A Study on the Development of Reduction Facilities’ Management Standards for Agricultural Drainage for Disaster Reduction

Youngseok Song,Moojong Park

doi:10.3390/su13179595

Abstract

The agricultural drainage in rural area plays important roles in water supply and drainage for crop cultivation. Various kinds of debris near agricultural drainage, however, causes sedimentation in the drainage during rainfall. The debris introduced into the agricultural drainage moves out of the drainage under a high flow rate. This causes a reduction in the flow rate, which may affect the discharge capacity, resulting in crop damage. This study developed a reduction facility to reduce debris entering agricultural drainage and analyzed the performance by measuring the capture efficacy in the hydraulic experiment. A total of 648 runs were performed for 216 experiment conditions where three replications and error ranges were calculated depending on the inflow characteristics of debris. This study also evaluated the performance of the reduction facility and established the design criteria by developing a capture efficacy equation by flow rate and type of reduction facility.

Highlights

A drainage is a structure that is installed for rainwater to flow during rainfall, and it is used in various settings such as rural, mountainous and urban areas [1]
This study develops a reduction facility, as shown in Figure with theconsiders size of 400 the mm charact most commonly used for agricultural drainage by considering the design criteria for debrisof debris near agricultural drainage that could flow into the drainage, and design reduction facilities
A total of 648 runs were performed in the hydraulic experiment, with three cases for

Summary

Introduction

A drainage is a structure that is installed for rainwater to flow during rainfall, and it is used in various settings such as rural, mountainous and urban areas [1]. The agricultural drainage located in rural areas serves as waterways for supplying water or drainage, through which nearby trees and crops are introduced. Debris such as branches and crops, located around the agricultural drainage during rainfall, flows into the drainage along with rainwater, and sedimentation occurs in a slow flow. The inflow of debris into agricultural drainage causes sedimentation, while overflow due to lack of discharge capacity is a major cause of flooding of agricultural land. Research on structural and utilization of agricultural drainage channels was mainly conducted to improve crop production and Sustainability 2021, 13, 9595.

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