/
| 〈 |
|
〉 |
Chinese Journal of Plant Ecology >
ANALYSIS OF HUMAN_INDUCED STEPPE DEGRADATION BASED ON REMOTE SENSING IN XILIN GOLE, INNER MONGOLIA, CHINA
Received date: 2005-01-20
Accepted date: 2005-06-17
Online published: 2006-03-30
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 between natural 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.
CAO Xin, GU Zhi_Hui, CHEN Jin, LIU Jin, SHI Pei_Jun . ANALYSIS OF HUMAN_INDUCED STEPPE DEGRADATION BASED ON REMOTE SENSING IN XILIN GOLE, INNER MONGOLIA, CHINA[J]. Chinese Journal of Plant Ecology, 2006 , 30(2) : 268 -277 . DOI: 10.17521/cjpe.2006.0036
| [1] | Chen J, Jonsson P, Tamura M, Gu ZH, Matsushita B, Eklundh L (2004). A simple method for reconstructing a high_quality NDVI time_series data set based on the Savitzky_Golay filter . Remote Sensing of Environment, 91,332-344. |
| [2] | Davidson A, Csillag F (2003). A comparison of three approaches for predicting C 4 species cover of northern mixed grass prairie . Remote Sensing of Environment, 86,70-82. |
| [3] | Del Valle HF, Elissalde NO, Gagliardini DA, Milovich J (1998). Status of desertification in the Patagonian region: assessment and mapping from satellite imagery. Arid Soil Research and Rehabilitation, 12,95-121. |
| [4] | Evans J, Geerken R (2004). Discrimination between climate and human_induced dryland degradation. Journal of Arid Environments, 57,535-554. |
| [5] | Geerken R, Ilaiwi M (2004). Assessment of rangeland degradation and development of a strategy for rehabilitation. Remote Sensing of Environment, 90,490-504. |
| [6] | James ME, Kalluri SNV (1994). The pathfinder AVHRR land data set: an improved coarse resolution data set for terrestrial monitoring. International Journal of Remote Sensing, 15,3347-3363. |
| [7] | Li B (李博) (1997). Steppe degradation and its prevention in North China. Sientia Agricultura Sinica (中国农业科学), 30(6),1-9. (in Chinese with English abstract) |
| [8] | Li XB (李晓兵), Shi PJ (史培军) (2000). Sensitivity analysis of variation in NDVI, temperature and precipitation in typical vegetation types across China . Acta Phytoecologica Sinica (植物生态学报), 24,379-382. (in Chinese with English abstract) |
| [9] | Li YH (李永宏) (1995). Restoration dynamics of degraded grasslands in the typical steppe zone of Inner Mongolia. Chinese Biodiversity (生物多样性), 3,125-130. (in Chinese with English abstract) |
| [10] | Liu ZL (刘钟龄), Wang W (王炜), Hao DY (郝敦元), Liang CZ (梁存柱) (2002). Probes on the degeneration and recovery succession mechanisms of Inner Mongolia Steppe. Journal of Arid Land Resources and Environment (干旱区资源与环境), 26,84-91. (in Chinese with English abstract) |
| [11] | Liu ZM (刘志明), Yan M (晏明), Wang GQ (王贵卿), Meng H (孟华), Zhang WZ (张文哲), Wang CH (王春晖) (2001). Analysis on grassland degeneration in the West Jilin Province based on satellite RS. Scientia Geographica Sinica (地理科学), 24,452-456. (in Chinese with English abstract) |
| [12] | Pan YZ (潘耀忠), Gong DY (龚道溢), Deng L (邓磊), Li J (李京), Gao J (高静) (2004). Smart distance searching_based and DEM_informed interpolation of surface air temperature in China . Acta Geographica Sinica (地理学报), 59,366-374. (in Chinese with English abstract) |
| [13] | Tong C (仝川), Yang JR (杨景荣), Yong WY (雍伟义), Yong SP (雍世鹏) (2002). Spatial pattern of steppe degradation in Xilin River basin of Inner Mongolia. Journal of Natural Resources (自然资源学报), 17,571-578. (in Chinese with English abstract) |
| [14] | Tong C, Wu J, Yong S, Yang J, Yong W (2004). A landscape_scale assessment of steppe degradation in the Xilin River Basin, Inner Mongolia, China. Journal of Arid Environments, 59,133-149. |
| [15] | Townshend JRG (1994). Global data sets for land applications from the Advance Very High Resolution Radiometer: an introduction. International Journal of Remote Sensing, 15,3319-3332. |
| [16] | Wang SP (汪诗平), Li YH (李永宏) (1999). Degradation mechanism of typical grassland in Inner Mongolia. Chinese Journal of Applied Ecology (应用生态学报), 10,437-441. (in Chinese with English abstract) |
| [17] | Wang W (王炜), Liu ZL (刘钟龄), Hao DY (郝敦元), Liang CZ (梁存柱) (1996a). Research on the restoring succession of the degenerated grassland in Inner Mongolia. I. Basic characteristics and driving force for restoration of the degenerated grassland. Acta Phytoecologica Sinica (植物生态学报), 20,449-459. (in Chinese with English abstract) |
| [18] | Wang W (王炜), Liu ZL (刘钟龄), Hao DY (郝敦元), Liang CZ (梁存柱) (1996b). Research on the restoring succession of the degenerated grassland in Inner Mongolia. II. Analysis of the restoring processes. Acta Phytoecologica Sinica (植物生态学报), 20,460-471. (in Chinese with English abstract) |
| [19] | Wang YR (王艳荣), Yong SP (雍世鹏) (2004). The use of multitemporal near_ground spectral reflectance to discriminate among degraded grasslands. Acta Phytoecologica Sinica (植物生态学报), 28,406-413. (in Chinese with English abstract) |
| [20] | Wu YN (乌云娜), Yang C (杨持) (1994). The quantitative analysis of steppe degenerating critical grade on Neimenggu Steppe. Acta Scientiarum Naturalium Universitatis Neimenggu (内蒙古大学学报自然科学版), 25,437-443. (in Chinese with English abstract) |
| [21] | Xue Y, Fennessy MD (2002). Under what conditions does land cover change impact regional climate? In: Reynolds JF, Stafford Smith DMS eds. Global Desertation: Do Humans Cause Deserts? Dahlem University Press, Berlin,59-74. |
/
| 〈 |
|
〉 |