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Simulating the vegetation-producing process in small watersheds in the Loess Plateau of China
Wang, KB (Wang, KaiBo)[1]; Shangguan, ZP (Shangguan, ZhouPing)[2]
2012-09-30
发表期刊JOURNAL OF ARID LAND
卷号4期号:3页码:300-309
文章类型期刊论文
摘要

Small watersheds are the basic composition unit of the Loess Plateau in China. An accurate estimation of vegetation net primary productivity (NPP) is of great significance for eco-benefit evaluation in small watershed management in this region. Here we describe the development and testing of a vegetation-producing process model (VPP) of a small watershed in the Loess Plateau. The model couples three modules: radiation adjustment; soil hydrological processes; and vegetation carbon assimilation. Model validation indicates that the VPP model can be used to estimate the NPP of small watersheds in the region. With the VPP model, we estimated the spatial NPP distributions in the Yangou watershed for 2007. The results show that in the Yangou watershed the NPP is relatively low, averaging 168 g C/(m(2).a). Trees and shrubs have a higher NPP than crops and grasses. The NPP is larger on the partly shaded and shaded slopes than on the partly sunny and sunny slopes. The NPP on the slopes increases gradually on 0-20 degrees slopes and decreases slightly on slopes steeper than 20 degrees. Our simulation indicates that the vegetation type is the most important factor in determining the NPP distribution in small watersheds in the Loess Plateau.

关键词Small Watershed Net Primary Productivity Vegetation-producing Process Model Solar Radiation Soil Hydrologicalprocess Vegetation Carbon Assimilation
DOI10.3724/SP.J.1227.2012.00300
收录类别SCIE
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10114
专题生态环境研究室
通讯作者Shangguan, ZP (Shangguan, ZhouPing)[2]
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an710075, China;
2.Northwest Agriculture and Forestry University, Yangling 712100, China
推荐引用方式
GB/T 7714
Wang, KB ,Shangguan, ZP . Simulating the vegetation-producing process in small watersheds in the Loess Plateau of China[J]. JOURNAL OF ARID LAND,2012,4(3):300-309.
APA Wang, KB ,&Shangguan, ZP .(2012).Simulating the vegetation-producing process in small watersheds in the Loess Plateau of China.JOURNAL OF ARID LAND,4(3),300-309.
MLA Wang, KB ,et al."Simulating the vegetation-producing process in small watersheds in the Loess Plateau of China".JOURNAL OF ARID LAND 4.3(2012):300-309.
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