Multivariate relationships between snowmelt and plant distributions in the high Arctic tundra

We investigated multivariate relationships among snowmelt, soil physicochemical properties and the distribution patterns of Arctic tundra vegetation. Seven dominant species were placed in three groups (Veg-1, 2, 3) based on niche overlap (Pianka's Index) and ordination method, and a partial lea...

Full description

Bibliographic Details
Published in:Journal of Plant Biology
Main Authors: 이은주, Park, Jeong Soo, Son, Deokjoo, Lee, Yoo Kyung, Yun, Jong Hak, Lee, Eun Ju
Format: Article in Journal/Newspaper
Language:unknown
English
Published: 한국식물학회 2019
Subjects:
SPECIES RICHNESS
LONG-TERM
VEGETATION
RESPONSES
COVER
AVAILABILITY
BRYOPHYTES
DIVERSITY
ABUNDANCE
PATTERNS
Arctic tundra
Climate change
Path modeling
Snowmelt
Soil properties
Vascular plants
Luzula confusa
Salix polaris
Saxifraga oppositifolia
Silene acaulis
Tundra
Online Access:https://hdl.handle.net/10371/148774
https://doi.org/10.1007/s12374-017-0361-z
Description
Summary:We investigated multivariate relationships among snowmelt, soil physicochemical properties and the distribution patterns of Arctic tundra vegetation. Seven dominant species were placed in three groups (Veg-1, 2, 3) based on niche overlap (Pianka's Index) and ordination method, and a partial least squares path model was applied to estimate complex multivariate relationships of four latent variables on the abundance and richness of plant species. The abundance of Veg-1 (Luzula confusa and Salix polaris) was positively correlated with early snowmelt time, high soil nutrients and dense moss cover, but the abundance of Veg-2 (Saxifraga oppositifolia, Bistorta vivipara and Silene acaulis) was negatively correlated with these three variables. Plant richness was positively associated with early snowmelt and hydrological properties. Our results indicate that the duration of the snowpack can directly influence soil chemical properties and plant distribution. Furthermore, plant species richness was significantly affected by snow melt time in addition to soil moisture and moss cover. We predict that L. confusa and S. polaris may increase in abundance in response to early snowmelt and increased soil moisture-nutrient availability, which may be facilitated by climate change. Other forb species in dry and infertile soil may decrease in abundance in response to climate change, due to increasingly unfavourable environmental conditions and competition with mosses. OAIID:RECH_ACHV_DSTSH_NO:T201800142 RECH_ACHV_FG:RR00200001 ADJUST_YN: EMP_ID:A003593 CITE_RATE:1.459 DEPT_NM:생명과학부 EMAIL:ejlee@snu.ac.kr SCOPUS_YN:Y N 1

Similar Items