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首页> 外文期刊>Ciência e Agrotecnologia >Agricultural watershed modeling: a review for hydrology and soil erosion processes
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Agricultural watershed modeling: a review for hydrology and soil erosion processes

机译：农业流域建模：水文学和土壤侵蚀过程的回顾

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摘要

Models have been used by man for thousands of years to control his environment in a favorable way to better human living conditions. The use of hydrologic models has been a widely effective tool in order to support decision makers dealing with watersheds related to several economic and social activities, like public water supply, energy generation, and water availability for agriculture, among others. The purpose of this review is to briefly discuss some models on soil and water movement on landscapes (RUSLE, WEPP, GeoWEPP, LASH, DHSVM and AnnAGNPS) to provide information about them to help and serve in a proper manner in order to discuss particular problems related to hydrology and soil erosion processes. Models have been changed and evaluated significantly in recent years, highlighting the use of remote sense, GIS and automatic calibration process, allowing them capable of simulating watersheds under a given land-use and climate change effects. However, hydrology models have almost the same physical structure, which is not enough for simulating problems related to the long-term effects of different land-uses. That has been our challenge for next future: to understand entirely the hydrology cycle, having as reference the critical zone, in which the hydrological processes act together from canopy to the bottom of aquifers.
机译：人类已经使用模型数千年，以一种有利于改善人类生活条件的方式来控制环境。水文模型的使用已成为一种广泛有效的工具，以支持决策者处理与几种经济和社会活动有关的流域，例如公共供水，能源生产和农业用水等。这篇评论的目的是简要讨论一些景观上的土壤和水分运动模型（RUSLE，WEPP，GeoWEPP，LASH，DHSVM和AnnAGNPS），以提供有关它们的信息，以适当的方式帮助和服务，以讨论特定的问题与水文和土壤侵蚀过程有关。近年来，模型已经发生了很大的变化和评估，突出了遥感，GIS和自动校准过程的使用，使它们能够在给定的土地利用和气候变化影响下模拟流域。但是，水文模型具有几乎相同的物理结构，不足以模拟与不同土地利用的长期影响有关的问题。这是我们未来的挑战：要完全了解水文循环，并以临界区为参考，在该临界区中，水文过程从顶盖到含水层的底部共同起作用。

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