Assessment on the Necessity to Purify the Newly Constructed Laohutan Reservoir

Abstract

Soils and vegetation of submerged areas will be the endogenous pollutions sources after water storage comes into use in the newly constructed reservoir. Enriched nutrients are released gradually into water, which has an effect on the water quality of reservoir. In this paper, taking Laohutan Reservoir as a study object, accumulation levels of nutrients in soils of the four main types of land use in the reservoir area are studied, the total amount of the pollutants produced by vegetation incineration in the reservoir area is estimated, and based on the experiments the effects of the pollutants in residual vegetation on the water quality of the proposed reservoir are predicted. It provides the theoretical bases for the pollution control of newly constructed reservoir and the establishment of purification measurements before water storage.