大板桥下岗大村地表岩溶发育特征及控制因素

Controlling Factors and Characteristics of Ground Surface Karst in Xiagangda Village Dabanqiao Town

漏斗是本区发育的主要岩溶地貌,它们的平均面积为9 812 m2,总面积达461 179 m2,占研究区面积的18%,长轴平均长120 m,发育密度为18.1个/m2。岩性、节理、地形、断层控制了本区地表岩溶的发育,与周边地区对比,本区节理对地表岩溶的控制作用明显。

The funnels are the main karst landform in this area ,the average area of them are 9 812 m^2 ,the total area is 461 179 m^2 which is 18% of the study area , the average main axis is 120 m in length , the density is 18.1/km^2. The litholngy,joint, topography, fault have controlled the growth of the ground surface karst . Compared with the neighhour area, the joint controlling the ground surface karst is more obviously, and the growth of the ground surface karst is not inferior to it.