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首先提出了研究衡山土壤酸化较为科学有效的方法,然后选取衡山不同垂直带谱上5个代表性地点不同年代的土壤样品,实验分析土壤酸度和酸缓冲能力的时空变化,最后得出土壤酸化年限和土壤酸化特点。就Ah层来说,衡山5个代表性地点的土壤酸化年限分别为:上封寺土壤5.2a,南天门土壤5.5a,铁佛寺土壤>100a,半山亭土壤23.7a,玉板桥土壤19.2a。衡山土壤酸化有两个特点:①衡山高海拔和低海拔土壤酸化进程快于中海拔土壤,即“两头快,中间慢”;②衡山土壤酸化是一个由表及里的过程。
Firstly, it is proposed to study the soil acidification of Hengshan Mountain in a more scientific and effective way. Then the soil samples from 5 representative sites in different vertical bands of Hengshan Mountain in different ages were selected to analyze the spatio-temporal changes of soil acidity and acid buffering capacity. Finally, And soil acidification characteristics. For the Ah layer, the soil acidification ages of the five representative sites in Hengshan are: 5.2a in Shangfusi, 5.5a in Nantianmen,> 100a in Tiefusi, 23.7a in Banshan Pavilion and 19.2a in Jubanqiao . There are two characteristics of Hengshan soil acidification: ① Hengshan high altitude and low elevation soil acidification process faster than mid-elevation soil, that is, “two fast, slow middle”; ② Hengshan soil acidification is a table and the process.