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一、概况增城于后汉201年立县,属南海郡。此前,南海郡属六县,此县为增设,故名增城。流经该县元江亦名增江。它发源于从化七星岭,南流到新家埔入东江三角洲,长203km,比降达0.74‰,集水面积3 114km~2,为东江第三大支流。据麒髒咀25年实测,最大径流量65.3亿m~3,最小13.2亿m~3,平均39.7亿m~3,径流深1 384.2mm,汛期4—9月,汛期平均径流量32.7亿m~3。由于河道不断淤高,河弯、
First, the overview Zengcheng in the post-Han 201 years County, is the South China Sea County. Previously, Nanhai County is a six counties, the county for the addition, hence the name Zengcheng. Flow through the county Yuanjiang also by the name of Jiang. It originated in Conghua Qixingling, flows southward to Xinjiabao in the Dongjiang Delta, which is 203km long and 0.74 ‰ lower than the previous one. Its catchment area is 3 114km ~ 2, which is the third largest tributary of the Dongjiang River. According to the measured 25 years of Qi dirty mouth, the maximum runoff is 6.53 billion m 3, the minimum is 1.32 billion m 3, with an average of 3.97 billion m 3, and the runoff depth is 1 384.2 mm. During the flood season from April to September, the average runoff in flood season is 3.27 billion m ~ 3. Due to continuous siltation of the river, river bend,