LEI Ming,LI Chang-xiao,MA Peng,et al.Effects of Different Farmland Use Patterns on Soil Enzymes Activities and Soil Microorganisms in Sloped Farmland on Riverbank Slopes[J].Northern Horticulture,2013,37(11):175-181.
岸坡坡耕地不同耕地类型下土壤酶与土壤微生物的研究
- Title:
- Effects of Different Farmland Use Patterns on Soil Enzymes Activities and Soil Microorganisms in Sloped Farmland on Riverbank Slopes
- 文章编号:
- 1001-0009(2013)11-0175-07
- 分类号:
- S 718.5
- 文献标志码:
- A
- 摘要:
- 以三峡水库岸坡系统中的坡耕地为研究背景，以4种典型的耕地类型（柑橘园、玉米地、胡豆地、弃耕地）为对象，对土壤微生物、土壤酶活性和土壤化学性质及其之间的关系进行了研究。结果表明：全钾、全氮、有效磷、有机质含量在土壤垂直剖面上差异显著，而且，全氮、有效磷、有机质含量在不同耕地类型之间的差异也不显著；有效氮、全磷、速效钾含量及pH在0~20 cm土层的不同耕地类型之间以及在0~20cm土层与在20~60cm土层都基本达到显著水平。细菌、真菌、放线菌数量在土壤垂直剖面上，由上至下呈显著递减趋势；三大菌群数量在同一剖面不同耕地类型之间差异显著。土壤酶活性在土壤垂直剖面上，除了蔗糖酶活性差异不大以外，过氧化氢酶、脲酶、蛋白酶和磷酸酶活性都基本达到显著差异；而蛋白酶活性在0~40 cm土层中不同耕地之间表现不显著，其它酶活性都有较大差异。三大土壤微生物数量、五大土壤酶活性与土壤化学性质之间相互作用，关系密切。
- Abstract:
- The soil microbial,enzyme activities and chemical properties were studied in four different farmland use types（citrus field,corn field,strictosidine field,abandoned farmland）on riverbank slopes of the Three Gorges Reservoir Regior.The results showed that the content of total potassium,total nitrogen,available phosphorus and organic matter had no significant difference among soil layers.In addition,the content of total nitrogen,available phosphorus and organic matter also had no significant difference among all the farmland use types.In 0~20 cm soil layer,the content of available nitrogen,total phosphorus,available potassium and pH value had significant difference among all farmland use types,and also between 0~20 cm soil layer and 20~60 cm soil layer.The quantity of bacterial,fungi and actinomycetes was not decreased with soil depth,but also among all farmland use types of the same layer.There was a significant difference with the activity of soil catalase,urease,protease and phosphatase among different soil layers,except invertase.But,in 0~40 cm soil layer,the activity of protease didn’t show a significant difference among all farmland use types,but had big difference of other soil enzymes.The quantity of soil microbial,activity of five major soil enzymes and soil chemical properties interacted closely.
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备注/Memo
第一作者简介：雷明(1984-)，男，湖北恩施人，硕士，现主要从事植物生态学及土壤微生物等方面的研究工作。E-mail:leiming8@swu.edu.cn.
基金项目：国家林业公益性行业科研专项资助项目(201004039)；留学回国人员科研启动基金资助项目（教外司留[2010-1561]）；中央财政林业科技推广示范资助项目；联合国开发计划署全球环境基金小额赠款资助项目(CPR/SGP/OP5/CORE/LD/11/04)。
收稿日期： 2013-01-31