施肥对黑土活性有机碳和碳库管理指数的影响  

Effect of Fertilization on Soil Active C and C Pool Management Index of Black Soil

作　　者：王晶 朱平[2] 张男[3] 解宏图 张旭东 

机构地区：[1]中科院沈阳应用生态所陆地生态过程开放实验室,辽宁沈阳110016 [2]吉林省农业科学院土肥所,吉林公主岭136100 [3]沈阳市食品发酵研究院,辽宁沈阳110005

出　　处：《土壤通报》2003年第5期394-397,共4页Chinese Journal of Soil Science

基　　金：国家引进"国外杰出人才(百人计划)项目";中国科学院知识创新工程重要方向项目(KZCX-SW-416-02);中国科学院知识创新工程重大项目(KZCXI-SW-19-3-01)资助

摘　　要：运用更有效的量化指标来了解和表征土壤碳库的变化是研究土壤碳库动态平衡的基础,也是评价土壤肥力和生态系统的可持续性的必要手段。我们采用土壤碳库管理指数,讨论了国家黑土肥力监测区内的不同施肥情况下土壤碳库的变化。结果显示:施肥与否、施肥种类和数量均对土壤活性有机碳和土壤碳库管理指数有非常显著的影响,施肥尤其高量有机肥与化肥(NPK)配施。更有助于土壤活性有机碳的增加,相应地也就提高了土壤碳库管理指数(CMPI),M2+CK、M4+CK、MO+NPK、M1+NPK、1.5M1+NPK、M2+NPK、M4+NPK各施肥处理对土壤活性有机碳提高的贡献率分别高达15.6％、24.8％、63.6％、135.1％、144.2％、185.9％和256.5％,对土壤碳库管理指数的提高系数达0.48、0.72、1.17、3.21、4.70、7.86和10.44。农业生产中必须切实地重视高量有机肥与化肥(NPK)的配施,以求保持土壤肥力,提高土壤质量,使土壤碳库处于良性状态,最终达到维持土壤的可持续利用之目的。It is necessary to use effective quantitative indices for the evaluation of the change and dynamics of soil organic carbon pools and it is also important for the assessment of soil quality and agro - ecosystem sustainability. In the paper, we discussed the effect of fertilization on soil organic carbon pools indicated by the C pool management index (CPMI). The soils were collected in the Long - term Experimental Station of Fertilization ( Mollisol), Gongzhuling. The results indicated that soil active C and CPMI were significantly improved by the application of fertilizers, especially organic fertilizer. The content of soil active C increased by 15. 6, 24. 8, 63. 6,135.1,144. 2, 185.9, and 256.5% by the addition of M2 + CK, M4 + CK, MO + NPK, Ml + NPK, M1.5 + NPK, M2 + NPK, and M4 + NPK respectively. The corresponding CPMI values were 0,48, 0.72, 1.17, 3.21, 4.70, 7.86 and 10.44 respectively. This warrants the significance of fertilization for sustaining soil quality of the Mollisol.

关 键 词：施肥 黑土 活性有机碳 碳库管理 管理指数 影响因素 土壤肥力 土壤质量 

分 类 号：S153.621[农业科学—土壤学]