四翅滨藜对干旱区内陆盐渍土的改良效应研究  

Effect of Atriplex canescens on Salt-affected Soil Improvement in Arid Region

作　　者：李志强[1] 朱新萍[1] 高文伟[2] 雷钧杰[3] 贾宏涛[1] 吴玉[1] 蒋平安[1] 

机构地区：[1]新疆农业大学草业与环境科学学院,乌鲁木齐830052 [2]新疆农业大学农学院,乌鲁木齐830052 [3]新疆农科院粮食作物研究所,乌鲁木齐830091

出　　处：《新疆农业大学学报》2010年第6期484-488,共5页Journal of Xinjiang Agricultural University

基　　金：新疆维吾尔自治区高校科研计划科学研究青年启动基金项目(XJEDU2007S16);教育部重点项目(209139);国家自然科学基金项目(40901155);新疆农业科学院青年基金项目(2007Q06);土壤学自治区重点学科资助

摘　　要：通过田间试验,采用野外动态监测和室内分析相结合的方法,研究了不同种植年限的四翅滨藜(Atriplex canescens)立地土壤的可溶性总盐含量、有机质、土壤养分、酶活性指标动态特征,结果表明,土壤可溶性盐分总量是随四翅滨藜定植年限的增长而降低;土壤速效磷、土壤全氮、全钾含量随定植年限的增长而降低;土壤有机质、速效氮、速效钾、全磷含量均随四翅滨藜定植年限的增长呈现出先增加后降低的趋势;土壤脲酶和碱性磷酸酶活性随定植年限的增加而增加;过氧化氢酶活性随四翅滨藜定植年限的增加而降低;8月份的酶活性高于4月份的活性。Field test,dynamic field monitoring and lab analysis are used to study the dynamic variation characteristics of the soil where Atriplex canescens is planted for different years,such as total soluble salt content,organic matter,soil nutrients and soil enzyme activity.The result shows that the total soluble salt content decreased with increase of Atriplex canescens planting years,and the available phosphorus,total nitrogen and total potassium decreased with the increase of Atriplex canescens planting years;organic matter,available nitrogen,available potassium and total phosphorus increased at first,and then decreased with increase of Atriplex canescens planting years.The activity of urease and alkali phosphatase in soil increased while catalase deceased with the increase of Atriplex canescens planting years.The enzyme activity of the samples in August is higher than that in April.

关 键 词：四翅滨黎 盐分 有机质 酶活性 

分 类 号：Q949.745.1[生物学—植物学]