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不同耕作方式和秸秆还田对麦田土壤有机碳含量的影响
引用本文:田慎重,宁堂原,王瑜,李洪杰,仲惟磊,李增嘉.不同耕作方式和秸秆还田对麦田土壤有机碳含量的影响[J].应用生态学报,2010,21(2):373-378.
作者姓名:田慎重  宁堂原  王瑜  李洪杰  仲惟磊  李增嘉
作者单位:山东农业大学农学院作物生物学国家重点实验室,山东泰安,271018
基金项目:国家“十一五”科技支撑计划项目(2006BAD15B07、2007BAD89B09-9); 公益性行业(农业)科研专项(200803028); 山东省资源节约型社会专项(2006JY06)资助
摘    要:通过两个生长季试验,研究了不同耕作方式和秸秆还田及其交互效应对小麦全生育期0~20cm土壤有机碳含量的影响.结果表明:小麦不同生育时期0~20cm土层有机碳含量呈明显的动态变化;秸秆还田各处理的有机碳含量都高于无秸秆还田处理;保护性耕作措施土壤有机碳增加量显著高于传统翻耕.除传统翻耕处理外,各处理0~10cm土层的有机碳含量都高于10~20cm土层,秸秆还田各处理0~10cm土层有机碳含量表现为深松(PS)旋耕(PR)免耕(PZ)耙耕(PH)传统翻耕(PC),而10~20cm土层表现为传统翻耕(PC)深松(PS)旋耕(PR)耙耕(PH)免耕(PZ),说明保护性耕作措施能提高0~10cm土层的有机碳含量.多因素方差分析表明:耕作因素、秸秆因素和两者交互效应在不同生育期对0~20cm土层的有机碳含量都有显著影响.

关 键 词:保护性耕作  秸秆还田  土壤有机碳冬小麦

Effects of different tillage methods and straw-returning on soil organic carbon content in a winter wheat field
TIAN Shen-zhong,NING Tang-yuan,WANG Yu,LI Hong-jie,ZHONG Wei-lei,LI Zeng-jia.Effects of different tillage methods and straw-returning on soil organic carbon content in a winter wheat field[J].Chinese Journal of Applied Ecology,2010,21(2):373-378.
Authors:TIAN Shen-zhong  NING Tang-yuan  WANG Yu  LI Hong-jie  ZHONG Wei-lei  LI Zeng-jia
Institution:State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an 271018, Shandong, China
Abstract:A two growth seasons experiment was conducted to study the effects of different tillage methods,straw-returning,and their interaction on the dynamic change of organic carbon content in 0-20 cm soil layer during the whole growth period of winter wheat.An obvious change was observed in the soil organic carbon content.Treatments with straw-returning had higher soil organic carbon content than treatments with no straw-returning,and conservation tillage induced higher soil organic carbon content than conventiona...
Keywords:conservation tillage  straw-returning  soil organic carbon  winter wheat
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