IB-CAS  > 植被与环境变化国家重点实验室
Frequency and intensity of nitrogen addition alter soil inorganic sulfur fractions, but the effects vary with mowing management in a temperate steppe
Li, Tianpeng; Liu, Heyong1; Wang, Ruzhen; Lu, Xiao-Tao; Yang, Junjie2; Zhang, Yunhai2; He, Peng; Wang, Zhirui; Han, Xingguo2; Jiang, Yong
2019
Source PublicationBIOGEOSCIENCES
ISSN1726-4170
Volume16Issue:14Pages:2891-2904
AbstractSulfur (S) availability plays a vital role in driving functions of terrestrial ecosystems, which can be largely affected by soil inorganic S fractions and pool size. Enhanced nitrogen (N) input can significantly affect soil S availability, but it still remains largely unknown if the N effect varies with frequency of N addition and mowing management in grasslands. To investigate changes in the soil S pool and inorganic S fractions (soluble S, adsorbed S, available S, and insoluble S), we conducted a field experiment with different frequencies (two times per year vs. monthly additions per year) and intensities (i.e., 0, 1, 2, 3, 5, 10, 15, 20, and 50 g N m(-2) yr(-1)) of NH4NO3 addition and mowing (unmown vs. mown) over 6 years in a temperate grassland of northern China. Generally, N addition frequency, N intensity, and mowing significantly interacted with each other to affect most of the inorganic S fractions. Specifically, a significant increase in soluble S was only found at high N frequency with the increasing intensity of N addition. Increasing N addition intensity enhanced adsorbed S and available S concentrations at low N frequency in unmown plots; however, both fractions were significantly increased with N intensity at both N frequencies in mown plots. The high frequency of N addition increased the concentrations of adsorbed S and available S in comparison to the low frequency of N addition only in mown plots. Changes in soil S fractions were mainly related to soil pH, N availability, soil organic carbon (SOC), and plant S uptake. Our results suggested that N input could temporarily replenish soil-available S by promoting dissolution of soil-insoluble S with decreasing soil pH and mineralization of organic S due to increasing plant S uptake. However, the significant decrease in organic S and total S concentrations with N addition intensity in mown plots indicated that N addition together with biomass removal would eventually cause soil S depletion in this temperate grassland in the long term. Our results further indicated that using large and infrequent N additions to simulate N deposition can overestimate the main effects of N deposition and mowing management on soil S availability in semiarid grasslands.
Subject AreaEcology ; Geosciences, Multidisciplinary
DOI10.5194/bg-16-2891-2019
Indexed BySCI
Language英语
WOS KeywordPLANT ; DEPOSITION ; GRASSLAND ; SULFATE ; CARBON ; MINERALIZATION ; FERTILIZATION ; RESPONSES ; TRANSFORMATIONS ; ENRICHMENT
WOS Research AreaEnvironmental Sciences & Ecology ; Geology
WOS IDWOS:000477975300002
PublisherCOPERNICUS GESELLSCHAFT MBH
SubtypeArticle
Publication PlaceGOTTINGEN
EISSN1726-4189
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31870441, 31770525, 31430016] ; National Key Research and Development Program of China [2016YFC0500707]
Corresponding Author Emailruzhenwang@iae.ac.cn ; jiangyong@iae.ac.cn
OAgold, Green Submitted
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/19695
Collection植被与环境变化国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China
2.Shenyang Agr Univ, Coll Land & Environm, Shenyang 110866, Liaoning, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
Recommended Citation
GB/T 7714
Li, Tianpeng,Liu, Heyong,Wang, Ruzhen,et al. Frequency and intensity of nitrogen addition alter soil inorganic sulfur fractions, but the effects vary with mowing management in a temperate steppe[J]. BIOGEOSCIENCES,2019,16(14):2891-2904.
APA Li, Tianpeng.,Liu, Heyong.,Wang, Ruzhen.,Lu, Xiao-Tao.,Yang, Junjie.,...&Jiang, Yong.(2019).Frequency and intensity of nitrogen addition alter soil inorganic sulfur fractions, but the effects vary with mowing management in a temperate steppe.BIOGEOSCIENCES,16(14),2891-2904.
MLA Li, Tianpeng,et al."Frequency and intensity of nitrogen addition alter soil inorganic sulfur fractions, but the effects vary with mowing management in a temperate steppe".BIOGEOSCIENCES 16.14(2019):2891-2904.
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