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一、前言早在远古时期,人类就有意识地利用火作为农业生产的手段。首先是利用焚烧清除林莽丛薮和草,为开辟种植园和农田提供空间。这种措施至令仍在热带和亚热带地区实行着,并且严重破坏着地球生物圈内的平衡,应当受到禁止。但是有控制地利用火来促进农牧业生产和提高效益,也仍然是一个值得重视的课题。美洲的古代印地安人用烧荒来去除大草原上利用价值不高的牧豆树、
I. Preface As early as ancient times, mankind consciously used fire as a means of agricultural production. The first is to use incineration to clear the forest bush and grass, to open up plantations and farmland to provide space. Such measures should still be practiced in the tropics and subtropics and should seriously undermine the balance within the Earth’s biosphere and should be banned. However, the controlled use of fire to promote the production of agriculture and animal husbandry as well as the improvement of efficiency are still issues of great importance. The ancient Indians of the Americas used burned wood to remove meadows that were not well utilized in the prairies,