黄河三角洲不同土地利用方式对土壤的改良效应  

Effects of Soil Amelioration by Different Land Use Types in Yellow River Delta

作　　者：刘庆[1] 吕振江[2] 郑文爽[3] 张银君[4] 

机构地区：[1]滨州学院山东省黄河三角洲生态环境重点实验室,山东滨州256603 [2]西北农林科技大学林学院,陕西杨陵712100 [3]东北林业大学生命科学学院,黑龙江哈尔滨150040 [4]菏泽市国土资源局,山东菏泽274000

出　　处：《土壤通报》2011年第2期262-266,共5页Chinese Journal of Soil Science

基　　金：十一五"国家科技支撑计划项目(2009BADB2B05);山东省自然科学基金项目(ZR2009BL003);滨州学院博士研究生奖励基金(2007Y07)项目资助

摘　　要：通过对黄河三角洲地区棉田、果园、林地和荒地4种不同土地利用方式下土壤样品的采集与理化指标的分析,研究了该区域不同土地利用方式对轻度盐渍化土壤的改良功能。结果显示:果园土壤的容重、pH值和全盐含量等物理性状要优于其它3种用地方式;棉田土壤有机质与全N、全P和全K含量超过果园与林地土壤,而速效N和速效P含量以果园土壤最高,速效K含量以棉田最高,果园土壤最低;果园土壤C/N比值明显高于其它3种用地方式,以荒地土壤的C/N比值最低。综合分析认为:种植果树对土壤的物理性状改良效果较好,种植棉花对土壤的化学性状具有较好的改良效果。Though Sampling from cotton fields,orchards,forestland and wasteland soils and analyzing the physico-chemical indices,the effects of soil amelioration of these four different land-use types were studied on slight salinization soil in Yellow River Delta.The results showed that physical properties such as bulk density,pH and the content of salt of orchards soils were better than the other three types,the contents of soil organic matter（OM）,total nitrogen（TN）,total phosphorus（TP） and total potassium（TK） in cotton fields exceeded the orchards and forestland soils,the highest content of available N and available P was in orchards soils but the highest available K in cotton soils,the lowest available K was in orchards soils,the C/N ratio of the orchard soils was significantly higher than other land-use types and the lowest ratio is in wasteland soils.So planting fruit trees could have better effects of soil amelioration on soil physical properties and cotton cultivation could have better effects on soil chemical properties

关 键 词：土地利用方式 土壤改良 理化指标 黄河三角洲 

分 类 号：S156.91[农业科学—土壤学]