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| 吉林东部山地沼泽湿地土壤碳、氮、磷含量及其生态化学计量学特征 | |
| 引用本文： | 肖烨,商丽娜,黄志刚,张文广,薛振山,张仲胜,吕宪国.吉林东部山地沼泽湿地土壤碳、氮、磷含量及其生态化学计量学特征[J].地理科学,2014,34(8):994-1001. |
| 作者姓名： | 肖烨 商丽娜 黄志刚 张文广 薛振山 张仲胜 吕宪国 |
| 作者单位： | 1.中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室,吉林 长春 130012 2.中国科学院大学,北京 100049 |
| 基金项目： | 中国科学院战略性先导科技专项课题(XDA05050508)资助 |
| 摘 要： | 湿地土壤有机碳、氮和磷含量变化显著影响着湿地生态系统的生产力。为阐明吉林东部山地沼泽湿地土壤养分的空间分布特征,以吉林省敦化市4种典型山地沼泽湿地：落叶松-苔草湿地(T1)、莎草湿地(T2)、小叶章-甜茅湿地(T3)和沼泽化草甸湿地(T4)为研究对象,研究了土壤有机碳、全氮和全磷含量及其化学计量比的空间分布特征及影响因素。结果表明：4种山地沼泽湿地类型土壤有机碳、全氮、全磷含量均值分别为343.11 mg/g、28.03 mg/g和4.00 mg/g,变异系数为有机碳(9.26%)<全氮(16.52%)<全磷(48.64%)。在0~40 cm土层内, T1、T2和T3土壤有机碳、全氮、全磷含量随土壤深度的增加呈先增加后减少的趋势,在10~20 cm土层出现累积峰; T4土壤有机碳、全氮、全磷含量随土壤深度的增加而减少。土壤有机碳、全氮含量的变化趋势为T1 |
| 关 键 词： | 土壤有机碳 全氮 全磷 山地沼泽 生态化学计量学特征 |
| 收稿时间： | 2013-09-24 |
| 修稿时间： | 2014-02-16 |
Ecological Stoichiometry Characteristics of Soil Carbon,Nitrogen and Phosphorus in Mountain Swamps of Eastern Jilin Province |
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| Ye XIAO,Li-na SHANG,Zhi-gang HUANG,Wen-guang ZHANG,Zheng-shan XUE,Zhong-sheng ZHANG,Xian-guo LU.Ecological Stoichiometry Characteristics of Soil Carbon,Nitrogen and Phosphorus in Mountain Swamps of Eastern Jilin Province[J].Scientia Geographica Sinica,2014,34(8):994-1001. | |
| Authors: | Ye XIAO Li-na SHANG Zhi-gang HUANG Wen-guang ZHANG Zheng-shan XUE Zhong-sheng ZHANG Xian-guo LU |
| Institution: | 1. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China 2. University of Chinese Academy of Sciences, Beijing 100049, China |
| Abstract: | Wetland soil organic carbon, nitrogen and phosphorus content significantly affect the productivity of ecosystem. To clarify spatial distribution characteristics of soil nutrients in mountain swamps located in eastern part of Jilin province, four typical swamps (Larix-carex swamp (T1), Scyperus dulourii swamp (T2), Calamagrastis angustifolia-glyceria acutiflora swamp (T3) and Paludification meadows (T4)) were selected in Dunhua city. In these swamps, we analyzed the spatical distribution characteristic of soil organic carbon (SOC), total nitrogen (TN) and total phosphorus (TP) content and theirs stoichiometric ratios and influencing factors. The average contents of SOC, TN and TP in the four swamp types were 343.11 mg/g, 28.03 mg/g and 4.00 mg/g, and the trends of variation coefficient were SOC (9.26%) < TN (16.52%) < TP (48.64%). The profile change trend of SOC, TN, TP contents presented an ‘increased-decreased’ unimodal curve during 0-40 cm soil layer and the peak values existed in 10-20 cm soil layer under T1, T2 and T3. While the contents of SOC, TN and TP under T4 decreased coupling with soil depth. In the study area, the change trends of SOC and TN contents were as follows: T1 |
| Keywords: | soil organic carbon total nitrogen total phosphorus mountain swamp ecological stoichiometry characteristics |
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