The theory sprouted in the period of Yin and Shang dynastyies, formed in the period of Chunqiu and Zhanguo , developed in the period of Dong Han and Xi Han dynasties. 中国古代的环境伦理思想萌芽于殷商时期，形成于春秋战国时期，两汉时期得到进一步发展。
In the history of the development of the Yi-ology from the Han to Song dynasties, especially in the studies of the He Tu and Lu Shu, GUAN Lang is a comparatively important scholar. 摘要在从两汉到唐宋时期的易学发展中，尤其是在河图洛书方面，关朗是一个比较重要的学者。
