黄河和渤海双重作用下土壤特性空间变异的研究——以垦利县为例  

Spatial variability of soil features under the double actions both of Yellow River and Bohai Sea—A case study with Kenli City

作　　者：李海龙[1] 李新举[1,2] 刘雪冉[1] 李兵[1] 

机构地区：[1]山东农业大学资源与环境学院,山东泰安271018 [2]中国矿业大学(北京)土地复垦与生态重建研究所,北京100083

出　　处：《安全与环境学报》2009年第4期91-94,共4页Journal of Safety and Environment

摘　　要：研究黄河和渤海对沿岸土壤养分和盐分的影响及原因。采用GPS定位技术,采集了139个剖面点的土样,选取81个具有代表性的样点,根据样点与黄河和渤海距离的不同设置6条样线。通过DPS统计软件对土壤中有机质、碱解N、速效P、有效K和盐分含量进行统计分析,结果表明,黄河和渤海对沿岸土壤的养分和盐分含量都存在影响,即土壤盐分总体上随着与黄河距离的增加而增加,随着与渤海距离的增加而减少;土壤有机质、碱解N、有效P含量的变化趋势基本一致,即随着与黄河距离的增加而降低。由于黄河三角洲土壤的特殊成因,土壤速效K含量的变化与其他土壤养分不同,但与土壤盐分相似。The present paper is aimed to introduce our investigative study on the changing variability of the soil characteristic features under the double actions both of Yellow River and Bohai Sea by taking Kenli City as a case study. For this purpose, we have chosen 81 sampling points from the 139 available, composing six lines according to the distance from the Yellow River and Bohai Sea by using the GPS technology. To be exact, the points are chosen by positioning the set line H - 1, H - 2, H - 3 parallel to the Yellow River and that of B - 1, B -2, B -3 perpendicular to the River. The statistic and analytic results of the content of soil organic matter, alkali-soluble N, available P, effective K and salt are calculated by DPS. Furthermore, the affecting degree of the Yellow River and Bohai Sea to the soil＇ s nutrient content has also been put into the study sphere. The results of our investigation indicate that both Yellow River and Bohai Sea are in a position to produce varying effects on the soil＇s nutrient and salt content. Specifically speaking, the content of salt in the soil proves to increase gradually as the increase of the distance from the Yellow River. However, the further the distance from the Bohai Sea, the lower the salt content and the more abundant organic matter content the soil may have. On the other hand, the alkab-soluble N and the available P contents are found declining with the distance increasing from the Yellow River, and the effective K content has been found declining with the changing of distance from Bohai Sea.

关 键 词：土壤学 土壤养分 土壤盐分 DPS统计分析 空间变异 

分 类 号：S158[农业科学—土壤学]