明季海淀的开发与李园、勺园一泓现在的北京西郊海淀一带，园林很多，而在明代以前，这里还是一片湖沼池泽。这一带地处永定河冲积扇，地下水源丰富，往往平地即有泉水涌出，“四去，草木泽之，洞洞磬折以参伍，为十余奠者，”从而形成了一片天然湖泊，名之为“海淀”，“... Ming Dynasty Haidian development and Li Park, Wang Yiquan now Beijing’s western suburbs of Haidian area, a lot of gardens, and before the Ming Dynasty, there is still a lake Marsh Chi. This zone is located in the Yongding alluvial fan, rich in groundwater, often springs are gushed out of the flat, “four to go, grass Mizusawa, cave fold to participate in the army, for more than a dozen,” thus forming a natural lake , Named “Haidian”, "...