Evaluating The Functionality of the Existing Natural Wetland as A Nature-Based Solution in Runoff Control in Hai District
ハイ地区における流出制御のための自然ベースの解決策としての既存自然湿地の機能評価 (AI 翻訳)
Benedict Daniel, Dr. Tulinave Mwamila, Catherine Mushi
🤖 gxceed AI 要約
日本語
タンザニアのハイ地区にある自然湿地が都市型洪水の緩和に有効か、EPA-SWMMモデルで評価。湿地を貯留ユニットとして扱うと流量追跡誤差が小さく、流出抑制効果が確認された。気候変動適応策としての湿地保全の重要性を示す。
English
This study evaluates the flood mitigation potential of a natural wetland in Hai District, Tanzania, using EPA-SWMM. Modeling the wetland as a storage unit reduced flow routing errors compared to a junction scenario, confirming its effectiveness in runoff attenuation. The findings support nature-based solutions for climate adaptation in urban areas.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では、気候変動による豪雨災害が増加しており、グリーンインフラや流域治水の関心が高い。本研究成果は、自然湿地の防災機能を定量的に評価する手法として参考になる。
In the global GX context
Globally, nature-based solutions are gaining attention for climate adaptation and disaster risk reduction. This study provides a quantitative method to assess wetland functionality, relevant to urban planning and climate resilience policies.
👥 読者別の含意
🔬研究者:自然ベースの解決策の定量的評価手法として、SWMMを用いた湿地機能の評価方法を参考にできる。
🏢実務担当者:都市計画や水管理の実務者は、湿地保全の防災効果を数値で示す根拠として活用できる。
🏛政策担当者:気候適応策としての湿地保全の政策根拠に寄与する。
📄 Abstract（原文）
Urban flooding has become an increasing challenge in rapidly developing areas where conventional drainage systems are unable to cope with high-intensity rainfall and rising surface runoff. This study evaluated the functionality of Boroti natural wetland in Hai District, Kilimanjaro Region, Tanzania, as a nature-based solution for urban stormwater runoff control. Increasing urbanization, steep topography, and high-intensity rainfall have caused frequent flooding and failure of conventional drainage systems in the area. The study applied EPA-SWMM 5.2 to assess the hydrological performance of the wetland under two scenarios: with the wetland represented as a storage unit and without the storage function, where it was replaced by a junction. Catchment characteristics including sub-catchment area, slope, land use, hydrologic soil groups, curve numbers, and infiltration parameters were generated using ArcGIS 10.4 and standard hydrological methods. Results showed that both scenarios had low runoff continuity error (-0.03%), but the storage unit scenario produced a lower flow routing error (-8.16%) compared to the junction scenario (-16.90%). The findings confirm that natural wetlands significantly improve runoff attenuation and flood mitigation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5281/zenodo.21738693first seen 2026-08-03 04:51:59 · last seen 2026-08-03 04:52:00
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