Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1093/jpe/rtw134 |
Patterns of leaf N:P stoichiometry along climatic gradients in sandy region, north of China | |
Zhang, Lifang; Wang, Lilong; He, Wenliang; Zhang, Xinfang; An, Lizhe; Xu, Shijian | |
通讯作者 | Xu, Shijian |
来源期刊 | JOURNAL OF PLANT ECOLOGY
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ISSN | 1752-9921 |
EISSN | 1752-993X |
出版年 | 2018 |
卷号 | 11期号:2页码:218-225 |
英文摘要 | Aims Biological and environmental factors determine geographic patterns of plant nutrient stoichiometry jointly. Unraveling the distribution pattern and the potential drivers of nutrient stoichiometry is therefore critical for understanding the adaptive strategies and biogeochemistry cycling. Aimed to determine how leaf nitrogen (N):phosphorus (P) stoichiometry is linked to biological and environmental factors, we investigated the patterns of psammophyte leaf N:P stoichiometry in sandy region, northern China, and the potential factors affecting leaf N:P stoichiometry were explored. Methods Based on 10 m x 10 m quadrates survey, the leaves of 352 dominant psammophyte samples belonging to 167 species were collected cross a 3000 km east-west transect in sandy environments, northern China. The samples were further classified into the following groups on the basis of plant life forms and functional groups (photosynthesis pathways and nitrogen fixation). The structural equation modeling was employed to clarify the importance of biological and environmental factors on leaf N:P stoichiometry. Important Findings Generally, the higher leaf N and P concentrations, but lower N:P ratio were found in psammophyte compared with other ecosystems. Mean annual temperature (MAT) influenced the leaf N, P concentrations negatively, while mean annual precipitation (MAP) did positively. MAP played greater influence on leaf N, P concentrations than MAT did. MAP affected leaf N, P concentrations directly or indirectly through phylogeny, while MAT only shown direct effect on leaf N concentration. The psammophyte was more limited by N, rather P, in sandy region of northern China. These results suggest that phylogeny of psammophyte and climate jointly influence leaf N:P stoichiometry, and the results could be helpful in modeling biogeochemical nutrients cycling in vulnerable ecosystems like sandy environment. |
英文关键词 | N:P stoichiometry psammophyte climatic factors sandy region |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000427134100006 |
WOS关键词 | PHOSPHORUS STOICHIOMETRY ; NUTRIENT CONTENT ; NITROGEN ; DESERT ; SOIL ; BIOGEOGRAPHY ; GRASSES ; TRAITS |
WOS类目 | Plant Sciences ; Ecology |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/211230 |
作者单位 | Lanzhou Univ, Sch Life Sci, MOE Key Lab Cell Act & Stress Adaptat, 222 Southern Tianshui Rd, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Lifang,Wang, Lilong,He, Wenliang,et al. Patterns of leaf N:P stoichiometry along climatic gradients in sandy region, north of China[J]. 兰州大学,2018,11(2):218-225. |
APA | Zhang, Lifang,Wang, Lilong,He, Wenliang,Zhang, Xinfang,An, Lizhe,&Xu, Shijian.(2018).Patterns of leaf N:P stoichiometry along climatic gradients in sandy region, north of China.JOURNAL OF PLANT ECOLOGY,11(2),218-225. |
MLA | Zhang, Lifang,et al."Patterns of leaf N:P stoichiometry along climatic gradients in sandy region, north of China".JOURNAL OF PLANT ECOLOGY 11.2(2018):218-225. |
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