Peatland area change in the southern Altay Mountains over the last twenty years based on GIS and RS analysis
文献类型：期刊论文
| 作者 | Li, Huan1; Xu, Dingyi1; Zhao, Yan2
|
| 刊名 | FRONTIERS OF EARTH SCIENCE
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 8期号:4页码:558-563 |
| 关键词 | Rs Image Dem Image Gis Analysis Peatland Area Change The Altay Mountains |
| 文献子类 | Article |
| 英文摘要 | Analyses results of total peatland area changes in the southern Altay Mountain region over the past 20 years are discussed in this paper. These analyses were based on remote sensing (RS) and geographical information system (GIS) studies. Possible control methods are evaluated by comparing these results to other regional records and climate data. The area of the peatland zones was calculated by overlaying a peatland layer of Landsat TM (Thematic Map) image constructed by using supervised classification with a layer of slope based on a digital elevation model (DEM). The results show that slope layer is crucial to improving the accuracy of peatland extracted from TM images. The peatland area of the Altay Mountains increased from 931.5 km(2) in 1990 to 977.7 km(2) in 2010. This trend is consistent with the climate change in this region, due in part to increasing temperatures and precipitation, suggesting possible climate controls on peatland expansion. The increase in the peatland area in the Altay Mountains over the last 20 years has been influenced by the westerlies. Alternatively, changes in the largest highland peatland area of the Zoige Basin, located in the eastern Tibetan Plateau have been influenced by the intensity of the Asian summer monsoons. In addition to increased temperatures, decreased precipitation in the Zoige Basin and increased precipitation in the Altay Mountains, due to varied patterns of atmospheric circulation, are the probable causes for driving the change differences in these two peatland areas. |
| WOS关键词 | INTERANNUAL VARIATIONS ; TEMPERATURE ; VEGETATION ; BASIN ; PRECIPITATION ; PLATEAU ; CHINA ; NDVI |
| 语种 | 英语 |
| WOS记录号 | WOS:000345389600009 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/68467]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Yan |
| 作者单位 | 1.Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Huan,Xu, Dingyi,Zhao, Yan. Peatland area change in the southern Altay Mountains over the last twenty years based on GIS and RS analysis[J]. FRONTIERS OF EARTH SCIENCE,2014,8(4):558-563. |
| APA | Li, Huan,Xu, Dingyi,&Zhao, Yan.(2014).Peatland area change in the southern Altay Mountains over the last twenty years based on GIS and RS analysis.FRONTIERS OF EARTH SCIENCE,8(4),558-563. |
| MLA | Li, Huan,et al."Peatland area change in the southern Altay Mountains over the last twenty years based on GIS and RS analysis".FRONTIERS OF EARTH SCIENCE 8.4(2014):558-563. |
入库方式： OAI收割
来源：地理科学与资源研究所
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