Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements
The interactions between vegetation and water balance elements play a crucial role in enhancing the compatibility of water resources and forest-grassland conservation, thereby promoting high-quality development. This study employs key indicators, including the Normalized Difference Vegetation Index...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
《中国工程科学》杂志社
2024-12-01
|
| Series: | 中国工程科学 |
| Subjects: | |
| Online Access: | https://www.engineering.org.cn/sscae/EN/PDF/10.15302/J-SSCAE-2024.06.012 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849722667761926144 |
|---|---|
| author | Dongxu Qin Zhonghua Li Min Xu Dong Wang Xiaoshu Hou |
| author_facet | Dongxu Qin Zhonghua Li Min Xu Dong Wang Xiaoshu Hou |
| author_sort | Dongxu Qin |
| collection | DOAJ |
| description | The interactions between vegetation and water balance elements play a crucial role in enhancing the compatibility of water resources and forest-grassland conservation, thereby promoting high-quality development. This study employs key indicators, including the Normalized Difference Vegetation Index (NDVI), precipitation, actual evapotranspiration, and water yield, spanning the years 1982 to 2019, with a 1 km × 1 km grid as the fundamental analytical unit. It examines the spatiotemporal evolution patterns and interrelationships between vegetation and water balance elements across various spatial scales, such as climatic zones, vegetation zones, tertiary watersheds, and primary watersheds. It identifies regions and watersheds with pronounced conflicts between vegetation increase and water yield reduction, and reveals the spatial interactions between vegetation and water yield. Based on these findings, the study outlines the key challenges and recommendations for scientifically restoring and conserving forests and grasslands under the principle of "coordinated water and vegetation management". While national averages for precipitation, actual evapotranspiration, and water yield exhibit no significant trends, notable spatial patterns emerge at specific scales. Significant conflicts between vegetation increase and water yield reduction are observed in regions such as the warm temperate semi-humid zone, warm temperate deciduous broadleaf forest zone, temperate desert zone, and temperate grassland zone, as well as in major watersheds such as the Huaihe, Haihe, Liaohe, and Yellow Rivers, and in 35.7% of tertiary watersheds. Additionally, the main implementation areas of major ecological projects like the Three-North Shelterbelt Program and the Grain for Green Program (e.g., Northwest Rivers and the Yellow River basin) overlap significantly with the identified conflict-prone areas, raising concerns about the ecological water needs of vegetation in these areas. The study recommends enhancing decision-making scientificity, accounting for natural runoff reduction risks in target setting, and strengthening ecological water supply assurance for major projects, thereby providing valuable insights for the future scientific conservation of forests and grasslands. |
| format | Article |
| id | doaj-art-0a0a85f4e5f54e4eb2e3cfba23286ea0 |
| institution | DOAJ |
| issn | 1009-1742 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | 《中国工程科学》杂志社 |
| record_format | Article |
| series | 中国工程科学 |
| spelling | doaj-art-0a0a85f4e5f54e4eb2e3cfba23286ea02025-08-20T03:11:17Zzho《中国工程科学》杂志社中国工程科学1009-17422024-12-0126614015610.15302/J-SSCAE-2024.06.012Spatiotemporal Evolution and Interactions of Vegetation and Water Balance ElementsDongxu Qin0Zhonghua Li1Min Xu2Dong Wang3Xiaoshu Hou41. Tianjin Urban Planning and Design Institute Co. , Ltd. , Tianjin 300190, China|2. Chinese Academy of Environmental Planning, Beijing 100041, China2. Chinese Academy of Environmental Planning, Beijing 100041, China2. Chinese Academy of Environmental Planning, Beijing 100041, China2. Chinese Academy of Environmental Planning, Beijing 100041, China2. Chinese Academy of Environmental Planning, Beijing 100041, ChinaThe interactions between vegetation and water balance elements play a crucial role in enhancing the compatibility of water resources and forest-grassland conservation, thereby promoting high-quality development. This study employs key indicators, including the Normalized Difference Vegetation Index (NDVI), precipitation, actual evapotranspiration, and water yield, spanning the years 1982 to 2019, with a 1 km × 1 km grid as the fundamental analytical unit. It examines the spatiotemporal evolution patterns and interrelationships between vegetation and water balance elements across various spatial scales, such as climatic zones, vegetation zones, tertiary watersheds, and primary watersheds. It identifies regions and watersheds with pronounced conflicts between vegetation increase and water yield reduction, and reveals the spatial interactions between vegetation and water yield. Based on these findings, the study outlines the key challenges and recommendations for scientifically restoring and conserving forests and grasslands under the principle of "coordinated water and vegetation management". While national averages for precipitation, actual evapotranspiration, and water yield exhibit no significant trends, notable spatial patterns emerge at specific scales. Significant conflicts between vegetation increase and water yield reduction are observed in regions such as the warm temperate semi-humid zone, warm temperate deciduous broadleaf forest zone, temperate desert zone, and temperate grassland zone, as well as in major watersheds such as the Huaihe, Haihe, Liaohe, and Yellow Rivers, and in 35.7% of tertiary watersheds. Additionally, the main implementation areas of major ecological projects like the Three-North Shelterbelt Program and the Grain for Green Program (e.g., Northwest Rivers and the Yellow River basin) overlap significantly with the identified conflict-prone areas, raising concerns about the ecological water needs of vegetation in these areas. The study recommends enhancing decision-making scientificity, accounting for natural runoff reduction risks in target setting, and strengthening ecological water supply assurance for major projects, thereby providing valuable insights for the future scientific conservation of forests and grasslands.https://www.engineering.org.cn/sscae/EN/PDF/10.15302/J-SSCAE-2024.06.012water balancevegetationwater yieldspatiotemporal evolutioninteractionsustainable management |
| spellingShingle | Dongxu Qin Zhonghua Li Min Xu Dong Wang Xiaoshu Hou Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements 中国工程科学 water balance vegetation water yield spatiotemporal evolution interaction sustainable management |
| title | Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements |
| title_full | Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements |
| title_fullStr | Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements |
| title_full_unstemmed | Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements |
| title_short | Spatiotemporal Evolution and Interactions of Vegetation and Water Balance Elements |
| title_sort | spatiotemporal evolution and interactions of vegetation and water balance elements |
| topic | water balance vegetation water yield spatiotemporal evolution interaction sustainable management |
| url | https://www.engineering.org.cn/sscae/EN/PDF/10.15302/J-SSCAE-2024.06.012 |
| work_keys_str_mv | AT dongxuqin spatiotemporalevolutionandinteractionsofvegetationandwaterbalanceelements AT zhonghuali spatiotemporalevolutionandinteractionsofvegetationandwaterbalanceelements AT minxu spatiotemporalevolutionandinteractionsofvegetationandwaterbalanceelements AT dongwang spatiotemporalevolutionandinteractionsofvegetationandwaterbalanceelements AT xiaoshuhou spatiotemporalevolutionandinteractionsofvegetationandwaterbalanceelements |