气候变化领域集成服务门户(CCPortal): INTERACTIVE EFFECTS OF NITROGEN AND WATER ADDITION ON COMPETITIVE HIERARCHIES BETWEEN EARLY- AND LATE- SUCCESSIONAL PLANT SPECIES

CCPortal

DOI	10.3161/104.062.0411
	INTERACTIVE EFFECTS OF NITROGEN AND WATER ADDITION ON COMPETITIVE HIERARCHIES BETWEEN EARLY- AND LATE- SUCCESSIONAL PLANT SPECIES
	Jiang, Lili; Lan, Zhichun; Liu, Guifeng; Kardol, Paul
通讯作者	Jiang, LL (通讯作者)
发表日期	2014
ISSN	1505-2249
起始页码	665
结束页码	678
卷号	62 期号:4
英文摘要	Increased nitrogen (N) and water availability, resulting from global changes or ecosystem management, were predicted to promote plant productivity and change community composition through shifts in competition hierarchies. So far, however, it still remains unclear how competitive interactions respond to N and water additions, which will be important to understand how plant community composition changes. To test plant competition ability in different successional stages under N and water addition treatments, a pot experiment under field conditions was performed. Six dominant plant species, three early-successional species, Artemisia lavandulaefolia, Artemisia capillaris, and Pennisetum centrasiaticum versus three late-successional species, Stipa krylovii, Leymus chinensis, and Artemisia frigida, were grown in monocultures and in two-species mixtures under factorial combinations of N and water addition treatments. We found that (1) there were interactive effects of N addition, water addition and interspecific competition on plant biomass; (2) For a given species, competitive abilities were correlated with biomass difference of neighboring species; (3) N and water additions interactively increased competition intensity and shifted species competitive hierarchies; (4) Late-successional species had stronger competitive abilities in the N addition treatment, whereas early-successional species had stronger competitive abilities after water addition or N + water addition. Our results show that N and water additions increased the intensity and impact of interspecific competition on plant growth, which has great implications for community structures. Since interspecific differences in competitive abilities were not well explained by species biomass, species identity, such as plant functional traits, should be included to predict the impact of increased N and water availability on plant communities and ecosystem functions.
关键词	ECOLOGICAL CONSEQUENCES ECOSYSTEM PRECIPITATION MECHANISMS GRASSLAND DIVERSITY RESPONSES TRAITS SILVICULTURE COMMUNITIES
英文关键词	nitrogen deposition; competitive response; competitive effect; competitive hierarchies; plant community succession; resource ratio hypothesis
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000346950000005
来源期刊	POLISH JOURNAL OF ECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258353
推荐引用方式 GB/T 7714	Jiang, Lili,Lan, Zhichun,Liu, Guifeng,et al. INTERACTIVE EFFECTS OF NITROGEN AND WATER ADDITION ON COMPETITIVE HIERARCHIES BETWEEN EARLY- AND LATE- SUCCESSIONAL PLANT SPECIES[J]. 中国科学院青藏高原研究所,2014,62(4).
APA	Jiang, Lili,Lan, Zhichun,Liu, Guifeng,&Kardol, Paul.(2014).INTERACTIVE EFFECTS OF NITROGEN AND WATER ADDITION ON COMPETITIVE HIERARCHIES BETWEEN EARLY- AND LATE- SUCCESSIONAL PLANT SPECIES.POLISH JOURNAL OF ECOLOGY,62(4).
MLA	Jiang, Lili,et al."INTERACTIVE EFFECTS OF NITROGEN AND WATER ADDITION ON COMPETITIVE HIERARCHIES BETWEEN EARLY- AND LATE- SUCCESSIONAL PLANT SPECIES".POLISH JOURNAL OF ECOLOGY 62.4(2014).