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土生万物,千古常新,土壤生命力的坚强是任何生物所不能比拟的。这一类生物体(土壤)所经受环境因子的种种威胁,也是难以数计的。从人类开垦土地的那一天起,土壤就走上了多灾多难的命运,干旱、冷冻、风蚀、水蚀等自然灾害使它肌体消瘦,肤色枯黄,逐渐失去了稳产高产的能力。不但如此,由于农业科学进步迟缓,掠夺式的经营,还在无人觉察的情况下和灾害性的天气结合在一起,使无数人民面临着饥饿的威胁。
All things in earth, everlasting new, strong soil vitality is unmatched by any biological. The threats to the environmental factors that this type of organism (soil) suffers are also hard to count. From the day when mankind reclaimed the land, the soil has embarked on a troublesome fate. Natural disasters such as drought, freezing, wind erosion and water erosion make it thinner and yellowish, gradually losing its ability to maintain a stable and high yield. Moreover, the sluggish and predatory management of agrarian science, combined with disastrous weather and disastrous weather, has left innumerable people under threat of hunger.