明万历四年,徐贞明撰写了《潞水客谈》,认为发展西北农田水利建设,就近解决京师及北方地区的粮食供应问题,缓解东南地区的经济压力,实属国家之大计、之急务,并对开发西北水利的具体措施进行了论述。徐贞明之所以撰写此书,既有现实的社会政治和经济原因,又与他的个人经历有关。 In the four years of Ming Wanli, Xu Zhenming wrote the “Lu Shui Hak Tau” and believed that the development of farmland and water conservancy construction in the Northwest China, the immediate solution to the grain supply problem in the capital and the northern region and the alleviation of the economic pressure in the southeast of China are in fact the country’s grand plans and priorities. The specific measures for developing Northwest water conservancy are discussed. The reason why Xu Zhenming wrote this book is both a realistic social, political and economic reason, but also relates to his personal experience.