北京房山区旅游资源丰富很多景区早已名声在外，不过这里还有一块宝地，就是长沟。长沟镇素有“京南水乡”美誉，“绿水弯环似水乡，连塍亦见菜花黄”就是乾隆皇帝当年对长沟之美的倾情赞美。长沟花田湿地公园是一处新建的景观。利用当地独有的湿地环境，这里的普通农田逐渐被替换成了向日葵、油菜花、薰衣草等景观农作物。六一儿童节期间正赶上长沟花田油菜花花期，乘兴前往。

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