Ecological and Geomorphic Fallout of Escalating River Mining Activities: A Review

• 영문명: Ecological and Geomorphic Fallout of Escalating River Mining Activities: A Review
• 발행기관: 대한자원환경지질학회
• 저자명: Sk. Rakibul Islam Rafi Uddin Miftahul Zannat Jahangir Alam
• 간행물 정보: 『자원환경지질』57권 3호, 293~303쪽, 전체 11쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2024.06.30

국문 초록

River mining, the extraction of sand and gravel from riverbeds, is rising at an alarming rate to keep pace with the increasing demand for construction materials worldwide. The far-reaching deleterious effects of river mining include the lowering of water levels, the augmentation of turbidity, and the erosion of riverbanks, i.e., the disruption of water flow and alteration of river morphology. Aggregates demand, geolocation, and the economy of Bangladesh accelerated illegal extraction. However, limited research has been carried out in this region, despite the severe impact on aquatic and terrestrial ecosystems. To address the corresponding consequences and direct the scope for further research, it is required to evaluate existing studies of other countries having similarities in river morphology, climate, economy, and other related parameters. In this respect, based on previous studies, the effects of sand extraction are particularly prominent in India, having 54 cross-boundary rivers with Bangladesh. The geological profile of numerous rivers in the past decades has been altered due to natural aggregate mining in the Indian subcontinent. Hence, this study focused on relevant research in this region. However, the existing research only focuses on the regional portion of the aforementioned international rivers, which lacks proper assessments of these rivers, taking into account especially the mining effects. Moreover, several global rivers that have similarities with Bangladeshi rivers, considering different parameters, are also included in this study. The findings of this article underline the pressing need for more efficacious measures to address the adverse effects of river mining and safeguard ecosystems and communities globally, especially in the Indian subcontinent, where the situation is particularly vulnerable. For this reason, targeting the aforementioned region, this review highlights the global evidence in assessing the future effects of river mining and the need for further research in this field.

목차

1. Introduction

2. Effect of Sand Mining on River Morphology in the Indian Subcontinent

3. Channel Incision and Narrowing

4. Channel Instability and Impacts on Riparian Zones

5. Impacts on Aquatic Life

6. Lowering of Groundwater Table and Intrusion of Saline Water

7. Conclusion

Availability of Data and Material

Funding

Competing Interests

Reference

키워드

sand extraction riverbed ecosystem morphology and channel instability