NWIPB OpenIR
Effect of Grazing Intensity on Soil and Plant delta N-15 of an Alpine Meadow
Du, Yangong1; Guo, Xiaowei1; Zhou, Geng2; Cao, Guangmin1; Li, Yikang1
2017
Source PublicationPOLISH JOURNAL OF ENVIRONMENTAL STUDIES
Volume26Issue:3Pages:1071-1075
SubtypeArticle
AbstractThe mechanisms underlying the retention of inorganic N were still not well understood in an alpine meadow on the Tibetan Plateau as well as in other high-altitude meadow sites greatly grazed and disturbed. We conducted field soil and dominant species foliar nitrogen natural abundance of stable isotope ratios (delta N-15) under four grazing intensities. It was demonstrated that soil delta N-15 decreased significantly from 5.83 +/- 0.20% to 2.17 +/- 0.48% at 0-10 cm with the elevation of grazing intensity. Grazing reduced the degree of ecosystem N openness. The delta N-15 value of surface soil was mainly affected by soil total nitrogen. Furthermore, the degree of nitrogen limitation increased with grazing elevation for sedge family and Gramineae family plants.
KeywordAlpine Meadow Soil Delta N-15 Foliar Delta N-15 Grazing Intensity
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.15244/pjoes/67977
WOS KeywordNATURAL N-15 ABUNDANCE ; NITROGEN-CYCLE ; INNER-MONGOLIA ; AVAILABILITY ; GRASSLANDS ; PATTERNS ; CARBON ; CHINA
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(31470530 ; Natural Science Foundation of Qinghai Province(2016-ZJ-918Q) ; Chinese Academy of Sciences ; 31200379)
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000403567900012
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Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/7017
Collection中国科学院西北高原生物研究所
Affiliation1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Bot, Xining 810008, Peoples R China
2.Bur Weihai Agr, Weihai 264200, Peoples R China
Recommended Citation
GB/T 7714
Du, Yangong,Guo, Xiaowei,Zhou, Geng,et al. Effect of Grazing Intensity on Soil and Plant delta N-15 of an Alpine Meadow[J]. POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2017,26(3):1071-1075.
APA Du, Yangong,Guo, Xiaowei,Zhou, Geng,Cao, Guangmin,&Li, Yikang.(2017).Effect of Grazing Intensity on Soil and Plant delta N-15 of an Alpine Meadow.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,26(3),1071-1075.
MLA Du, Yangong,et al."Effect of Grazing Intensity on Soil and Plant delta N-15 of an Alpine Meadow".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 26.3(2017):1071-1075.
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