NWIPB OpenIR
Effect of Grazing Intensity on Soil and Plant delta N-15 of an Alpine Meadow
Du, Yangong ; Guo, Xiaowei ; Zhou, Geng ; Cao, Guangmin ; Li, Yikang
2017
发表期刊POLISH JOURNAL OF ENVIRONMENTAL STUDIES
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.
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/53662
专题中国科学院西北高原生物研究所
推荐引用方式
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.
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.
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 (2017).
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