“地球表层”再讨论

The second discussion on the "Earth's surface layer"

对"地球表层概念"的界定与发展和基于新概念的地球表层系统(结构)等进行了综合讨论和阐述;定义了地球表层概念的内涵,提出:地球表层是指地表和近地表各圈层相互作用和渗透的地球部分,是地球上部多态(固、液、气、生物和有机态)物质相互渗透、交融并不断进行物能交换、转化和作用而结合形成的具有内部协同性和一定系统结构的有机整体,是地球生物的生存环境和地表生态系统发生、发展和演化的基础;进一步确立了地球表层的空间位置和范围(外延),即包括地球表面上下的岩石圈、水圈、大气圈、生物圈和物理(能量)场及其相关作用在内的地球空间,其下界是软流圈(以软流圈为过渡层),上界为大气圈最外层,至少应包括磁层在内;岩石圈以下的地幔和地核与大气圈以外的宇宙空间均为地球表层的环境。

The new concept of Earth's surface layer(ESL) is put forward anew and its content,meaning and extension is defined and the system construction based on the new concept is set forth with synthesis analysis. Namely,the Earth's surface layer is the Earth upper part of the entirety of the earth's surface with the vicinity district including lithosphere,hydrosphere,atmosphere,biosphere and physic fields in the interaction and pervasion.Its inside boundary is below the lithosphere(regarding asthenosphere as a passage bed) and the outside boundary is the most outer layer of atmosphere.It is a natural whole macrocosm with internal corrdination and certain systmeatic structure and combined by the multi-state (solid,liquid,atmosphere,biology and organ-state) substance on the earth. It is the subsistence environment of the earth life and the basic condition of occurrence,development and evolvement of the earth's ecosystem. Earth's core and the part of mantle under the lithosphere is the inner background of ESL and the astrospace outside atmosphere is its outer surroundings.