Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China
Hydrological connectivity directly affects aquatic ecological processes, water environment and wetland ecological security, which is essential to the stability of arid ecosystems. However, the mechanism between hydrological connectivity and water-related environment has not been revealed completely....
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/14/19/4977 |
| _version_ | 1827653189201035264 |
|---|---|
| author | Chuanxiu Liu Yaning Chen Gonghuan Fang Honghua Zhou Wenjing Huang Yongchang Liu Xuanxuan Wang Zhi Li |
| author_facet | Chuanxiu Liu Yaning Chen Gonghuan Fang Honghua Zhou Wenjing Huang Yongchang Liu Xuanxuan Wang Zhi Li |
| author_sort | Chuanxiu Liu |
| collection | DOAJ |
| description | Hydrological connectivity directly affects aquatic ecological processes, water environment and wetland ecological security, which is essential to the stability of arid ecosystems. However, the mechanism between hydrological connectivity and water-related environment has not been revealed completely. To address these issues, we use a landscape connectivity approach to assess the connectivity of water patches for analyzing the hydrological connectivity of the Bosten Lake Basin (BLB), as well as its response to human activities and climate change, based on the Joint Research Centre (JRC) global surface water dataset. It shows that the integral index of connectivity (IIC) of the BLB is low (ranging from 0 to 0.2) from 1990 to 2019, with an increasing interannual trend. The connectivity is higher in wet periods and in oases compared with dry periods and high-altitude mountain regions. Correlation and regression analyses indicate that hydrological connectivity has a strong correlation (r > 0.5, <i>p</i> ≤ 0.05) with water area and water level. The interannual and seasonal trends of eight hydrochemical indices in the Bosten Lake have been investigated to systematically elaborate the complex relationships between hydrological connectivity and water quality in the BLB. Results indicated that better hydrological connectivity can improve water quality, and the minimum of pollutants were observed in high hydrological connectivity period, covering approximately 75% of the high-water quality period. These findings could provide scientific support for the water management in the BLB. |
| first_indexed | 2024-03-09T21:13:31Z |
| format | Article |
| id | doaj.art-ea6098a53a6640a3924cb3c0759fcc2d |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T21:13:31Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-ea6098a53a6640a3924cb3c0759fcc2d2023-11-23T21:41:50ZengMDPI AGRemote Sensing2072-42922022-10-011419497710.3390/rs14194977Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, ChinaChuanxiu Liu0Yaning Chen1Gonghuan Fang2Honghua Zhou3Wenjing Huang4Yongchang Liu5Xuanxuan Wang6Zhi Li7State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaHydrological connectivity directly affects aquatic ecological processes, water environment and wetland ecological security, which is essential to the stability of arid ecosystems. However, the mechanism between hydrological connectivity and water-related environment has not been revealed completely. To address these issues, we use a landscape connectivity approach to assess the connectivity of water patches for analyzing the hydrological connectivity of the Bosten Lake Basin (BLB), as well as its response to human activities and climate change, based on the Joint Research Centre (JRC) global surface water dataset. It shows that the integral index of connectivity (IIC) of the BLB is low (ranging from 0 to 0.2) from 1990 to 2019, with an increasing interannual trend. The connectivity is higher in wet periods and in oases compared with dry periods and high-altitude mountain regions. Correlation and regression analyses indicate that hydrological connectivity has a strong correlation (r > 0.5, <i>p</i> ≤ 0.05) with water area and water level. The interannual and seasonal trends of eight hydrochemical indices in the Bosten Lake have been investigated to systematically elaborate the complex relationships between hydrological connectivity and water quality in the BLB. Results indicated that better hydrological connectivity can improve water quality, and the minimum of pollutants were observed in high hydrological connectivity period, covering approximately 75% of the high-water quality period. These findings could provide scientific support for the water management in the BLB.https://www.mdpi.com/2072-4292/14/19/4977hydrological connectivitywater qualityarid regionBosten Lakeinland river-lake systems |
| spellingShingle | Chuanxiu Liu Yaning Chen Gonghuan Fang Honghua Zhou Wenjing Huang Yongchang Liu Xuanxuan Wang Zhi Li Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China Remote Sensing hydrological connectivity water quality arid region Bosten Lake inland river-lake systems |
| title | Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China |
| title_full | Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China |
| title_fullStr | Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China |
| title_full_unstemmed | Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China |
| title_short | Hydrological Connectivity Improves the Water-Related Environment in a Typical Arid Inland River Basin in Xinjiang, China |
| title_sort | hydrological connectivity improves the water related environment in a typical arid inland river basin in xinjiang china |
| topic | hydrological connectivity water quality arid region Bosten Lake inland river-lake systems |
| url | https://www.mdpi.com/2072-4292/14/19/4977 |
| work_keys_str_mv | AT chuanxiuliu hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT yaningchen hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT gonghuanfang hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT honghuazhou hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT wenjinghuang hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT yongchangliu hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT xuanxuanwang hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina AT zhili hydrologicalconnectivityimprovesthewaterrelatedenvironmentinatypicalaridinlandriverbasininxinjiangchina |