观测剖面 meaning in English

observed profile

To study the effects of preferential flow on infiltrated flow and surface runoff in the granite area of the three gorges , yangtze river , china , a soil profile that is not seriously disturbed by human activities was selected in the quxi watershed of the area as a field experimental site
摘要为研究长江三峡花岗岩地区优先流对渗流和地表径流的影响，以长江三峡地区曲溪小流域作为试验用地，选择适当的土壤剖面作为观测剖面。