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 |
DOI | 10.3724/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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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Simulating the veget(772KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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