文献类型：期刊文献

英文题名：Latitudinal Patterns of Leaf Carbon, Nitrogen, and Phosphorus Stoichiometry in Phyllostachys propinqua McClure across Northern China

作者：Chen, Lei[1] Li, Le[2] Pei, Nancai[2] Zhu, Lin[1] Li, Shan[1,3] Li, Xiaohua[1] Zhang, Xuan[1] Li, Juan[1] Huang, Biao[1] Qin, Xinsheng[4]

第一作者：Chen, Lei

通信作者：Zhu, L[1];Qin, XS[2]

机构：[1]Int Ctr Bamboo & Rattan, Beijing 100102, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China;[3]Beijing Univ Agr, Sch Landscape Architecture, Beijing 102206, Peoples R China;[4]South China Agr Univ, Coll Forestry & Landscape Architecture, Guangzhou 510642, Peoples R China

年份：2023

卷号：14

期号：11

外文期刊名：FORESTS

收录：;EI(收录号：20234815123024);Scopus(收录号：2-s2.0-85178133503);WOS:【SCI-EXPANDED(收录号:WOS:001109394400001)】；

基金：The authors thank Ziyun Dai from Beijing Institute of Landscape Architecture for his help in the investigation processing.

语种：英文

外文关键词：bamboo; spatial pattern; climate factors; plant nutrient; urban forest

摘要：Spatial patterns of leaf carbon (C), nitrogen (N), and phosphorus (P) stoichiometry play a pivotal role in the comprehension of terrestrial ecosystem dynamics, nutrient cycling, in responses to contemporary global climate change, and the evolutionary trajectories of leaf morphology and function. These patterns are not only solely shaped by plant and community composition, but also are profoundly influenced by environmental factors. Therefore, there is a compelling need for an in-depth investigation into individual species to discern the intricate impacts of soil and climate on leaf stoichiometry. In this study, we assessed the C, N, and P concentrations of mature leaves from 20 Phyllostachys propinqua populations in the urban forest across northern China covering a substantial latitudinal gradient. Our findings revealed that the average leaf concentrations of C, N, and P in P. propinqua were recorded at 0.46 g g(-1), 23.19 mg g(-1), and 1.40 mg g(-1), respectively. Notably, we observed that leaf C and P concentrations, as well as the C:N ratios, exhibited significant increases with rising latitude. Conversely, leaf N concentrations and N:P ratios exhibited a marked decline with increasing latitude. These patterns were primarily driven by climate factors such as mean annual temperature (MAT) and lowest temperature (LT). In contrast, we found that only leaf C concentrations were correlated with soil N levels. These results underscored the differential spatial distribution of leaf C, N, and P stoichiometry in urban forest across northern China, predominantly instigated by climatic factors, particularly in regions characterized by lower temperatures. Our findings further suggest that P. propinqua enhances its adaptability to low-temperature environments by elevating leaf C and P concentrations.