Modelling tree-grass coexistence in water-limited ecosystems

doi:10.1007/s11104-016-3077-9

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

	Modelling tree-grass coexistence in water-limited ecosystems
	Ying, Zhixia 7; Liao, Jinbao 6; Liu, Yongjie 5; Wang, Shichang 4; Lu, Hui 3; Ma, Liang 2,3; Chen, Dongdong 3; Li, Zhenqing 3
刊名	ECOLOGICAL MODELLING
	2017
卷号	360 页码:387-398
关键词	Dynamic model Niche separation Periodic fluctuation Walter's two layer hypothesis
ISSN号	0304-3800
DOI	10.1007/s11104-016-3077-9
文献子类	Article
英文摘要	Tree-grass coexistence is commonly observed in arid and semi-arid ecosystems. Many of these ecosystems are undergoing a shift from grassland to tree dominance or the opposite. Therefore, exploring the mechanism of tree-grass coexistence and studying how ecosystems respond to environmental change are critical to understanding such shift. We construct a tree-grass-water model by considering the Walter's two layer hypothesis, i.e., the grass species only access to the shallow soil water, while the tree can uptake both the shallow and deep soil water. Results show that the tree-grass coexistence region increases with increasing their niche separation. Hence, the vertical niche separation between trees and grass with respect to limiting water resources might be one of mechanisms for tree-grass coexistence. Besides, both tree and grass display positive responses to precipitation, but surprisingly, there exists a catastrophe that the mean vegetation density first rapidly increases, but then quickly decreases as precipitation increases in the tree-grass-water model with infiltration feedback. Most likely, this catastrophe is due primarily to the periodical fluctuation of vegetation density and water caused by its intrinsic infiltration feedback. Overall, our study provides new insights into the dynamics of tree-grass in arid and semi-arid ecosystems. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Agriculture ; Plant Sciences
电子版国际标准刊号	1872-7026
出版地	AMSTERDAM
WOS关键词	NORTH-AMERICAN GRASSLANDS ; WOODY PLANT ENCROACHMENT ; SHRUB ENCROACHMENT ; SAVANNA ECOSYSTEMS ; AFRICAN SAVANNAS ; GRAZING SYSTEMS ; VEGETATION ; DYNAMICS ; PRECIPITATION ; STABILITY
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000399020200025
资助机构	National Key Basic Research Program of ChinaNational Basic Research Program of China [2013CB429905] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41571505] ; Science and Technology Project of Jiangxi Provincial Water Resources Department [KT201505] ; China Scholarship Council (CSC)China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/22146]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Zool, Key Lab Anim Ecol & Conservat Biol, Beijing, Peoples R China 4.Univ Antwerp, Dept Biol, Ctr Excellence Plants & Ecosyst, B-2610 Antwerp, Belgium 5.Jiangxi Normal Univ, Minist Educ, Key Lab Poyang Lake Wetland & Watershed Res, Nanchang 330022, Jiangxi, Peoples R China 6.Nanchang Univ, Coll Life Sci, Poyang Lake Key Lab Environm & Resource Utilizat, Minist Educ, Nanchang 330031, Jiangxi, Peoples R China 7.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	Ying, Zhixia,Liao, Jinbao,Liu, Yongjie,et al. Modelling tree-grass coexistence in water-limited ecosystems[J]. ECOLOGICAL MODELLING,2017,360:387-398.
APA	Ying, Zhixia.,Liao, Jinbao.,Liu, Yongjie.,Wang, Shichang.,Lu, Hui.,...&Li, Zhenqing.(2017).Modelling tree-grass coexistence in water-limited ecosystems.ECOLOGICAL MODELLING,360,387-398.
MLA	Ying, Zhixia,et al."Modelling tree-grass coexistence in water-limited ecosystems".ECOLOGICAL MODELLING 360(2017):387-398.