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The contribution of understory and Compositae species to canopy storage capacity of semiarid grassland communities on the Loess Plateau

文献类型：期刊论文

作者Luo, Yang1; Zhou, Junjie2; Jian, Chunxia1; Chen, Yang1; Wang, Shaoyan1; Jin, Yuan1; Xu, Peidan2; Lei, Siyue2; Xiong, Peifeng3; Xu, Bingcheng1,4
刊名ECOHYDROLOGY
出版日期2022-09-23
页码14
ISSN号1936-0584
关键词community vertical structure interception process leaf area index species family storage capacity
DOI10.1002/eco.2482
通讯作者Xu, Bingcheng(bcxu@ms.iswc.ac.cn)
英文摘要Canopy rainfall interception reduces the effectiveness of limited rainfall resources in arid and semiarid regions. To clarify the effects of species composition and community vertical structure on canopy storage capacity, the artificial wetting and simulated rainfall methods were used to determine the species (C) and community (C-max) water storage, respectively, in three typical grassland communities on the semiarid Loess Plateau. Results indicated that water storage capacity of 31 grassland species ranged from 0.47 to 3.73 g g(-1), with an average of 1.60 g g(-1), and leaf storage capacity was significantly higher than the stem. Plant storage capacity was correlated with leaf traits (including leaf fresh weight, length and area). Canopy storage capacity of three grassland communities (Bothriochloa ischaemum, Artemisia gmelinii and Lespedeza davurica) ranged from 0.77 to 1.09 mm and were positively correlated with community leaf area index (LAI), coverage and leaf dry biomass. Leaf and stem water storage accounted for 57.6% and 42.4% of the total community, respectively. The water storage of Compositae, Gramineae, Leguminosae and other species accounted for 35.5%, 27.0%, 23.4% and 14.1%, respectively. The plants in the community with heights of >40, 20-40 and 0-20 cm contributed 5.8%, 30.3% and 63.9% of the water storage, respectively. The field observed canopy storage capacity was significantly higher than the estimated value through scaling up the individual storage data to the community, revealing complex community structure and species composition may increase actual rainfall interception. These results highlighted the species at 0-20 cm height was the key component affecting canopy water storage, and Compositae species may intercept more rainfall within the community, which imply that reducing the understory or Compositae species composition of grassland community would be helpful for increasing limited rainfall partitioning to soil in the drought area.
WOS关键词RAINFALL INTERCEPTION ; FOREST ; WATER ; MODEL ; LEAF ; PRECIPITATION ; VEGETATION ; CROWN
资助项目National Natural Science Foundation of China[41771553]
WOS研究方向Environmental Sciences & Ecology ; Water Resources
语种英语
出版者WILEY
WOS记录号WOS:000856990300001
资助机构National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/184794]  
专题中国科学院地理科学与资源研究所
通讯作者Xu, Bingcheng
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Xianyang 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, Coll Grassland Agr, Xianyang, Peoples R China
3.Anhui Agr Univ, Coll Resources & Environm, Hefei, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Xianyang, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Yang,Zhou, Junjie,Jian, Chunxia,et al. The contribution of understory and Compositae species to canopy storage capacity of semiarid grassland communities on the Loess Plateau[J]. ECOHYDROLOGY,2022:14.
APA Luo, Yang.,Zhou, Junjie.,Jian, Chunxia.,Chen, Yang.,Wang, Shaoyan.,...&Xu, Bingcheng.(2022).The contribution of understory and Compositae species to canopy storage capacity of semiarid grassland communities on the Loess Plateau.ECOHYDROLOGY,14.
MLA Luo, Yang,et al."The contribution of understory and Compositae species to canopy storage capacity of semiarid grassland communities on the Loess Plateau".ECOHYDROLOGY (2022):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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