Multi-scale Modeling of Nutrient Pollution in the Rivers of China.

ABSTRACT: Chinese surface waters are severely polluted by nutrients. This study addresses three challenges in nutrient modeling for rivers in China: (1) difficulties in transferring modeling results across biophysical and administrative scales, (2) poor representation of the locations of point sources, and (3) limited incorporation of the direct discharge of manure to rivers. The objective of this study is, therefore, to quantify inputs of nitrogen (N) and phosphorus (P) to Chinese rivers from different sources at multiple scales. We developed a novel multi-scale modeling approach including a detailed, state-of-the-art representation of point sources of nutrients in rivers. The model results show that the river pollution and source attributions differ among spatial scales. Point sources accounted fo

SUBMITTER: Chen X 

PROVIDER: S-EPMC6706797 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature