Vegetation Growth Changes of the Desertificated Area in China over the Past Ten Years

doi:10.13466/j.cnki.lyzygl.2017.03.007

Abstract

Abstract:

Land desertification has strong impact on eco-environment,ecological security and economic and social development.In addition,vegetation is regarded as one of the most important methods for land desertification control,so its growth analysis and changes detection become more and more important.In this article,MODIS,from 2005 to 2014,was used as the main data source to extract the NDVI(Normalized Differential Vegetation Index) for analyzing the trend of vegetation growth of desert areas in China over the past ten years.The results indicated that the vegetation growth showed a trend of continuous improvement in the desert regions of China in recent 10 years.The average NDVI in the period from 2010 to 2014 reached to 0.26,increasing 5.4% than that in the period from 2005 to 2009.The vegetation grew towards improvement in Hulun Buir,the middle and eastern part of Inner Mongolia and slightly increased in Alxa,Hexi Corridor and North Qinghai.The vegetation growth kept steady in Xinjiang region.

Key words: vegetation growth, NDVI, desertification, remote sensing monitoring, trend analysis

CLC Number:

Q948

LIU Xusheng, SUN Tao. Vegetation Growth Changes of the Desertificated Area in China over the Past Ten Years[J]. FOREST RESOURCES WANAGEMENT, 2017, (3): 31-34.

Figures/Tables 4

Tab.1

Fig.1

Fig.2

Fig.3

References 7

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区域	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	均值
呼伦贝尔	0.534	0.493	0.499	0.455	0.486	0.529	0.508	0.507	0.516	0.542	0.507
内蒙古东部	0.483	0.432	0.416	0.435	0.419	0.441	0.448	0.476	0.474	0.454	0.448
内蒙古中部	0.326	0.315	0.303	0.328	0.321	0.342	0.349	0.376	0.373	0.334	0.337
阿拉善高原和河西走廊	0.139	0.134	0.145	0.142	0.138	0.144	0.145	0.155	0.155	0.149	0.145
青海北部	0.217	0.206	0.207	0.201	0.205	0.211	0.212	0.218	0.219	0.205	0.210
北疆	0.188	0.181	0.194	0.172	0.179	0.191	0.189	0.181	0.196	0.178	0.185
南疆	0.134	0.131	0.140	0.134	0.133	0.138	0.144	0.141	0.139	0.127	0.136
荒漠化地区	0.258	0.243	0.244	0.245	0.243	0.257	0.255	0.268	0.266	0.254	0.253

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