土壤剖面中a层的流失是土壤养分流失的标志。
A layer loss in soil profile is a sign of soil nutrient loss.
但其面积(体积)、地层厚度、各标志层的长度在变形前后保持相等，即变形前后的剖面是平衡的。
But the area, bed thickness and marker bed length remain unchanged; that is to say, the geological section keeps balanced before and after deformation.
在此基础上，研究相标志，进行14条单剖面的沉积相分析和7条控制全区的沉积相对比大剖面分析。
Sedimentary facies marks are researched on the basis, 14 sections of facies analysis and 7 bars great sections of facies comparing analysis are made for controlling total area.
应用推荐