辽东半岛丘陵区土地利用方式对土壤特性的影响

Effects of Land Use on Soil Properties in Hilly Area of Liaodong Peninsula

土壤理化性质是影响土壤肥力的内在因素,是综合反映土壤质量的重要组成。在母质、气候、生物条件基本一致的区域内,土壤性质主要受人类活动的影响。本文采用从熊岳镇杨运乡南岔村境内带回土样的实验数据,利用标准差、变异系数等数学方法对区域内三种不同利用方式的土壤进行了特性对比。研究表明,在相同母质等其他条件下,不同土地利用类型,土壤特性有所差异:林地受人为因素干扰最小,土壤吸湿水、有机质和全磷含量充足,土壤肥力相对较好;果园和耕地属于掠夺式开发利用地,枯枝落叶回归土壤较少,导致有机质含量较低,同时由于经济效益不同,农户对土壤的投入不同,导致果园全磷含量高于林地,耕地全磷含量与林地持平。

Soil physical and chemical properties are the intrinsic factors that affect soil fertility and are an important component of soil quality. In the area where the parent material, climate and biological conditions are basically the same, the soil properties are mainly affected by human activities. In this paper, the experimental data were collected from the soil samples of Yangyun Township,Xiongyue Town, and the soils of three different soils were compared by standard deviation and coefficient of variation. The results showed that the soil characteristics were different under different conditions such as the same parent material： the woodland was the least affected by the human factors, the soil moisture, organic matter and total phosphorus were abundant, the soil fertility was relatively good; the orchard and the cultivated land belonged to the total phosphorus content of the orchard is higher than that of the woodland, and the total phosphorus content of the cultivated land is flat with the cultivated land. The total phosphorus content of the orchard is higher than that of the forest land.