黄河三角洲垦利县10 a土壤盐分时空变化研究  

Spatial and Temporal Variation of Soil Salinity in Kenli County of the Yellow River Delta Area in Recent Ten Years

作　　者：张晓光[1,2] 赖红羽[1] 李旭霖 李士美[1] 崔德杰[1] ZHANG Xiaoguang;LAI Hongyu;LI Xulin;LI Shimei;CUI Dejie(College of Resources and Environment, Qingdao Agricultural University, Qingdao 266109, China;State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China)

机构地区：[1]青岛农业大学资源与环境学院,山东青岛266109 [2]土壤与农业可持续发展国家重点实验室,江苏南京210008

出　　处：《人民黄河》2019年第4期64-68,共5页Yellow River

基　　金：国家自然科学基金资助项目(41601211);山东省重点研发计划项目(2017CXGC0303);土壤与农业国家重点实验室开放基金资助项目(Y20160007);青岛农业大学高层次人才启动基金资助项目(1114344);国家级大学生创新训练计划项目(201710435074)

摘　　要：以黄河三角洲典型县域垦利县为研究区,通过野外调查采样,利用GIS技术研究了2007—2016年土壤盐分时空变化情况,结果表明:研究区2007—2016年土壤盐渍化具有强烈的变异特点,10 a间不同盐渍化程度的土地面积变化明显;非盐渍化土壤面积变动轻微,中度和重度盐渍化土壤面积降低了39.27%,轻度盐渍化土壤面积增加了10.03%,盐土面积也显著增加;盐渍化程度明显减轻的区域主要分布在垦利县中部和东南部,盐渍化程度明显加重的区域主要分布在垦利县西南、中南和东部区域;盐渍化程度变动与近年来秸秆还田、海水浸润、土地利用方式改变等有很大关系,可以根据土壤的水盐状况来调整土地利用方式,有效、合理利用盐渍化土地。In order to improve the level of management and utilization of the coastal salinization land, its variation character of temporal and spatial should be grasped. Kenli County of the Yellow River delta was chose, the temporal and spatial variation were studied during recent 10 years from 2007 to 2016 by GIS technology. The results show that study area has strong soil salinization variation characteristics both of the two periods in the study area and different levels of salinization land area have been changed a lot in the past 10 years. The non-salinization land area is changed slightly, moderate salinization and severe salinization land area are reduced by 39.28%, mild salinization land area is increased by 10.03% and the data also shows that the area of the salt land has been increased. The area of soil salinity degree is significantly decreased mainly distributed in the central and southeast of Kenli County, which it has a great relationship with the straw utilization and rice farming. The area of soil salinity degree is significantly increased mainly distributed in the southwest, south-central and east of Kenli County, which it has a great relationship with sea water infiltration and land use pattern changes. Thus it can be adjusted in the way of land use according to the condition of soil water and salt, for effectively and reasonablely utilizing salinization land.

关 键 词：土壤盐渍化 土壤电导率 土地利用方式 黄河三角洲 

分 类 号：TV213[水利工程—水文学及水资源] S156[农业科学—土壤学]