Evaluating the reliability of global historical land use scenarios for forest data in China

作     者：YANG Fan HE Fanneng LI Meijiao LI Shicheng YANG Fan;HE Fanneng;LI Meijiao;LI Shicheng

作者机构：Key Laboratory of Land Surface Pattern and SimulationInstitute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of SciencesBeijing 100049China School of Public AdministrationChina University of GeosciencesWuhan 430074China 

出 版 物：《Journal of Geographical Sciences》 (地理学报（英文版）)

年 卷 期：2020年第30卷第7期

页      面：1083-1094页

核心收录：

学科分类：120301[管理学-农业经济管理] 12[管理学] 120302[管理学-林业经济管理] 1203[管理学-农林经济管理] 

基　　金：The National Key Research and Development Program of China,No.2017YFA0603304 National Natural Science Foundation of China,No.41671149 

主　　题：land use historical forest natural vegetation global scenarios reliability evaluation China 

摘      要：Global historical land use scenarios are widely used to simulate the climatic and ecological effects of changes in land cover;however,reliability evaluation of these scenarios for data on China’s forests is *** using a historical document-derived Chinese forest dataset(CHFD)for the years 1700–2000,we evaluated the reliability of data on forests in China over three global scenarios-SAGE(Center for Sustainability and the Global Environment),PJ(Pongratz Julia),and KK10(Kaplan and Krumhardt 2010)-through trend-related,quantitative,and spatial *** results show the following:(1)Although the area occupied by forests in China in the SAGE,PJ,KK10,and CHFD datasets decreased over the past 300 years,there were large differences between global scenarios and *** area occupied by forests in China in the SAGE scenario for 1700–1990 was 20%–40%more than that according to CHFD,and that occupied by forests in the KK10 from 1700 to 1850 was 32%–46%greater than that in *** difference between the PJ and CHFD was lower than 20%for most years.(2)Large differences were detected at the provincial and grid cell scales,where the PJ scenario was closer to CHFD in terms of total forested *** with large differences in terms of trend and quantity were 84%and 92%of all provinces,*** cells with relative differences greater than 70%accounted for 60%–80%of all grids.(3)These global historical land use scenarios do not accurately reveal the spatiotemporal pattern of Chinese forests due to differences in the data sources,methods of reconstruction,and spatial scales.