洞穴新生碳酸钙模拟沉积速率的理论及展望

Simulation Theory of Stalagmite Growth Rate and The Perspective

新生碳酸钙沉积(生长)速率是洞穴中的重要环境气候指标,深入研究有助于协调洞穴旅游与洞穴景观保护的矛盾。本文通过引入洞穴碳酸钙模拟沉积速率的概念,并对其理论背景进行了详细的介绍,碳酸钙模拟沉积速率的获得以洞穴滴水中Ca2+、空气温度、空气PCO2以及洞穴滴水速率的准确测定为理论依据,在植被覆盖率高、环境气候状况良好的洞穴系统中,新生碳酸钙具有较为稳定的生长速率,石笋生长的可预测性较好,而当洞穴滴水中掺杂较多的异类离子、洞穴滴水位置较高(具有较高的能量)和洞穴滴水滴速较慢(慢于0.01滴/s)时,模拟值就不能完全的反映出石笋真实生长情况。本文指出应加强相关研究,打破简单环境气候参数模拟的局限性,构建多环境气候参数下的生长速率模拟,提高生长速率模拟值的准确性。

The growth rate of stalagmite is a significant proxy of environmental climatic in cave,the research of the growth rate help to coordinate the clash between tourism developing and karst landscape recovering in cave. The review is mainly to bring in the concept of the modeled growth rate of modern stalagmite and describe the theoretical background in detail. The theory of the modeled growth rate based on the calcium in drip,temperature of atmosphere in cave,PCO2 and the rate of drip. Even though the growth rate can’t predict precisely when high content of foreign-ion within the drip,the location of driphigh off the ground which means the drip was more energy,and the rate of drip is slow,which slower than 0. 01 drip/s,the growth rate can predict the real situation well when the stalagmite can grow steady in the cave system with the healthily environmental,climatic condition and high coverage of bush. The author insist strengthen relevant research to break the through defection of simple environmental and climatic parameters and construct a more precise modeled growth rate of stalagmite base on more environmental and climatic parameters and eventually create a new prospect of the Cave’s research.