一种测定土壤崩解动态的方法

Method to Show Dynamic Process of Soil Disintegration

土壤崩解性是土壤抗侵蚀能力研究的重要内容。蒋定生设计的土壤崩解仪,极大地促进了土壤崩解研究进程,但在实际应用中,存在浮筒校正难、不能完全反映土壤崩解的动态过程等问题。针对原有测试方法中存在的局限性,本文在北川震裂带土壤抗侵蚀能力测试研究中,提出了一种改进的土壤崩解性测试方法,改进后的测试方法操作简单、应用范围广,且能比较准确地反映整个崩解动态过程,崩解系数计算物理意义明确,并且可以根据实验需求设置相应的测试精度。

Soil disintegration is one of very important section in soil erosion study and the testing instrument of soil disintegration developed by Jiang Ding-sheng has facilitated and pushed soil erosion study greatly, however, it has some disadvantages, such as unable to reflect the dynamic process of disintegration which leads to lose the optimal observation chance of soil disintegration because it needs time to adjust water level at the beginning of the experiment. Based on the long time researching work of the soil resistance to erosion in Beichuan rupture zone, the method was improved and a new equipment was designed to recognize soil disintegration process. The new method could be widely used to help us to study the disintegration dynamics with higher convenience and efficiency. Moreover, the formulation which demonstrated the amount of the disintegrated soil has a firm physical foundation, and scholars could set up the experiment accuracy by changing balance.