Institutional Repository of School of Agricultural and Forestry Economics and Management
THE VERTIFICATION OF CLIMATE DROUGHT DYNAMIC MONITORING IN ALPINE MEADOW BASED ON STANDARDIZED PRECIPITATION INDEX AND GIS | |
Zhao, Xinlai; Li, Wenlong; Zhao, Yuting; Xu, Jing; Guo, Xulin | |
2016 | |
会议名称 | 2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) |
页码 | 4226-4228 |
出版地 | 345 E 47TH ST, NEW YORK, NY 10017 USA |
出版者 | IEEE |
摘要 | By using monthly precipitation data and standardized precipitation index (SPI), combining the normalized difference vegetation index (NDVI) data and historical statistical data of drought area, the drought trend of Gannan region from 1965 to 2013 was analyzed. The results showed that: from 1965 to 2013, the drought index in study area rose firstly (1965-1976) and leveled off (1977-1989), then decreased (1990-2001) and finally rose again (2000-2012). SPI was closely related to NDVI, y=0.0298x +0.062+0.7678, ( R-2 = 0.9034), y is the NDVI value of the pixel, x is the SPI value of the meteorological stations. Compared with historical data, SPI6 could reveal the drought conditions in alpine meadows commendably. These results would provide effective theory and method which can support related research in the future study. |
关键词 | Alpine grassland Climate drought SPI |
DOI | 10.1109/IGARSS.2016.7730101 |
URL | 查看原文 |
收录类别 | CPCI |
语种 | 英语 |
WOS研究方向 | Engineering ; Geology ; Remote Sensing |
WOS类目 | Engineering, Electrical & Electronic ; Geosciences, Multidisciplinary ; Remote Sensing |
WOS记录号 | WOS:000388114604059 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.lzufe.edu.cn/handle/39EH0E1M/9721 |
专题 | 农林经济管理学院 |
作者单位 | 1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Peoples R China; 2.Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China; 3.Lanzhou Commercial Coll, Sch Agr & Forestry Econ & Management, Lanzhou 730020, Peoples R China; 4.Univ Saskatchewan, Dept Geog & Planning, Saskatoon, SK S7N 5C8, Canada |
推荐引用方式 GB/T 7714 | Zhao, Xinlai,Li, Wenlong,Zhao, Yuting,et al. THE VERTIFICATION OF CLIMATE DROUGHT DYNAMIC MONITORING IN ALPINE MEADOW BASED ON STANDARDIZED PRECIPITATION INDEX AND GIS[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2016:4226-4228. |
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