基于InVEST模型的西苕溪流域产水量分析

doi:10.5814/j.issn.1674-764x.2012.01.008

资源与生态学报 ›› 2012, Vol. 3 ›› Issue (1): 50-54.DOI: 10.5814/j.issn.1674-764x.2012.01.008

基于InVEST模型的西苕溪流域产水量分析

张灿强^1,2, 李文华¹, 张彪¹, 刘某承¹

1. 中国科学院地理科学与资源研究所, 北京 100101;
2. 中国科学院研究生院, 北京 100049

收稿日期:2011-11-28 修回日期:2012-01-20 出版日期:2012-03-30 发布日期:2012-03-30
通讯作者: LI Wenhua. Email: liwh@igsnrr.ac.cn.

Water Yield of Xitiaoxi River Basin Based on InVEST Modeling

ZHANG Canqiang^1,2, LI Wenhua¹, ZHANG Biao¹, LIU Moucheng¹

1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2011-11-28 Revised:2012-01-20 Online:2012-03-30 Published:2012-03-30
Supported by:
National Major Water Pollution Control Project(No.2008ZX07526-007).

摘要/Abstract

摘要： 流域产水量的计算与分析对水资源的规划、管理以及水库建设具有重要意义。本研究将InVEST中的产水量模型应用于西苕溪小流域。该模型的数据需求主要包括土地利用/覆被,年均降雨量和潜在蒸发散,土壤深度,植被可利用水量。为验证模型的精确度,利用基期的降水径流关系,得到2003-2007年的平均自然径流量。经过反复校验,当Z系数为6.5时,产水量为8.3亿m³,与自然径流量最为接近,从流域产水量的分布来看,南部和西南部地区单位面积的产水量较高。

关键词: 产水量, InVEST, 土地利用/覆被, 植被可利用水, 西苕溪

Abstract: Water yield calculation and mapping are of great importance to water resource planning and management and hydropower station construction. A water yield model based on InVEST was employed to estimate water runoff in the Xitiaoxi River basin. The data included land use and land cover, average annual precipitation and potential evapotranspiration, soil depth, and plant available water content. In order to test model accuracy the natural runoff of Xitiaoxi River was estimated based on linear regression relation of rainfall-runoff in a ‘reference period’. After repeated validation, when the Z value was 6.5 the water yield was 8.30 E+8 m³ and this was a smaller difference with natural runoff. From the distribution of water yield, south and southwestern areas of the watershed had higher water yield volumes per hectare.

Key words: water yield, InVEST, land use and land cover, plant available water content, Xitiaoxi River

张灿强, 李文华, 张彪, 刘某承. 基于InVEST模型的西苕溪流域产水量分析[J]. 资源与生态学报, 2012, 3(1): 50-54.

ZHANG Canqiang, LI Wenhua, ZHANG Biao, LIU Moucheng. Water Yield of Xitiaoxi River Basin Based on InVEST Modeling[J]. Journal of Resources and Ecology, 2012, 3(1): 50-54.

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基于InVEST模型的西苕溪流域产水量分析

Water Yield of Xitiaoxi River Basin Based on InVEST Modeling

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