Point Sources Pollution of Nutrient Situation and Prediction of Gan River Basin
Forecast about nutrient (mainly referring to nitrogen, N and phosphorus, P) emission from point sources of Gan River was made on the base of pollution state and spatial-temporal variety regularity from 1999 to 2009. During the research period, maximum of total nutrient emission was in Ganzhou (TN 1.64×104t, TP 0.21×104t), which is followed by Nanchang. Just in terms of 2009, total nutrient emissions from Ganzhou and Nanchang account for 60% and Nanchang, as a main control station, per capita nutrient emissions increased at the speed of 7.96% and 7.17% in 2008 and 2009, respectively. According to the prediction model, TN and TP emissions from Gan River basin will be 5.25×104t and 0.68×104t, respectively. Meanwhile, point sources still is the principal part of total nutrient emission from Gan River, which will have a negative impact on water quality of estuary and Poyang Lake. Therefore, the key to comprehensive management of water pollution is point sources.
Hexing Li, Qunjie Xu and Daquan Zhang
M. Li et al., "Point Sources Pollution of Nutrient Situation and Prediction of Gan River Basin", Advanced Materials Research, Vols. 356-360, pp. 651-656, 2012