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保护性耕作对土壤微生物特性及酶活性的影响 被引量:93

Effects of Conservati on Tillageon Soil Microbial Characters and soil Enzyme Activities
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摘要 大田试验研究了保护性耕作对土壤微生物量、活跃微生物量、土壤呼吸、呼吸商、土壤酶的影响。结果表明,秸秆还田能够显著提高土壤微生物量碳和活跃微生物量,深松耕还田能显著提高土壤活跃微生物量。随耕作作业之后时间的推迟,活跃生物量减小。秸秆还田初期(小麦越冬期)能显著提高土壤呼吸作用,提高99.7%;后期(小麦播种期)能显著降低土壤呼吸,降低16.6%。随耕作作业之后时间的推迟,秸秆还田和保护性耕作都会减少农田向大气中CO2的排放,减少土壤碳库的亏损。深松耕还田显著提高土壤脲酶、蔗糖酶活性。土壤呼吸和土壤活跃微生物量是衡量土壤微生物特性和土壤酶的较好指标。 Effects of conservation tillage on soil microbiomass, active soil microbiomass, respiration quotien,and enzyme activities were studied by field experiment. Results showed that straw returning could significantly increase soil microbial biomass and active microbiomass. Subsoiling with straw returning could siginificantly active microbiomass. The longer time after tilth,the smaller active soil microbiomass. Straw returning could increase soil respiration by 99.7% in the earlier stage(over-wintering stage) and reduce soil respiration by 16.6% in the later stage (seeding-sprouting stage). Compared with conventional tillage with no straw returning,conservation tillage could increase soil respiration in the earlier stage after tillage and reduce soil respiration in the later stage and reduce the loss of soil carbon, of which rotary tillage with straw returning was the best. Subsoiling returning could significantly increase soil urease activity and sucrase activity. Soil respiration and active microbiomass were good indexes of soil microbial characters and soil enzyme.
作者 王芸 韩宾 史忠强 邵国庆 江晓东 宁堂原 焦念元 李增嘉 WANG Yun, HAN Bin, SHI Zhong-qiang, SHAO Guo-qing, JIANG Xiao-dong, NING Tang- yuan, JIAO Nian-yuan, LI Zeng-jia (1. Agronomy College of Shandong Agriculture University, Key Labrotory of Crop Biology of Shandong, Taian 2710181 2. College of Agronorny,Henan University of Science & Technology, Luoyang 471003)
出处 《水土保持学报》 北大核心 2006年第4期 120-122,142,共4页 Journal of Soil and Water Conservation
基金 国家粮食丰产工程“华北平原山东省保护性耕作集成与示范”(2004BA520A14C10)
关键词 保护性耕作 微生物量碳 活跃微生物量 土壤呼吸 土壤酶 conservation tillage soil microbiomass C active microbiomass soil respiration soil enzyme
作者简介 王芸.女.生于1982年,硕士,研究方向为农业生态。 通讯作者Email:lizj@sdau.edu.cn
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  • 1高云超,朱文珊.土壤微生物生物量周转的估算[J].生态学杂志,1993,12(6):6-10. 被引量:57
  • 2高云超,朱文珊.秸秆覆盖免耕土壤微生物生物量与养分转化的研究[J].中国农业科学,1994,27(6):41-49. 被引量:120
  • 3林心雄 程励励 等.田间测定植物残体分解速率的砂滤管法[J].土壤学报,1981,18(1):97-102. 被引量:20
  • 4陈文新.土壤与环境微生物学[M].北京:北京农业大学出版社,1990.. 被引量:4
  • 5林葆 林继雄 李家康.从肥料长期试验看平衡施肥的重要性[A]..中国平衡施肥计划会议Ⅱ[C].加拿大钾肥公司,1996.41-56. 被引量:1
  • 6黄东迈 高家骅 朱培立.有机、无机肥料氮在水稻-土壤系统中的转化与分配[J].土壤学报,1981,18(2):107-121. 被引量:6
  • 7中国气象科学院农业气象研究所.中国主要农作物气候资源图集[M].北京:中国气象出版社,1984.1-42. 被引量:1
  • 8Wang Q (王谦).Analyses and evaluation of agro-climate resources in Dingxi County of Gansu Province[J].Agric Res Arid Areas(干旱区研究),1988,2(1):69-74. 被引量:1
  • 9张成娥 刘国彬 陈小利.Micro-organism.enzyme activities and biomass in soils in hillside fields under varied patterns of land use[J].J Soil Sci(土壤科学),1999,30(3):101-103. 被引量:1
  • 10[1]Baath E, Arnebrant K. 1994. Growth rate and response of bacterial communities to pH in limed and ash reated forest soils. Soil Biol Biochem, 26 (8): 995 ~ 1001 被引量:1

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