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Modelling greenhouse effect: an ecodynamic approach

机译:模拟温室效应:一种生态动力学方法

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The model described in this paper can be defined with the neologism "ecodynamic". The biosphere is defined as the geometric locus in which entropy decreases. The biosphere is in a steady state: it does not grow quantitatively but only in biodiversity (or at least is has grown in biodiversity from the origin of life up to recent millennia). Since the exchange of matter with the outside is practically negligible and, on the other hand, the Earth receives an enormous flux of energy from outside, the biosphere can be regarded thermodynamically as a closed system. The "conditio sine qua non" for all this to continue is the absence of an adiabatic membrane around the planet. In other words, the greenhouse effect must not be allowed to prevent the flow of positive entropy into space. The role of carbon dioxide and other "greenhouse" gases becomes determinant in this ecodynamic model, one reason being the great difference between the biological time of fossil formation and the fleeting historical time in which the fossils are being used. The space of the biosphere is defined as the spherical corona of the planet including the atmosphere and the ozonosphere, the oceans and the Earth's crust, but not reduced carbon which has effectively been treated as a waste by nature, relegated as it is to the bowels of the Earth, the biological dustbin. If we examine the spatial model in more detail, we find that the boundary between the biosphere and the universe is open to the entry of flows of energy and matter. It receives more than 10~(24) joules of solar energy per year, an enormous quantity, and receives practically no matter, with the exception of meteorites and atmospheric dust, a negligible quantity in relation to the mass of the Planet. The same boundary is not open to the exit of flows of matter (with the negligible exception of space vehicles sent by man) because of gravitation, but is open to the exit of an enormous flow of degraded energy (positive entropy). The latter property is necessary for the maintenance of life. It is a fundamental negentropic condition that man can alter by dumping greenhouse gases into the atmosphere.
机译:本文描述的模型可以用新词“生态动力学”定义。生物圈定义为熵降低的几何轨迹。生物圈处于稳定状态:它不是定量增长的,而是仅在生物多样性中增长的(或者至少在从生命起源到近千年的生物多样性中增长)。由于与外界的物质交换几乎可以忽略不计,另一方面,地球从外界接收大量的能量通量,因此生物圈在热力学上可以看作是一个封闭的系统。所有这些继续存在的“条件正弦”是在行星周围没有绝热膜。换句话说,必须不允许温室效应来防止正熵流入太空。在这种生态动力学模型中,二氧化碳和其他“温室气体”的作用成为决定因素,原因之一是化石形成的生物学时间与化石使用的短暂历史时间之间存在巨大差异。生物圈的空间被定义为包括大气层和臭氧层,海洋和地壳在内的行星球形日冕,但并未还原为碳,而碳已被自然地有效地视为废物,被归类为肠地球上的生物垃圾箱。如果我们更详细地研究空间模型,我们会发现生物圈和宇宙之间的边界对能量和物质流的进入是开放的。每年,它接收超过10〜(24)焦耳的太阳能,数量巨大,几乎接收不到任何东西,除了陨石和大气尘埃,相对于行星质量而言,数量可忽略不计。相同的边界由于引力而不对物质流的出口开放(人为运载的航天器可以忽略不计),但对大量的退化能量流(正熵)开放。后一特性是维持生命所必需的。人类可以通过将温室气体排放到大气中来改变它,这是一种基本的向列性条件。

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