Impact of sand mining on the changes of morphological and physical dynamics in Sa’dang River, Pinrang District, Indonesia

Abstract

The research aimed to investigate the morphological changes and physical dynamics conditions of the Sa'dang River associated with river sand mining activities. The research is expected to benefit the efforts of the management of sand mining in this area and enrich knowledge about the issues of river sand mining. The study was conducted in Sa'dang River sand mining area, which includes villages of Pincara, Massewwae and Mangki of Pinrang District in South Sulawesi Province, Indonesia. A field survey was conducted in October to December 2019 to see the condition of the river along with the mining activities that were taking place. Field data analysis was combined with google earth imagery data for 2006, 2014, 2017 and 2019 using ArcGIS 10.5 software to see changes in river morphology, formation and extent of point bar and channel bar, as well as changes in the area of river water bodies and non-water river bodies. The results showed that the changes in morphology and physical dynamics conditions of the Sa'dang River showed their own pattern. If sediment deposits forming point bars or channel bars were reduced, the area of river water bodies tended to increase. Or in other words, the width of the river is inversely proportional to the increase in the area of the river water body if the area of sediment deposits that form the point bar and channel bar tends to decrease.

Gravel and River sand mining activities in Maroua (Far-North Region, Cameroon): Environmental and Socioeconomic aspects

“…Table 2 below and Figure 4 lists the identified environmental impacts associated with the sand and gravel mining activities in Maroua. It is clear that sand mining operation can have direct impacts on the environment, causing ecosystem damage and indirect impacts, affecting channel morphology, which in turn affects the distribution of habitats and ecosystem functioning Arsyad et al, 2020;Talukdar and Das, 2020;Rentier and Cammeraat, 2022). This can lead to deterioration in the quality of the riverine environment (Zou et al, 2019;Arsyad et al, 2020;Bhattacharya et al, 2020;Talukdar and Das, 2020).…”

“…It is clear that sand mining operation can have direct impacts on the environment, causing ecosystem damage and indirect impacts, affecting channel morphology, which in turn affects the distribution of habitats and ecosystem functioning Arsyad et al, 2020;Talukdar and Das, 2020;Rentier and Cammeraat, 2022). This can lead to deterioration in the quality of the riverine environment (Zou et al, 2019;Arsyad et al, 2020;Bhattacharya et al, 2020;Talukdar and Das, 2020). Additionally, many recent researches have shown that stagnant water collects in ponds after sand excavation, creates breeding grounds for mosquitoes and other disease-causing organisms (Shin et al, 2020;Adza et al, 2022;Zou et al, 2019;Rangel-Buitrago et al, 2022;Adza et al, 2022).…”

Diurnal and Seasonal Variations of Particulate Matter (PM2.5) at a Tailing Storage Facility and Nearby Community

“…Gold mining plays a substantial economic role and provides sources of employment and income (Wale, 2021) due to the increasing demand for gold (Rukmana, 2020). Despite its economic role, mining activities are associated with deteriorated air quality (Mencho, 2022).…”

Uncovering the lack of awareness of sand mining impacts on riverbank erosion among Mekong Delta residents: insights from a comprehensive survey

“…However, this has had adverse effects on the environment, contributing to both water and land pollution in rivers and residential areas due to the leakage of large amounts of waste and heavy metals 1 , and river morphology changes 5 . Notably, riverbank erosion has escalated in recent years, leading to severe property damage and affecting the well-being and security of local communities 6 . Despite these issues, public awareness of the environmental impacts of sand mining remains limited, hindering the implementation of effective mitigation and protection measures.…”