1 Franklin S E, He Y, Pape A, et al. Landsat-comparable land cover maps using ASTER and SPOT images: A case study for large-area mapping programmes. Int J Remote Sens, 2011, 32: 2185-2205??
[2]
2 Wikipedia. United Nations Convention to Combat Desertification. 1994
6 Xu D, Li C, Zhuang D. Assessment of the relative role of climate change and human activities in desertification: A review. J Geogr Sci, 2011,21: 926-936??
[6]
7 Wu J, Xia H, Liu Y. Theory and methodology on monitoring and assessment of desertification by remote sensing. IGRSS, 2004, 4: 2302-2305
[7]
8 Xu D, Kang X, Zhuang D, et al. Multi-scale quantitative assessment of the relative roles of climate change and human activities in desertification— A case study of the Ordos Plateau, China. J Arid Environ, 2010, 74: 498-507??
[8]
9 Xu D, Kang X, Qiu D, et al. Quantitative assessment of desertification using Landsat data on a regional scale—A case study in the Ordos Plateau, China. Sensors, 2009, 9: 1738-1753??
[9]
18 Sternberg T, Tsolmon R, Middleton N, et al. Tracking desertification on the Mongolian steppe through NDVI and field—Survey data. Int J Digit Earth, 2011, 4: 50-64??
[10]
19 Verestraete M, Hutchinson C, Grainger A, et al. Towards a global drylands observing system: Observational requirements and institutional solutions. Land Degrad Dev, 2011, 22: 198-213??
[11]
20 Du J, Yan P, Dong Y. Precipitation characteristics and its impact on vegetation restoration in Minqin County, Gansu Province, northwest China. Int J Climatol, 2011, 31: 1153-1165??
[12]
4 国家林业局. 第四次中国荒漠化和沙化状况公报. 2011
[13]
10 Guo J, Wang T, Xue X, et al. Monitoring aeolian desertification process in Hulunbir grassland during 1975-2006, Northern China. Environ Monit Assess, 2010, 166: 563-571??
[14]
11 Nasierding N, Zhang Y. Change detection of sandy land areas in Minfeng oasis of Xinjiang, China. Environ Monit Assess, 2009, 151:189-196??
[15]
12 Yang M, Nelson F, Shiklomanov N, et al. Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research. Earth-Sci Rev, 2010, 103: 31-44??
[16]
13 Gao J, Liu Y. Determination of land degradation causes in Tongyu County, Northeast China via land cover change detection. Int J Appl Earth Obs, 2010, 12: 9-16??
[17]
14 Han Z, Wang T, Yan C, et al. Change trends for desertified lands in the Horqin Sandy Land at the beginning of the twenty—first century. Environ Earth Sci, 2010, 59: 1749-1757??
[18]
15 Hasi B, Wataru T, Tsuguki K, et al. Land cover classification and change analysis in the Horqin Sandy Land from 1975 to 2007. IEEE J-STARS, 2010, 3: 168-177
[19]
16 Zhang C, Niu S, Xu D. Monitoring of desertification in Inner Mongolia based on MODIS data. ICIC, 2010, 3: 2278-2280
[20]
17 Wang X, Zhang C, Hasi E, et al. Has the Three Norths Forest Shelterbelt Program solved the desertification and dust storm problems in arid and semiarid China. J Arid Environ, 2010, 74: 13-22??
[21]
21 Yan Q, Zhu J, Hu Z. Environmental impacts of the shelter forests in Horqin Sandy Land, northeast China. J Environ Qual, 2011, 40: 815-824??
24 Becket H E, McVicar T R, Dijk A I, et al. Global evaluation of four AVHRR-NDVI data sets: Intercomparison and assessment against Landsat imagery. Remote Sens Environ, 2011, 111: 2547-2563
[25]
25 Stockli R, Vidale P L. European plant phenology and climate as seen in a 20-year AVHRR land-surface parameter dataset. Int J Remote Sens,2004, 25: 3303-3330??
[26]
26 Eklundh L, Olsson L. Vegetation index trends for African Sahel 1982-1999. Geophys Res Lett, 2003, 30: 1430-1433??
32 Song Y, Ma M. A statistical analysis of the relationship between climatic factors and the Normalized Difference Vegetation Index in China. Int J Remote Sens, 2011, 32: 3947-3965??