Fractional Forest Cover Changes in Northeast China From 1982 to 2011 and Its Relationship With Climatic Variations

	Fractional Forest Cover Changes in Northeast China From 1982 to 2011 and Its Relationship With Climatic Variations
	Jia, Kun 1; Liang, Shunlin 1; Wei, Xiangqin 1; Li, Qiangzi 1; Du, Xin 1; Jiang, Bo 1; Yao, Yunjun 1; Zhao, Xiang 1; Li, Yuwei 1
刊名	IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
	2015
卷号	8 期号:2 页码:907-918
关键词	Climate change forest fractional forest cover (FFC) neural networks (NNs) Northeast China
通讯作者	Jia, K (reprint author), Beijing Normal Univ, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China.
英文摘要	Forest cover information is essential for natural resource management and for climate change studies. In this paper, the fractional forest cover (FFC) in Northeast China was estimated using neural networks (NNs) based on the Global Inventory Modeling and Mapping Studies (GIMMS3g) Normalized Difference Vegetation Index (NDVI) data with 8-km resolution from 1982 to 2011. Furthermore, the relationship between FFC and two key climatic parameters (temperature and precipitation) was also analyzed. The validation results indicated a satisfactory performance (R-2 = 0.81, RMSE = 11.7%) of the FFC estimation method using NNs and time-series GIMMS3g NDVI data. The temporal and spatial characteristics of FFC changes were analyzed. The forest cover had a slightly decreasing trend during the study period for the entire Northeast China region. However, there were two distinct periods with opposite trends in the FFC change. The FFC had first increased from 1982 to 1998 (0.391% year(-1)), and then decreased from 1998 to 2011 (-0.667% year(-1)). The correlation analysis between the FFC and the climatic variations suggested that temperature and precipitation were not the decisive factors on controlling FFC changes in most of the Northeast China regions, and active forest disturbance might be the more important factor for FFC change in Northeast China.
研究领域[WOS]	Engineering, Electrical & Electronic ; Geography, Physical ; Remote Sensing ; Imaging Science & Photographic Technology
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000352277100028
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38485]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Jia, Kun 2.Jiang, Bo 3.Yao, Yunjun 4.Zhao, Xiang 5.Li, Yuwei] Beijing Normal Univ, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China 6.[Jia, Kun 7.Liang, Shunlin 8.Jiang, Bo 9.Yao, Yunjun 10.Zhao, Xiang
推荐引用方式 GB/T 7714	Jia, Kun,Liang, Shunlin,Wei, Xiangqin,et al. Fractional Forest Cover Changes in Northeast China From 1982 to 2011 and Its Relationship With Climatic Variations[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2015,8(2):907-918.
APA	Jia, Kun.,Liang, Shunlin.,Wei, Xiangqin.,Li, Qiangzi.,Du, Xin.,...&Li, Yuwei.(2015).Fractional Forest Cover Changes in Northeast China From 1982 to 2011 and Its Relationship With Climatic Variations.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,8(2),907-918.
MLA	Jia, Kun,et al."Fractional Forest Cover Changes in Northeast China From 1982 to 2011 and Its Relationship With Climatic Variations".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 8.2(2015):907-918.