文献类型：期刊文献

英文题名：Latitude, silt and vegetation are important factors affecting the stoichiometric ratios of soil C, N and P in the Amygdalus pedunculata community across the XilinGol League, China

作者：Gan, Honghao[1] Chen, Jiawei[1] Yang, Hongxiao[2] Li, Yifu[3] Fang, Kai[1] Zhang, Qian[1] Chu, Jianmin[1,4]

第一作者：甘红豪

通信作者：Chu, JM[1];Chu, JM[2]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Coastal Forestry Res Ctr, Natl Forestry & Grassland Adm, Beijing 100091, Peoples R China;[2]Qingdao Agr Univ, Coll Resources & Environm, Qingdao 266109, Shandong, Peoples R China;[3]Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo 454003, Henan, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Inner Mongolia, Peoples R China

年份：2025

外文期刊名：PLANT AND SOIL

收录：;Scopus(收录号：2-s2.0-105008292984);WOS:【SCI-EXPANDED(收录号:WOS:001511354200001)】；

基金：This work was jointly supported by the Fundamental Research Funds of CAF (Grant No. CAFYBB2020ZB001) and the Science & Technology Fundamental Resources Investigation Program (Grant NO. 2019FY100801, 2017FY100205).

语种：英文

外文关键词：Amygdalus pedunculata; Stoichiometry; Environmental factors; Vegetation; Community diversity

摘要：Background and AimsThe distribution patterns of soil carbon (C), nitrogen (N), and phosphorus (P) affect soil nutrients and plant growth, which is highly important for the conservation and restoration of soil ecosystems. Therefore, in this study, the stoichiometry of soil organic C (SOC), total N (TN), and total P (TP) in the Amygdalus pedunculata community and their relationships with influencing factors were analyzed.MethodsFive main distribution areas of A. pedunculata were selected in the XilinGol League. The plant community characteristics in these areas were investigated and soil samples were collected at depth intervals of 0-10, 10-20, and 20-30 cm. The SOC, TN, and TP concentrations were measured, and climatic data and soil texture data were collected. The key factors influencing the SOC, TN, and TP stoichiometry were investigated.ResultsFrom the topsoil layer to the deeper soil layer, the SOC, TN and TP concentrations decreased from 5.59 gkg-1 to 3.38 gkg-1, from 0.56 gkg-1 to 0.40 gkg-1, and from 0.12 gkg-1 to 0.11 gkg-1, respectively. The average stoichiometric ratios of SOC, TN, and TP were 8.96, 41.64, and 4.98, respectively. The changes in soil stoichiometry at different sites were influenced by complex interactions among climatic conditions, vegetation patterns, and soil properties.ConclusionLatitude, silt content, herbaceous plant and community diversity indices, and coverage significantly affected the stoichiometry of SOC, TN, and TP in the A. pedunculata community in the XilinGol League.