4. Disscussion
In order to compare the difference in zooplankton communities in response to water quality between the two urban landscapes in Hangzhou City, we apply the powerful multivariate analyses [25]. At present, there were very few studies comparing the freshwater in urban landscape areas.
In this study, the freshwater analyzed in present study are shallow systems. Abiotic variables, such as primary nutrients, can be easily and repeatedly measured, which is useful in monitoring programs [29]. The values of TP, NH4-N, NO2-N in Xixi Wetland were almost higher than in West Lake during the whole year, that is probably due to more domestic sewage be discharged in Xixi Wetland and the influence of fishery production. For the value of Chemical oxygen demand (COD), West Lake was higher than Xixi Wetland during the research period, indicating a more serious organic pollution or excessive organic matter decomposition. As the abiotic indices are sensitive to short-term changes in water quality, the seasonal pattern showed in Fig. 3 indicating rainy season may influence water physicochemical factors more or less.