Infiltration Patterns and Ecological Function of Outcrop Runoff in Epikarst Areas of Southern China

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 恢复生态学组

	Infiltration Patterns and Ecological Function of Outcrop Runoff in Epikarst Areas of Southern China
	Zhao, Zhimeng; Shen, Youxin; Shan, Zhijie; Yu, Yang; Zhao, Gaojuan; Shen, YX (reprint author), Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Kunming 650223, Yunnan, Peoples R China.
刊名	VADOSE ZONE JOURNAL
	2018
卷号	17 期号:1 页码:-
ISSN号	1539-1663
英文摘要	Rock outcrops (ROCs), a widespread surface component in a karst landscape, play a unique, hydrological role in the infiltration and redistribution of precipitation. This experiment aimed to explore water pathways of outcrop runoff and their ecological functions in epikarst by applying the dye tracer Brilliant Blue FCF on three sides of rocks-the uphill sides, the downhill sides, and the lateral sides-to simulate the outcrop runoff under a rainfall intensity of 100 mm h(-1), combined with a soil loss survey and soil property measurements. Our results showed that the outcrop runoff infiltration in three directions (i.e., lateral flow into the soil, vertical flow, and lateral spread at the soil-rock interface) differed greatly on the three sides of the ROCs. Deep but narrow vertical flow was the most common infiltration pattern on the uphill sides; long but shallow lateral flow toward downslope dominated outcrop runoff movement on the lateral sides. However, on the downhill sides, the vertical flow at the soil-rock interface was quantitatively equal to the lateral flow to soil. The difference in outcrop runoff infiltration at the three sides of ROCs may help to reveal the mechanisms of soil erosion as well as rock dissolution and biodiversity in a karst environment.
学科主题	Environmental Sciences & Ecology ; Agriculture ; Water Resources
URL标识	查看原文
语种	英语
公开日期	2018-09-05
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/11000]
专题	西双版纳热带植物园_恢复生态学组
通讯作者	Shen, YX (reprint author), Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Kunming 650223, Yunnan, Peoples R China.
推荐引用方式 GB/T 7714	Zhao, Zhimeng,Shen, Youxin,Shan, Zhijie,et al. Infiltration Patterns and Ecological Function of Outcrop Runoff in Epikarst Areas of Southern China[J]. VADOSE ZONE JOURNAL,2018,17(1):-.
APA	Zhao, Zhimeng,Shen, Youxin,Shan, Zhijie,Yu, Yang,Zhao, Gaojuan,&Shen, YX .(2018).Infiltration Patterns and Ecological Function of Outcrop Runoff in Epikarst Areas of Southern China.VADOSE ZONE JOURNAL,17(1),-.
MLA	Zhao, Zhimeng,et al."Infiltration Patterns and Ecological Function of Outcrop Runoff in Epikarst Areas of Southern China".VADOSE ZONE JOURNAL 17.1(2018):-.