Fig. 4: Daily mean values of nitrate source proportion on each reservoir simulated by ETM+ long-term series data and statistics in dry season and rainy season. | npj Clean Water

Fig. 4: Daily mean values of nitrate source proportion on each reservoir simulated by ETM+ long-term series data and statistics in dry season and rainy season.

From: A framework for tracing the sources of nitrate in surface water through remote sensing data coupled with machine learning

Fig. 4

a–d Proportion of nitrate sources in LJ. e–h Proportion of nitrate sources in NS. i–l Proportion of nitrate sources in QW. m Proportion of nitate sources in LJ during dry season and rainy season from 2006 to 2023. n Proportion of nitate sources in NS during dry season and rainy season from 2006 to 2023. o Proportion of nitate sources in QW during dry season and rainy season from 2006 to 2023. In both (a–i), the blue bar represents the daily rainfall, the gray part represents the simulated maximum and minimum range, the red dashed line represents the MK test trend line, the solid color line represents the simulated mean value, and the black dashed line represents the mean of the simulated means over the entire time series. In both (m, n, o), the red box represents the dry season and the blue box represents the rainy season.

Back to article page