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降雨条件下,对贵州中度石漠化地区石将军洞的3个滴水点与洞穴环境进行了短时间尺度监测,探讨其时空变化特征及石漠化效应,结果表明:洞内温度与CO_2体积分数变化趋势受洞外环境变化控制,且滞后性较小.1#监测点上覆土壤较厚,基岩中白云岩的质量分数较高,溶液渗流时间较长,降雨响应慢,连通性较差;2#监测点上覆土壤较薄,基岩中石灰岩的质量分数较高,降雨响应快,连通性好;3#监测点上覆土壤层薄,基岩中石灰岩的质量分数较高且岩层厚度大,降雨响应慢,连通性较好.
Under the conditions of rainfall, the three drip points and the cave environment of Shijiazhuang Cave in moderate rocky desertification area of Guizhou Province were monitored for short time scales to investigate the temporal and spatial variation characteristics and the effect of rocky desertification. The results showed that the temperature and the volume of CO_2 The changing trends of the scores are controlled by the change of the environment outside the cave with less hysteresis.1 The overlying soil in the No.1 monitoring spot is thick, the dolomite mass fraction in the bedrock is high, the solution seepage time is longer, the rainfall response is slower, and the connectivity is more Poor; 2 # monitoring point overlying the soil is thin, the bedrock limestone mass fraction higher rainfall response, good connectivity; 3 # monitoring point overlying the soil layer is thin, bedrock limestone mass fraction higher Rock thickness, rainfall response slow, good connectivity.