英国近代人口理论创立者马尔萨斯认为人口增长是造成贫穷和罪恶的根本原因。人类历史上游牧民族和农耕文明之间爆发战争的主要原因在于人口数量的变化。放眼中国两千多年古代史,北方游牧民族与中原农耕文明之间的战争持续不断,因此研究其爆发原因很有意义。西方近代著名经济学家、人口理论的创立者马尔萨斯在其著作《人口论;人口对未来社会进步的影响;兼评葛德文先 Malthus, the founder of the modern theory of population in Britain, believes that population growth is the root cause of poverty and sin. The main reason for the outbreak of war between nomads and agricultural civilizations in human history is the change in the population. Looking at China’s ancient history of more than two thousand years, the war between northern nomads and the Central Plains farming civilization continued. Therefore, it is very meaningful to study the causes of its outbreak. The famous modern western economist, the founder of population theory Malthus in his book "Population theory; the impact of population on future social progress; and Comment on Gede Wenxian