一、气候怎样影响岩石风化生成土壤? 土壤都是由岩石风化变成的。岩石长期暴露在大自然里,经风,霜,雨,雾的浸蚀,气候冷热的变化,流水冲激等等,逐渐由大块粉碎如碎屑,而慢慢地由碎屑变成了土壤。下面分温度、风力、水力、雨水等四方面来谈谈。 1.温度对於土壤生成的影响物体受了冷、热温度的影响,有着澎涨与收缩的现象,特别是一些乾燥区域,温度日较差、年较差均很大,卽骤寒骤热,岩石遂发生不均匀的涨缩,以致发生裂缝,慢慢的就崩溃成碎块,逐渐变化生成土壤,据研究花岗岩,100呎长由50℉涨至70℉的温度时,要长半吋长。体积加大,压力加大,遂发生裂缝而致於崩解。岩石缝内含水结冰,冰比水体积加大9％,增加压力150吨,解冻时体积减少,岩石受压力,一涨 First, how does the climate affect the weathering of rocks to produce soil? The soil is made of weathering rocks. The rock is exposed to nature for a long time, the erosion of wind, frost, rain, and fog, the change of climate, heat and water, etc., gradually crushed by large pieces such as crumbs, and slowly turned into debris. The soil. Let’s talk about temperature, wind power, water power, rain, etc. 1. Influence of temperature on soil formation Objects are affected by cold and heat temperatures, and have phenomena of rising and shrinking. Especially in some dry areas, the daily temperature is poor and the annual difference is large. The rock crests have unevenly increased and contracted, resulting in cracks. They slowly collapse into fragments and gradually change to generate soil. According to the study of granite, when the temperature of 100 feet grows from 50°F to 70°F, it takes a long time. long. The volume increases, the pressure increases, cracks occur in the crucible and cause disintegration. Aqueous icing in the joints of the rocks, the volume of ice is increased by 9% over water, the pressure is increased by 150 tons, the volume is reduced when thawing, and the rock is under pressure and rises.