农田生态系统土壤碳固持效应研究  

Study on Soil Carbon Sequestration in the Farmland Ecosystem

作　　者：蔡苗 Cai Miao(Shaanzi Provincial Land Engineering Construction Group Co. ,Ltd, Xi＇ an 710075, China Institute of Land Engineering ＆ Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd, Xi＇ an 710075, China Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources, Xi＇ an 710075, China Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xi＇ an 710075, China)

机构地区：[1]陕西省土地工程建设集团有限责任公司,陕西西安710075 [2]陕西地建土地工程技术研究院有限责任公司,陕西西安710075 [3]国土资源部退化及未利用土地整治工程重点实验室,陕西西安710075 [4]陕西省土地整治工程技术研究中心,陕西西安710075

出　　处：《绿色科技》2017年第18期1-4,17,共5页Journal of Green Science and Technology

基　　金：陕西省重点科技创新团队计划项目(编号:2016KCT-23)

摘　　要：指出了农田生态系统在陆地碳循环中具有重要地位且受人为活动影响较大,通过实施合理科学的土地管理措施,稳定和提高农田土壤碳库贮量,对于保证全球粮食安全与缓解气候变化趋势具有双重的积极意义。详细论述了全球及我国土壤有机碳库和无机碳库的固持总量以及农田土壤固碳的潜力,分析了农田管理中的土地利用方式、种植制度、施肥措施、灌溉条件等分别对土壤有机碳库和无机碳库的影响,以期为提升土壤碳库总量、提高农业生产力、缓解气候变化等提供参考。The farmland ecosystem greatly influenced by the human activitieshas important status in the terrestrial carbon cycle. It is necessary to stabilize and improve farm soil carbon sequestration by reasonable scientific land management methods, which has positive effects on the global food security and the mitigation of climatechange. This paper discussed the total amount and the potential storage of soil organic carbon and inorganic carbon in China and all over the world. It analyzed the influences of land utilization type, cropping system, fertilization measures and irrigation condition in farmland management on the soil organic provide a reference to improve soil carbon sequestration, tion. carbon and inorganic carbon storage. The purpose was to agricultural productivityas well as climate change mitigation.

关 键 词：土壤有机碳贮量 土壤无机碳贮量 农田管理 残体分解 

分 类 号：S153.6[农业科学—土壤学]