摘要
植被恢复是改善退化生态环境的重要途径。位于闽东南沿海的晋江西溪流域是我国南方典型的水土流失区。应用基于SWAT的晋江西溪流域产流产沙分布式模型,结合流域内退化生态系统重建要求设定不同植被恢复情景,模拟分析植被恢复下的水文效应。模拟结果表明:SWAT模型能较好的用于流域退化生态系统重建的水文模拟;研究区内,还林比还草更有利于流域的水土保持和生态重建,植被恢复对流域产沙量的影响大于产流量。
The environment impact of vegetation restoration of degraded ecosystem includes hydrological process, soil erosion and so on. Based on the validation results of the yield of runoff and sediment, different revegetation scenarios were simulated with SWAT model in order to evaluate the impact of vegetation changes on hydrological effects in Xixi basin, which is located at coastal area of Fujian Province, southeast of China. It shows that SWAT model could be successfully used to model the hydrological process of revegetation of degraded ecosystem. Compared with the grassland rehabilitation, the forest rehabilitation can reduce runoff and sediment yield effectively in Xixi basin. The resuhs also demonstrate that revegetation has a great impact on the sediment yield.
出处
《山地学报》
CSCD
北大核心
2008年第1期71-75,共5页
Mountain Research
基金
:福建省重点学科(自然地理学)建设项目~~
