نتایج جستجو برای: resource conservation

تعداد نتایج: 308163  

2016
Anne V. Bossange Kandace M. Knudson Anil Shrestha Ronald Harben Jeffrey P. Mitchell

Conservation tillage (CT) systems have a number of potential benefits including lower crop production costs and the ability to reduce soil erosion that have made them common in several regions of the world. Although CT systems have been researched and successfully implemented on some farms in California's San Joaquin Valley (SJV), overall adoption is low and the reasons for the region's compara...

Journal: :international journal of environmental research 2010
e.e. ezebilo

this paper discusses the study of community’s preferences for biodiversity conservation management institution which may motivate them to support conservation efforts in the okwangwo division of the cross river national park, nigeria. the empirical data was generated from personal interviews and factors influencing the respondents’ choice were examined with the aid of multinomial logit mode...

Journal: :Journal of Environmental Economics and Management 2006

1996
Lars J. Olson Santanu Roy

This paper analyzes conservation and extinction of renewable resources when the production function is nonconcave and the return function depends on consumption and the resource stock. The paper focuses on the efficiency of global conservation, a safe standard of conservation, and extinction. Which outcome obtains depends on the marginal rate of substitution between investment and the stock in ...

2008
Martin Nie

This article analyzes the role of prescriptive regulation and citizen-suit litigation (regulatory enforcement) in natural resource conservation in the USA. It first briefly explains why the judiciary is so involved in resource management and why litigation is so often used as a conservation tool. It then summarizes the extent to which regulatory enforcement is being threatened and/or undermined...

Journal: :J. Economic Theory 2000
Lars J. Olson Santanu Roy

We examine the efficiency of conservation of a renewable resource whose natural productivity is influenced by random environmental disturbances. We allow for non-concave biological production and stock-dependent social welfare. Unlike deterministic models, conservation may be inefficient no matter how productive the resource growth function is. In addition, improvements in the natural productiv...

Journal: :international journal of environmental research 0
m. kolahi department of social informatics, kyoto university, yoshida-honmachi, sakyo-ku, kyoto, japan t. sakai department of social informatics, kyoto university, yoshida-honmachi, sakyo-ku, kyoto, japan k. moriya department of social informatics, kyoto university, yoshida-honmachi, sakyo-ku, kyoto, japan m. yoshikawa department of social informatics, kyoto university, yoshida-honmachi, sakyo-ku, kyoto, japan r. esmaili department of forestry, university of lorestan, lorestan, iran

the proposition that natural areas need protection from the destructive actions of people iswidely accepted. this paper examines iran’s e-society attitudes and capital towards biodiversity conservationand evaluates economically iran’s national parks (nps). 2,121 respondents answered an online questionnaire conducted in summer 2012. the majority of respondents had visited one of iran’s nps. almo...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2006
Winifred B Kessler Jack Ward Thomas

Although natural resource management encompasses a wide range of disciplines, those with the closest ties to conservation biology are the renewable resources: forestry, fisheries management, range management, and especially wildlife management. How do practitioners in these disciplines view conservation biology? Some describe conservation biology as being entirely different from their disciplin...

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