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| DOI | 10.1016/j.ecolind.2024.111674 |
| Remote sensing of lake chlorophyll-a in Qinghai-Tibet Plateau responding to climate factors: Implications for oligotrophic lakes | |
| 发表日期 | 2024 |
| ISSN | 1470-160X |
| EISSN | 1872-7034 |
| 起始页码 | 159 |
| 卷号 | 159 |
| 英文摘要 | Plateau lake chlorophyll-a concentration [Chl-a] is one of the key water quality parameters to characterize trophic state responding to climate change. A total of 106 samples were collected in situ lake samples from 16 typical lakes in Qinghai-Tibet Plateau (QTP) from 2015 and 2019 to match Landsate series satellite imagery data. We developed a new empirical model of [Chl-a] and then analyze their relationships with climate factors, for oligotrophic lakes. The results show that the [Chl-a] model performed well with good fitting performance (R2 = 0.72) and few errors (RMSE = 0.49 ug L-1, and MAE = 0.38 ug L-1). The results further revealed that the amount of lakes with reduced [Chl-a] has gradually increased over the past 30 years (1990-2000: 50%; 2000-2010: 57.8 %; 2010-2020: 70%). Although the biochemical parameters of QTP lakes have been studied in more detail, this study found that[Chl-a] showed equilibrium with climate factors, e.g., averaged temperature and precipitation, from satellite long-term observations, as well as the lake area changes.The model could use available bands on Landsat sensors to generate historical[Chl-a] data for evaluating the water qualities changes and decision-making related to the Plateau's oligotrophic lakes and global climate change. |
| 英文关键词 | Chlorophyll-a; Remote sensing; QTP; Climate factors; GEE |
| 语种 | 英语 |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS类目 | Biodiversity Conservation ; Environmental Sciences |
| WOS记录号 | WOS:001186698100001 |
| 来源期刊 | ECOLOGICAL INDICATORS
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/285502 |
| 作者单位 | Chinese Academy of Sciences; Northeast Institute of Geography & Agroecology, CAS; National Satellite Ocean Application Service; Ministry of Natural Resources of the People's Republic of China; Nanjing Normal University |
| 推荐引用方式 GB/T 7714 | . Remote sensing of lake chlorophyll-a in Qinghai-Tibet Plateau responding to climate factors: Implications for oligotrophic lakes[J],2024,159. |
| APA | (2024).Remote sensing of lake chlorophyll-a in Qinghai-Tibet Plateau responding to climate factors: Implications for oligotrophic lakes.ECOLOGICAL INDICATORS,159. |
| MLA | "Remote sensing of lake chlorophyll-a in Qinghai-Tibet Plateau responding to climate factors: Implications for oligotrophic lakes".ECOLOGICAL INDICATORS 159(2024). |
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