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首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >Predicting the effect of tilling practices on wind erosion activity: application of the Wind Erosion Prediction System in a sand drift area in The Netherlands
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Predicting the effect of tilling practices on wind erosion activity: application of the Wind Erosion Prediction System in a sand drift area in The Netherlands

机译：预测耕作方式对风蚀活动的影响：风蚀预报系统在荷兰沙丘流域的应用

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摘要

The inland drift sand area in The Netherlands forms a unique ecosystem in northern Europe, but is characterized by a rapid decline in both aeolian activity and area size. It is therefore necessary to investigate how the drift sand areas can be preserved, and how their immobilization by vegetation can be counteracted by introducing techniques that reactivate the aeolian processes. Four such techniques (rotary cultivator, beach sand cleaner, disc harrow and excavator) were evaluated during an 8-month experiment at Kootwijkerzand, The Netherlands. The effectiveness of the techniques to reactivate the aeolian processes was measured by investigating their effect on the horizontal sediment flux. Furthermore, the Wind Erosion Prediction System was used to simulate the effect of the different techniques, without the noise related to field measurements. Both field experiment and model simulation showed that the most effective method is the beach sand cleaner, followed by the rotary cultivator. Unlike measurement in the field, the model did not simulate any mass transport on the plot tilled with the excavator. Here incoming sediment could have initiated mass transport. In the case of the plot tilled with the disc harrow the model overestimated the transport. In reality, however. a surface layer with a high random roughness shows large variation in moisture content in space and time resulting in lower mass transport. Copyright (C) 2008 John Wiley & Sons, Ltd.
机译：荷兰的内陆流沙区在北欧形成了独特的生态系统，但其特征是风沙活动和面积迅速减少。因此，有必要研究如何保护流沙地区，以及如何通过引入重新激活风沙过程的技术来抵消植被的固定。在荷兰Kootwijkerzand进行的为期8个月的实验中，评估了四种此类技术（旋耕机，沙滩除砂器，圆盘耙和挖掘机）。通过研究风沙过程对水平沉积物通量的影响，来衡量该技术重新激活风沙过程的有效性。此外，风蚀预测系统被用来模拟不同技术的效果，而没有与现场测量相关的噪声。现场试验和模型仿真均表明，最有效的方法是沙滩除砂器，其次是旋耕机。与现场测量不同，该模型没有模拟耕种机在耕地上进行的任何质量迁移。在这里进入的沉积物可能已经开始了大规模的运输。在用圆盘耙耕种的地块中，模型高估了运输量。但是实际上。具有高随机粗糙度的表面层在空间和时间上的水分含量变化很大，从而导致较低的质量传递。版权所有（C）2008 John Wiley＆Sons，Ltd.

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