摘要
为探索黄河三角洲春秋两季土壤盐分变化,以垦利县为研究区,利用2013年春秋两季Landsat影像,结合野外实测土壤样点与实验室测得土壤含盐量数据,通过遥感技术和统计反演模型,构建土壤盐分定量遥感反演模型,进行土壤盐分空间分布变异及春秋两季土壤盐分的对比分析。通过对原始反射率、反射率线性变换与土壤含盐量进行相关性分析,筛选出土壤盐分敏感波,基于敏感波段建立多元回归模型。研究表明:土壤盐分含量较高的季节集中在春季,而秋季相对低。垦利县土壤盐分含量在靠近海滨地区较为严重,内陆地区的盐碱程度较低,主要影响因素有气候、地表径流等。此研究结果可为研究区盐碱土改良提供数据参考和依据,也对黄河三角洲生态区保护具有重要意义。
During the spring and autumn to explore the Yellow River delta salt change,taken Kenli County as the study area. Used the spring and autumn Landsat images,by remote sensing technology and statistical inversion model,combining with the field measured soil sample,laboratory tests of soil salt data,built the soil salt quantitative remote sensing inversion model. Based on the original reflectance,reflectivity linear transformation and correlation analysis,soil salt content selected soil salt sensitive wave,multiple regression models was built based on sensitive wave band. Research shows that： the reflectivity reciprocal treatment,can improve the correlation. Soil salinity inversion model was urinary polynomial. This study shows that soil salinity higher concentrations in the spring season,autumn is relatively low. Kenli county soil salt content in the near coastal areas salinity is relatively serious,low salinity in the interior. Climate was the major influencing factors,and the other role was surface runoff water,and so on. Finally,the research result can provide reference data for some area saline soil reclamation,also in protection of the Yellow River delta ecological reserve is extremely meaningful.
作者
胡盈盈
王瑞燕
陈红艳
李玉萍
刘燕群
HU Yingying;WANG Ruiyan;CHEN Hongyan;LI Yuping;LIU Yanqun(College of Resources and Environment,Shandong Agricultural University,Taian 271018,China;Institute of Scientific and Technical Information,CATAS / Hainan Provincial Key Laboratory of TropicalCrop Information Technology Application Research,Zhanzhou 571737,China)
出处
《测绘与空间地理信息》
2018年第8期78-81,共4页
Geomatics & Spatial Information Technology
基金
山东省高等学校科技计划项目(J11LC11)
海南省重点研发计划项目(ZDYF2016011)
热带农业大数据研究与服务科技创新团队-热带农业大数据平台构建与共享(1630072017003)资助
关键词
盐分
盐渍土
遥感反演
黄河三角洲
salinity
salty soil
remote sensing inversion
Yellow river delta
