荒漠绿洲区不同土地利用方式下土壤养分差异分析  

Analysis on soil nutrients difference under different land use patterns in desert oasis region

作　　者：王雪梅[1,2] 柴仲平[3] 杨雪峰[1] WANG Xue-mei CHAI Zhong-ping YANG Xue-feng(College of Geography Science and Tourism, Xinjiang Normal University, Urumqi, Xinjiang 830054, China Xinjiang Uygur Autonomous Region key laboratory, Xinjiang Laboratory of Lake Environment and Resources in Arid Zone, Urumqi , Xinjiang 830054, China College of Pratacultural and Environmental Science, Xinjiang Agriculture University, Urumqi, Xinjiang 830052, China)

机构地区：[1]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054 [2]新疆维吾尔自治区重点实验室,新疆干旱区湖泊环境与资源实验室,新疆乌鲁木齐830054 [3]新疆农业大学草业与环境科学学院,新疆乌鲁木齐830052

出　　处：《干旱地区农业研究》2017年第1期91-96,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金“新疆渭干河流域土地利用/土地覆盖生态风险及预警研究”(41261051);国家自然科学基金“塔里木盆地北缘绿洲-荒漠过渡带植被对土壤盐渍化的响应研究”(41561051)

摘　　要：以塔里木盆地北缘荒漠绿洲区(渭干河—库车河三角洲绿洲)为研究对象,对耕地、林地、荒漠灌丛和盐碱草地利用方式下的土壤有机质、全氮、碱解氮、有效磷和速效钾进行了测定及统计分析。结果表明:土壤各养分元素的空间变异性由强到弱的顺序依次为有效磷>碱解氮>速效钾>全氮>有机质;不同土层深度有机质、全氮、有效磷和速效钾含量在不同土地利用方式之间表现出显著的差异(P<0.05),土壤碱解氮含量无显著差异(P>0.05);不同土地利用方式有机质与全氮、碱解氮之间的相关性较强,有效磷与速效钾之间的相关性相对较弱。In northern tarim basin desert oasis region（ Weigan-kuqa river delta oasis） as the research object,through the field sample collection and indoor analysis,soil nutrient elements of different land use patterns（ organic matter,total nitrogen,alkali solution nitrogen,available phosphorus and available potassium） were analyzed,the results show that：（ 1） the spatial variation of the soil nutrient elements from strong to weak order of sequence is available phosphorus 〉alkali solution nitrogen 〉available potassium 〉total nitrogen 〉organic matter.（ 2） under the different soil depth,the contents of soil organic matter,total nitrogen,available phosphorus and available potassium showed more significant difference between the different land use patterns（ P〈0. 05）,while soil alkali solution nitrogen was no significant difference between the different land use patterns（ P〉0. 05）.（ 3） Under the different patterns of land use,the relationships of correlation were strong between the soil nutrient index of organic matter,total nitrogen and alkali solution nitrogen. The relationship of correlation between the available phosphorus and available potassium was relatively weak.

关 键 词：土壤养分 土地利用方式 渭干河-库车河三角洲绿洲 

分 类 号：S158.1[农业科学—土壤学] F301.24[农业科学—农业基础科学]