Distribution and Accumulation of Soil Carbon in Temperate Wetland, Northeast China

作     者：LYU Mingzhi SHENG Lianxi ZHANG Zhongsheng ZHANG Li 

作者机构：Northeast Normal University Changchun 130024 China State Environment Protection Key Laboratory of Wetland Ecology and Vegetation Restoration Changchun 130117 China Key Laboratory of Wetland Ecology and Environment Institute of Northeast Geography and Agroecology Chinese Academy of Sciences Changchun 130012 China Everglades Wetland Research Park Florida Gulf Coast University Naples FL 34112 U.S.A. 

出 版 物：《Chinese Geographical Science》 (中国地理科学（英文版）)

年 卷 期：2016年第26卷第3期

页      面：295-303页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：Under the auspices of National Natural Science Foundation of China(No.41471081) Scientific Research Foundation of Graduate School of Northeast Normal University(No.12SSXT149) 

主　　题：carbon sequestration nutrients accumulation temperate wetlands Northeast China 

摘      要：Estimating carbon sequestration and nutrient accumulation rates in Northeast China are important to assess wetlands function as carbon sink buffering greenhouse gas increasing in North Asia. The objectives of this study were to estimate accreting rates of carbon and nutrients in typical temperate wetlands. Results indicated that average soil organic carbon(SOC), total nitrogen(TN) and total phosphorus(TP) contents were 37.81%, 1.59% and 0.08% in peatlands, 5.33%, 0.25% and 0.05% in marshes, 2.92%, 0.27% and 0.10% in marshy meadows, respectively. Chronologies reconstructed by 210 Pb in the present work were acceptable and reliable, and the average time to yield 0–40 cm depth sediment cores was 150 years. Average carbon sequestration rate(Carbonsq), nitrogen and phosphorus accumulation rates were 219.4 g C/(m^2·yr), 9.16 g N/(m^2·yr) and 0.46 g P/(m^2·yr) for peatland; 57.13 g C/(m^2·yr), 5.42 g N/(m^2·yr) and 2.16 g P/(m^2·yr) for marshy meadow; 78.35 g C/(m^2·yr), 8.70 g N/(m^2·yr) and 0.71 g P/(m2·yr) for marshy; respectively. Positive relations existed between Carbonsq with nitrogen and precipitations, indicating that Carbonsq might be strengthened in future climate scenarios.