生存策略指的是在某种环境下谋生的方式,它包括人类谋生所依靠的技术以及所能开发的资源。随着农业的出现和传播,人类开始依靠谷物生存,并开始使用畜力进行耕作,这就使得人类社会得以供养比以往更多、更稠密的人口。谷物是一种高营养、高热量的食物,更重要的是,谷物可以集约耕作,因此,较少的土地就可以产出较多的食物。 Survival strategy refers to the way of making a living in an environment that includes the technologies upon which human beings earn their living and the resources they can develop. With the emergence and spread of agriculture, mankind began to rely on the survival of cereals and began to cultivate it using animal power, which enabled the human community to provide for more and more densely populated populations than ever before. Cereal is a highly nutritious and caloric food, and more importantly, cereals can be intensively cultivated, so less land can produce more food.