Ming dynasty= a line of emperors that ruled China from 1368 to 1644.
Li Zicheng = one of the leaders of the peasant rebellion that ended the Ming dynasty.
Chongzhen = February 6, 1611 - April 25, 1644, the sixteenth and last emperor of the Ming dynasty.
Qing dynasty = la dernière dynastie impériale à avoir régné sur la Chine, de 1644 à 1912.
Buffer zone = any interstitial space in the rural landscape, maintained or specifically established to provide a function of interception and attenuation of agricultural contaminant transfers to aquatic environments.