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首页> 外文期刊>Acta Agronomica >Characterization and mapping of soil classes of the Lajeado Pessegueiro watershed in Santa Catarina, Brazil
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Characterization and mapping of soil classes of the Lajeado Pessegueiro watershed in Santa Catarina, Brazil

机译：巴西圣卡塔琳娜州Lajeado Pessegueiro流域的土壤类别表征和制图

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摘要

Pedological surveys and physiographic characterization of a watershed are fundamental procedures for planning the soil use. Thus, the aim of this study was to characterize and map the soil classes of the Lajeado Pessegueiro watershed, located in Guaruj?? do Sul, Santa Catarina, Brazil. The types of land use and occupation, slope classes and physiography of the study area were delineated and described. Data were collected from 19 complete soil profiles and 9 extra samples. Physiographic analysis was performed using prior information on the photopedology of the terrain geomorphological characteristics, climatic conditions, vegetation, land use and geological conditions. The watershed has a predominant undulating relief (406.51 ha). The predominant land use is agricultural, with temporary annual crops (50.09%). The predominant physiography is colluvial erosional slope (35.53%), followed by erosional slope (27.13%), plateau slope (21.55%), alluvial colluvial valley bottom (10.51%) and erosional collu-vial slope (5.23%). The soil classes found were Red Nitosols (37.54%), Haplic Nitosols (8.22%), Haplic Cambisols (35.20%), Fluvic Cambisols (3.92%), Red Argisols (10.09%) and Litholic Neosols (5.04%). The data showed the importance of using the physiographic analysis of the area with geoprocessing techniques, assisting pedological surveys with presentation through thematic maps. These maps serve as a base material in studies evaluating land uses, and those aiming to contribute to a better planning of soil use.
机译：对分水岭进行土壤学调查和地理特征描述是规划土壤利用的基本程序。因此，本研究的目的是表征和绘制位于瓜鲁日的Lajeado Pessegueiro流域的土壤类别并绘制地图。巴西圣卡塔琳娜州（Sul do Sul）。划定并描述了研究区域的土地利用和占用类型，坡度类别和地貌。从19个完整的土壤剖面和9个额外的样本中收集了数据。使用有关地形地貌特征，气候条件，植被，土地利用和地质条件的摄影学的先验信息进行生理分析。该分水岭具有起伏较大的起伏地形（406.51公顷）。土地的主要用途是农业，每年种植临时作物（50.09％）。主要的生理学特征是冲积坡度（35.53％），其次是冲蚀坡度（27.13％），高原坡度（21.55％），冲积河谷谷底（10.51％）和冲蚀性小河谷坡度（5.23％）。所发现的土壤类别为红色硝化溶胶（37.54％），Haplic Nitosols（8.22％），Haplic Cambisols（35.20％），Fluvic Cambisols（3.92％），Red Argisols（10.09％）和Litholic Neosols（5.04％）。数据显示了利用地理处理技术对该地区进行地貌分析的重要性，并通过专题地图的形式来协助进行生态学调查。这些地图是评估土地用途以及旨在更好地规划土壤用途的研究的基础资料。

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