Conservation Technology Model Fit for Farmlands in a Micro-watershed on the Ethiopian Highlands

IF 0.3 4区农林科学 Q4 AGRICULTURE, MULTIDISCIPLINARY

Jarq-japan Agricultural Research Quarterly Pub Date : 2023-10-01 DOI:10.6090/jarq.57.269

Kazuhisa KODA, Gebreyohannes GIRMAY, Tesfay BERIHU

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Abstract

The Tigray government in the Federal Democratic Republic of Ethiopia has implemented several water harvesting technologies to improve agriculture in drylands. They constructed 92 micro-dam reservoirs from 1992 to 2012. However, the sedimentation resulting from gully erosion has been settling in more than half of the micro-dam reservoirs. Consequently, it is difficult to provide the required irrigation for the upland fields situated downstream, especially in situations of decreased water availability, caused by the sedimentation over the bottom pipe intake of the irrigational systems/structures. The objectives of the present research are: 1) to verify the conservation of agriculture on farmlands situated at upper slopes for reducing erosion, 2) to estimate the sedimentation rate in micro-dam reservoirs, constructed by the local government, engineers, and residents for recycling the sediments, and 3) to cultivate vegetables on reclaimed farmland by reusing the sediments in micro-dam reservoirs. Thus, this study reports a case study of the water and soil management technology model in a micro-watershed in the Ethiopian highlands.

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适合埃塞俄比亚高原小流域农田的保护技术模式

埃塞俄比亚联邦民主共和国的提格雷政府已经实施了几种集水技术，以改善旱地的农业。从1992年到2012年，他们建造了92座微型水库。然而，超过一半的微坝水库由于沟槽侵蚀而淤积。因此，很难为位于下游的旱地提供所需的灌溉，特别是在灌溉系统/结构的底部管道进水口淤积造成可用水量减少的情况下。本研究的目的是:1)验证坡顶农田的农业保护作用，以减少侵蚀;2)估算由当地政府、工程师和居民为回收沉积物而建造的微坝水库的沉积速率;3)利用微坝水库的沉积物在开垦农田上种植蔬菜。因此，本研究报告了埃塞俄比亚高原小流域水土管理技术模式的案例研究。

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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来源期刊

Jarq-japan Agricultural Research Quarterly 农林科学-农业综合

CiteScore

1.00

自引率

25.00%

发文量

审稿时长

>36 weeks

期刊介绍： The Japan Agricultural Research Quarterly (JARQ) is a publication of the Japan International Research Center for Agricultural Sciences (JIRCAS), which provides readers overseas with the latest information on key achievements and developments in agricultural research in Japan, with the expectation that this information would contribute to the agricultural development of countries in tropical and subtropical regions.