Water clarity response to climate warming and wetting of the Inner Mongolia-Xinjiang Plateau: A remote sensing approach
文献类型：期刊论文
| 作者 | Zhang, Yibo; Shi, Kun; Zhang, Yunlin; Moreno-Madrinan, Max Jacobo; Xu, Xuan; Zhou, Yongqiang; Qin, Boqiang; Zhu, Guangwei; Jeppesen, Erik |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021 |
| 卷号 | 796 |
| 英文摘要 | Water clarity (generally quantified as the Secchi disk depth: SDD) is a key variable for assessing environmental changes in lakes. Using remote sensing we calculated and elucidated the SDD dynamics in lakes in the Inner Mongolia-Xinjiang Lake Zone (IMXL) from 1986 to 2018 in response to variations in temperature, rainfall, lake area, normalized difference vegetation index (NDVI) and Palmer's drought severity index (PDSI). The results showed that the lakes with high SDD values are primarily located in the Xinjiang region at longitudes of 75 degrees- 93 degrees E. In contrast, the lakes in Inner Mongolia at longitudes of 93 degrees-118 degrees E generally have low SDD values. In total, 205 lakes show significant increasing SDD trends (P < 0.05), with a mean rate of 0.15 m per decade. In con -trast, 75 lakes, most of which are located in Inner Mongolia, exhibited significant decreasing trends with a mean rate of 0.08 m per decade (P < 0.05). Pooled together, an overall increase is found with a mean rate of 0.14 m per decade. Multiple linear regression reveals that among the five variables selected to explain the variations in SDD, lake area accounts for the highest proportion of variance (25%), while temperature and rainfall account for 12% and 10%, respectively. In addition, rainfall accounts for 52% of the variation in humidity, 8% of the variation in lake area and 7% of the variation in NDVI. Temperature accounts for 27% of the variation in NDVI, 39% of the variation in lake area and 22% of the variation in PDSI. Warming and wetting conditions in IMXL thus promote the growth of vegetation and cause melting of glaciers and expansion of lake area, which eventually leads to improved water quality in the lakes in terms of higher SDD. In contrast, lakes facing more severe drought conditions, became more turbid. (c) 2021 Elsevier B.V. All rights reserved. |
| 源URL | [http://159.226.73.51/handle/332005/20337]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Yibo,Shi, Kun,Zhang, Yunlin,et al. Water clarity response to climate warming and wetting of the Inner Mongolia-Xinjiang Plateau: A remote sensing approach[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,796. |
| APA | Zhang, Yibo.,Shi, Kun.,Zhang, Yunlin.,Moreno-Madrinan, Max Jacobo.,Xu, Xuan.,...&Jeppesen, Erik.(2021).Water clarity response to climate warming and wetting of the Inner Mongolia-Xinjiang Plateau: A remote sensing approach.SCIENCE OF THE TOTAL ENVIRONMENT,796. |
| MLA | Zhang, Yibo,et al."Water clarity response to climate warming and wetting of the Inner Mongolia-Xinjiang Plateau: A remote sensing approach".SCIENCE OF THE TOTAL ENVIRONMENT 796(2021). |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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