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日光温室连作黄瓜根区微生物区系及酶活性的变化
引用本文:马云华,魏珉,王秀峰.日光温室连作黄瓜根区微生物区系及酶活性的变化[J].应用生态学报,2004,15(6):1005-1008.
作者姓名:马云华  魏珉  王秀峰
作者单位:山东农业大学园艺学院,泰安,271018
基金项目:国家“十五”科技攻关计划资助项目 ( 2 0 0 1BA5 0 3B0 4)
摘    要:以日光温室黄瓜连作土壤为研究对象,研究不同连作年限根区土壤微生物数量、种类及酶活性的变化,并运用通径分析方法阐明其与土壤主要理化性状的关系,结果表时,土壤微生物数量、酶活性表现明显的温室连作将就;伴随连作年限的增加,土壤微生物总量、细菌、放线菌数均呈倒“马鞍”形变化,真菌数量则呈线性增长、微生物由“细菌型”向“真菌型”过渡,其中氨化细菌和尖孢镰刀菌分别为温室黄瓜连作土壤的优势细菌和真菌生理群;多数土壤酶活性的变化也呈现倒“马鞍”形,通径分析表明,佩量元素(Cu、Mn、Fe)、有机质、速效N、容重为温室连作土壤微生物区系及酶活性的主要影响因素。

关 键 词:温室  连作  微生物区系  酶活性  黄瓜
文章编号:1001-9332(2004)06-1005-04
修稿时间:2003年7月14日

Variation of microflora and enzyme activity in continuous cropping cucumber soil in solar greenhouse
MA Yunhua,WEI Min,WANG Xiufeng.Variation of microflora and enzyme activity in continuous cropping cucumber soil in solar greenhouse[J].Chinese Journal of Applied Ecology,2004,15(6):1005-1008.
Authors:MA Yunhua  WEI Min  WANG Xiufeng
Institution:College of Horticulture, Shandong Agricultural University, Taian 271018, China. yuanyi@sdau.edu.cn
Abstract:Variation of microflora and enzyme activity in solar greenhouse soil continuous cropping for 1,3,5,7,9 years was studied ,in addition to the relationship between soil properities and microflora and enzyme activity.The results showed that number of bacteria,actinomyce as well as total microflora showed a trend with a saddle shaped curve ,while the number of fungi appeared an liner increase.Continuous cropping soil microflora shifed from bacteria type to fungi type significiently,of which Ammoniation bacterium and Fusarium oxysporum were main physiology groups.Path analysis results showed that microelements(Mn,Cu,Fe),organic matter,available N and bulk density are main restricted factors of soil microflora and enzyme activity in solar greenhouse.
Keywords:Solar greenhouse  Continuous cropping  Microflora  Enzyme activity  Cucumber  
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