干旱区生态环境知识资源中心(Arid): Driving forest succession in karst areas of Chongqing municipality over the past decade

Arid

DOI	10.1186/s40663-020-0213-z
	Driving forest succession in karst areas of Chongqing municipality over the past decade
	Xiao, Qiang 1,2; Xiao, Yang 3; Liu, Yuan 1; Tao, Jianping 1
通讯作者	Tao, Jianping
来源期刊	FOREST ECOSYSTEMS
ISSN	2095-6355
EISSN	2197-5620
出版年	2020
卷号	7 期号:1
英文摘要	Background: Karst areas in southwestern China exhibit ecological degradation in the form of rocky desertification. Local governments launched large-scale afforestation and other ecological restoration programs to curb this trend. Soil thickness is a key limiting factor for vegetation restoration in Karst areas, but the relationship between ecological restoration and soil thickness remains unclear. Further, afforestation consumes large amounts of water, which impacts water supply in karst areas. In this study, we used GIS and statistical analyses to determine rocky desertification sensitivity and its driving factors in karst areas of Chongqing municipality over the past decade. Results: Soil thickness is one of the key factors that restrict ecological restoration of rocky desertification. From 2000 to 2010, rocky desertification sensitivity in karst areas was on the rise along with an increase in afforestation. Areas of high sensitivity were mainly distributed in Pengshui County, Wulong District, and Youyang County; Shizhu County had the lowest overall incidence of desertification. Spatial distribution of rocky desertification was significantly affected by rainfall and soil thickness. Regression analysis showed that the main factors controlling changes in rocky desertification in natural forest over time were precipitation which explained 23.73% of total variance, and soil thickness which explained 23.42% of total variance. Soil thickness and soil water content had a higher correlation coefficient (at 0.516) in natural forests than in planted forests. Conclusion: This study showed that increases in soil thickness in a karst area had a significant positive impact on the fragile ecological environment. This indicates that ecosystem restoration in karst areas will benefit from addressing soil thickness.
英文关键词	Rocky desertification GIS Karst areas Ecological restoration Ecological drivers
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000513943000001
WOS关键词	ABIES L. KARST. ; ROCKY DESERTIFICATION ; YELLOW-RIVER ; SOIL ; SPRINGS ; AQUIFER ; IMPACTS ; CONSERVATION ; FLOW ; AFFORESTATION
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314529
作者单位	1.Southwest Univ, Chongqing Key Lab Plant Ecol & Resources Res Thre, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Minist Educ,Sch Life Sci, Chongqing 400715, Peoples R China; 2.Chongqing Univ Arts & Sci, Chongqing 402160, Peoples R China; 3.Jishou Univ, Coll Biol & Environm Sci, Jishou 416000, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Qiang,Xiao, Yang,Liu, Yuan,et al. Driving forest succession in karst areas of Chongqing municipality over the past decade[J],2020,7(1).
APA	Xiao, Qiang,Xiao, Yang,Liu, Yuan,&Tao, Jianping.(2020).Driving forest succession in karst areas of Chongqing municipality over the past decade.FOREST ECOSYSTEMS,7(1).
MLA	Xiao, Qiang,et al."Driving forest succession in karst areas of Chongqing municipality over the past decade".FOREST ECOSYSTEMS 7.1(2020).