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通过在2010年对重庆武隆芙蓉洞上覆土壤带的定点监测,收集土壤渗透水,结合当地气温、降水量、土壤地球化学组成和土壤粒度组成,探讨气候条件和土壤层对渗透水中Ca,Mg和Sr元素浓度以及Mg/Ca,Sr/Ca和Mg/Sr比值的影响.数据显示土壤渗透水量可以快速反映地表降水量的变化,冬季和春季时(旱季)土壤渗透水在土壤中滞留时间延长是导致Ca,Mg和Sr浓度在4月出现高值的主要因素.土壤渗透水中Mg/Ca比值随着土壤渗透水滞留时间的延长和温度升高而升高,而Sr/Ca比值与降水量和气温的关系不明显.植物生长活动对Ca和Mg元素的吸收强度大于对Sr元素的吸收,并且Mg的溶蚀能力相对于Sr更易于响应温度的升高,由此导致Mg/Ca与Sr/Ca比值之间呈现反相关关系.冬春旱季时土壤渗透水在土壤中滞留时间的延长导致了Mg/Sr比值在4月出现高值;而Mg/Sr比值在7月和8月出现高值则是因为在温度升高的情形下渗透水对Mg的溶蚀相对于Sr更强.
Through the monitoring of the overlying soil zone in Furong Cave in Wulong, Chongqing in 2010, the seepage water was collected, and combined with the local air temperature, precipitation, the geochemical composition of the soil and the granularity of the soil, the effects of climatic conditions and soil layers on the Ca, Mg and Sr, and the ratio of Mg / Ca, Sr / Ca and Mg / Sr. The data show that the infiltration capacity of soil can quickly reflect the change of surface precipitation, and the retention time of soil infiltration water in soil in winter and spring (dry season) Prolongation was the main factor leading to the high Ca, Mg and Sr concentrations in April. The Mg / Ca ratio in soil infiltrated water increased with the prolongation of soil infiltration water retention time and temperature, while the ratio of Sr / Ca to precipitation The relationship between quantity and temperature was not obvious.The plant growth activity had stronger absorption of Ca and Mg than that of Sr and the dissolution ability of Mg was more likely to respond to the increase of temperature than Sr. As a result, Mg / Ca and Sr / Ca ratio.The relationship between the Mg / Sr ratio and the Mg / Sr ratio was high in April and the Mg / Sr ratio was high in July and August The value is because of the temperature Water penetration dissolution of Mg is high with respect to the case where Sr stronger.