浅析武夷山山地土壤理化性质的垂直分异

土壤的理化性质反映了土壤在物理和化学方面的特征,它直接影响着土壤的肥力大小,成为评价一个地区土地初级生产能力的重要指标.研究针对武夷山地区6个典型土壤剖面,通过野外调查取样和室内理化分析方法,对6个剖面土壤基本性状进行测定、对比分析.结果发现,武夷山山地土壤理化性质在垂直高度上呈现明显的地区分异：1）随着海拔的逐级递增,土壤A发生层厚度也随之递增;2）根据前苏联土壤质地分类,武夷山山地土壤总体上是属于壤土,但各个剖面由于成土环境的不同,土壤质地仍存在着一定的差异性.随着海拔的逐级递增,土壤质地从中壤土向轻壤土、砂壤土逐渐过渡;3）武夷山山地土壤的pH值大致在4.2~4.5范围内,其土壤类型属于强酸性土类;4）土壤有机质质量分数总体上也随着海拔的逐级递增而增加.

Analysis on the Vertical Differentiation of Physical and Chemical Properties of Mountain Soil in Wuyi Mountain

The physical and chemical properties of soil reflects the soil in the area of physical and chemical characteristics, it has a direct impact on soil fertility size, to become a regional evaluation of the initial production capacity of the land as an important indicator. Through the methods of field investigation and sampling, and indoor physical and chemical analysis, the research did the determination and comparative analysis on the contents of basic traits of 6 soil profiles. The results showed that there are significant differences of the physical and chemical properties of mountain soil on the vertical height in Wuyi mountain： 1）With the increased level of elevation,soil thickness A occur also increase ;2）According to the former Soviet Union soil texture classification,the mountain soil of Wuyi mountain on the whole are loam,but soil texture there are still some differences because of the different soil environment in each section. With the elevation of the level increase from loam soil texture to the light loam, loam gradual transition;3） As the pH of the mountain soil of Wuyi mountain is generally in the 4.2- 4. 5 range,the soil type belongs to strongly acidic soils;4）soil organic matter quality score as a whole elevations provide.