An approach to the fluctuation mechanism of ecotone
文献类型：期刊论文
| 作者 | Sun, W; Wu, W; Zhang, B |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2002 |
| 卷号 | 14期号:1页码:127-131 |
| 关键词 | fluctuation mechanism land productivity population overloading weakness degree |
| ISSN号 | 1001-0742 |
| 通讯作者 | Sun, W() |
| 英文摘要 | In this paper, the relationship among land productivity, population pressure and the fluctuation mechanism of ecotone is analyzed, taking counties and banners of southeast Inner Mongolia plateau as an example, which is the most fragile part in the farming and husbandry interleaving belt of north China due to its severe desertification degree and low level of economic development. The C-v for the total output value of agriculture decreases from southeast to northwest, with the same rule as which the overloading population cumulated distributes, and both indicators have close relation with the high linear coefficient of 0.83. These reveal tire fluctuation mechanism for ecotone: fluctuation of the level of economic development is a scientific and practical measure both to weakness degree and to instability of ecotone, because it is a synthesized response to tire variation of climate as well as irrational land uses, which reinforce and magnify the fluctuation. In detail, the heavier the population overloading, the severer the grassland reclamation, the stronger the dependence of regional productivity on rainfall, the lower the level of economic development, the rougher the fluctuation of ecotone, but the weaker the FRED system. |
| 收录类别 | SCI |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000174834900022 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556805 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Sun, W |
| 作者单位 | 1.S China Normal Univ, Dept Geog, Guangzhou 510631, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, W,Wu, W,Zhang, B. An approach to the fluctuation mechanism of ecotone[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2002,14(1):127-131. |
| APA | Sun, W,Wu, W,&Zhang, B.(2002).An approach to the fluctuation mechanism of ecotone.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,14(1),127-131. |
| MLA | Sun, W,et al."An approach to the fluctuation mechanism of ecotone".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 14.1(2002):127-131. |
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来源：寒区旱区环境与工程研究所
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