Regional response of grassland productivity to changing environment conditions influenced by limiting factors

doi:10.1371/journal.pone.0240238

	Regional response of grassland productivity to changing environment conditions influenced by limiting factors
	Li, Qiuyue 1; Hou, Jihua 1; Yan, Pu 2,3; Xu, Li 2; Chen, Zhi 2; Yang, Hao 2; He, Nianpeng 2,3,4
刊名	PLOS ONE
	2020-10-16
卷号	15 期号:10 页码:15
ISSN号	1932-6203
DOI	10.1371/journal.pone.0240238
通讯作者	Hou, Jihua(houjihua@bjfu.edu.cn) ; He, Nianpeng(henp@igsnrr.ac.cn)
英文摘要	Regional differences and regulatory mechanisms of vegetation productivity response to changing environmental conditions constitute a core issue in macroecological researches. To verify the main limiting factors of different macrosystems [temperature-limited Tibetan Plateau (TP), precipitation-limited Mongolian Plateau (MP), and nutrient-limited Loess Plateau (LP)], we conducted a comparative survey of the east-west grassland transects on the three plateaus and explored the factors limiting regional productivity and their underlying mechanisms. The results showed that aboveground net primary productivity (ANPP) of LP (109.10 +/- 16.76 g m(-2)yr(-1)) was significantly higher than that of MP (66.71 +/- 11.11 g m(-2)yr(-1)) and TP (57.02 +/- 10.59 g m(-2)yr(-1)). The response rate of ANPP with environmental changes was different among different plateaus, being closely related to the main limiting factors. On MP, this was precipitation, on LP it was temperature and nutrients, and on TP, it was non-specific, reflecting restriction by the extremely low temperature. After autocorrelation screening of environmental factors, different regions exhibited different productivity response mechanisms. MP was mainly influenced by temperature and precipitation, LP was influenced by temperature and nutrient, and TP was influenced by nutrient, reflecting the modifying effect of the main limiting factors. The effect of each regional environment on ANPP was 72.56% on average and only 27.18% after simple regional integration. The regional model could optimize the simulation error of the integrated model, and the relative deviations in MP, LP, and TP were reduced by 31.76%, 17.22%, and 2.23%, respectively. These findings indicate that the grasslands on the three plateaus may have different or even the opposite mechanisms to control productivity.
资助项目	National Natural Science Foundation of China[31961143022] ; National Natural Science Foundation of China[31870437] ; National Key R&D Program of China[2017YFA0604803]
WOS关键词	NET PRIMARY PRODUCTIVITY ; CLIMATE-CHANGE ; LOESS PLATEAU ; MONGOLIAN PLATEAU ; PLANT DIVERSITY ; COLD-TEMPERATE ; ALPINE MEADOW ; VEGETATION ; PRECIPITATION ; ASSOCIATION
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000585918300003
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156609]
专题	中国科学院地理科学与资源研究所
通讯作者	Hou, Jihua; He, Nianpeng
作者单位	1.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 4.Northeast Normal Univ, Key Lab Vegetat Ecol, Minist Educ, Changchun, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiuyue,Hou, Jihua,Yan, Pu,et al. Regional response of grassland productivity to changing environment conditions influenced by limiting factors[J]. PLOS ONE,2020,15(10):15.
APA	Li, Qiuyue.,Hou, Jihua.,Yan, Pu.,Xu, Li.,Chen, Zhi.,...&He, Nianpeng.(2020).Regional response of grassland productivity to changing environment conditions influenced by limiting factors.PLOS ONE,15(10),15.
MLA	Li, Qiuyue,et al."Regional response of grassland productivity to changing environment conditions influenced by limiting factors".PLOS ONE 15.10(2020):15.