نتایج جستجو برای: integrated watershed management

تعداد نتایج: 1097752  

Journal: :Environmental monitoring and assessment 2009
Quanfa Zhang Zhifang Xu Zehao Shen Siyue Li Shusen Wang

The South-to-North Water Transfer (SNWT) Project of China is the largest of its kind ever implemented. Of its three routes (i.e., East, Middle and West), the middle one will transfer 14 billion m(3) of water annually from the Han River, a tributary of the Yangtze and the water supplying area, to Beijing by 2030. Thus water quality in the 95,000 km(2) upper Han River basin is of great concern. A...

Journal: :مدیریت آب و آبیاری 0
سیده لیلا رضوی طوسی دانشجوی فوق دکتری، گروه سازه های آبی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران - ایران جمال محمدولی سامانی استاد، گروه سازه های آبی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران- ایران

water is a main resource in sustainable development planning where the management of quality and quantity of these resources play an important role in public health and social welfare. on the other hand, due to social, economic and environmental values of this vital resource, water resource management is considered as a very important task. the long term water strategies are not only a useful g...

2015
Runzhe Geng Xiaoyan Wang Andrew N. Sharpley Fande Meng Andrew C Singer

Best management practices (BMPs) for agricultural diffuse pollution control are implemented at the field or small-watershed scale. However, the benefits of BMP implementation on receiving water quality at multiple spatial is an ongoing challenge. In this paper, we introduce an integrated approach that combines risk assessment (i.e., Phosphorus (P) index), model simulation techniques (Hydrologic...

Haidar Mirzai Iman Saleh Khabat Khosravi,

Runoff estimation resulted from precipitation is the basis of more study in various develop and exploit design from water resource, then its measure and calculation due to environmental bottlenecks, always have a plenty problem. As a result of the importance of output runoff estimation and flood volume in watershed for the sake of country integrated watershed management in this study tried to 9...

Journal: :Environmental Modelling and Software 2004
Jian J. Dai Stefan Lorenzato David M. Rocke

A watershed is a complex ecosystem. Assessment of watershed condition entails consideration of numerous issues and factors. The problem is complex, the issues are not well defined, and data are often lacking. These characteristics suggest that a knowledgebased approximate reasoning approach is especially useful for watershed assessment. This paper describes a knowledge base for watershed assess...

Haidar Mirzai Iman Saleh Khabat Khosravi,

Runoff estimation resulted from precipitation is the basis of more study in various develop and exploit design from water resource, then its measure and calculation due to environmental bottlenecks, always have a plenty problem. As a result of the importance of output runoff estimation and flood volume in watershed for the sake of country integrated watershed management in this study tried to 9...

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