干旱区生态环境知识资源中心(Arid): Response of Preferential Soil Flow to Different Infiltration Rates and Vegetation Types in the Karst Region of Southwest China

Arid

DOI	10.3390/w12061778
	Response of Preferential Soil Flow to Different Infiltration Rates and Vegetation Types in the Karst Region of Southwest China
	Kan, Xiaoqing 1,2; Cheng, Jinhua 1,2; Hou, Fang 1,2
通讯作者	Cheng, Jinhua
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:6
英文摘要	The widespread preferential flow phenomenon has an important impact on the water resource allocation of vegetation restoration in karst regions. In this study, four kinds of water infiltration experiments were conducted on six kinds of vegetation types (Pinus yunnanensis Franch.var.tenuifoliaplantation forestlands,Eucalyptus robusta Smithplantation forestlands,Platycladus orientalis(L.)Francoptmxjjkmscplantation forestlands, secondary forestlands, scrublands, and natural grasslands) separately to evaluate the effect of vegetation restoration on preferential flow in karst regions. The distribution of soil water infiltration was visualized via Brilliant Blue staining (290 images of soil vertical section staining) and data were processed via structural equation model (SEM). Results showed that 15-35 mm water accumulation was beneficial to the visualization of preferential flow. The experimental statement of a higher matrix flow in grassland than in plantations made it possible to draw conclusions of economic importance. Therefore, undergrowth of vegetation coverage in plantation forestlands should be increased. Experimentally analyzing the water-vegetation-soil interaction, shows an increase in vegetation coverage inhibits the development of matrix flow, an increase in soil erodibility may inhibit the development of preferential flow, and an increase in soil clay content may promote the deepening of matrix flow depth. The artificial forest can improve the soil structure and can effectively restore the degree of soil fragmentation; vegetation can be restored reasonably to prevent desertification in karst regions. Therefore, identifying and analyzing the structure characteristics of the soil macropore network under the conditions of natural vegetation communities and artificial vegetation communities in karst-geologic settings is an urgent study, which can provide a reference for improving the restoration measures of artificial forests and sustainable forestry development in karst desertification areas.
英文关键词	preferential flow dye tracer plantation forestlands soil erodibility factor interaction of water-vegetation-soil
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
WOS记录号	WOS:000549445000001
WOS关键词	UNDISTURBED SOIL ; IMAGE-ANALYSIS ; WATER ; SYSTEMS ; MACROPORES ; TRANSPORT ; RUNOFF ; HYDROPEDOLOGY ; SUCCESSION ; SURFACE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319823
作者单位	1.Beijing Forestry Univ, Coll Soil & Water Conservat, 35 Qinghua,East Rd, Beijing 100083, Peoples R China; 2.Beijing Forestry Univ, Sch Soil & Water Conservat, Jinyun Forest Ecosyst Stn, 35 Qinghua East Rd, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Kan, Xiaoqing,Cheng, Jinhua,Hou, Fang. Response of Preferential Soil Flow to Different Infiltration Rates and Vegetation Types in the Karst Region of Southwest China[J]. 北京林业大学,2020,12(6).
APA	Kan, Xiaoqing,Cheng, Jinhua,&Hou, Fang.(2020).Response of Preferential Soil Flow to Different Infiltration Rates and Vegetation Types in the Karst Region of Southwest China.WATER,12(6).
MLA	Kan, Xiaoqing,et al."Response of Preferential Soil Flow to Different Infiltration Rates and Vegetation Types in the Karst Region of Southwest China".WATER 12.6(2020).