Research on nitrogen and phosphorus losses of natural composting manure in the northern region of Erhai Lake

In recent years, the trend of eutrophication appeared in Erhai and the phenomena of small-scale algae outbreak has already happened. Erhai Lake pollution caused by many reasons. As an important factor of Erhai lake eutrophication, superabundant manure stacking at random in rural areas of Erhai Lake Basin and transference of the manure nitrogen and phosphorus into waterbody have attracted much attention of environmental researchers eutrophication of Erhai lake. The nitrogen and phosphorus contentes of livestock manure in the process of naturally composting were mensurated and the transference characteristics of the manure nitrogen and phosphorus were analysed. As a result, the regular pattern and loss type of livestock manure were advanced and advices about developing solid waste treatment facilities were brought forword.