Regional partitioning of agricultural non-point source pollution in China using a projection pursuit cluster model
نویسندگان
چکیده
منابع مشابه
Integrating Ecological Restoration of Agricultural Non-Point Source Pollution in Poyang Lake Basin in China
This study addresses the excessive consumption of river basin water from the Poyang Lake area in China. Consumption of water for irrigation, together with the discharge of agricultural non-point source pollution, is seriously affecting the water quality of Poyang Lake. This study assesses the application of integrated ecological restoration technology for agricultural non-point source pollution...
متن کاملAgricultural non-point source pollution in China: causes and mitigation measures.
Non-point source (NPS) pollution has been increasingly serious in China since the 1990s. The increases of agricultural NPS pollution in China is evaluated for the period 2000-2008 by surveying the literature on water and soil pollution from fertilizers and pesticides, and assessing the surplus nitrogen balance within provinces. The main causes for NPS pollution were excessive inputs of nitrogen...
متن کاملCalibration and validation of a non-point source pollution model
Surface runoff and sediment transport in ̄uence soil quality and the quality of receiving waters. Simulation models are useful tools to describe drainage behavior and sediment yield to develop management strategies for agricultural waters. The objective of this study was to investigate the performance of the Agricultural Non-Point Source Pollution Model (AGNPS) and modi®ed versions comparing mea...
متن کاملGeospatial data resampling and resolution effects on watershed modeling: A case study using the agricultural non-point source pollution model
Researchers have been coupling geographic information systems (GIS) data handling and processing capability to watershed and waterquality models for many years. This capability is suited for the development of databases appropriate for water modeling. However, it is rare for GIS to provide direct inputs to the models. To demonstrate the logical procedure of coupling GIS for model parameter extr...
متن کاملDynamic agricultural non-point source assessment tool (DANSAT): Model development
* Corresponding author. USDA – ARS, SEWRL E-mail addresses: [email protected] (J. Cho), sm 1537-5110/$ – see front matter Published by doi:10.1016/j.biosystemseng.2009.01.011 Non-point source simulation models are commonly used tools for examining water and water quality issues. The dynamic agricultural non-point source assessment tool (DANSAT) is the distributed-parameter, physically-based, and cont...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Arid Land
سال: 2011
ISSN: 1674-6767
DOI: 10.3724/sp.j.1227.2011.00278