Research on aquatic ecology in the Naban River and restoration suggestions

The Naban River is an important river in Naban River Watershed National Nature Reserve (NRWNNR), Xishuangbanna. Research about the aquatic ecology is very important for sustainable utilization of water resource in NRWNNR. Field investigations were conducted at 7 sampling sites by using macroinvertebrates as indicators to assess the aquatic ecology in the Naban River in October 2012. The level of rubber cultivation intensity in the 7 sites was different. The results showed that with the increase of rubber cultivation intensity, the biodiversity of macroinvertebrates trended to decrease. The abundance ratio of Ephemeroptera, Trichoptera and Plecoptera to total macroinvertebrates trended to decrease. The abundance ratio of Diptera trended to increase. The abundance ratio of predators trended to decrease. Based on the results, methods for protecting and restoring the aquatic ecology in the Naban River were proposed.