Land degradation dynamic in the first decade of twenty-first century in the Beijing-Tianjin dust and sandstorm source region
文献类型：期刊论文
| 作者 | Li, Xiaosong1; Wang, Hongyan1; Wang, Jinying1; Gao, Zhihai1 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 74期号:5页码:10763-10787 |
| 关键词 | Land degradation NPP and RUE Sen's slope Mann-Kendall |
| 通讯作者 | Gao, ZH (reprint author), Chinese Acad Forestry, Inst Forest Resources Informat Tech, 1 Dong Xiao Fu, Beijing 100091, Peoples R China. |
| 英文摘要 | Land degradation dynamic assessment is very important to understand the effectiveness of ecological engineering and provide decision support for future restorations. Taking the Beijing-Tianjin dust and sandstorm source region (BTSSR) as the study area, the land degradation dynamic in the first decade of twenty-first century is assessed by utilizing the time series trends of net primary production (NPP) and modified rain use efficiency (RUE), respectively, and their sensitivities and performances are evaluated through the validation. The results shows that (1) a widespread degradation in the BTSSR is identified from 2000 to 2010, with a proportion of 52.7 % by using NPP, and 65.2 % when using RUE; (2) the proposed RUE is effective in eliminating high correlations between NPP and precipitation, and overcame the problem that the RUE assumption often breaks down at the pixel scale, through incorporating the land degradation assessment division; and (3) the RUE is preferred for land degradation assessment with a higher accuracy (93.5 %), compared with NPP (81 %), which can provide valuable insights into the land degradation assessment in the arid and semi-arid regions. |
| 研究领域[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360401400055 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38122]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Li, Xiaosong 2.Wang, Hongyan 3.Wang, Jinying] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China 4.[Wang, Hongyan 5.Gao, Zhihai] Chinese Acad Forestry, Inst Forest Resources Informat Tech, Beijing 100091, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaosong,Wang, Hongyan,Wang, Jinying,et al. Land degradation dynamic in the first decade of twenty-first century in the Beijing-Tianjin dust and sandstorm source region[J]. ENVIRONMENTAL EARTH SCIENCES,2015,74(5):10763-10787. |
| APA | Li, Xiaosong,Wang, Hongyan,Wang, Jinying,&Gao, Zhihai.(2015).Land degradation dynamic in the first decade of twenty-first century in the Beijing-Tianjin dust and sandstorm source region.ENVIRONMENTAL EARTH SCIENCES,74(5),10763-10787. |
| MLA | Li, Xiaosong,et al."Land degradation dynamic in the first decade of twenty-first century in the Beijing-Tianjin dust and sandstorm source region".ENVIRONMENTAL EARTH SCIENCES 74.5(2015):10763-10787. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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