ZHOU Bin,YU Xin-xiao,CHEN Li-hua,et al.Soil Erosion Simulation in Mountain Areas of Beijing Based on InVEST Model[J].Research of Soil and Water Conservation,2010,17(06):9-13,19.
基于InVEST模型的北京山区土壤侵蚀模拟
- Title:
- Soil Erosion Simulation in Mountain Areas of Beijing Based on InVEST Model
- Keywords:
- Beijing mountain area; forest type; soil erosion
- 分类号:
- S157.1
- 摘要:
- 为客观认识北京山区森林生态系统的土壤保持功能，基于北京山区森林资源二类调查，应用InVEST模型对北京山区土壤侵蚀状况进行模拟研究，并重点探讨不同森林类型土壤保持功能的大小。结果表明：该模型适用于北京山区的土壤侵蚀模拟，北京山区林地下总的土壤侵蚀量为176万t，平均保持土壤能力为220t/hm2。各森林类型的保持土壤能力均较高，其中天然混交针叶林保土能力最高，为335t/hm2，其次是天然侧柏林，为297t/hm2，而最小的是人工落叶松林，为148t/hm2。
- Abstract:
- To comprehensively evaluate different types of forest ecosystem effects on soil conservation in mountain areas of Beijing, the soil erosion in this areas was simulated using InVEST (The Integrated Valuation of Ecosystem Services and Tradeoffs Tool) model with the data of Beijing Forest resources inventory, and emphasis was placed on impacts of different forest types. Results showed that the model was applicable to soil erosion simulation in mountain areas of Beijing, and the total of soil erosion was 1.76 million tons, the average soil conservation capacity was 220 t/hm2. All forest types of soil retention capacity were high in mountain areas of Beijing, and the highest soil retention capacity was 335 t/hm2 in natural mixed coniferous forest, the second one was 297 t/hm2 in nature arborvitae, while the smallest one is 148 t/hm2 in the artificial larch.
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备注/Memo
收稿日期:2010-5-1
基金项目:林业公益性行业科技专项经费项目（200804022）
作者简介:周彬（1986- ），男（壮族），硕士，主要从事水土保持和森林生态方面研究。E-mail：zhoubin_shb@bjfu.edu.cn
通讯作者:余新晓（1961- ），男，甘肃省平凉市人，教授，博士生导师，从事水土保持及森林生态水文方面的研究。E-mail：yuxinxiao111@126.com