京郊密云县农业生态系统蛋白质生产效率和人口承载力研究

蛋白质是人类最基本最重要的营养需求,研究蛋白质生产效率可为制定食物发展战略,建立合理的膳食结构提供参数与依据。食物蛋白质生产效率在国外研究较多,在国内报道还不多。作者从密云县整体系统水平对动植物蛋白生产力和蛋白质生产的能量、氮素效率进行了研究,并深入探讨了不同膳食结构的蛋白人口承载力。

Study on the Protein Producing Efficiency and Population Carrying Capacity of Agroecosystem in Miyun County of Beijing Suburb.

This paper gives a series of parameters about the protein productivity and resource transfor-mation efficiency in the agroecosystem of Miyun county,approaches the population carryingcapacity of this system under various food structures,and based on these,puts forward sug-gestions on the establishment of an appropriate consumption system with a food diet domi-nated by vegetable proteins and on the ways for further improvement of the system.