نتایج جستجو برای: economic value of water

تعداد نتایج: 21270441  

2014
Feng Wu Jinyan Zhan Qian Zhang Zhongxiao Sun Zhan Wang Xiangzheng Deng

Growing water scarcity is one of the central challenges for sustainability in China, given its burgeoning industry and huge population, especially in the arid and semi-arid inland river basin where precipitation is very limited. Industrial transformation is an important engine of economic growth, which is required to be implemented by governments at all levels in China. Economic models have gen...

Journal: :international journal of environmental research 0
y. x. feng xinjiang institute of ecology and geography, chinese academy of sciences, urumqi 830011, china g.p. luo xinjiang institute of ecology and geography, chinese academy of sciences, urumqi 830011, china c.f. li xinjiang institute of ecology and geography, chinese academy of sciences, urumqi 830011, china l. dai xinjiang institute of ecology and geography, chinese academy of sciences, urumqi 830011, china e. chianese department of environmental science, university “parthenope” of naples, centro direzionale isola c4, 80143 napoli, italy

this study aims to quantify the impacts of land use changes on ecosystem service value during large scale land development, and to provide key information for both economic development and policy makers for eco-environmental protection. the study area locates in manas river watershed which is a typical land development region in northwest china. landsat mss/tm/etm+ images in 1976, 1989, 1999 an...

The unavoidable consequences of increased demand and decreasing water resources and Deduction rainfall and drought is caused to arise disutes among water user in recent years. On the other hand, vital need of agriculture sector to water and developing industry sector in Isfahan, have increased competition between water users of industry sector and agriculture sector. In this paper, we use...

1996
Marc O. Ribaudo Daniel Hellerstein

Knowledge of the benefits and costs to water users is required for a complete assessment of policies to create incentives for water quality improving changes in agricultural production. A number of benefit estimation methods are required to handle the varying nature of water quality effects. This report reviews practical approaches and theoretical foundations for estimating the economic value o...

2004
Peter Rossini

Water markets are increasingly being relied upon by international institutions and national governments to facilitate a reallocation of water from inefficient low value users to efficient high value users, and from rural to urban users, while minimizing the socio-economic and community impact of such reallocations within rural communities. This is a problem in both developed and developing coun...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

ارزش در معرض ریسک یکی از مهمترین معیارهای اندازه گیری ریسک در بنگاه های اقتصادی می باشد. برآورد دقیق ارزش در معرض ریسک موضوع بسیارمهمی می باشد و انحراف از آن می تواند موجب ورشکستگی و یا عدم تخصیص بهینه منابع یک بنگاه گردد. هدف اصلی این مطالعه بررسی کارایی روش copula-garch شرطی در برآورد ارزش در معرض ریسک پرتفویی متشکل از دو سهام می باشد و ارزش در معرض ریسک بدست آمده با روشهای سنتی برآورد ارزش د...

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