干旱区生态环境知识资源中心(Arid): Responses and drivers of leaf nutrients and resorption to nitrogen enrichment across northern China's grasslands: A meta-analysis

Arid

DOI	10.1016/j.catena.2020.105110
	Responses and drivers of leaf nutrients and resorption to nitrogen enrichment across northern China's grasslands: A meta-analysis
	Su, Yuan; Ma, Xiaofei; Gong, Yanming; Li, Kaihui; Han, Wenxuan; Liu, Xuejun
通讯作者	Li, KH (corresponding author), Chinese Acad Sci, Key Lab Biogeog & Bioresource Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China. ; Liu, XJ (corresponding author), China Agr Univ, Coll Resources & Environm Sci, Yuanmingyuan West Rd 2, Beijing 100193, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	199
英文摘要	A meta-analysis was preformed to reveal how environmental and experimental factors alter the effects of N enrichment on the concentrations and stoichiometry of N and P in both mature and senesced foliage and nutrient resorption, with published studies from Chinese grasslands. N enrichment, when averaged across the studies, significantly increased the mature leaf N, P and N:P by 27.89%, 2.55% and 20.85%, respectively. The N, P and N: P ratio for senesced foliage under N enrichment increased by 41.35%, 3.28% and 20.11%, respectively, but N enrichment significantly decreased the leaf N resorption efficiency (NRE) and P resorption efficiency (PRE) by 6.85% and 3.41%, respectively. They were significantly controlled by the rates of addition of N, humidity index and the ratio of N addition rates to ambient N deposition, which suggested that ambient N deposition can indirectly influence plant internal nutrient cycling in this system. The effects of N enrichment on the N, P, stoichiometry and nutrient resorption in plants varied greatly among the types of grassland. In addition, the rates of N addition, forms of N application, experimental duration and application frequency of N had different effects on the leaf nutrient status. Specifically, the response of a critical threshold value of leaf P to N addition is 50-100 kg N ha(-1) year(-1) at which range with a shift from negative to positive impacts. Moreover, the addition of N significantly changed N and P coupling in mature leaves but not of senesced leaves, which were primarily regulated by N enrichment impacts on nutrient resorption. Our findings suggest that N enrichment significantly affected the status of leaf nutrients and then altered plant internal nutrient cycling across the grasslands of northern China.
英文关键词	Ambient N deposition Grassland Meta-analysis N enrichment N:P stoichiometry Nutrient resorption
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000608022600025
WOS关键词	PLANT-GROWTH ; PHOSPHORUS STOICHIOMETRY ; LITTER DECOMPOSITION ; TEMPERATE GRASSLAND ; TERRESTRIAL PLANTS ; FOLIAR NITROGEN ; INNER-MONGOLIA ; DEPOSITION ; ADDITIONS ; DESERT
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	中国科学院新疆生态与地理研究所 ; 中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347773
作者单位	[Su, Yuan; Ma, Xiaofei; Gong, Yanming; Li, Kaihui; Han, Wenxuan; Liu, Xuejun] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Su, Yuan; Gong, Yanming; Li, Kaihui] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Bayinbuluk Grassland Ecosyst Res Stn, Bayinbuluk 841314, Peoples R China; [Su, Yuan; Ma, Xiaofei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Ma, Xiaofei; Gong, Yanming; Li, Kaihui; Han, Wenxuan] Chinese Acad Sci Res, Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China; [Liu, Xuejun] China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Su, Yuan,Ma, Xiaofei,Gong, Yanming,et al. Responses and drivers of leaf nutrients and resorption to nitrogen enrichment across northern China's grasslands: A meta-analysis[J]. 中国科学院新疆生态与地理研究所, 中国农业大学,2021,199.
APA	Su, Yuan,Ma, Xiaofei,Gong, Yanming,Li, Kaihui,Han, Wenxuan,&Liu, Xuejun.(2021).Responses and drivers of leaf nutrients and resorption to nitrogen enrichment across northern China's grasslands: A meta-analysis.CATENA,199.
MLA	Su, Yuan,et al."Responses and drivers of leaf nutrients and resorption to nitrogen enrichment across northern China's grasslands: A meta-analysis".CATENA 199(2021).