Soil nutrient availability determines the facilitative effects of cushion plants on other plant species at high elevations in the south-eastern Himalayas
Chen,Jianguo; Yang,Yang; Stoecklin,Juerg; Cavieres,Lohengrin A.; Peng,Deli; Li,Zhimin; Sun,Hang; Sun,H (reprint author),Univ Chinese Acad Sci,Kunming Inst Bot East Asia,Key Lab Plant Biodivers & Biogeog,Kunming,Yunnan,Peoples R China.; hsun@mail.kib.ac.cn
2015
Source PublicationPLANT ECOLOGY & DIVERSITY
Volume8Issue:2Pages:199-210
Abstract

Background: Cushions are the typical nurse species of high-elevation environments. However, few studies have explored the differences in facilitative power and environmental amelioration between nurse plants of different species that share a common cushion morphology. Aims: To compare the nurse effects of different alpine cushion plants and their mechanism. Methods: We compared the effects of two co-occurring cushion species, Potentilla articulata and Arenaria polytrichoides on species richness, Shannon-Wiener diversity and the evenness of vascular plant assemblages in the Himalayas. In addition, we compared the temperature and the soil nutrients within and outside the two cushion species. Results: The presence of either cushion species significantly increased the species richness and diversity in comparison with the areas outside the cushions; P. articulata cushions were associated with greater species richness than A. polytrichoides. Substrate temperatures were similar under the two species and in open areas, but nitrogen and potassium levels were higher under either of the two cushion species than they were outside. Soil phosphorus and potassium concentrations were significantly higher beneath P. articulata than beneath the A. polytrichoides cushions. Conclusions: Our results indicate that facilitation of local species richness by cushion plants contributes to the structure of the alpine plant community in the eastern Himalayas. The intensity of the nurse effect varies with the soil nutrient level beneath different benefactor species.

KeywordArenaria Polytrichoides Alpine Environment Himalaya Cushion Plant Potentilla Articulata Facilitation
Subject AreaPlant Sciences
DOI10.1080/17550874.2013.872206
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences
WOS IDWOS:000349789100001
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/20632
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Corresponding AuthorSun,H (reprint author),Univ Chinese Acad Sci,Kunming Inst Bot East Asia,Key Lab Plant Biodivers & Biogeog,Kunming,Yunnan,Peoples R China.; hsun@mail.kib.ac.cn
Recommended Citation
GB/T 7714
Chen,Jianguo,Yang,Yang,Stoecklin,Juerg,et al. Soil nutrient availability determines the facilitative effects of cushion plants on other plant species at high elevations in the south-eastern Himalayas[J]. PLANT ECOLOGY & DIVERSITY,2015,8(2):199-210.
APA Chen,Jianguo.,Yang,Yang.,Stoecklin,Juerg.,Cavieres,Lohengrin A..,Peng,Deli.,...&hsun@mail.kib.ac.cn.(2015).Soil nutrient availability determines the facilitative effects of cushion plants on other plant species at high elevations in the south-eastern Himalayas.PLANT ECOLOGY & DIVERSITY,8(2),199-210.
MLA Chen,Jianguo,et al."Soil nutrient availability determines the facilitative effects of cushion plants on other plant species at high elevations in the south-eastern Himalayas".PLANT ECOLOGY & DIVERSITY 8.2(2015):199-210.
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