干旱区生态环境知识资源中心(Arid): Phosphorus - The main limiting factor in riverine ecosystems in China

Arid

DOI	10.1016/j.scitotenv.2023.161613
	Phosphorus - The main limiting factor in riverine ecosystems in China
	Chen, Yan; Chen, Jie; Xia, Rui; Li, Wenpan; Zhang, Yuan; Zhang, Kai; Tong, Shanlin; Jia, Ruining; Hu, Qiang; Wang, Lu; Zhang, Xiaojiao
通讯作者	Xia, R
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	870
英文摘要	River receive substantial nutrient inputs, and serve as the main channel for nitrogen and phosphorus to enter the lake, their nutrient control is of great significance to the alleviation of lake eutrophication. While nutrient limitation affects the primary productivity of water ecosystems and the biodiversity of aquatic communities, identifying the limiting fac-tors in riverine ecosystems across China remains elusive. Here, we explore which nutrients have a stronger effect on nutritional balance and aquatic ecosystems in China's rivers based on the total nitrogen (TN) and total phosphorus (TP) observations from 1412 sampling sites in 2018. This study supports the following three main conclusions. Though the percentages of the sites with TN or TP exceeding the limits varied as per different mesotrophic targets, and TP (53.7 %) contributed more to nutrient enrichment than TN (46.3 %). In addition, the spatial distribution characteris-tics of river nutrients were high in the north (arid zone) and low in the south (humid zone) in China. According to four classification criteria of N:P ratio, 70.8 % of the sampling sites were attributed to phosphorus limiting, much higher than the sites with nitrogen limiting (4.1 %). TN and TP have a synergistic effect on river nutrients, while TP has a stronger regulation framework. Our results reveal that the nutrients in China's rivers are mainly phosphorus limiting, which implies that phosphorus-oriented best management practices are more likely to maintain the nutrient balance of rivers towards healthy aquatic ecosystems.Synopsis: Phosphorus is the key factor that affecting the stability and nutrient balance of riverine ecosystem.
英文关键词	Phosphorus limitation Riverine ecosystems China N P ratio
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000927377600001
WOS关键词	FRESH-WATER ; ECOLOGICAL STOICHIOMETRY ; NUTRIENT LIMITATION ; SURFACE WATERS ; TOTAL NITROGEN ; MAJOR RIVERS ; EUTROPHICATION ; RATIOS ; BASIN ; LAKES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398505
推荐引用方式 GB/T 7714	Chen, Yan,Chen, Jie,Xia, Rui,et al. Phosphorus - The main limiting factor in riverine ecosystems in China[J],2023,870.
APA	Chen, Yan.,Chen, Jie.,Xia, Rui.,Li, Wenpan.,Zhang, Yuan.,...&Zhang, Xiaojiao.(2023).Phosphorus - The main limiting factor in riverine ecosystems in China.SCIENCE OF THE TOTAL ENVIRONMENT,870.
MLA	Chen, Yan,et al."Phosphorus - The main limiting factor in riverine ecosystems in China".SCIENCE OF THE TOTAL ENVIRONMENT 870(2023).