Eco-environmental degradation and causal analysis in the source region of the Yellow River
文献类型：期刊论文
| 作者 | Wang, G; Qian, J; Cheng, G; Lai, Y |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2001-05-01 |
| 卷号 | 40期号:7页码:884-890 |
| 关键词 | source region of Yellow River eco-environmental change human activity climate change permafrost degradation |
| ISSN号 | 0943-0105 |
| 通讯作者 | Wang, G() |
| 英文摘要 | Based on three phases of satellite-image data and field investigation results collected between 1976 and 1996, climate changes and intensity of human activity were studied for the time period to investigate the causes responsible for the region's environmental changes. The results show that, compared with the data for the 1970s, the eco-environment in the source region of the Yellow River degraded markedly from the 1980s to the 1990s. Degradation was most prominent from the mid-1990s onward, with significant degradation of high-cold grassland and high-cold meadow vegetation and also a rapid expansion of desertification. The area of degraded vegetation increased from 24.5% in the 1980s to 34.5% of total grassland and high-cold meadow in the 1990s. The rate of land desertification increased from 3.96% in the 1980s to 34.72% in the 1990s. The main reasons for these changes include the intensity of overgrazing ( which was very high), and the climate in this region which is becoming drier and warmer, resulting in a gradual degradation of the permafrost. |
| 收录类别 | SCI |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000168922400009 |
| 出版者 | SPRINGER-VERLAG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556709 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, G |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soil Eng, Cold & Arid Reg Environm Engn Res Inst, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Dept Geol, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, G,Qian, J,Cheng, G,et al. Eco-environmental degradation and causal analysis in the source region of the Yellow River[J]. ENVIRONMENTAL GEOLOGY,2001,40(7):884-890. |
| APA | Wang, G,Qian, J,Cheng, G,&Lai, Y.(2001).Eco-environmental degradation and causal analysis in the source region of the Yellow River.ENVIRONMENTAL GEOLOGY,40(7),884-890. |
| MLA | Wang, G,et al."Eco-environmental degradation and causal analysis in the source region of the Yellow River".ENVIRONMENTAL GEOLOGY 40.7(2001):884-890. |
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来源：寒区旱区环境与工程研究所
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