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

机构：[1] International Centre for Bamboo and Rattan, Beijing, 100102, China; [2] Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, 510520, China; [3] School of Landscape Architecture, Beijing University of Agriculture, Beijing, 102206, China; [4] College of Forestry and Landscape Architecture, South China Agricultural University, Tianhe District, Guangzhou, 510642, 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)

语种：英文

外文关键词：Bamboo - Climate change - Forestry - Nitrogen - Nutrients - Phosphorus - Stoichiometry - Temperature

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. ? 2023 by the authors.