文献类型：期刊文献

英文题名：Climatic and edaphic variables determine leaf C, N, P stoichiometry of deciduous Quercus species

作者：Lin, Yutong[1,2,3,4] Lai, Yuan[1,2,3,4] Tang, Songbo[1,2,3,4] Qin, Zhangfen[1,2,3,4] Liu, Jianfeng[5] Kang, Fengfeng[6] Kuang, Yuanwen[1,2,3]

第一作者：Lin, Yutong

通信作者：Kuang, YW[1];Kuang, YW[2];Kuang, YW[3]

机构：[1]Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China;[2]Chinese Acad Sci, South China Bot Garden, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou 510650, Peoples R China;[3]South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Guangzhou 511458, Peoples R China;[4]Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;[5]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[6]Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China

年份：2022

卷号：474

期号：1-2

起止页码：383-394

外文期刊名：PLANT AND SOIL

收录：;Scopus(收录号：2-s2.0-85125547025);WOS:【SCI-EXPANDED(收录号:WOS:000763882900001)】；

基金：This study was supported by the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (No. GML2019ZD0408) and the National Natural Science Foundtion of China (No 41771522, 42071065). We thank Caichuan Huang, Chaodong Yang, Chenhua Lei, Chunyu Zhou, Hao Jiang, Jiang Liu, Jinfu Liu, Liqin Gao, Meihua Liu, Rongxun Xu, Xiaofei Lu, Xiaoming Fang, Xinchun Lin, Xinghao Tang, Yihua Xiao, and Yongxing Li for their generous help in samplings.

语种：英文

外文关键词：Climate change; Edaphic variables; Latitude; Leaf stoichiometry; Longitude; Quercus species

摘要：Purpose Leaf elemental stoichiometry is indicative of plant nutrient limitation, community composition, ecosystem function. Understanding the variations of leaf carbon (C), nitrogen (N), and phosphorus (P) stoichiometry at genus-level across large geographic regions and identifying their driving factors are important to predict the response and adaptation of the deciduous Quercus species affected by climate change. Methods Here, we determined the patterns of leaf concentrations ([]) and ratios ( /) of C, N, P of five deciduous Quercus species across China covering similar to 20 latitude (similar to 21-41 degrees N) and longitude (similar to 99-119 degrees E) degrees, and detected their relationships with climatic and edaphic variables. Results Leaf [C], [N] and N/P, C/P significantly increased, while leaf [P] and C/N decreased with increasing latitude. Leaf stoichiometry except for leaf [C] had no significant trends along the longitude. Climatic variables, i.e., mean annual temperature, mean annual precipitation, aridity index, and the potential evapotranspiration as well as the edaphic factors, i.e., the concentration of soil organic matter, soil P, and soil pH were the determinants of the geographic patterns of leaf C, N, P stoichiometry of the deciduous Quercus species at the broad geographic range. The studied deciduous Quercus species growing in cold, dry and infertile environments tended to increase leaf [P] and C/N but to decrease leaf [C], [N], C/P and N/P, implying positive regulation on nutrient strategies to adapt to different environments. Conclusions Both climatic and edaphic variables have important effects on leaf C, N, P stoichiometry of the studied deciduous Quercus species across large geographic scales. The ongoing climate change might alter nutrient strategies and potentially shift the distribution range of this eurytopic species.