Inter- and intra-specific variation in stemflow for evergreen species and deciduous tree species in a subtropical forest

doi:10.1016/j.jhydrol.2016.03.028

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Inter- and intra-specific variation in stemflow for evergreen species and deciduous tree species in a subtropical forest
	Su, Lei 3; Xu, Wenting ; Zhao, Changming ; Xie, Zongqiang ; Ju, Hua 2
刊名	JOURNAL OF HYDROLOGY
	2016
卷号	537
关键词	Subtropical zonal vegetation Precipitation distribution Stemflow Funneling ratio Forest hydrology
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2016.03.028
文献子类	Article
英文摘要	Quantification of stemflow is necessary for the assessment of forest ecosystem hydrological effects. Nevertheless, variation of stemflow among plant functional groups is currently not well understood. Stemflow production of co-occurring evergreen broadleaved trees (Cyclobalanopsis multinervis and Cyclobalanopsis oxyodon) and deciduous broadleaved trees (Fagus engleriana and Quercus serrata var. brevipetiolata) was quantified through field observations in a mixed evergreen and deciduous broadleaved forest. The research results revealed that stemflow increased linearly with increasing rainfall magnitude, with precipitation depths of 6.9, 7.2, 10.0 and 14.8 mm required for the initiation of stemflow for C multinervis, C oxyodon, F. engleriana and Q. serrata, respectively. Stemflow percentage and funneling ratio (FR) increased with increasing rainfall in a logarithmic fashion. Stemflow percentage and FR tended to grow rapidly with increasing rainfall magnitude up to a rainfall threshold of 50 mm, above which, further rainfall increases brought about only small increases. For C multinervis, C oxyodon, F. engleriana and Q serrata, FR averaged 19.8, 14.8, 8.9 and 2.8, respectively. The stemflow generating rainfall thresholds for evergreen species were smaller than for deciduous species. Furthermore, stemflow percentage and FR of the former was greater than the latter. For both evergreen species and deciduous species, overall funneling ratio (FRs) decreased with increasing basal area. We concluded that: (1) although stemflow partitioning represented a fairly low percentage of gross rainfall in mixed evergreen and deciduous broadleaved forests, it was capable of providing substantial amount of rainwater to tree boles; (2) the evergreen species were more likely to generate stemflow than deciduous species, and directed more intercepted rainwater to the root zone; (3) small trees were more productive in funneling stemflow than larger trees, which may provide a favorable condition for the survival and growth of small trees when competing with larger trees. (C) 2016 Elsevier B.V. All rights reserved.
学科主题	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
电子版国际标准刊号	1879-2707
出版地	AMSTERDAM
WOS关键词	MODELING RAINFALL INTERCEPTION ; EXOTIC PINE PLANTATION ; SOIL-WATER ; SPATIAL VARIABILITY ; EVENT CHARACTERISTICS ; NUTRIENT FLUXES ; THROUGHFALL ; CANOPY ; SHRUBS ; FLOW
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000376212200002
资助机构	Special Fund for Public Service - Ministry of Environmental Protection of the People's Republic of China [201309039] ; Terrestrial Plant Key Station of Ecological and Environmental Monitoring System of the Three Gorges Project [JJ2015-027]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24530]
专题	植被与环境变化国家重点实验室
作者单位	1.Inner Mongolia Agr Univ, Coll Forestry, Hohhot 010019, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Su, Lei,Xu, Wenting,Zhao, Changming,et al. Inter- and intra-specific variation in stemflow for evergreen species and deciduous tree species in a subtropical forest[J]. JOURNAL OF HYDROLOGY,2016,537.
APA	Su, Lei,Xu, Wenting,Zhao, Changming,Xie, Zongqiang,&Ju, Hua.(2016).Inter- and intra-specific variation in stemflow for evergreen species and deciduous tree species in a subtropical forest.JOURNAL OF HYDROLOGY,537.
MLA	Su, Lei,et al."Inter- and intra-specific variation in stemflow for evergreen species and deciduous tree species in a subtropical forest".JOURNAL OF HYDROLOGY 537(2016).