Higher soil capacity of intercepting heavy rainfall in mixed stands than in pure stands in riparian forests

doi:10.1016/j.scitotenv.2018.12.171

	Higher soil capacity of intercepting heavy rainfall in mixed stands than in pure stands in riparian forests
	Zhang, Beibei ; Xu, Qing ; Gao, Deqiang ; Jiang, Chunwu 1; Liu, Futing 2,3; Jiang, Jing 4; Ma, Yingbin 5
	2019
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	658 页码:1514-1522
摘要	Changes in global precipitation patterns would make wet regions lore humid and extreme precipitation events occur frequently, followed by widespread flooding. Riparian forests are more capable of withstanding floods than inland forests because they are frequently exposed to short-term flooding events. Although many previous studies have investigated the soil water dynamics of terrestrial forests, little is known about how the soil water of riparian forests responds to different amounts of rainfall and which factors mainly regulate the soil water-holding capacity. Here, we employed stable hydrogen isotope to explore the contribution of different magnitudes of rainfall (7.9, 18.6 and 34.1 mm) to the soil water in two types of riparian forests (pure vs. mixed stand of Populus deltoides) in the middle-lower reaches of the Yangtze River, China. We further used structure equation modelling to determine the relative importance of soil properties and vegetation biomass in affecting the contribution of different magnitudes of rainfall to soil water. Our results revealed that there was no significant difference between these two stand types in the contributions of light and moderate rainfall to soil water, while the contribution of heavy rainfall to soil water (CHRSW) in mixed stand was significantly higher than that in pure stand (74.3% vs. 62.9%), suggesting that mixed stand soil has higher water-holding capacity than pure stand soil. Furthermore, soil properties were the best predictor affecting CHRSW, which explained 68% and 59% of the variation in the CHRSW on the 1st and 8th days after rainfall, respectively. Moreover, the root biomass could indirectly affect the CHRSW. Overall, mixed stand soil had a greater capacity in intercepting and storing rainwater than pure stand soil, implying that the mixed stand plantation, rather than the pure stand, should be recommended in riparian forest restoration projects that aim to improve their capacity for alleviating floods. (C) 2018 Elsevier B.V. All rights reserved.
关键词	Stable hydrogen isotope Riparian forests Different magnitudes of rainfall Soil water-holding capacity Soil properties Vegetation biomass
学科领域	Environmental Sciences
DOI	10.1016/j.scitotenv.2018.12.171
收录类别	SCI
语种	英语
WOS关键词	DIFFERENT VEGETATION TYPES ; LOESS PLATEAU ; SPATIAL VARIABILITY ; MOISTURE DYNAMICS ; WATER EROSION ; SCALE ; PATTERNS ; CARBON ; TRANSPIRATION ; THROUGHFALL
WOS研究方向	Environmental Sciences & Ecology
WOS记录号	WOS:000456175700140
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1879-1026
资助机构	Forestry Industry Funds for Scientific Research on Public Causes [201504423] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670720, 31870716]
作者邮箱	xuqing@caf.ac.cn
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19656
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Forestry, Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm State Forestry & G, Beijing 100091, Peoples R China 2.Anhui Acad Forestry, Hefei 230001, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Univ Calgary, Calgary, AB T2N 1N4, Canada 6.Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Beibei,Xu, Qing,Gao, Deqiang,et al. Higher soil capacity of intercepting heavy rainfall in mixed stands than in pure stands in riparian forests[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,658:1514-1522.
APA	Zhang, Beibei.,Xu, Qing.,Gao, Deqiang.,Jiang, Chunwu.,Liu, Futing.,...&Ma, Yingbin.(2019).Higher soil capacity of intercepting heavy rainfall in mixed stands than in pure stands in riparian forests.SCIENCE OF THE TOTAL ENVIRONMENT,658,1514-1522.
MLA	Zhang, Beibei,et al."Higher soil capacity of intercepting heavy rainfall in mixed stands than in pure stands in riparian forests".SCIENCE OF THE TOTAL ENVIRONMENT 658(2019):1514-1522.

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