干旱区生态环境知识资源中心(Arid): Spatiotemporal evolution of rocky desertification and soil erosion in karst area of Chongqing and its driving factors

Arid

DOI	10.1016/j.catena.2024.108108
	Spatiotemporal evolution of rocky desertification and soil erosion in karst area of Chongqing and its driving factors
	Chen, Shidie; Wei, Xingping; Cai, Yunli; Li, Hui; Li, Liangxin; Pu, Junbing
通讯作者	Wei, XP ; Pu, JB
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2024
卷号	242
英文摘要	The karst area is a prototypical ecologically fragile region, characterized by severe soil erosion and rocky desertification, which hinders sustainable development in these areas. To ensure effective and informed management, it is crucial to comprehensively analyze the long-term series of soil erosion and rocky desertification in terms of their changing characteristics and underlying driving factors. In this study, the Sen slope estimation and Mann-Kendall test were used to carefully examine the changes within the karst region of Chongqing, China, during the period of 2000-2020. Our findings revealed a deterioration followed by an improvement in the degree of rocky desertification in the study area. However, soil erosion exhibited a fluctuating downward trend due to the effective control measures implemented to address both rocky desertification and soil erosion. The driving factors behind these mentioned changes were studied using the Geographical Weighted Regression and Geodetector. Our results highlighted those natural, anthropogenic, and comprehensive factors all influenced the changes during the study period. Notably, each driving factor exhibited significant spatial heterogeneity. The combination of surface exposure rate and vegetation coverage emerged as the primary driver of rocky desertification evolution, while the combination of rainfall and vegetation coverage played a pivotal role in soil erosion evolution. Considering the geological characteristics of karst areas, our study revealed that the degree of rocky desertification and soil erosion in semi-karst areas was comparatively lower than that observed in pure-karst areas. However, in nearly 20 years of ecological restoration, the effectiveness of improvements in semi-karst areas is not as significant as in pure-karst areas. Therefore, more attention should be given to these areas in the future. The implications of this study are valuable for developing comprehensive strategies to combat rocky desertification and soil erosion customized to local conditions.
英文关键词	Rocky desertification Soil erosion Temporal and spatial heterogeneity Semi-karst Pure-karst
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001291615900001
WOS关键词	LAND-USE ; QUANTITATIVE ATTRIBUTION ; CLIMATE-CHANGE ; YELLOW-RIVER ; CARBON ; RUNOFF ; CHINA ; SLOPE ; DEGRADATION ; CHANGSHUN
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403158
推荐引用方式 GB/T 7714	Chen, Shidie,Wei, Xingping,Cai, Yunli,et al. Spatiotemporal evolution of rocky desertification and soil erosion in karst area of Chongqing and its driving factors[J],2024,242.
APA	Chen, Shidie,Wei, Xingping,Cai, Yunli,Li, Hui,Li, Liangxin,&Pu, Junbing.(2024).Spatiotemporal evolution of rocky desertification and soil erosion in karst area of Chongqing and its driving factors.CATENA,242.
MLA	Chen, Shidie,et al."Spatiotemporal evolution of rocky desertification and soil erosion in karst area of Chongqing and its driving factors".CATENA 242(2024).