4.7 Article

Leaf Functional Traits in Relation to Species Composition in an Arctic-Alpine Tundra Grassland

期刊

PLANTS-BASEL
卷 12, 期 5, 页码 -

出版社

MDPI
DOI: 10.3390/plants12051001

关键词

canopy; flavonoids; grasslands; orthophotos; phenolic compounds; remote sensing; secondary metabolism; SLA; species cover analysis; tundra

向作者/读者索取更多资源

This study used the relict arctic-alpine tundra as a natural laboratory to investigate the impacts of climate change and anthropogenic disturbance on tundra vegetation. The Nardus stricta-dominated tundra grasslands in the Krkonose Mountains have shown changes in species dynamics over the past few decades. Using orthophotos, changes in the cover of four competing grasses (Nardus stricta, Calamagrostis villosa, Molinia caerulea, and Deschampsia cespitosa) were successfully detected.
The relict arctic-alpine tundra provides a natural laboratory to study the potential impacts of climate change and anthropogenic disturbance on tundra vegetation. The Nardus stricta-dominated relict tundra grasslands in the Krkonose Mountains have experienced shifting species dynamics over the past few decades. Changes in species cover of the four competing grasses-Nardus stricta, Calamagrostis villosa, Molinia caerulea, and Deschampsia cespitosa-were successfully detected using orthophotos. Leaf functional traits (anatomy/morphology, element accumulation, leaf pigments, and phenolic compound profiles), were examined in combination with in situ chlorophyll fluorescence in order to shed light on their respective spatial expansions and retreats. Our results suggest a diverse phenolic profile in combination with early leaf expansion and pigment accumulation has aided the expansion of C. villosa, while microhabitats may drive the expansion and decline of D. cespitosa in different areas of the grassland. N. stricta-the dominant species-is retreating, while M. caerulea did not demonstrate significant changes in territory between 2012 and 2018. We propose that the seasonal dynamics of pigment accumulation and canopy formation are important factors when assessing potential spreader species and recommend that phenology be taken into account when monitoring grass species using remote sensing.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据