CAJ | 학술논문

地球环境的变化直接关系到人类社会的可持续发展,没有对重大地质环境演变规律的全面认识,难以应对当前变化着的气候和环境. 物理、化学与生命运动相互交织的动力学过程共同控制着地球环境的变迁.生命过程如何响应与反馈地球环境的变化,是地球科学领域一个亟待解决的重大科学问题. 距今2 .52亿年二叠纪-三叠纪之交的动物大灭绝,以及大约6亿年前埃迪卡拉纪一系列生物群的出现均显示,大气环境(如温度、氧气含量)、古海洋水化学条件(如缺氧、硫化等)是重大地质突变期直接影响或控制宏体生物的演化与发展的关键环境因素. 重大地质突变期的不同地质微生物功能群不仅灵敏地记录了气候、环境与生态系统的变化乃至太阳活动,而且它们还积极参与地球环境的改造,使地球环境处于一个能够不断自我调节的状态.
지구배경적변화직접관계도인류사회적가지속발전,몰유대중대지질배경연변규률적전면인식,난이응대당전변화착적기후화배경. 물리、화학여생명운동상호교직적동역학과정공동공제착지구배경적변천.생명과정여하향응여반궤지구배경적변화,시지구과학영역일개극대해결적중대과학문제. 거금2 .52억년이첩기-삼첩기지교적동물대멸절,이급대약6억년전애적잡랍기일계렬생물군적출현균현시,대기배경(여온도、양기함량)、고해양수화학조건(여결양、류화등)시중대지질돌변기직접영향혹공제굉체생물적연화여발전적관건배경인소. 중대지질돌변기적불동지질미생물공능군불부령민지기록료기후、배경여생태계통적변화내지태양활동,이차타문환적겁삼여지구배경적개조,사지구배경처우일개능구불단자아조절적상태.
To adapt the changing climate and environment in modern days and in the future , we need fully establish and understand the evolution history of environmental changes in Earth history as major environmental change is known to exert a great impact on the sustainable de-velopment of our human society .It is known that the coupling dynamics of physical , chemical and biotic processes control the environmental changes , among which the responses and feedbacks of organisms to envi-ronmental changes are critical issues to be deciphered in geosciences . Here we investigate the geobiological processes in association with the faunal mass extinction across the Permian-Triassic boundary about 252 million years ago , and those related to the appearance of a se-ries of faunas in Ediacaran of Neoproterozoic in about 600 million years ago .It is proposed that the atmos-pheric conditions ( i.e., temperature, oxygen concen-tration) and the oceanic chemistry ( i.e., anoxic and euxinic conditions ) show a direct impact or even control the evolution and development of macro-organisms dur-ing critical periods in Earth history .Microbial function-al groups can exhibit sensitive responses to the changes in atmosphere , environments and ecosystems as well as the solar activities .These microorganisms could further change the Earth environments via various geobiological processes , which keeps Earth shift back to a self-regu-lating state even after a global change .