W. Jianguo, Landscape Ecology ?Pattern, Progress, Scale and level, 2001.

H. Nagendra, S. Pareeth, and R. Ghate, People within parks???forest villages, land-cover change and landscape fragmentation in the Tadoba Andhari Tiger Reserve, India, Applied Geography, vol.26, issue.2, pp.96-112, 2006.
DOI : 10.1016/j.apgeog.2005.11.002

Y. Su, Y. Li, and J. Cui, Influences of continuous grazing and livestock exclusion on soil properties in degraded sandy grassland, Inner Mongolia, pp.59-267, 2005.

R. Wu and H. Tiessen, Effect of Land Use on Soil Degradation in Alpine Grassland Soil, China, Soil Science Society of America Journal, vol.66, issue.5, pp.1648-1655, 2002.
DOI : 10.2136/sssaj2002.1648

H. Qing, W. Ranghui, and W. Shixin, Spatial temporal dynamic changes of landscape fragmentation in the upper reaches of Tarim river, Journal of Arid Land Resources and Environment, vol.21, issue.9, pp.73-77, 2007.

H. Chunyang, S. Peijun, and C. Jin, A study on land use/cover change in Beijing area, Geographical Research, vol.20, issue.6, pp.679-687, 2001.

Z. Yili, L. Linshan, and B. Wanqi, Grassland degradation in the source region of the yellow river, Acta Geographica Sinica, vol.61, issue.1, pp.3-14, 2006.

W. Hui, Y. Hongbo, and X. Xianghong, Landscape structure of desertification grassland in source region of yellow river, Chinese Journal of Applied Ecology, vol.17, issue.9, pp.1665-1670, 2006.

L. Lijie, L. Guixiang, and . Jiangping, Research on landscape dynamic change of desert-steppe in Hangjin district Inner Mongolia during last 20years, Chinese Journal of Grassland, vol.29, issue.5, pp.72-78, 2007.

W. Mulan, B. Yuhai, T. La-tan, and . Ya, Analysis on dynamic change of landscape structure of Hunshandake sands, Journal of Arid land and Resources and Environment, vol.21, issue.5, pp.121-125, 2007.

L. Yuechen and L. Chunxia, Study on land use/cover change in Xilinhot city, Bulletin of soil and water conservation, pp.60-64, 2006.

C. Chengyou, J. Deming, and Z. Lihui, Degradation and diversity changes of meadow grassland in Keerqin sandy land, Acta Prataculturae Sinica, vol.15, issue.3, pp.18-26, 2006.

T. Weiguo, X. Bin, and Y. Xiuchun, Advances and factors affecting the estimating of grass production using remote sensing, Acta Prataculturae Sinica, vol.16, issue.2, pp.1-8, 2007.

C. Quangong, Grassland deterioration in the source region of the Yangtze-Yellow rivers and integrated control of ecological environment, Acta Prataculturae Sinica, vol.16, issue.1, pp.10-15, 2007.

C. Quangong, W. , and L. Tiangang, The investigation of grassland degradation in Dari County of Qinghai province I: remote sensing and mapping, Acta Prataculturae Sinica, vol.7, issue.2, pp.58-63, 1998.

W. Qian, L. Peng, and W. Ning, Effect of road on high-frigid grassland vegetation of zoige, World Sci-Tech R&D, vol.29, issue.3, pp.54-61, 2007.

L. Jianping, Z. Zhang-bo, and . Shuqing, Dynamic changes in grassland landscape pattern in western Jilin province, Journal of Lanzhou University (Natural Science), vol.42, issue.4, pp.43-48, 2006.

L. Wu-yunna and . Zhenghai, Changing landscape diversity with time in Xinlinguole steppe, Acta Phytoecologica Sinica, vol.24, issue.1, pp.58-63, 2000.

L. Xuelu, Shape index and its ecological significance in salinized meadow landscape, Practaculture Science, vol.17, issue.2, pp.50-56, 2000.

Z. Tao, X. Danghui, and W. Hui, Landscape pattern characteristics and landscape ecology construction in medium and down stream of Shule river, Practaculture Science, vol.24, issue.4, pp.19-22, 2007.

L. Bo, The rangeland degradation in North China and its preventive strategy, Science Agriculture Sinica, vol.30, issue.6, pp.1-6, 1997.

L. Liu-dongxie, Z. Xinshi, and . Bingbing, Evaluation of human carrying capacity in the Hulunbeier grassland-a case study in Chenbaerhu Qi in Inner Mongolia, pp.1-12, 2007.

Y. Komatsu, A. Tsunekawa, J. , and H. , Evaluation of agricultural sustainability based on human carrying capacity in drylands ??? a case study in rural villages in Inner Mongolia, China, Agriculture, Ecosystems & Environment, vol.108, issue.1, pp.29-43, 2005.
DOI : 10.1016/j.agee.2004.12.017

Z. Huiying, The Hulunbei er prairie sand present situation draws back and the preventing and controlling counter measure, Acta Pratacultuae Sinica, vol.16, issue.3, pp.114-119, 2007.

Z. Deping, W. Xiaoke, and . Hasieerdun, Hulunbier sandy grassland blowouts: Geomorphology, Classification and Significances, Journal of Desert Research, vol.26, issue.6, pp.894-901, 2006.

M. Yuling and Y. Weihong, Fang Xiuqi: Change of grass growth in the Hulun Buir steppe in response to global warming, Arid and Geography, pp.29-33, 2004.

N. Haogang, Y. Leping, and Y. Mujin, Present situation, evolution trend and causes of sandy desertification in Hulunbuir steppe, Journal of Desert Research, vol.25, issue.5, pp.635-639, 2005.

R. Jizhou, Study method of practaculture science, pp.16-52, 1998.

T. Qingjiu and M. Xiangjun, Advances in study on vegetation indices, Advance in Earth sciences, pp.327-333, 1998.