植被恢复对径流和土壤侵蚀的气候驱动效应的全球阈值

IF 5.9 1区地球科学 Q1 ENGINEERING, CIVIL

Journal of Hydrology Pub Date : 2024-11-17 DOI:10.1016/j.jhydrol.2024.132374

Xi Lin , Shengwei Zhang , Xingyu Zhao , Ruishen Li , Shuai Wang , Lin Yang , Xinghui Chen

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引用次数: 0

摘要

径流的产生与地形、气候和植被密切相关。然而，目前尚未对全球气候变化下不同植被恢复对径流的综合影响进行定量评估。当气候超过特定阈值时，植被恢复对径流的抑制作用可能会减弱。在此，我们收集了 771 个观测数据进行荟萃分析，并使用分段回归法确定植被恢复对径流和土壤侵蚀的气候相关变量的全球阈值响应。我们发现，当 MAP（年平均降水量）分别超过约 331 毫米和 540 毫米的阈值时，植被恢复在抑制土壤侵蚀和径流方面的效果就会增加。此外，当降雨强度超过 48 毫米/小时的临界值时，植被恢复对水土流失的控制效果也会增加。综合分析表明，在北温带，草地植被重建在减少径流和土壤侵蚀方面更为成功。温度和降水直接或间接地影响灌木林地径流减少的效果，且其关系随温度和降水的变化而变化。我们的研究结果有助于指导地区政府和决策者制定和实施合理的植被恢复措施，促进未来水资源的可持续管理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Global thresholds for the climate-driven effects of vegetation restoration on runoff and soil erosion

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Global thresholds for the climate-driven effects of vegetation restoration on runoff and soil erosion

Runoff generation is intimately related to topography, climate, and vegetation. However, the combined impacts of different vegetation restorations on runoff under global climate change have not been quantitatively assessed. When climate exceeds specific thresholds, the inhibitory effect of vegetation restoration on runoff may diminish. Here, we collected 771 observations for meta-analysis and used segmented regression to determine the global threshold response of vegetation restoration for climate-related variables on runoff and soil erosion. We found the effect of vegetation restoration in inhibiting soil erosion and runoff increased when MAP (mean annual precipitation) exceeded the thresholds of about 331 mm and 540 mm, respectively. Furthermore, at rainfall intensity above the threshold of 48 mm/h, the effect of vegetation restoration on erosion control increases. Comprehensive analysis indicates that grassland revegetation is more successful in decreasing of runoff and soil erosion in the North Temperate Zone. Temperature and precipitation directly or indirectly influenced the effects of shrubland runoff reduction, and the relationship varied with changes in temperature and precipitation. Our findings contribute to guiding regional governments and decision makers in developing and implementing rational vegetation restoration measures for sustainable water resource management in the future.

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来源期刊

Journal of Hydrology 地学-地球科学综合

CiteScore

11.00

自引率

12.50%

发文量

1309

审稿时长

7.5 months

期刊介绍： The Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology and hydrogeology. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, hydraulics, agrohydrology, geomorphology, soil science, instrumentation and remote sensing, civil and environmental engineering are included. Social science perspectives on hydrological problems such as resource and ecological economics, environmental sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site.