根据罗家坳河间地块岩溶系统的动态观测资料计算，得到了研究区不同部位的地表及地下水对碳酸盐岩的溶蚀量和ＣＯ２的吸收量。计算结果表明：（１）分水岭以西岩溶作用的强度要大于分水岭以东；（２）白云岩的溶蚀量要大于方解石的溶蚀量；（３）地下水的溶蚀强度大于地表水的溶蚀强度，但这并不意味着地下水的溶蚀量（或溶蚀模数）就大于地表水的溶蚀量（或溶蚀模数），后者还与流量有关。 According to the dynamic observation data of the Karst System in the Luohe Au Heterogene block, the dissolution and CO2 uptake of carbonate rocks by surface and groundwater in different parts of the study area are obtained. The results show that: (1) the intensity of karstification to the west of the watershed is greater than the east of the watershed; (2) the dissolution of dolomite is greater than the dissolution of calcite; (3) the dissolution strength of groundwater is greater than that of surface water, It does not mean that the amount of erosion (or dissolution modulus) of groundwater is greater than the amount of erosion (or erosion modulus) of surface water, which is also related to the flow rate.