Open AccessA study on the erosion hazard rate of Limboto Lake catchment area
Author(s) -
Sunarty Suly Eraku,
Mohd Jamil
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/681/1/012041
Subject(s) - erosion , environmental science , drainage basin , hazard , hydrology (agriculture) , drainage , hectare , structural basin , rainwater harvesting , water resource management , geology , agriculture , geography , geotechnical engineering , geomorphology , ecology , chemistry , cartography , organic chemistry , archaeology , biology
Damages to the land resources, mainly those happening on the drainage basin at Alo, Gorontalo occur in consequence of degradation of the ground surface layer as hit by raindrops and rainwater flow that carry soil surface. This issue becomes quite serious due to illegal logging and agricultural land conversion, mostly for maize fields as one of Gorontalo’s top commodities. As an attempt to analyze the problems, this study is undergone through field observation and documentation. This study covers aspects of socio-biogeophysical characteristics of the Alo drainage basin and analyzes the level of soil surface erosion and tolerable erosion rate. The result shows that 98.75 percent of erosion hazard is classified into low-to-moderate, covering approximately 6,874.721 hectares. Meanwhile, 1.25 percent of the high-to-extreme level of erosion hazard is 98.79 hectares wide. This suggests that the inappropriate use of land is more likely to increase the erosion hazard rate.