Effects of nitrogen addition on plant-soil micronutrients vary with nitrogen form and mowing management in a meadow steppe

doi:10.1016/j.envpol.2021.117969

	Effects of nitrogen addition on plant-soil micronutrients vary with nitrogen form and mowing management in a meadow steppe
	Liu, Heyong ; Wang, Ruzhen ; Lu, Xiao-Tao ; Cai, Jiangping ; Feng, Xue ; Yang, Guojiao ; Li, Hui ; Zhang, Yuge 1; Han, Xingguo2 ; Jiang, Yong
	2021
发表期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
卷号	289
摘要	Nitrogen (N) addition and mowing can significantly influence micronutrient cycling in grassland ecosystems. It remains largely unknown about how different forms of added N affect micronutrient status in plant-soil systems. We examined the effects of different N compounds of (NH4)(2)SO4, NH4NO3, and urea with and without mowing on micronutrient Fe, Mn, Cu, and Zn in soil-plant systems in a meadow steppe. The results showed that (NH4)(2)SO4 addition had a stronger negative effect on soil pH compared with NH4NO3 and urea, resulting in higher increases in soil available Fe and Mn herein. Nitrogen addition decreased plant community-level biomass weighted (hereafter referred to as community-level) Fe concentration but increased Mn concentration, with a greater effect under (NH4)(2)SO4 addition. Community-level Cu concentration increased with (NH4)(2)SO4 and NH4NO3 addition only under mowing treatment. Mowing synergistically interacted with urea addition to increase community-level Mn and Zn concentrations even with decreased soil organic matter, possibly because of compensatory plant growth and thus higher plant nutrient uptake intensity under mowing treatment. Overall, responses of plant-soil micronutrients to N addition varied with mowing and different N compounds, which were mainly regulated by soil physicochemical properties and plant growth. Different magnitude of micronutrient responses in plants and soils shed light on the necessity to consider the role of various N compounds in biogeochemical models when projecting the effects of N enrichment on grassland ecosystems.
关键词	Nitrogen enrichment Hay harvest Nitrogen compound Micronutrient cycling Plant nutrition Semiarid grassland
学科领域	Environmental Sciences
DOI	10.1016/j.envpol.2021.117969
收录类别	SCI
语种	英语
WOS关键词	FERTILIZER ; DEPOSITION ; RESPONSES ; GROWTH ; PH ; STOICHIOMETRY ; MANGANESE ; WATER ; ZINC ; MN
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000696803400006
出版者	ELSEVIER SCI LTD
文献子类	Article
出版地	OXFORD
EISSN	1873-6424
资助机构	Strategic Priority Research Program of the Chi-nese Academy of Sciences [XDA23080400] ; National Natural Science Foundation of China [32071563, 31870441] ; National Key Research and Development Program of China [2016YFC0500601] ; Youth Innovation Promotion Association of Chinese Academy of Sciences
作者邮箱	ruzhenwang@iae.ac.cn
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26629
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Peoples R China 2.Shenyang Univ, Coll Environm, Shenyang 110044, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Liu, Heyong,Wang, Ruzhen,Lu, Xiao-Tao,et al. Effects of nitrogen addition on plant-soil micronutrients vary with nitrogen form and mowing management in a meadow steppe[J]. ENVIRONMENTAL POLLUTION,2021,289.
APA	Liu, Heyong.,Wang, Ruzhen.,Lu, Xiao-Tao.,Cai, Jiangping.,Feng, Xue.,...&Jiang, Yong.(2021).Effects of nitrogen addition on plant-soil micronutrients vary with nitrogen form and mowing management in a meadow steppe.ENVIRONMENTAL POLLUTION,289.
MLA	Liu, Heyong,et al."Effects of nitrogen addition on plant-soil micronutrients vary with nitrogen form and mowing management in a meadow steppe".ENVIRONMENTAL POLLUTION 289(2021).

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