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[1]ZHANG Jia,WEN Zhong-ming,YANG Shang-bin.Spatial Distribution Evaluation of Biomass in Yanhe River Catchment Using Natural Ecosystem as a Reference[J].Research of Soil and Water Conservation,2010,17(03):35-39.

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Spatial Distribution Evaluation of Biomass in Yanhe River Catchment Using Natural Ecosystem as a Reference

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 03 Page number: 35-39 Column: Public date: 2010-06-20

Title:: Spatial Distribution Evaluation of Biomass in Yanhe River Catchment Using Natural Ecosystem as a Reference

Author(s):: ZHANG Jia¹, WEN Zhong-ming^1,2, YANG Shang-bin¹; 1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A&F University, CAS and MWR, Yangling, Shaanxi 712100, China

Keywords:: biomass; generalized additive model; vegetation index; distribution prediction

CLC:: Q948.3

DOI:: -

Abstract:: The study of the distribution of vegetation biomass and environmental biomass carrying condition is of great importance to the restoration planning and layout of regional vegetation. This study chooses Yanhe River catchment as a case study and chooses natural ecosystem as a reference to predict the spatial distribution of potential biomass in the catchment through the use of generalized additive model (GAM) and GIS spatial analysis method. In addition, By using remote sensing data to predict the actual biomass and its spatial distribution in the catchment. Then the potential biomass is taken as a reference and compared with the reality biomass to evaluate environmental biomass carrying condition of catchment by spatial analysis. The results showed that potential vegetation biomass is higher than the reality of vegetation in the southeast of Yanhe River catchment; but in the north-central region, the actual biomass in a lot of local sites is higher than the potential biomass, exceeding the largest real carrying capacity of environment. This study overcomes the shortcomings of small-scale (slope or plot scales) researches in spatial changes and can give a better assessment of the environmental biomass carrying condition and the spatial distribution in Yanhe River catchment, and is of great value to the improvement and utilization of degraded vegetation and the restoration planning and layout of regional vegetation.

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