Abstract：The spatial-temporal distribution characteristics, composition and change rule of ρ(TSS) in Lihu Lake, a shallow lake, were analyzed by field survey data and historical monitoring data in 2012~2013. The key impacting factors of ρ(TSS) and relationship between it and nitrogen, phosphorus were discussed. Results showed that the annual ρ(TSS) was 1.00~78.00mg/L, with the mean value of 17.35mg/L. ρ(TSS) in east Lihu Lake and coastal areas was higher than that in west Lihu Lake and lake center, respectively. The seasonal characteristics of ρ(TSS) was autumn>summer> spring>winter, and ρ(TSS) in winter was significantly lower than the other seasons. ρ(OSS) and ρ(ISS) almost took the same proportion of ρ(TSS) in the whole lake, with the value of 51.52% and 48.48%, respectively. While significant spatial heterogeneity existed in the composition ratio. OSS was the main composition of east Lihu Lake, but the suspended matter of west Lihu Lake mainly existed in inorganic component. Results of multivariate regression analysis showed that ρ(TSS) was significant positive correlated with ρ(PN), ρ(TN), ρ(PP), and ρ(TP) (P<0.01). Planktonic algae proliferation, residues of aquatic plants and sediment resuspension were the main factors influencing ρ(TSS) in water.
王书航, 姜霞, 王雯雯, 胡佳晨, 张博, 李佳璐, 赵丽. 蠡湖水体悬浮物的时空变化及其影响因素[J]. 中国环境科学, 2014, 34(6): 1548-1555.
WANG Shu-Hang, JIANG Xia, WANG Wen-Wen, HU Jia-Chen, ZHANG Bo, LI Jia-Lu, ZHAO Li. Spatial-temporal dynamic changes of the water suspended matter and its influencing factors in Lihu Lake. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(6): 1548-1555.
