Knowledge Management System Of Institute of Earth Environment, CAS
Nutrient stoichiometry of three plant species under a natural nutrient gradient of a semiarid small watershed | |
Qiu, LJ (Qiu, Linjing)[ 1 ]; Wei, XR (Wei, Xiaorong)[ 2 ]; Li, LH (Li, Linhai)[ 3 ] | |
2013-04-01 | |
发表期刊 | ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE |
卷号 | 63期号:3页码:231-240 |
文章类型 | 期刊论文 |
摘要 | Current understanding of plant nutrient stoichiometry mainly focus on C, N, and P and in humid and tropic regions. This study was conducted to investigate nutrient stoichiometry in a semaird small watershed. Three dominant plants, Medicago sativa, Stipa bungeana, and Artemisia sacrorum, sampled along a natural nutrient gradient, were analyzed with respect to plant nutrient stoichiometry (N:P, N:K, and K:P). The results showed that nutrient stoichiometry varied greatly between plants and within the same plant at the small watershed scale. At the natural nutrient gradient, N:P of the N limited plant is mainly determined by plant N, while that of P or P+N limited plants were dominated by plant P. The N:K and K:P of both N limited and P or N+P limited plants were mainly controlled by plant K with weak relations to nutrient limitations. Aboveground biomass directly influences nutrient stoichiometry, while extractable soil nutrients exert their impacts on stoichiometry through aboveground biomass. |
关键词 | Aboveground Biomass Nutrient Gradient Nutrient Stoichiometry Plant Nutrients Small Watershed Soil Extractablenutrients |
DOI | 10.1080/09064710.2012.753107 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9984 |
专题 | 黄土与第四纪地质国家重点实验室(2010~) |
通讯作者 | Wei, XR (Wei, Xiaorong)[ 2 ] |
作者单位 | 1.Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi, China; 2.Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi,China; 3.Beijing Museum of Natural History, Dongcheng, Beijing, China |
推荐引用方式 GB/T 7714 | Qiu, LJ ,Wei, XR ,Li, LH . Nutrient stoichiometry of three plant species under a natural nutrient gradient of a semiarid small watershed[J]. ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,2013,63(3):231-240. |
APA | Qiu, LJ ,Wei, XR ,&Li, LH .(2013).Nutrient stoichiometry of three plant species under a natural nutrient gradient of a semiarid small watershed.ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,63(3),231-240. |
MLA | Qiu, LJ ,et al."Nutrient stoichiometry of three plant species under a natural nutrient gradient of a semiarid small watershed".ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE 63.3(2013):231-240. |
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