Chin J Plan Ecolo ›› 2006, Vol. 30 ›› Issue (2): 268-277.doi: 10.17521/cjpe.2006.0036

• Research Articles • Previous Articles     Next Articles


CAO Xin1; GU Zhi_Hui1; CHEN Jin1*; LIU Jin2;SHI Pei_Jun1   

  1. 1 Key Laboratory of Environment Change and Natural Disaster, Ministry of Education, College of Resource Science and Technology, Beijing Normal University, Beijing 100875, China; 2 Bureau of Science and Technology, Xinlin Gole, Xilinhote, Inner Mongolia 026000, China
  • Online:2006-03-30 Published:2006-03-30
  • Contact: CHEN Jin


Grassland degradation in arid and semi_arid steppe results from the integrated impacts of nature and human factors and is one of the most important ecological and economic issues in China. It is necessary to discriminate betweenn atural and human_induced degradation for purposes of rehabilitation and restoration of degraded steppe regions. Based on existing research, we proposed a method that integrated regression analysis and residual analysis to discriminate between areas degraded by human activities and those caused naturally. We applied this method to the Xilin Gole Steppe in Inner Mongolia, China as a case study using Pathfinder NOAA/AVHRR  NDVI data from 1983 to 1999 and meteorological data within the same time period. Firstly, we constructed a regression model using the first 6 years (1983_1988) of data for each pixel between annual maximal  NDVI and meteorological data (precipitation and temperature) including a time lag for precipitation. Secondly, the difference or residuals between actual and predicted maximal  NDVI were derived for the latter 11 years (1989-1999). The analysis of the trends in the residuals of the first data set over time indicated that pixels with negative trends were human_induced degradation. The results showed that the Xilin Gole Steppe experienced a heavier degree of human_induced degradation from 1989 to 1999 with larger areas being impacted. The results are in accord with the status quo of the study area.

No related articles found!
Full text



[1] Hongjuan Jia Junwen Zhang. Quantitative Analysis of Pollen Morphology with MATLAB[J]. Chin Bull Bot, 2007, 24(04): 511 -515 .
[2] Sun Kun and Wang Qing-rui. Cytological Studies on Species of Viola from Northwest China[J]. Chin Bull Bot, 1996, 13(01): 46 -47 .
[3] Pan Rui-chi. Plant growth regulators and rooting[J]. Chin Bull Bot, 1995, 12(专辑3): 8 -14 .
[4] Shumei Ma, Rui Zhang, Yan Sun, Dongjun Liu, Yifan Guo, Wenlin Liu, Fengying Song, Shuping Yang, Jumei Zhang, Guangzu Sun, Hongji Zhang. Genetic Diversity of Wheat Germplasm Resources from Far East Russia and Heilongjiang Province[J]. Chin Bull Bot, 2014, 49(2): 150 -160 .
[5] Cao Kun-fang. An Overview of Plant Reproductive Ecology[J]. Chin Bull Bot, 1993, 10(02): 15 -23 .
[6] WANG Qin YANG Jian WANG Yu-Fei. Pinacecous Cones in the Miocene Shanwang Flora[J]. Chin Bull Bot, 2000, 17(专辑): 262 -263 .
[7] LIU Zhao-Hua Jason Hilton LI Cheng-Sen. Review on the Origin, Evolution and Phylogeny of Marattiles[J]. Chin Bull Bot, 2000, 17(专辑): 39 -52 .
[8] Zheng Zhong-hua. A Method of Preparing Pollen Section for Transmission Electron Microscopy[J]. Chin Bull Bot, 1988, 5(03): 182 -184 .
[9] LIANG Ming-Shan ZENG Yu ZHOU Xiang HOU Liu-Ji LI Xia. Genetic Markers and Their Applications in Identifying Crop Cultivars[J]. Chin Bull Bot, 2001, 18(03): 257 -265 .
[10] Zhang Feng and Shangguan Tie-liang. On the Biomass of Larix principis-rupprechtii Forest in Guandi Mountain , Shanxi Province[J]. Chin Bull Bot, 1992, 9(04): 51 -52 .