landcoverchangealongtheqinghaitibethighwayandrailwayfrom1981to2001
文献类型：期刊论文
| 作者 | Ding Mingjun; Zhang Yili ; Shen Zhenxi; Liu Linshan; Zhang Wei; Wang Zhaofeng; Bai Wanqi; Zheng Du
|
| 刊名 | journalofgeographicalsciences
 |
| 出版日期 | 2006 |
| 卷号 | 16期号:4页码:387 |
| ISSN号 | 1009-637X |
| 英文摘要 | Based on the NOAA AVHRR-NDVI monthly data from 1981 to 2001, the spatia! distribution and dynamic change of land cover along the Qinghai-Tibet Highway and Railway were studied. The results of the analytical data indicate that the NDVI values in July, August and September are rather high during a year, and a linear trend by calculating NDVI of each pixel computed based on the average values of NDVI in July, August and September were obtained. The results are as follows: 1) Land cover of the study area by NDVI displays high at two sides of the area and low in the center, and agriculture area > alpine meadow > alpine grassland > desert grassland. 2) In the study area, the amount of pixels with high increase, slight increase, no change, slight decrease and high decrease account for 0.29%, 14.86%, 67.61%, 16.7% and 0.57% of the whole area, respectively. The increase of land cover pixels is mainly in the agriculture and alpine meadow and the decrease pixels mainly in the alpine grassland, desert grassland and hungriness. Grassland and hungriness contribute to the decrease mostly and artificial land and meadow contribute to the increase mostly. 3) In the area where human beings live, the changing trend is obvious, such as the valleys of Lhasa River and Huangshui River and area along the Yellow River; in the high altitude area with fewer people living, the changing trend is relatively low, like the area of Hoh Xil. 4) Human being's behaviors are a key factor followed by the climate changes affecting land cover. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/117768]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 中国科学院地理科学与资源研究所 |
| 推荐引用方式 GB/T 7714 | Ding Mingjun,Zhang Yili,Shen Zhenxi,et al. landcoverchangealongtheqinghaitibethighwayandrailwayfrom1981to2001[J]. journalofgeographicalsciences,2006,16(4):387. |
| APA | Ding Mingjun.,Zhang Yili.,Shen Zhenxi.,Liu Linshan.,Zhang Wei.,...&Zheng Du.(2006).landcoverchangealongtheqinghaitibethighwayandrailwayfrom1981to2001.journalofgeographicalsciences,16(4),387. |
| MLA | Ding Mingjun,et al."landcoverchangealongtheqinghaitibethighwayandrailwayfrom1981to2001".journalofgeographicalsciences 16.4(2006):387. |
入库方式： OAI收割
来源：地理科学与资源研究所
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