农田生态系统土壤有机碳库及其影响因子.pdf

Chinese Journal ofEcology 2007, 26(2) : 278- 285 * 1* * 1, 2 1 姜 勇 庄秋丽 梁文举 1 2 ( 中国科学院沈阳应用生态研究所, 沈阳 110016; 中国科学院研究生院, 北京 100039) 土壤有机碳( SOC)的数量和质量在很大程度上与维持和提高土壤肥力 切相关 农田生态系统土壤碳库研究一直是农业生态和环境领域的一个主要方向土地利用耕 作作物类型种植 度灌溉施肥以及其他人为活动等, 对农田生态系统土壤有机碳库的 变化均能产生影响本文综合评述了农田生态系统土壤有机碳库及其影响因子, 土壤碳截 获潜力, 维持和提高土壤有机碳库的措施, 以及农田土壤碳截获在温室气体减排及气候变 化中的潜在作用等, 最后提出了农田生态系统土壤有机碳库研究的主要方向 农田生态系统; 土壤有机碳; 土壤质量; 碳截获; 气候变化 S153. 6 A 1000- 4890(2007) 02- 0278- 08 1 Soil organic carbon pool and its affecting factors in farm land ecosystem. JIANG Yong, 1, 2 1 1 ZH ANG Q iuli , LIANGW enju ( Institu te of App lied E cology, Ch ineseA cademy of Sciences, 2 Shenyang 110016, China; Graduate University of ChineseA cademy of Sciences, B eij ing 100039, China . Chinese Journal of E cology, 2007, 26(2): 278- 285. Abstract: Themaintenance and mi provement of soil fertility greatly rest w ith the quantity and quality of soil organic carbon ( SOC), while the study of SOC pool in farm land ecosystem is a main research direction of agricultura,l ecological, and environm entalsciences. Land use, culti vation, crop selection, planting density, irrigation, fertilization, and other anthropogenic activi ties all affect the dynam ics of SOC poo.l This paper summarized the research advances on the SOC pool and its affecting factors in farm land ecosystem, soilC seque