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莱州湾南岸不同土地利用和土地覆被下土壤盐分含量特征
引用本文:马恭博,;刘文全,;于洪军,;徐兴永.莱州湾南岸不同土地利用和土地覆被下土壤盐分含量特征[J].海岸工程,2014(2):58-65.
作者姓名:马恭博  ;刘文全  ;于洪军  ;徐兴永
作者单位:[1]国家海洋局第一海洋研究所,山东青岛266061; [2]国家海洋环境监测中心,辽宁大连116023
基金项目:海洋公益性行业科研专项经费项目——环渤海区域海水入侵、土壤盐渍化预警与防控关键技术研究示范(201105020);山东省科技发展计划项目——黄河三角洲土壤盐渍化时空变异性及土壤退化机(2013GHY11518);国家海洋局海域管理技术重点实验室基金——莱州湾南岸多尺度土壤水盐时空变异性研究(201308)
摘    要:运用经典统计学和地统计学的方法研究了莱州湾南岸地区不同土地利用和土地覆被下土壤盐分含量的特征及分布情况。研究结果表明:不同空间位置不同层位的土壤盐分含量差异性较大;土壤盐分含量表现出盐田>棉花>林地>杂草>大豆>玉米的现象;除林地60~90 cm土壤盐分变异系数具有强变异外,其它各层土壤盐分含量均具有中等变异性;表层土壤盐分含量具有中等空间自相关性,其它土层土壤盐分含量具有强的空间自相关性;研究区各层土壤盐分的空间分布均表现出条带状和斑块状格局,以轻盐渍化和中度盐渍化为主。

关 键 词:莱州湾南岸  土地利用  土地覆被  盐分  空间分布

Characteristics of Soil Salinity Under the Cases of Different Land Use and Land Covers in the Southern Coastal Area of the Laizhou Bay
Institution:MA Gong-bo , LIU Wen-quan , YU Hong-jun , XU Xing-yong (1. The First Institute of Oceanography, SOA, Qingdao 266061, China; 2. National Marine Environmental Monitoring Center, SOA, Dalian 116023, China)
Abstract:The characteristics and distributions of soil salinity under the cases of different land use and land covers in the southern coastal area of the Laizhou Bay are studied by using both the classical and the geological statistics.The results reveal that the soil salinity differs distinctly at different positions and in different layers.The salinity of the soils increases in the order of salt-land〉cotton-land 〉 wood land 〉 weed land 〉 soyland 〉 corn-land.The variation coefficients of the soil salinity in all layers of the lands are moderate,except for the woodland in which the 60-90 cm layer varies strongly.The salinity of the surface soils shows a moderate spatial autocorrelation,whereas other layers of the soils show a strong one.The distributions of the soil salinity in different layers in the study area generally show a band- and/or a patchy-like pattern,which is dominated with slight and moderate salinization.
Keywords:southern coast of the Laizhou Bay  land use  land cover  salinity  spatial distribution
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