# An Integrated Decision Support System for Low-Disturbance Surface Mining
## 4 Discussion
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{
\begin{tabular}{c} **Indicators-** \\ **Pathways** \\ \end{tabular} } & \multicolumn{4}{c}{**Closeness Coefficient**} & \multicolumn{4}{c}{**Prioritizing Order**} \\ \cline{2-9}  & **OD** & **ID** & **OP** & **LR** & **OD** & **ID** & **OP** & **LR** \\ \hline CS & 0.6205 & 0.6021 & 0.4742 & 0.5756 & 1 & 2 & 4 & 3 \\ CE & 0.5595 & 0.5026 & 0.5355 & 0.5323 & 1 & 4 & 2 & 3 \\ CP & 0.5129 & 0.6399 & 0.5348 & 0.5645 & 4 & 1 & 3 & 2 \\ CD & 0.6262 & 0.5021 & 0.4659 & 0.5183 & 1 & 3 & 4 & 2 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: F-TOPSIS results under each challenge indicator. \"Intelligent dispatch (ID)\" and \"Optimisation of processes (OP)\". The pathway focuses on solving the problem of rock-discharge engineering disturbance at source, emphasizing the reduction of rock-discharge disturbance in open pit mines through optimized design and land reclamation. \"Control of pollution emission (CP)\" received third priority. The sub-indicators under this category, in descending order of priority, are as follows: \"Emission intensity of gaseous pollutants (CP3)\", \"Dust emission intensity (CP1)\", \"Emission intensity of water pollutants (CP2)\" and \"Noise pollution (CP4)\" Conventional mining patterns put enormous pressure on the environment, with mining operations resulting in significant greenhouse gas emissions, particularly from transportation fuels, electricity consumption and spontaneous combustion of coal [45]. Many mining operations, such as drilling, blasting, excavation, crushing, handling, transportation, etc., are sources of dust and noise pollution [46]. During open-pit coal mining, surface water and groundwater may form acidic water containing high concentrations of metal ions due to chemical interactions, and the formation of acid mine drainage is one of the major sources of pollution of concern to the world [47]. Overall, pollution emissions are a key contributor to open pit mine disturbances, so reducing pollution is critical to the achievement of LDM goals. This paper gives a preliminary ranking of technology pathways and their prioritization under this indicator, in order of priority, from highest to lowest: \"Intelligent dispatch (ID)\", \"Land reclamation (LR)\", \"Optimisation of processes (OP)\" and \"Optimised design (OD)\" The pathway focuses on addressing the engineering disturbance of pollution emissions from open pit mine production, emphasizing the reduction of greenhouse gas emissions and dust pollution through smart scheduling and land reclamation. \"Control of drainage (CD)\" received fourth priority. The sub-indicators under this category, in descending order of priority, are as follows: \"Intensity of in-pit water discharge (CD2)\" and \"Groundwater discharge intensity (CD1)\". As open pits inevitably collect groundwater in the process of mining. To ensure the production of mines, it is generally necessary to carry out drainage treatment of pits, which may lead to the imbalance of the hydrological cycle of the original stratum, soil desertification, grassland degradation, and other environmental and geological disturbances [48]. Studies have shown that open-pit mine drainage can also have a greater impact on nearby biological communities [49; 50]. Therefore, \"Control of drainage (CD)\" is crucial to LDM and should be given sufficient attention. The paper gives a preliminary list of technology pathways and their prioritization under this indicator: \"Optimised design (OD)\", \"Land reclamation (LR)\", \"Intelligent dispatch (ID)\" and \"Optimisation of processes (OP)\". The pathway focuses on addressing drainage project disturbances at source and, in doing so, emphasizes the reduction of open pit mine drainage disturbances through optimal design and land reclamation.