Relationships Between Key Dryland Ecosystem Services: A Case Study in Ordos, China
Relationships Between Key Dryland Ecosystem Services: A Case Study in Ordos, China
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DOI：
10.3389/feart.2022.937491
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发表时间：
2022-07
影响因子：
2.9
通讯作者：
Ning Su;Yuanyuan Zhao;Guodong Ding;W. Duan
中科院分区：
文献类型：
--
作者：
Ning Su;Yuanyuan Zhao;Guodong Ding;W. Duan
全球环境变化和人类活动的增加严重损害了旱地生态系统服务功能。为了改进生态系统，有必要了解它们在旱地如何相互作用。本研究以位于中国北方的鄂尔多斯旱地为研究区域，对鄂尔多斯旱地的4个关键生态系统--食物供应、碳储量、水分产量和生境质量进行了评价，并确定了多生态系统供应的热点区域。此外，我们研究了鄂尔多斯市2000年，2010年和2020年的环境服务系统之间的约束效应，并使用空间权衡模型映射的环境服务系统的权衡和协同领域，从2000年到2010年和2010年到2020年。结果表明，鄂尔多斯市4种环境质量指数在研究期间均显著增加。多个生态系统供应热点区域面积也在增加，区域生态环境状况持续改善。ES之间的约束效应表明，随着CS的增加，其对WY和FS的约束效应先减小后增大，而对HQ的约束效应仅减小;随着WY的增加，其对HQ的约束效应先减小后增大，对FS的约束效应继续减小;随着FS的增加，其对HQ的约束效应继续增大。从生态系统权衡与协同面积的变化来看，鄂尔多斯市4对生态系统（CS-WY、CS-HQ、WY-HQ和FS-HQ）的正协同面积均有所增加。这些发现有助于为旱地生态系统的管理和优化奠定科学基础。
Dryland ecosystem services (ESs) have been severely harmed by global environmental changes and increased human activities. To improve ESs, it is necessary to understand how they interact in drylands. In this study, we selected Ordos dryland, which is situated in northern China, as the study area to assess its four key ESs—food supply (FS), carbon storage (CS), water yield (WY), and habitat quality (HQ)—and to identify the hotspots of multiple ES supply. Furthermore, we studied the constraint effects between ESs in Ordos in 2000, 2010, and 2020 and used a spatial trade-off model to map the trade-off and synergy areas of ESs from 2000 to 2010 and from 2010 to 2020. The results indicated that all four ESs in Ordos increased significantly over the study period. The hotspots for the supply of multiple ESs also increased in areal extent during this period, and the state of the regional ecological environment continued to improve. The constraint effect between ESs showed that as the CS increased, its constraint effect on WY and FS decreased and then increased, whereas its constraint effect on HQ only decreased; as the WY increased, its constraint effect on HQ decreased and then increased, and its constraint effect on FS continued to decrease; as the FS increased, its constraint effect on HQ continued to increase. From the change in the area of ESs trade-offs and synergies, there was an increase in the area of positive synergy for four pairs of ESs in Ordos, which were CS-WY, CS-HQ, WY-HQ, and FS-HQ. These findings help in establishing a scientific foundation for the management and optimization of ESs in drylands.