… to be causing serious water pollution problems from diffuse agricultural sources 29 . There
… Our results showed that water quality parameters have different extents of pollution and we …

… Agricultural activities, such as fertilizers are often important non-point pollution sources.
Therefore, the chemical fertilizer reduction might reduce the effects of cropland …

… index, and exceeding this threshold was more likely to cause the change of river water
quality. For DO, COD Mn , and BOD 5 , the threshold of urban land occupation was 20–30% (Fig. …

… point source pollution is the main factor causing water quality … It is worth noting that a Land
Cover Pollution Index (LCPI) … the relationship between landscape pattern and water quality [14…

… idea of the relationship between landscape pattern and water quality threshold considering
the spatial scale effect to … quality in different pollution sources. The results showed that the …

… water quality parameters and the spatial scale associated with it, we investigate the relationships
between landscape patterns … source pollutants and make pollutants easier to enter the …

… water quality was better explained using landscape pattern … relationship between land use
and water quality on the scale … point source pollution discharge may also affect water quality…

… water quality is challenging, primarily due to point source (PS… water pollution due to fertilizer
application entering surface … land use and landscape pattern on water quality varied from …

… analysis were used as indicators of pollution sources in the river system. In our study, the
higher factor scores indicated that the pollution sources mainly come from the sampling sites 1, …

… pollutants and affect receiving water quality significantly. Understanding spatial distribution
and allocating water pollution sources … quantify a patch in terms of size, isolation and shape, …