This somber prediction comes out of the latest findings of the large scale biosphere / atmosphere experiment in amazonia , the most ambitious field project ever done in a tropical ecosystem 亚马逊地区大尺度生物圈与大气圈试验是目前在热带生态系进行的最大型研究计画，科学家根据他们最新的研究结果，做出了上述令人担忧的预测。
Earth ' s atmosphere , hydrosphere , lithosphere , and forms of life are continually changing in response to changes in solar input , movements of earth ' s crust , other natural changes , and changes brought about by humans and other living organisms ( dynamic - earth principle ) 地球的大气圈、水圈、岩石圈、及生物界一直持续在改变中，以回应太阳输入能量的变化、地壳的飘移、及其它各种自然环境的变化，以及因人类与各种生物引起的改变。
The global environment consists of the atmosphere , the hydrosphere , and the lithosphere , a mixture of gases extending outward from the surface of the earth , evolved from elements of the earth that were gasified during its formation and the shallow ground water bodies that interflow with the surface water 全球的环境包括大气圈、水圈和岩石圈以及从地球表面延伸出来的混合气体，这种气体形成时由地球表面的元素气化或浅层地下水与地表水的交流。
Formation and change of ancient lakes are the results from the interaction of atmosphere , hydrosphere , biosphere , lithosphere and the activities of human beings . so by the study on formation and change of ancient lakes , general picture of environmental evolvement in the studied area can be revealed 古湖泊的形成与演变是大气圈、水圈、岩石圈、生物圈以及人类活动综合作用的结果，因此通过研究古湖泊的形成与演变能够揭示该区环境演变的特征。
Through tens of years of human industrial activities , huge amounts of heat - trapping gases have been releasing to the atmosphere through the exhausts of power generation stations , factories , automobiles , etc . these gases , together with the chemical compounds and refrigerants that belong to the chlorofluorocarbons ( cfcs ) , have been causing our environment serious damages 人类数十年的工业生产，通过电站，工厂，汽车等向大气中排放了大量的温室气体。这些工业气体加上制冷机械中使用的氟利昂气体对地球环境造成了严重的危害。全球变暖以及大气圈臭氧层的破坏仅仅是其中的两个例子，环境问题的重要性和紧迫性有目共睹。
But it is mainly drived by the karst dynamic system centered on the cycle of co2 - water - calcium . as one part of karst ecosystem , epikarst ecosystem is composed of rock , water , vegetation , soil , and atmosphere . it is sensitive to the global carbon cycle in quaternary , especially in late holocene 作为岩溶生态系统的一部分? ?表层带岩溶生态系统是由岩石、水、植被、土壤及其上的大气构成，与大气圈、生物圈直接联系，对全球第四纪尤其是全新世晚期碳循环表现出灵敏的响应。
Based on comprehensive analysis above , the dissertation puts forward the idea that desertification is a complicated geological phenomena caused by the complex interaction of the earth ' s layers during the course of geoevolution . natural factors play a dominant role during the course of desertification evolution 在以上综合分析基础上，论文从理论上阐述了土地荒漠化是地球演化过程中的一个地质事件，是岩石圈与大气圈、生物圈和水圈强烈作用在地壳表层特殊(异常)的复杂的地质现象。
