干旱区生态环境知识资源中心(Arid): Response of the Desertification Landscape Patterns to Spatial-Temporal Changes of Land Use: A Case Study of Salaxi in South China Karst

Arid

DOI	10.3390/land12081557
	Response of the Desertification Landscape Patterns to Spatial-Temporal Changes of Land Use: A Case Study of Salaxi in South China Karst
	Shu, Tian; Xiong, Kangning; Zhang, Ning
通讯作者	Xiong, KN
来源期刊	LAND
EISSN	2073-445X
出版年	2023
卷号	12 期号:8
英文摘要	Land use change and karst desertification (KD) are interdependent. It is crucial to investigate the relationship between the KD landscape and spatial-temporal changes in land use for effective and sustainable KD management practices in karst plateau mountains. In this study, we analyzed the spatial and temporal characteristics, evolution in the pattern of land use, and KD in the Salaxi study area from 2009 to 2019, using the landscape pattern index and KD evolution trajectories, and discussed their response relationships. The results revealed the following: (1) In Salaxi, cultivated land predominantly transformed into shrubland, grassland, and woodland. The area of grassland, construction land, and garden land significantly increased, with respective increments of 379.85%, 157.14%, and 1847.81%. Conversely, the area of unutilized land decreased from 53.56 hm2 to 8.55 hm2, with the proportion declining from 0.62% to 0.10%. KD primarily occurs in shrubland, cultivated land, and woodland. (2) The areas of non-KD and potential KD have increased. There was a noticeable conversion of light and medium KD into potential KD, with areas of 1206.84 hm2 and 459.47 hm2, respectively. The KD landscape is dominated by stable and weakening ecological restoration. The comprehensive ranking of the incidence of soil KD in the study area is as follows: yellow soil > yellow-brown soil > coarse bone soil > limestone soil > purple soil. (3) The land use landscape index, the evenness index, and the fragmentation index in the demonstration area increased by 0.263, 0.120, and 0.534, respectively, while the KD landscape index, evenness index, and fragmentation index decreased by 0.360, 0.123, and 1.098, respectively. Additionally, the spreading index and aggregation index of the land use landscape decreased by 9.247 and 3.086, respectively, while the KD landscape's spreading index and aggregation index increased by 6.688 and 0.430, respectively. Both the sub-dimension indexes of the land use landscape and the KD landscape increased by 0.009. Overall, the landscape pattern of KD changes in response to land use variations and different land types exhibited varying responses to KD. The study of KD and land use landscape patterns can provide references for national strategies on KD control and the development of ecological industries.
英文关键词	landscape pattern index evolution trajectory land use karst desertification South China Karst
类型	Review
语种	英语
开放获取类型	Green Published, gold
收录类别	SSCI
WOS记录号	WOS:001057642000001
WOS关键词	ROCKY DESERTIFICATION ; EVOLUTION
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397682
推荐引用方式 GB/T 7714	Shu, Tian,Xiong, Kangning,Zhang, Ning. Response of the Desertification Landscape Patterns to Spatial-Temporal Changes of Land Use: A Case Study of Salaxi in South China Karst[J],2023,12(8).
APA	Shu, Tian,Xiong, Kangning,&Zhang, Ning.(2023).Response of the Desertification Landscape Patterns to Spatial-Temporal Changes of Land Use: A Case Study of Salaxi in South China Karst.LAND,12(8).
MLA	Shu, Tian,et al."Response of the Desertification Landscape Patterns to Spatial-Temporal Changes of Land Use: A Case Study of Salaxi in South China Karst".LAND 12.8(2023).