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
发表期刊POLISH JOURNAL OF ENVIRONMENTAL STUDIES
卷号26期号:3页码:1071-1075
文章类型Article
摘要The 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.
关键词Alpine Meadow Soil Delta N-15 Foliar Delta N-15 Grazing Intensity
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.15244/pjoes/67977
关键词[WOS]NATURAL N-15 ABUNDANCE ; NITROGEN-CYCLE ; INNER-MONGOLIA ; AVAILABILITY ; GRASSLANDS ; PATTERNS ; CARBON ; CHINA
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(31470530 ; Natural Science Foundation of Qinghai Province(2016-ZJ-918Q) ; Chinese Academy of Sciences ; 31200379)
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000403567900012
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/7017
专题中国科学院西北高原生物研究所
作者单位1.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
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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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