drawing from interviews with Cuyama Valley farmers and community members, participant observation at community meetings, and public (...) document analysis, we make two primary contributions to understandings of uncertain resource materiality in farmland investment. First, this case reveals that investors can turn environmental uncertainty into an advantage, exploiting both the temporal uncertainties associated with resource management under climate change and the spatial uncertainties inherent to all subsurface resources. We argue that the material and legal uncertainties of groundwater access provide investors with a potentially lucrative opening to assert their preferred land imaginaries and improve their property values. In the Cuyama Valley they did so through both participation in groundwater governance and the establishment of water-related infrastructure on their property. Second, this case highlights that the asset-making processes involved in farmland investment may be as much vertical as they are horizontal. The need to map and measure the uncertain vertical dimension of land creates an outsized role for scientific expertise in farmland assetization. (shrink)

Some of the most relevant problems today both in Science and practical problems involves Coupled Socio-ecological Systems, which are some of the best examples of Complex Systems. In this work we discuss groundwater-management as an example of these Coupled Socio-ecological System, also known as Coupled Human and Natural Systems. We argue that it is possible and even necessary to construct a contextual statistical theory of groundwater management. Contextuality implies some very different statistical features as entanglement and complementarity. We (...) discuss some interpretation about statistical entanglement and statistical complementarity in terms of groundwater flow theory and extraction equation. To this end, we propose a non-Kolmogorobian approach following the Växjö school of thought. One of the most straightforward conclusions is that in this way, a statistical-contextual treatment of groundwater management may not only give place to new flow equations, but it could have a profound impact in resource management. Then the new basic unity of analysis should be the indivisible pair. We should not talk any more about aquifer dynamics or resource management plans by themselves. Physical and social systems are coupled in a statistical-contextual fundamental way, and a socio-hydrogeological theory should be developed. (shrink)

River water pollution by wastewater can cause significant negative impact on the aquatic sustainability. Hence, accurate modeling of this complicated system and its cost-effective treatment and reuse decision is very important because this optimization process is related to economic expenditure, societal health, and environmental deterioration. In order to optimize this complex system, we may consider three treatment or reuse options such as microscreening filtration, nitrification, and fertilization-oriented irrigation on top of two existing options such as settling and biological oxidation. The (...) objective of this environmental optimization is to minimize the economic expenditure of life cycle costs while satisfying the public health standard in terms of groundwater quality and the environmental standard in terms of river water quality. Particularly, this study improves existing optimization model by pinpointing the critical deficit location of dissolved oxygen sag curve by using analytic differentiation. Also, the proposed formulation considers more practical constraints such as maximal size of irrigation area and minimal amount of filtration treatment process. The results obtained by using an evolutionary algorithm, named a parameter-setting-free harmony search algorithm, show that the proposed model successfully finds optimal solutions while conveniently locating the critical deficit point. (shrink)

This article contributes to the contemporary debate on land and water grabbing through a detailed, qualitative case study of horticultural agribusinesses which have settled in Tanzania, disrupting patterns of land and water use. In this paper we analyse how capitalist settler farms and their upstream and downstream peasant neighbours along the Nduruma river, Tanzania, expand and defend their water use. The paper is based on 3 months of qualitative field work in Tanzania. We use the echelons of rights analysis framework (...) combined with the concept of institutional bricolage to show how this contestation takes place over the full spectrum of actual abstractions, governance and discourses. We emphasise the role different (inter)national development narratives play in shaping day-to-day contestations over water shares and rule-making. Ultimately, we emphasise that water grabbing is not a one-time event, but rather an on-going struggle over different water resources. In addition, we show how a perceived beneficial development of agribusinesses switching to groundwater allows them to avoid peasant-controlled institutions, avoiding further negotiation between the different actors and improving their image among neighbouring communities. This development illustrates how complex and obscured processes of water re-allocation can be without becoming illegal per se. (shrink)

Hydraulic fracturing used to remove natural gas from the Marcellus Shale has raised environmental concerns in the region both in terms of air and water pollution. This article will examine those concerns and how the natural gas industry has responded to them. After discussing the issues related to groundwater contamination and air quality. I discuss industry responses and how the costs and harm associated with fracking could be reduced, with the knowledge that despite opposition from environmental groups, fracking will (...) continue. The hope is that more drillers will begin to operate in a socially responsible manner that will allow companies to be profitable while limiting harm to the environment and to individuals living near drilling sites. (shrink)

This article delves into the ancient Indian techniques of sustainable water resource management and the corresponding modern-day approaches of hydro-science towards sustainability. This article takes a comprehensive look at the traditional methods of water management that have been practised in India for centuries and highlights their relevance in the present-day context. The ancient techniques of water management in India, including rainwater harvesting, groundwater recharge and canal systems, were developed based on a deep understanding of the local ecosystems and the (...) water cycle. These practices were designed to promote the sustainable use of water resources and maintain a delicate balance between water availability and demand. In recent times, with the increasing global awareness of sustainability, there has been a renewed interest in these traditional practices which have been developed with a focus on reducing environmental impacts, conserving natural resources and promoting social and ecological equity which includes green technologies, circular economies and sustainable development goals and are rooted in the principles of sustainability that were ingrained in ancient India. In summary, this research contributes to emphasize the need to preserve traditions and integrate them with modern technology to achieve sustainable growth and ensure a sustainable future for all. (shrink)

This article examines, by way of a case study, a community where groundwater has been highly contaminated with nitrate and how that situation brings together matters of public policy, environmental justice, and emerging technology. The Mountain View community lies in an unincorporated area of Bernalillo County, New Mexico; the neighborhood is 77% Hispanic and is a pocket of poverty whose residents are considered at risk for environmental injustice. Groundwater nitrate contamination was discovered in the 1960s, but residents were (...) merely encouraged to dig deeper wells, until 1984 when most residents were put on nearby municipal water after a child was poisoned and hospitalized with methemoglobinemia, known as blue baby syndrome. In situ biodenitrification is an emerging technology that has been shown to completely remediate groundwater nitrate contamination after the injection of a food source for naturally occurring denitrifying bacteria; this technology is being considered for use in Mountain View. (shrink)

The past 15 years of exceptionally severe water scarcity in the Islamic Republic of Iran have resulted in the desertification and salinity of formerly arable lands, drying out of Iranian lakes and rivers, and quickly shrinking groundwater resources, while water demand has risen, along with the size of the Iranian population, of which over 70% lives in urban areas now. We have aimed to discover the causes of water scarcity in the IR Iran and evaluated its social and economic (...) impacts. First, we computed the Weighted Anomaly Standardized Precipitation (WASP) Index for the period of 1979-2014. To illustrate the social impact of water scarcity, we analyzed the current water risk for the twenty most populous Iranian cities, by employing the composite index approach to translate hydrological data into comprehensible indicators of water related risks, and made a projection for 2020-2030, by modeling potential changes in the future demand and supply of water. To demonstrate the economic impact of water scarcity, we evaluated the overall agricultural contribution to the IR Iran GDP. We have found that the 1999 severe drought in the IR Iran commenced a period of unusually dry conditions that is still ongoing. The rapidly growing Iranian urban populations presently experience a medium to extremely high overall water risk, with extremely high baseline water stress that, in part, is due to the lack of upstream protected lands. The relationship between baseline water stress and drought severity has been determined as weak, confirming that other factors than drought are equally or more important contributors to the existing water risk. Our projection calculations indicate that Iranian urban populations will continue to experience an extremely high water stress for the coming decade. Due to the fast growth of these populations as well as considerable rise of value added to the IR Iran GDP by other sectors of the national economy, the contribution of agricultural production to the national GDP has declined from about 25% to under 10% (although its total yield has risen considerably) during the past 30 years. This decrease has been directly proportional to the increased foreign food imports, dependency on the IR Iran oil exports and reduction in the non-oil exports. The main causes of water scarcity in the IR Iran appear to be due to climatic factors, insufficient environmental protection, and over-exploitation and mismanagement of water resources, especially by the agricultural sector. In conclusion, our study proposes anti-wasting water management action plan that recommends shifting the IR Iran government response to water scarcity from reactive survival strategies to proactive crisis prevention, with emphasis on safeguarding, monitoring, early warning, and effective step-by-step preparedness and readiness, and by laterally integrating water management between all levels of the IR Iran government, including local, regional and national, for a sustainable, resilient and prosperous economy of the Islamic Republic of Iran now and in the future. (shrink)

When is a law too idealized to be usefully applied to a specific situation? To answer this question, this essay considers a law in hydrogeology called Darcy''s Law, both as it is used in what is called the symmetric-cone model, and as it is used in equations to determine a well''s groundwater velocity and hydraulic conductivity. After discussing Darcy''s law and its applications, the essay concludes that this idealized law, as well as associated models and equations in hydrogeology, are (...) not realistic in the sense required by the D-N account. They exhibit what McMullin calls mathematical idealization, construct idealization, empirical-causal idealization, and subjunctive-causal idealization. Yet this lack of realism in hydrogeology is problematic for reasons unrelated to the status of the D-N account. These idealizations are also problematic in applied situations. Their problems require developing two supplemental criteria, necessary for their productive application. (shrink)

Agricultural intensification, now commonly referred to as sustainable intensification, is presented in development discourse as a key means to simultaneously improve food security and reduce rural poverty without harming the environment. Taking a village in Laos as a case study, we show how government agencies and farmers could perceive the idea of agricultural intensification differently. The study illustrates how farmers with the opportunities for groundwater use typically choose to grow vegetables and high valued cash crops rather than intensify rice (...) production. This contrasts with government and donor supported efforts to promote rice intensification as a means to increase food security and reduce rural poverty. The article’s main message is that farmers’ differing strategies are related to a variety of household characteristics and that farmers’ strategies should be central to the current discussion on sustainable intensification. (shrink)

This article contributes to the contemporary debate on land and water grabbing through a detailed, qualitative case study of horticultural agribusinesses which have settled in Tanzania, disrupting patterns of land and water use. In this paper we analyse how capitalist settler farms and their upstream and downstream peasant neighbours along the Nduruma river, Tanzania, expand and defend their water use. The paper is based on 3 months of qualitative field work in Tanzania. We use the echelons of rights analysis framework (...) combined with the concept of institutional bricolage to show how this contestation takes place over the full spectrum of actual abstractions, governance and discourses. We emphasise the role different national development narratives play in shaping day-to-day contestations over water shares and rule-making. Ultimately, we emphasise that water grabbing is not a one-time event, but rather an on-going struggle over different water resources. In addition, we show how a perceived beneficial development of agribusinesses switching to groundwater allows them to avoid peasant-controlled institutions, avoiding further negotiation between the different actors and improving their image among neighbouring communities. This development illustrates how complex and obscured processes of water re-allocation can be without becoming illegal per se. (shrink)

Recent developments in agriculture have stirred up interest in the concept of “sustainable” farming systems. Still it is difficult to determine the extent to which certain agricultural practices can be considered sustainable or not. Aiming at identifying the necessary attributes with respect to sustainability in Dutch dairy farming in the beginning of the third millennium, we first compiled a list of attributes referring to all farming activities with their related side effects with respect to economic, internal social, external social, and (...) ecological sustainability. A wide range of people (i.e., experts and stakeholders) were consulted to contribute to our list of attributes. Our consultation showed that only one attribute was selected for economic and internal social sustainability: profitability and working conditions, respectively. The list for external social sustainability contained 19 attributes and the list for ecological sustainability contained 15 attributes. To assess their relative importance, the same experts and stakeholders ranked the attributes for external social and ecological sustainability by using a questionnaire. The most important attributes for external social sustainability were food safety, animal health, animal welfare, landscape quality, and cattle grazing. For ecological sustainability they were eutrophication, groundwater pollution, dehydration of the soil, acidification, and biodiversity. The present method for identifying and ranking attributes is universal and, therefore, can be used for other agricultural sectors, for other countries, and for other time periods. (shrink)

The Indus Basin's advantageous climate and topography rendered it a prime site for the implementation of an irrigation system. This study looks at how the Indus Basin is affected by climate change. Changes in water flow, glacial/snow melt, and catchment areas in the Indus and its tributaries are revealed by trend analysis from hydro-logical stations. A network of canals constituted of trans-boundary rivers was built beside the Indus River System (IRS), soon after the implementation of the Indus Water Treaty, about (...) 70% of its water was allocated for irrigation purposes. An evident increase from 8.5 to 18.2 million hectares (MH) in the cropland area in Pakistan is monitored, whereas in India it increased widely from 2.02 to 8.5 MH that is about three times of the pre-vious figures due to expansion of the Indus irrigation network. Water tables have dropped and water logging has resulted from urbanization and groundwater extraction, while the use of pesticides and fertilizers has lowered the quality of the water.These problems are made worse by climate change, which presents serious obstacles to the region's water security, environmental sustainability, and economic growth.This article provides a comprehensive analysis of the modifications in the Indus Basin irrigation system and the impact of these changes on environmental resources. We can create practical plans to lessen the consequences of climate change and guarantee the Indus Basin has a safe and sustainable water supply in the future by comprehending how it affects the basin. (shrink)

Current facts about soil erosion, groundwater “mining,” and impact of toxic substances suggest a resource crisis in our farming system. Yet traditional checks on the exploitation of farmland, capsulized in the “stewardship ethic,” proceed from too limited a viewpoint to adequately address the root of the exploitation and proffer an alternative. After briefly examining the stewardship ethic, I consider the developmentof a “partnership ethic” to guide the use of land for farming which builds its essential elements out of the (...) reflections of feminist thinkers on the relationship between humankind and nature. Instead of using “rights” language to express the ethic, I develop a theory of appropriate use analogous to the appropriate use of another person’s capabilities-i.e., that such moral use should respect and not destroy the other and that it should return something of value to the other in exchange for the use. Finally, those principles are examined for their practical implications for farmland use and national farm policy. (shrink)

Floods generate both risks and benefits. In Langhorne Creek, South Australia, a historically-embedded system of shared floodwater management exists among farmers, who rely on semi-regular flood inundations as part of the region’s hydrosocial terroir – a dynamic conjunction of water, landscape, social relations and agricultural practice. Unruly floods coexist with a heavily regulated and precisely measured system of modern water management for viticultural irrigation across the region. Since the mid-twentieth century, groundwater extraction and new pipeline schemes have linked Langhorne (...) Creek to the Murray Darling Basin water management system, which has displaced flooding as the primary source of irrigation water. The associated modernist shift towards the rationalization of water as a measurable resource has acted to sideline flood irrigation. Yet, floods maintain important viticultural, ecological and social roles in Langhorne Creek, adding to the flexibility and resilience of the region in response to water management challenges. The system involves technological and infrastructural components, such as flood gates and channels, but also relies upon the cooperation and coordination of community members. Local vignerons suggest that flood irrigation is environmentally as well as economically beneficial, rejuvenating riparian wetlands along watercourses. A more formal acknowledgement of the specific regional experiences of water management in a wine region like Langhorne Creek helps to fill a gap between emplaced and hydrosocial understandings of flood irrigation and broader assumptions about flooding as wasteful and inefficient. (shrink)

The building of a railway tunnel through the Hallandsås ridge in the southwest of Sweden resulted in sinking groundwater levels and a toxic spill for the local community. As a result, this highly technological project expanded from the addressing of technological and economic issues of rail traffic and tunnel building to include issues of environmental harm and how to assess and manage the geology of the ridge. A central concern for local residents as well as for the developer has (...) been how to view and interpret the resource of groundwater. This article focuses on groundwater as a boundary object, bordering the domains of the technologists and the local community. In this situation, technological understanding and knowledge confronts an experience-based understanding and a symbolic interpretation of the water resource. (shrink)

With the increase in depth of coal mining, the hydrogeological complexity largely increases and water inrush accidents happen more frequently. For the safety of coal mining, horizontal directional drilling and grouting techniques have been implemented to detect and plug the fractures and conduits that deliver high-pressure groundwater to coal mine. Taking the grouting engineering performed at Xingdong coal mine at 980 m below sea level as an example, we collected the data of grouting quantity, the loss of drilling fluid, (...) gamma value, water temperature, average water absorption, distance between grouting loss points, water pressure on coal seam floor, and aquifuge thickness at 90 boreholes in the mine to conduct grey relational analysis, first. The analysis showed that the grouting quantity was highly correlated with all other factors. Subsequently, grey system evaluation was used to evaluate the risk of water inrush from the coal seam floor. The results of risk analysis illustrated that three water inrushes from Ordovician limestone occurred in mining face 2127, 2125, and 2222 in the study area were all located in the area with a risk score higher than 65. Through grouting, the identified cracks were effectively blocked and waterproof layers beneath the coal seam floors were constructed to reduce the threat of water inrush. By comparing the risk assessment results with three water inrush cases before grouting operation, we found that water inrush areas were consistent with the area of higher risk. (shrink)

A variety of water-based livelihood activities undertaken by women and men in the villages of North Gujarat are under threat due to the unavailability of adequate water. Excessive groundwater withdrawal and limited recharge have led to shrinking water tables. With shrinking supply and growing sectoral demand, the competition for access to water is growing and women, who command less political and social power in the patriarchal communities of South Asia, often find themselves marginalized. Women are basically considered domestic water (...) users while men are seen as productive water users, despite the fact that women make significant use of water for productive purposes as well. This paper, drawing mainly on fieldwork undertaken in six villages of North Gujarat, India, tries to show how women use water for multiple purposes and help sustain the household economy. The paper argues that recognizing women’s roles as multiple water users will help promote the productive use of water in enhancing rural livelihood and sustaining the household economy. With special reference to women respondents, the paper examines gender roles of both domestic and productive water users and explores how these roles help women to improve their socio-economic status. The paper also analyzes operational income and expenditures associated with water-based home enterprise. Individual interviews, focus group discussions, participant observation, daily routine diagrams, and key informant surveys were administered to collect primary data. Key findings show that access of women to water for productive use not only increases their income earning potential, but also helps strengthen their bargaining positions. (shrink)

Since the late 1960's, a mix of government policies has prevented the loss of farmland in Sweden, “either to forest or asphalt”; these policies have also ensured the maintenance of soil fertility and groundwater resources. However, in Sweden as in several other European nations, a chronic and growing “grain glut” in recent years has undermined the economic logic of import protection and farm price supports—the principle means of promoting a sustainable agriculture. Mainstream economists, imbued with urban-biased and production-centered values, (...) have long criticized these costly mechanisms of public support as cost-ineffective and socially unjustified. They and many prominent politicians tend to minimize the non-production benefits of maintaining an open “working landscape” and rural communities dependent upon agriculture. Historically, Sweden's major farm organizations and its agrarian political party have resisted this economistic view with considerable success. Therefore it was a shock to many observers when, in 1986, leaders of the Swedish Federation of Farmers itself proposed planting trees on crop land as one element of a solution to overproduction.This essay traces the evolution of Swedish farm debates and policies since World War II, leading to the present critical juncture. It explores the incipient alliance between farmers and conservationists to protect farmland (as well as family farms and farm communities) and assesses the prospects for maintaining land in production through diversification into biomass energy crops and high protein fodder crops (the former option takes on new significance in the wake of the Chernobil disaster and pressure for early de-commissioning of Sweden's nuclear power plants; the latter would reduce Swedish dependence on imported soybeans). Finally, there is speculation on the relevance of Sweden's experience for American farmland policy. (shrink)

E-waste, also known as waste from electrical and electronic equipment, is a solid waste that accumulates quickly due to high demand driven by the market for replacing newer electrical and electronic products. The global e-waste generation is estimated to be between 53.6 million tons, and it is increasing by 3–5% per year. Metals make-up approximately 30% of e-waste, which contains precious elements Au, Ag, Cu, Pt, and other high-value elements, valued at USD 57 billion, which is driving the e-waste recycling (...) industry. It is noteworthy that the recycling of precious elements from e-waste has emerged as a profitable enterprise in several parts of developing nations. E-waste contains 50–100 times higher levels of precious metals compared to natural ores, making it suitable for mining. E-waste recycling in developing nations, mostly occurs through the informal sector comprising manual collection, crushing, segregation and selling of precious elements, such as Au, Ag, Cu, Pb, Pt, and other rare elements (Nd, In, and Ga). The organized sector, on the other hand, mostly employs mechano-chemical methods, such as pyrometallurgy, hydrometallurgy, and bio-hydrometallurgy, which have serious environmental consequences. Both the informal and formal sectors of e-waste processing lead to the leaching of toxic elements into groundwater and soils. Owing to the lesser efficiency of greener technologies, such as phytoremediation and bioremediation, their use in precious metal extraction is very limited. However, this review explores several hyper-accumulating and tolerant plants viz. Brassica juncea and Berkheya coddii, which holds great potential in phytomining of precious metal from e-waste. Thus, the state of the art in precious metal extraction from e-waste as well as the advantages and disadvantages of different metal extraction technologies has been reviewed. (shrink)

This paper examines the adoption and application of a participatory approach to the transfer of scientific research to farmers with the objective of supporting government policies for sustainable agriculture. Detailed interviews with scientists and farmers in two case studies in New Zealand are used to identify the potential and constraints of such an approach. One case study involves Māori growers wishing to develop organic vegetable production; the other involves commercial wheat farmers who want to improve their profitability and face major (...) problems of groundwater nutrification. The paper concludes that while both case studies are characterized as successful by those involved, there is an inherent creative tension between the adoption of a participatory approach and its use to advance public policy goals. (shrink)

Dispersal of biota by humans is a hallmark of civilization, but the results are often unforeseen and sometimes costly. Like kudzu vine in the American South, some examples become the stuff of regional folklore. In recent decades, "invasion biology," conservation-motivated scientists and their allies have focused largely on the most negative outcomes and often promoted the perception that introduced species are monsters. However, cases of monstering by scientists preceded the rise of popular environmentalism. The story of tamarisk (Tamarix spp.), flowering (...) trees and shrubs imported to New England sometime before 1818, provides an example of scientific "monstering" and shows how slaying the monster, rather than allaying its impacts, became a goal in itself. Tamarisks' drought and salt tolerance suggested usefulness for both coastal and inland erosion control, and politicians as well as academic and agency scientists promoted planting them in the southern Great Plains and Southwest. But when erosion control efforts in Arizona, New Mexico and Texas became entangled with water shortages, economic development during the Depression and copper mining for national defense during World War Two, federal hydrologists moved quickly to recast tamarisks as water-wasting foreign monsters. Demonstrating significant water salvage was difficult and became subsidiary to focusing on ways to eradicate the plants, and a federal interagency effort devoted specifically to the latter purpose was organized and continued until it, in turn, conflicted with regional environmental concerns in the late 1960s. (shrink)