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	A spatially explicit reconstruction of forest cover in China over 1700-2000
	He F. N.; Li, S. C.; Zhang, X. Z.
	2015
关键词	Forest cover Spatially explicit Reconstruction China Past 300 years Land suitability for cultivation past 300 years land-use change northeast china carbon emissions 3 centuries climate cropland history vegetation patterns
英文摘要	The spatially explicit reconstruction of historical forest plays an important role in understanding human modifications of land surfaces and its environmental effects. Based on an analysis of the forest change history of China, we devised a reconstruction method for the historical forest cover in China. The core idea of the method is that the lands with high suitability for cultivation will be cultivated and deforested first, spreading to marginal lands with lower suitability for cultivation. By determining the possible maximum distribution extent of the forest, as well as devising the land suitability for cultivation assessment model and provincial forest area allocation model, we created 10 km forest cover maps of China for the years 1700 to 2000 with 10 year intervals. By comparison with satellite-based data in 2000, we found that the grids within 25% differences account for as much as 66.07% of all grids. The comparison with the historical documents-based data in northeast China indicated that the number of counties within 30% relative differences is 99, accounting for 74.44% of all counties. Therefore, the forest area allocation model we devised can accurately reproduce the spatial patterns of historical forest cover in China. Our reconstruction indicates that from 1700 to the 1960s, the deforestation mainly occurred in southwest China, the hilly regions of south China, the southeast of Gansu province, and northeast China; from the 1960s to 2000, the reforestation occurred in most traditional forested regions of China, particularly in the Tibet Plateau, hilly regions of south China and the Greater Khingan Mountains. The spatially explicit forest cover data sets we reconstructed can be used in global or regional climatic models to study the impact of land cover change on climate change. (C) 2015 Elsevier B.V. All rights reserved.
出处	Global and Planetary Change
卷	131
页	73-81
收录类别	SCI
语种	英语
ISSN号	0921-8181
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38637]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	He F. N.,Li, S. C.,Zhang, X. Z.. A spatially explicit reconstruction of forest cover in China over 1700-2000. 2015.

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