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《Geographical Research》 2009-04
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A forest nutrient cycling spatial model and its application

LI Qian1,2,YANG Sheng-tian2,BAI Xiao-hui2,LU Tao3,LIU Rui-lu3,DU Di3(1.China National Environmental Monitoring Center,Beijing 100012,China;2.State Key Laboratory of Remote Sensing Science,School of Geography,Beijing Normal University,Beijing 100875,China;3.Water Conservancy Department of Guizhou Province,Guiyang 550002,China)  
Forest nutrient cycling is a crucial parameter in the analysis of forest eco-system.The paper established a forest nutrient cycling spatial model which coupled nutrient cycling process model and remote sensing model of vegetation NPP.Compared with nutrient cycling process model,the forest nutrient cycling spatial model improved the spatial analysis function and made the parameters acquirement easier.The forest nutrient cycling spatial model also complemented the nutrient limitation expression in the vegetation NPP model,which combined the vegetation growth,nutrient cycling and soil chemical property together.The model was developed using module integration technique and coupled in Ecohydrology Assessment Tools.Applying the forest nutrient cycling spatial model,the research simulates and analyzes the NPP and the patterns of nutrient bio-cycling in the typical plant community in Guizhou province.Compared with the observed data,the simulated spatial results are credible and the forest nutrient cycling model can simulate the spatio-temporal patterns of nutrient bio-cycling processes.
【Fund】: 国家重点基础研究发展项目(2005CB422207)
【CateGory Index】: S718.5
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