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在土壤剖面的观察研究中,我们有如下一些体会。1、挖坑与打鑽: 通过这次检查,发现过去工作上的一些缺点,如过去称为集贤系的土壤,调查当时并未发现石灰反应及石灰结核;另外,过去对地下水的观察也不够精确等,都是由于过去挖坑数目较少,过分地依靠螺镟形土鑽,而借助这种土鑽是不能全面观察剖面特性的。如专家指出:在黑钙土型的土壤上,有机质呈舌状淋下,用土鑽观察黑土昼的厚度,是不可能得到正确结果的。
In the observation of the soil profile, we have some experience as follows. 1. Digging and Drilling: Through this inspection, we found some shortcomings in the past such as the soils previously called the Jixian Department. At the time of the investigation, no lime reaction or limestone tuberculosis was found. In addition, previous observations of groundwater Not accurate enough, are due to the previous digging a small number of over-reliance on snail-shaped earth drilling, and with this kind of earth drilling can not fully observe the profile characteristics. As the experts pointed out, on the soil of the Chernozem-type soil, the organism is tongue-drained and it is impossible to get the correct result by using the earth-drilling to observe the thickness of the black earth day.