Table 2.

Geographical information and site types for the 16 sampling sites on the Yangtze River Basin.

Number	Sites Name	Latitude	Longitude	Type of Sample Site
S1	Erhai	25°37′	100°15′	city
S2	Sansu River	26°59′	100°13′	rural
S3	Dianchi	24°54′	102°43′	rural
S4	Xiangshui River	26°34′	104°56′	city
S5	Hongfenghu Reservoir	26°34′	106°26′	industrial areas
S6	Qingshui River	27°31′	109°35′	city
S7	Min River	28°45′	104°38′	city
S8	Stem Stream of Yangtze River	29°32′	106°34′	developed city
S9	Zhanghe Reservoir	30°58′	112°04′	rural
S10	Man River	31°35′	112°16′	city
S11	Runshui River	31°43′	113°20′	city
S12	Chang Lake	30°23′	112°30′	woodland
S13	Hanbei River	30°40′	113°08′	rural
S14	Tao Lake	31°61′	119°55′	rural
S15	Xi Jiu River	31°21′	119°48′	city
S16	Cheng Lake	31°18′	120°51′	rural