摘要：In order to strengthen the prevention and control of water pollution in rural rivers, it is necessary to analyze the pollution causes in detail, calculate the pollutant reduction amount and put forward the comprehensive treatment measures. Aiming at the small basin of a county in the southwest Guangxi, this paper carried out the comprehensive improvement of water environment, including specifically investigation the water pollution degree of the basin, calculating present pollution load and water environment capacity, and proposing pollutant reduction targets in accordance with the requirements for water quality targets. The basin has poor water quality background and is seriously polluted by rural living pollution sources, livestock and poultry breeding pollution sources and planting pollution sources, in order to solve these problems, the water quality assurance project, rural living sewage governance project and large-scale livestock and poultry breeding pollution governance project are put forward. Through project quantity accounting and pollutant reduction calculation, the water quality target can be achieved.
