Rainfall Erosivity Estimators for Application in Burundi

IF 2.9 3区地球科学 Q1 Environmental Science

Hydrological Processes Pub Date : 2025-06-21 DOI:10.1002/hyp.70181

Fides Gakunde, Vincenzo Bagarello, Vito Ferro

{"title":"Rainfall Erosivity Estimators for Application in Burundi","authors":"Fides Gakunde, Vincenzo Bagarello, Vito Ferro","doi":"10.1002/hyp.70181","DOIUrl":null,"url":null,"abstract":"In this paper, following the results of previous studies and using the monthly rainfall data of 13 sites in Burundi, a comparison between two different estimators (modified Fournier index MFI and FF index) of the rainfall erosivity factor of the Universal Soil Loss Equation (USLE) was firstly developed. The theoretical relationships between MFI and the mean annual rainfall P and between FF and P were tested by the available rainfall data. The constants Km and K, linking MFI and FF with P, were used to assess hydrological similitude with other geographical regions. Then, in order to predict the erosion risk corresponding to a climatic condition of given return period, the applicability of the Extreme Value Type 1 (EV1) probability distribution to the annual values of the Fa,j index was tested by an at-site analysis. Finally, the descriptive ability of the EV1 distribution was investigated by a regional procedure.","PeriodicalId":13189,"journal":{"name":"Hydrological Processes","volume":"39 6","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/hyp.70181","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydrological Processes","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/hyp.70181","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Environmental Science","Score":null,"Total":0}

引用次数: 0

Abstract

In this paper, following the results of previous studies and using the monthly rainfall data of 13 sites in Burundi, a comparison between two different estimators (modified Fournier index MFI and F_F index) of the rainfall erosivity factor of the Universal Soil Loss Equation (USLE) was firstly developed. The theoretical relationships between MFI and the mean annual rainfall P and between F_F and P were tested by the available rainfall data. The constants K_m and K, linking MFI and F_F with P, were used to assess hydrological similitude with other geographical regions. Then, in order to predict the erosion risk corresponding to a climatic condition of given return period, the applicability of the Extreme Value Type 1 (EV1) probability distribution to the annual values of the F_a,j index was tested by an at-site analysis. Finally, the descriptive ability of the EV1 distribution was investigated by a regional procedure.

Abstract Image

查看原文本刊更多论文

在布隆迪应用的降雨侵蚀力估算器

本文在前人研究成果的基础上，利用布隆迪13个站点的月降雨量数据，首先对通用土壤流失方程（USLE）的降雨侵蚀因子的两种不同估算量（修正的Fournier指数MFI和FF指数）进行了比较。利用现有降水资料验证了MFI与年平均降雨量P、FF与P之间的理论关系。将MFI和FF与P联系起来的常数Km和K用于评估与其他地理区域的水文相似性。然后，通过现场分析，验证了极值1型（EV1）概率分布对Fa，j指数年值的适用性，以预测给定回归期气候条件下的侵蚀风险。最后，采用区域分析方法对EV1分布的描述能力进行研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Hydrological Processes 环境科学-水资源

CiteScore

6.00

自引率

12.50%

发文量

313

审稿时长

2-4 weeks

期刊介绍： Hydrological Processes is an international journal that publishes original scientific papers advancing understanding of the mechanisms underlying the movement and storage of water in the environment, and the interaction of water with geological, biogeochemical, atmospheric and ecological systems. Not all papers related to water resources are appropriate for submission to this journal; rather we seek papers that clearly articulate the role(s) of hydrological processes.