Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin
In arid and semiarid regions, lake-basin ecosystems are an important part of watershed security barriers, playing an important role in maintaining the stability of ecological patterns. However, the ecological environment of the lake-basin system has been gradually degraded in recent years, and its c...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Bulletin of Geological Science and Technology
2023-05-01
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| Series: | 地质科技通报 |
| Subjects: | |
| Online Access: | https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0080 |
| _version_ | 1797277595166834688 |
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| author | Yanying Lu Wenke Wang Ming Zhao Zhitong Ma Zicheng Yan Jiangnana Jing |
| author_facet | Yanying Lu Wenke Wang Ming Zhao Zhitong Ma Zicheng Yan Jiangnana Jing |
| author_sort | Yanying Lu |
| collection | DOAJ |
| description | In arid and semiarid regions, lake-basin ecosystems are an important part of watershed security barriers, playing an important role in maintaining the stability of ecological patterns. However, the ecological environment of the lake-basin system has been gradually degraded in recent years, and its change process is accompanied by a complex dynamic mechanism. In the present study, we explored the spatial variability of the ecological environment of the lake-basin system and its drivers by taking Baozhainao Lake in the Mu Us Sandy Land of the Ordos Basin as the study area.In-situ dynamic monitoring, sample survey, statistical analysis and numerical simulation were employed. The distribution patterns of typical vegetation in the basin were determined and the mechanisms underlying the mutual feedbacks between subsurface hydrological process and lakeshore ecosystem was explored. The results show that the Baozhainao lake-basin ecosystem consists of four zoning types, namely, the lake zone, the lake nearshore fluctuation zone, the lakeshore beach zone, and the lakeshore wind beach zone. From the lake to the beach zone, the depth of water table increased gradually and the vegetation type transitions from water-loving and salt-tolerant to drought-tolerant. It was further found that the presence of vegetation on the lake shore significantly affects the circulation mode of the groundwater flow system. The conversion between lake and groundwater occurs mainly in the local groundwater flow system, resulting in a significant reduction in groundwater recharge to the lake.The results of this study can provide a scientific basis for the restoration and conservation of plant species diversity and vegetated ecosystems in the lake nearshore fluctuation zoneand lakeshore wind beach zone in arid regions. |
| first_indexed | 2024-03-07T15:50:42Z |
| format | Article |
| id | doaj.art-c7a3ea100bad4ab8bd56d073dabae70c |
| institution | Directory Open Access Journal |
| issn | 2096-8523 |
| language | zho |
| last_indexed | 2024-03-07T15:50:42Z |
| publishDate | 2023-05-01 |
| publisher | Editorial Department of Bulletin of Geological Science and Technology |
| record_format | Article |
| series | 地质科技通报 |
| spelling | doaj.art-c7a3ea100bad4ab8bd56d073dabae70c2024-03-05T02:43:29ZzhoEditorial Department of Bulletin of Geological Science and Technology地质科技通报2096-85232023-05-0142327228010.19509/j.cnki.dzkq.2022.0080dzkjtb-42-3-272Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos BasinYanying Lu0Wenke Wang1Ming Zhao2Zhitong Ma3Zicheng Yan4Jiangnana Jing5School of Water and EnvironmentSchool of Water and EnvironmentSchool of Water and EnvironmentSchool of Water and EnvironmentSchool of Water and EnvironmentSchool of Water and EnvironmentIn arid and semiarid regions, lake-basin ecosystems are an important part of watershed security barriers, playing an important role in maintaining the stability of ecological patterns. However, the ecological environment of the lake-basin system has been gradually degraded in recent years, and its change process is accompanied by a complex dynamic mechanism. In the present study, we explored the spatial variability of the ecological environment of the lake-basin system and its drivers by taking Baozhainao Lake in the Mu Us Sandy Land of the Ordos Basin as the study area.In-situ dynamic monitoring, sample survey, statistical analysis and numerical simulation were employed. The distribution patterns of typical vegetation in the basin were determined and the mechanisms underlying the mutual feedbacks between subsurface hydrological process and lakeshore ecosystem was explored. The results show that the Baozhainao lake-basin ecosystem consists of four zoning types, namely, the lake zone, the lake nearshore fluctuation zone, the lakeshore beach zone, and the lakeshore wind beach zone. From the lake to the beach zone, the depth of water table increased gradually and the vegetation type transitions from water-loving and salt-tolerant to drought-tolerant. It was further found that the presence of vegetation on the lake shore significantly affects the circulation mode of the groundwater flow system. The conversion between lake and groundwater occurs mainly in the local groundwater flow system, resulting in a significant reduction in groundwater recharge to the lake.The results of this study can provide a scientific basis for the restoration and conservation of plant species diversity and vegetated ecosystems in the lake nearshore fluctuation zoneand lakeshore wind beach zone in arid regions.https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0080ordos basinlake-basin systemecological environment changedriving forcemutual feedback mechanism |
| spellingShingle | Yanying Lu Wenke Wang Ming Zhao Zhitong Ma Zicheng Yan Jiangnana Jing Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin 地质科技通报 ordos basin lake-basin system ecological environment change driving force mutual feedback mechanism |
| title | Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin |
| title_full | Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin |
| title_fullStr | Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin |
| title_full_unstemmed | Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin |
| title_short | Drivers of ecological environment changes in the Baozhainao lake-basin system, Ordos Basin |
| title_sort | drivers of ecological environment changes in the baozhainao lake basin system ordos basin |
| topic | ordos basin lake-basin system ecological environment change driving force mutual feedback mechanism |
| url | https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0080 |
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