基于样带的滨海盐碱地土壤养分和盐分的空间变异

应用生态学报 ›› 2012, Vol. 23 ›› Issue (06): 1527-1532.

基于样带的滨海盐碱地土壤养分和盐分的空间变异

王娜娜,齐伟^**,王丹,秦天天,路超

（山东农业大学资源与环境学院，山东泰安 271018）

出版日期:2012-06-18 发布日期:2012-06-18

Spatial variability of soil nutrients and salinity in coastal saline-alkali land based on belt transect method.

WANG Na-na, QI Wei, WANG Dan, QIN Tian-tian, LU Chao

(College of Resource and Environment, Shandong Agricultural University, Tai’an 271018, Shandong, China)

Online:2012-06-18 Published:2012-06-18

摘要/Abstract

摘要： 在黄河三角洲北部刁口黄河故道盐碱地设置一条南北土壤样带，采用地统计学方法分析土壤养分指标（有机质、全氮、有效磷、速效钾）和全盐含量的空间分布规律及其影响因素.结果表明：研究区土壤有机质、全氮、有效磷、速效钾和全盐含量的块金系数分别为0.38、0.40、0.50、0.32和0.34，5个土壤指标均具有中等的空间相关性；样带上土壤有机质和全氮含量的分布趋势基本一致，土壤速效钾与全盐含量的分布具有很强的相关性，土壤有效磷含量呈波动式的空间分布.综合土壤有机质和全盐含量，将样带土壤划分为盐大肥低型、盐大肥高型、盐小肥高型3种类型.研究区各土壤指标的空间分布格局与成土母质、土地利用方式、距海距离、道路阻隔等因素密切相关.

关键词: 滨海盐碱地, 地统计学, 样带, 土壤养分

Abstract: A north-south transect was established in the saline-alkali land of Yellow River old course at Diaokou of northern Yellow River Delta, Shandong Province of East China to analyze the spatial distribution characteristics of soil nutrients and salinity and related affecting factors by using geostatistics method. In the study area, the nugget/still of soil organic matter, total nitrogen (TN), available phosphorus (AP), and available potassium (AK) contents and soil salinity were 0.38, 0.40, 0.50, 0.32, and 0.34, respectively, which demonstrated that these five parameters were moderately spatial dependence. The soil organic matter and TN contents in this transect had a similar distribution pattern, soil AK content was highly correlated to soil salinity, while soil AP content presented a fluctuated distribution. According to the comprehensive analysis of soil organic matter content and salinity, this transect was classified into three types, i.e., high salinity and low fertility, high salinity and high fertility, and low salinity and high fertility. The spatial distribution pattern of the five soil parameters was closed related to the soil parental material, land use pattern, distance to sea, and road block.

Key words: coastal saline-alkali land, geostatistics, belt transect, soil nutrient.

王娜娜,齐伟**,王丹,秦天天,路超. 基于样带的滨海盐碱地土壤养分和盐分的空间变异[J]. 应用生态学报, 2012, 23(06): 1527-1532.

WANG Na-na, QI Wei, WANG Dan, QIN Tian-tian, LU Chao . Spatial variability of soil nutrients and salinity in coastal saline-alkali land based on belt transect method.[J]. Chinese Journal of Applied Ecology, 2012, 23(06): 1527-1532.

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