Optimizing the management of soil erosion

作     者：Nikkami, D Elektorowicz, M Mehuys, GR 

作者机构：Concordia Univ Montreal PQ H3G 1M8 Canada McGill Univ Ste Anne De Bellevue PQ H9X 1C0 Canada 

出 版 物：《WATER QUALITY RESEARCH JOURNAL OF CANADA》 (Water Qual. Res. J. Can.)

年 卷 期：2002年第37卷第3期

页      面：577-586页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0815[工学-水利工程] 

主　　题：soil erosion sediment yield optimization multi-objective linear programming 

摘      要：To reduce the environmental and economical impact of soil erosion resulting from improper management of land-use activities, a study was initiated by the Iranian Ministry of Construction on Syahrood, one of the sub-basins of the Damavand watershed in Iran. Land-use optimization is one of the appropriate strategies for soil conservation. It can empower the decision maker or watershed manager to choose from different land-use scenarios to reach the best decision with the different combinations of variables. The output results of the sediment yield model, including the integration of the Modified Universal Soil Loss Equation (MUSLE) with Spatial Analysis System-Geographic Information System (SPANS-GIS), along with the net income of each land use were used as input in the land-use optimization model for minimizing the sediment yield and maximizing farm production of each land use. The multi-objective linear programming simplex method of Steuer (1995) was used to solve the problem. The optimization process allocated dryland farming, areas to rangelands if no changes were made to the current supporting practice system. The expected annual sediment yield from the entire sub-basin was reduced by 2420 tonnes/year (or by 5%) and the annual net farm income was increased by 3.99 billion Iranian Rial/year (or by 134%).