Anthropogenic influences on morphological changes in the Progo River, Daerah Istimewa Yogyakarta Province, Indonesia

A. Zamroni, B. P. Putra, H. Prasetya
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引用次数: 3

Abstract

Changes in the river morphology require knowledge of the suite of drivers that control it, whether natural or human. The study aims to analyze the anthropogenic influences on morphological changes in the Progo River using Google Earth Images. It is essential to know the recent changes in the morphology of the Progo River so that stakeholders can make policies to control human activities that influence the morphology changes of the Progo River. The study area is located in Bantul Regency, Daerah Istimewa Yogyakarta Province, Java Island, Indonesia. The size of ​​the Progo River watershed is around 17,432 square kilometers. Google Earth Images analysis is carried out to analyze the morphological changes of the Progo River from 2012 to 2019. The result shows that land-use changes due to dam construction affected the sediment supply downstream of the dam. In addition, land-use changes around the Progo River due to the opening of agricultural land and settlement areas had an effect on decreasing the infiltration area, so that the number of trees holding the soil from erosion was reduced, producing more eroded sediment that flowed to the river. Sand mining in the river could cause the deepening of water depths and a decrease in the average height of the riverbed.
人为因素对印度尼西亚日惹省Daerah Istimewa Progo河形态变化的影响
河流形态的变化需要了解控制它的一系列驱动因素,无论是自然的还是人类的。该研究旨在使用谷歌地球图像分析人为因素对Progo河形态变化的影响。必须了解Progo河形态的最新变化,以便利益相关者能够制定政策来控制影响Progo河形态学变化的人类活动。研究区域位于印度尼西亚爪哇岛日惹省Daerah Istimewa Bantul Regency。的大小​​普罗戈河流域面积约17432平方公里。谷歌地球图像分析是为了分析Progo河从2012年到2019年的形态变化。结果表明,大坝建设引起的土地利用变化影响了大坝下游的输沙量。此外,由于农业用地和定居区的开放,Progo河周围的土地利用变化对减少渗透面积产生了影响,从而减少了保护土壤免受侵蚀的树木数量,产生了更多流入河流的侵蚀沉积物。在河流中采砂可能导致水深加深和河床平均高度下降。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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