Sedimentation involving the process of silt transport also carries nutrients from upstream to downstream of a river/stream. Sand being one of the important fraction of these sediments is extracted in order to cater infrastructural/housing needs in the region. This communication is based on field research in the Aghanshini river basin, west coast of India. Silt yield in the river basin and the sedimentation rate assessed using empirical techniques supplemented with field quantifications using soundings (SONAR), show the sediment yield of 1105–1367 kilo cum per year and deposition of sediment of 61 (2016) to 71 (2015) cm. Quantifications of extractions at five locations, reveal of over exploitation of sand to an extent of 30% with damages to the breeding ground of fishes, reduced productivity of bivalves, etc., which has affected dependent people's livelihood. This study provides vital insights towards sustainable sand harvesting through stringent management practices.

涉及泥沙运移过程的泥沙也将养分从河流/溪流的上游带到下游。为了满足该地区的基础设施/房屋需求，沙土是这些沉积物的重要组成部分之一。本交流基于印度西海岸阿甘斯基尼河流域的实地研究。流域的泥沙产量和使用经验技术评估的沉积率，再加上使用测深仪（SONAR）进行的田间量化，显示出每年泥沙产量为1105–1367千立方米，沉积物沉积量为61（2016）至71（2015）厘米。对五个地点的提取物进行了定量分析，发现过度开采沙土的程度达到30％，这损害了鱼类的繁殖地，降低了双壳类动物的生产力，等等，这影响了受抚养者的生计。这项研究通过严格的管理实践为可持续采砂提供了重要的见识。