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Intensity and frequency of nitrogen addition alter soil chemical properties depending on mowing management in a temperate steppe

文献类型：期刊论文

作者Wang, Ruzhen; Zhang, Yunhai3; He, Peng; Yin, Jinfei; Yang, Junjie3; Liu, Heyong; Cai, Jiangping3; Shi, Zhan; Feng, Xue; Dijkstra, Feike A.
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2018
卷号224页码:77-86
ISSN号0301-4797
关键词Nitrogen deposition Soil acidification Base cation Soil micronutrient Soil acid buffering capacity Semi-arid grassland
DOI10.1016/j.jenvman.2018.07.036
文献子类Article
英文摘要Anthropogenic nitrogen (N) enrichment can significantly alter soil chemical properties in various ecosystems. Previous manipulative N experiments mainly focused on the intensity of N addition on soil properties by changing N input rates. It remains unclear, however, whether frequency of N addition can affect soil chemical properties. We examined the effects of frequency (2 versus 12 applications yr(-1)) and rate (ranging from 0 to 50 g N m(-2) yr(-1)) of N addition on soil chemical properties of pH, base cations, soil pH buffering capacity (pHBC), and soil available micronutrients in a temperate steppe with and without mowing. Mowing significantly increased the effective cation exchange capacity (ECEC), soil exchangeable Ca and Na, available Fe, and soil pHBC when N was applied at low frequency. Low frequency of N addition significantly decreased soil pH and exchangeable Na but increased soil exchangeable Mg without mowing; however, it increased soil exchangeable Na and available Zn with mowing, while available Fe and Mn increased both with and without mowing. Higher rates of N addition (>= 20 g N m(-2) yr(-1)) decreased soil pH, ECEC and exchangeable Ca but increased soil available Fe, Mn and Cu regardless of the mowing treatment and frequency of N addition. Changes in soil organic matter, pHBC and ECEC were the main reasons affecting soil pH across mowing and N application treatments. Our results indicate that frequency of N addition played an essential role in altering soil chemical properties. Simulating N deposition via large and infrequent N additions can underestimate (exchangeable Mg and available Fe and Mn) or overestimate (soil pH and exchangeable Na) changes in soil properties. Our results further suggest that the effects of frequency of N addition on soil chemical attributes in semi-arid grassland ecosystems can be regulated by appropriate mowing management.
学科主题Environmental Sciences
电子版国际标准刊号1095-8630
出版地LONDON
WOS关键词INNER-MONGOLIA GRASSLANDS ; PH BUFFERING CAPACITY ; BASE CATIONS ; LAND-USE ; ECOSYSTEM STABILITY ; NORTHERN CHINA ; N DEPOSITION ; PLANT ; FERTILIZATION ; PRECIPITATION
语种英语
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号WOS:000442058700009
资助机构National Key Research and Development Program of China [2016YFC0500707] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31430016, 31770525]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20447]  
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 Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Dijkstra, Feike A.] Univ Sydney, Sch Life & Environm Sci, Sydney Inst Agr, Sydney, NSW 2006, Australia
3.Chinese Acad Sci, State Engn Lab Soil Nutrient & Management, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Ruzhen,Zhang, Yunhai,He, Peng,et al. Intensity and frequency of nitrogen addition alter soil chemical properties depending on mowing management in a temperate steppe[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2018,224:77-86.
APA Wang, Ruzhen.,Zhang, Yunhai.,He, Peng.,Yin, Jinfei.,Yang, Junjie.,...&Jiang, Yong.(2018).Intensity and frequency of nitrogen addition alter soil chemical properties depending on mowing management in a temperate steppe.JOURNAL OF ENVIRONMENTAL MANAGEMENT,224,77-86.
MLA Wang, Ruzhen,et al."Intensity and frequency of nitrogen addition alter soil chemical properties depending on mowing management in a temperate steppe".JOURNAL OF ENVIRONMENTAL MANAGEMENT 224(2018):77-86.

入库方式： OAI收割

来源：植物研究所

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