气候变化领域集成服务门户(CCPortal): Phytoplankton community response to nutrients along lake salinity and altitude gradients on the Qinghai-Tibet Plateau

CCPortal

DOI	10.1016/j.ecolind.2021.107848
	Phytoplankton community response to nutrients along lake salinity and altitude gradients on the Qinghai-Tibet Plateau
	Li, Zhaoxi; Gao, Yang; Wang, Shuoyue; Lu, Yao; Sun, Kun; Jia, Junjie; Wang, Yafeng
通讯作者	Gao, Y (通讯作者)
发表日期	2021
ISSN	1470-160X
EISSN	1872-7034
卷号	128
英文摘要	The Qinghai-Tibet Plateau is the highest and largest plateau in the world and is composed of the world's greatest clustering of plateau lake systems. Given their extreme environmental conditions and simplistic trophic structures, certain phytoplankton species endemic to these lakes are extremely sensitive to changes in nutrients. Understanding the different response of phytoplankton communities to nutrients along different environmental gradients will help us devise appropriate ecological protection measures specific to individual lake conditions. This study investigated characteristics of phytoplankton communities and associated environmental factors in 20 alpine lakes, ranging in altitude from 2500 m to 4500 m. Results showed that salinity was the critical controlling factor in all phytoplankton communities, while also hindering phytoplankton abundance and biomass without changing the dominant species of algae. Results also showed that altitude was an important driving factor for variation in individual phytoplankton size, which was endemically smaller than phytoplankton size in lowaltitude lakes. Moreover, the phytoplankton community response to nutrients differed under different salinity gradients. In addition, water nitrogen (N) concentrations can alleviate salinity limitations on dominant phytoplankton species in saline lakes (salinity 35%o) while aggravating those in saltwater lakes (1%o < salinity < 35%o). It is imperative to improve our understanding of climate change and anthropogenic impacts on carbon (C) fixation capacities of plateau lake systems into the future.
关键词	TROPHIC STRUCTURE CLIMATE-CHANGE ZOOPLANKTON GROWTH DIVERSITY PHOTOSYNTHESIS TEMPERATURE MECHANISMS LIMITATION WATER
英文关键词	Qinghai-Tibet Plateau; Phytoplankton community; Salinity; Nutrients; Nitrogen
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:000663326300001
来源期刊	ECOLOGICAL INDICATORS
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/260163
推荐引用方式 GB/T 7714	Li, Zhaoxi,Gao, Yang,Wang, Shuoyue,et al. Phytoplankton community response to nutrients along lake salinity and altitude gradients on the Qinghai-Tibet Plateau[J]. 中国科学院青藏高原研究所,2021,128.
APA	Li, Zhaoxi.,Gao, Yang.,Wang, Shuoyue.,Lu, Yao.,Sun, Kun.,...&Wang, Yafeng.(2021).Phytoplankton community response to nutrients along lake salinity and altitude gradients on the Qinghai-Tibet Plateau.ECOLOGICAL INDICATORS,128.
MLA	Li, Zhaoxi,et al."Phytoplankton community response to nutrients along lake salinity and altitude gradients on the Qinghai-Tibet Plateau".ECOLOGICAL INDICATORS 128(2021).