基于实测数据的小流域分布式水槽模型土壤水分指数评价

IF 1.7 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Journal of South American Earth Sciences Pub Date : 2025-02-24 DOI:10.1016/j.jsames.2025.105416

Sofia Melo Vasconcellos , Masato Kobiyama , Aline de Almeida Mota

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引用次数: 0

摘要

本研究的目的是通过在巴西南部的Araponga河流域（5.26 ha）应用分布式版本的坦克模型（d -坦克模型）来确定土壤水分指数（SWI）的空间行为，并通过与测量的水张力值和水保持曲线估计的土壤水分进行比较来验证其可靠性。研究区具有降水、流量（间隔5 min）和土壤-水张力（间隔10 min）监测系统。仿真结果表明，D-Tank模型具有可靠的性能。SWI与HAND的相关性较好（r = 0.6），与Topographic wet Index的相关性较高（r = 0.88）。SWI的空间分布值与土壤湿度的比较证实了D-Tank模型获得的SWI在水文和环境科学预测方面具有很高的应用潜力。关键词：D-Tank模型，土壤水分指数，地形湿度指数，HAND，土壤水分

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Evaluation of Soil Water Index of distributed tank model in a small basin with field data

The objective of the present study was to determine the spatial behaviour of the Soil Water Index (SWI) by applying a distributed version of the Tank Model (D-Tank Model) to the Araponga river basin (5.26 ha) in southern Brazil and to verify its reliability through the comparison to soil moisture estimated with the measured water-tension values and the water retention curve. The study area has a monitoring system for precipitation, discharge (5- min interval), and soil-water tension (10-min interval). The simulation results showed that the D-Tank Model has a reliable performance. The correlation between SWI and HAND was reasonable (r = 0.6) meanwhile that between SWI and the Topographic Wetness Index was high (r = 0.88). The comparison between the spatially distributed values of the SWI and soil moisture confirmed the high potential of the SWI derived from the D-Tank Model to be applied for predictions related to hydrological and environmental sciences. Keywords: D-Tank Model, Soil Water Index, Topographical Wetness Index, HAND, Soil Moisture.

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来源期刊

Journal of South American Earth Sciences 地学-地球科学综合

CiteScore

3.70

自引率

22.20%

发文量

364

审稿时长

6-12 weeks

期刊介绍： Papers must have a regional appeal and should present work of more than local significance. Research papers dealing with the regional geology of South American cratons and mobile belts, within the following research fields: -Economic geology, metallogenesis and hydrocarbon genesis and reservoirs. -Geophysics, geochemistry, volcanology, igneous and metamorphic petrology. -Tectonics, neo- and seismotectonics and geodynamic modeling. -Geomorphology, geological hazards, environmental geology, climate change in America and Antarctica, and soil research. -Stratigraphy, sedimentology, structure and basin evolution. -Paleontology, paleoecology, paleoclimatology and Quaternary geology. New developments in already established regional projects and new initiatives dealing with the geology of the continent will be summarized and presented on a regular basis. Short notes, discussions, book reviews and conference and workshop reports will also be included when relevant.