宁夏贺兰山东麓酿酒葡萄园土壤酶活性分析

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1、搴丁酉夏山东麓酿酒葡萄园土壤酶活性分析※贺沙海宁，孙权，，周明，王振平一，王国珍，张晓娟，郭洁(1．葡萄兰与葡萄酒教育部工程研究中心，银川750021；2．宁夏大学农学院，银川750021；3．宁夏农林科学院，银川750001)摘要：调查了宁夏御马葡萄基地不同栽培年限土壤蔗糖酶、磷酸酶、脲酶、过氧化氢酶活性，并与土壤基本理化性质进行了回归分析。结果表明，供试土壤有机质、全氮、铵态氮、速效磷、阳离子代换量大都处于最低的6级水平；随栽培年限的延长，肥力水平显著增加，表层土壤磷酸酶、蔗糖酶和脲酶活性显著增加；蔗糖酶、脲酶活性随剖面深度的加深而显著减小；表土过

2、氧化氢酶活性随栽培年限的延长而显著下降，但不同土地表层以下各层次土壤过氧化氢酶活性总体上高于表层，且差异显著。磷酸酶、蔗糖酶和脲酶活性与土壤有机质、全氮、全磷、速效磷、缓效钾、速效钾之间存在着极显著相关关系；脲酶与磷酸酶，以及脲酶与蔗糖酶之间存在极显著相关关系。由此表明，磷酸酶、脲酶、蔗糖酶活性的大小可以表征宁夏贺兰山东麓酿酒葡萄栽培区土壤肥力的高低。关键词：土壤酶活性；肥力；酿酒葡萄；宁夏中图分类号：S154．2文献标识码：AEnzymeactivityofwinegrapeplantingsoilattheeastemfootofHelanmoun

3、taininNingxiaShaHaining，SunQuan'，ZhouMing‘，WangZhenping，WangGuozheng，ZhangXiaojuan，GuoJie(1．GrapeandWineEngineeringResearchCenterofEducationMinistry,Yinchuan750021；2．AgricultureCollege，NingxiaUniversity,Yinchuan750021；3．NingxiaAcademyofAgricultureandForestry,Yinchuan750001)Abstr

4、act：Theactivitiesofinvertase，phosphatase，urease，andcatalaseinthesoilsunderdiferentplantingconditionsattheeast—footofHelanmountaininNingxiawereinvestigatedandregressionanalysiswithsoilphysio—chemicalpropertiesweredone．Theresultsindicatedthatalltheinvestigatedsoilholdstrongalkalin

5、ereaction．pHandtotalsaltswereinsignificantlyafectedbycultivationandfertilization．Theorganicmatter,totalN，availableN，availablePandcationexchangecapacityweFeinthelowestlevels．However,theircontentsincreasedalongwithprolongedcultivationyears，andtheactivitiesofphosphatase，invertasean

6、dureaseactivitiesintopsoillayersignificantlyincreasedtoo．Theactivitiesoftheseenzymesdecreasedobviouslywithdepthofthesoillayers．Oppositetrendswereobservedforcatalase．Thereweresignificantpositivecorrelationsbetweenphosphatase，urease，invertaseactivitiesandorganicmatter,totalN，total

7、P，availableP'aswellasavailableK．Significantpositivecorrelationbetweenphosphataseandureaseaswellasbetweenureaseandinvertasewerealsoobserved．Therefore，thelevelsofphosphatase，urease，invertaseactivitiescanbeusedasindicatorsfortheevaluationofthefertilityofwinegrapeplantingsoilineast-

8、footofHelanmountaininNingxia．Keywords：soilenzym