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首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >The influence of plant cover and land use on slope-channel decoupling in a foothill catchment: a case study from the Carpathian Foothills, southern poland
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The influence of plant cover and land use on slope-channel decoupling in a foothill catchment: a case study from the Carpathian Foothills, southern poland

机译：植物覆盖和土地利用对山麓集水区坡道解耦的影响：以波兰南部喀尔巴阡山脉丘陵为例

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摘要

This paper examines the influence of plant cover and land use on slope-channel decoupling in the Stara Rzeka Stream catchment (22.4 km~2) and its subcatchment Dworski Potok Stream (0.3 km~2). The Stara Rzeka catchment is situated in the marginal part of the Carpathian Foothills and is characterized by a relief of low and medium hills. The catchment is used for agriculture but unlike other foothill catchments, it has a relatively extensive unfragmented area of forests (41.3 per cent). Grasslands and pastures (13.8 per cent) are mainly along the broad and flat valley floor. In the cultivated area (38.5 per cent) of the northern low hill part of the catchment, the fields are long, narrow and separated by boundary strips. They stretch from the hilltops to the valley bottom and are traditionally ploughed along the slopes. The research into slope wash was carried out at six sites downslope (August 1989 to October 1990) and on experimental plots (1989-1991). Transport of suspended matter was determined in the channels of the Stara Rzeka and Dworski Potok Streams (1987-1991). The results show that transport and export of the material on the slopes depend on the morphology of the slope and on the agricultural use of the area. The mosaic of fields which are used differently makes the soil wash process very intensive only if the slopes are ploughed and unprotected by a dense cover of vegetation. The material displaced is mostly accumulated at the foot of the slopes or at the bottom of the valley. Footslope areas and flat valley bottoms covered with grass function as a barrier separating the slope and the river bed. These features generally negate the transfer of slope-originated material to the bed of the stream.
机译：本文考察了Stara Rzeka溪流域（22.4 km〜2）及其子汇水区Dworski Potok溪流（0.3 km〜2）中植物覆盖和土地利用对坡道解耦的影响。 Stara Rzeka集水区位于喀尔巴阡山脉丘陵的边缘，其特征是低丘和中丘陵。该集水区用于农业，但与其他山麓集水区不同，它有相对广阔的未分割森林面积（41.3％）。草原和牧场（13.8％）主要分布在宽阔而平坦的山谷地带。在该流域北部低丘部分的耕地面积（38.5％）中，田地长而狭窄，并被边界条隔开。它们从山顶延伸到山谷底部，传统上是沿着山坡耕作的。在下坡的六个地点（1989年8月至1990年10月）和实验区（1989-1991年）进行了边坡冲刷的研究。在Stara Rzeka和Dworski Potok河（1987-1991）的河道中确定了悬浮物的运输。结果表明，斜坡上物质的运输和出口取决于斜坡的形态和该地区的农业用途。仅当斜坡被没有茂密的植被覆盖且没有保护的情况下，不同方式使用的田地马赛克才使土壤洗涤过程变得非常密集。流离失所的物质大部分堆积在斜坡的脚下或山谷的底部。山麓地区和平坦的山谷底部被草覆盖，起到了隔离斜坡和河床的屏障的作用。这些特征通常消除了源自斜坡的材料向流床的转移。

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