نتایج جستجو برای: use value in total wetland preservation value
تعداد نتایج: 17273185 فیلتر نتایج به سال:
in his last years of life americans had almost forgotton steinbeck, and those who had not, occasionally criticized him for supporting and praising the u. s. military intervention in the vietnam war. althought ateinbeck incorporates different themes into his works, each one bears many signs of his concern and sympathy for america and the american common people in particular. steinbecks to a god ...
Preservation has value to society over and above the value of the content that is preserved. It is important to articulate this value in order to argue compellingly for the creation of public policies and economic models that adequately support preservation of culturally significant content. This article explores the societal value of preservation, discussing why questions about societal value ...
مقدمه : هدف از این مطالعه مقایسه ی عملکرد والدین و مشکلات رفتاری در کودکان مبتلا و غیر مبتلا به بیماری بازگشت ادرار از مثانه به حالب مراجعه کننده به درمانگاه کودکان بیمارستان امیرکبیر اراک روش کار : این مطالعه یک مطالعه مورد – شاهدی است که روی 61 کودک مبتلا به اختلال شب ادراری اولیه و 61 کودک غیر مبتلا در محدوده سنی 14-4 سال انجام شد. پرسشنامه های ارزیابی سیاهه رفتاری کودک (cbcl) برای بررسی م...
Background and Objective: Research has shown that assessing the toxicity and ecological risk of various types of pollutants, including heavy metals, using specific indicators, is indispensable in the ecological risk assessment of the ecosystem. Accordingly, the aim of this study was the assessment of the ecological effect of heavy metals presence (Pb, Zn, Cu, Cd and, As) in Anzali wetland using...
to estimate the fish composition and catchability coefficient of gillnet, a survey was carried out during april 2011 to march 2012 in the shadegan wetland, khuzestan province, iran. samples were collected from five stations viz., mahshar, rogbe, khorosy, salmane and atish. approximately 4300 fish specimens were measured and depletion method was used for the estimation of catchability coefficie...
Inequality and ecosystem services: The value and social distribution of Niger Delta wetland services
The Niger Delta wetlands are of international importance for their biodiversity, and support a large human population. The value and distribution of wetland ecosystem service benefits and costs across the three main stakeholder sectors (local community, government and corporate) were investigated. Results show that the net monetary value of the wetlands is $11,000 per delta household of which $...
Urbanization, and the resulting land use/cover change, is a primary cause of the degradation of coastal wetland ecosystems. Reclamation projects are seen as a way to strike a balance between socioeconomic development and maintenance of coastal ecosystems. Our aim was to understand the ecological changes to Jiangsu’s coastal wetland resulting from land use change since 1977 by using remote sensi...
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