Arid
DOI10.1038/srep06932
Leaf nitrogen and phosphorus of temperate desert plants in response to climate and soil nutrient availability
He, Mingzhu1; Dijkstra, Feike A.2; Zhang, Ke1; Li, Xinrong1,3; Tan, Huijuan1,3; Gao, Yanhong1; Li, Gang1
通讯作者He, Mingzhu
来源期刊SCIENTIFIC REPORTS
ISSN2045-2322
出版年2014
卷号4
英文摘要

In desert ecosystems, plant growth and nutrient uptake are restricted by availability of soil nitrogen (N) and phosphorus (P). The effects of both climate and soil nutrient conditions on N and P concentrations among desert plant life forms (annual, perennial and shrub) remain unclear. We assessed leaf N and P levels of 54 desert plants and measured the corresponding soil N and P in shallow (0-10 cm), middle (10-40 cm) and deep soil layers (40-100 cm), at 52 sites in a temperate desert of northwest China. Leaf P and N:P ratios varied markedly among life forms. Leaf P was higher in annuals and perennials than in shrubs. Leaf N and P showed a negative relationship with mean annual temperature (MAT) and no relationship with mean annual precipitation (MAP), but a positive relationship with soil P. Leaf P of shrubs was positively related to soil P in the deep soil. Our study indicated that leaf N and P across the three life forms were influenced by soil P. Deep-rooted plants may enhance the availability of P in the surface soil facilitating growth of shallow-rooted life forms in this N and P limited system, but further research is warranted on this aspect.


类型Article
语种英语
国家Peoples R China ; Australia
收录类别SCI-E
WOS记录号WOS:000344315200004
WOS关键词N-P STOICHIOMETRY ; ECOLOGICAL STOICHIOMETRY ; ECOSYSTEM STRUCTURE ; SPECIES RICHNESS ; GLOBAL PATTERNS ; FOOD WEBS ; TERRESTRIAL ; GROWTH ; GRASSLAND ; DIVERSITY
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
来源机构中国科学院西北生态环境资源研究院
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/184921
作者单位1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China;
2.Univ Sydney, Ctr Carbon Water & Food, Dept Environm Sci, Sydney, NSW 2006, Australia;
3.Key Lab Stress Physiol & Ecol Cold & Arid Reg Gan, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
He, Mingzhu,Dijkstra, Feike A.,Zhang, Ke,et al. Leaf nitrogen and phosphorus of temperate desert plants in response to climate and soil nutrient availability[J]. 中国科学院西北生态环境资源研究院,2014,4.
APA He, Mingzhu.,Dijkstra, Feike A..,Zhang, Ke.,Li, Xinrong.,Tan, Huijuan.,...&Li, Gang.(2014).Leaf nitrogen and phosphorus of temperate desert plants in response to climate and soil nutrient availability.SCIENTIFIC REPORTS,4.
MLA He, Mingzhu,et al."Leaf nitrogen and phosphorus of temperate desert plants in response to climate and soil nutrient availability".SCIENTIFIC REPORTS 4(2014).
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