水松(Glyptostrobus Penailis)为杉木科、水松属半落叶性大乔木,喜生于水湿或沼泽环境,在PH 5—9范围的土壤条件下,均能正常生长。水松是一个古老树种,也是我国南方特产之一。多分布于珠江三角洲,广东各地和福建南部的河堤、沟边亦有栽培。水松的根系组织松软,耐浸耐腐,被泥层淹埋数百年的伐根,也完整如故。水松的根颈部分特别膨大,主根能伸进土层5～7米。珠江三角 Glyptostrobus penailis is a Chinese family of Cedrus, Picea semilunarissus, and is favored by water or marsh environment and grows well under soil conditions ranging from 5 to 9 PH. Cork is an ancient species, but also one of the specialty of southern China. Mostly distributed in the Pearl River Delta, Guangdong and southern Fujian embankment, ditch edge also cultivated. The root system of cork is soft, resistant to corrosion and decay, and has been completely immersed in mud for hundreds of years. In particular, some of the roots of cork are dilated, the main root can reach 5 to 7 meters of soil. Pearl River Delta