The analysis of the relation between land use and chemical runoff .

分析了土地利用方式与化学径流之间的关系。

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Chemical erosion rate has a positive correlation with runoff.

化学溶蚀速率与地表径流量呈正相关关系。

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A simple two-layer analytical model was developed to describe the process of dissolved chemical loss in surface runoff from the beginning of runoff occurrence.

本文根据地表径流中溶质流失的流动特征和物理规律，基于矢量合成概念，建立了二层解析模型，描述从降雨开始径流使水溶质在地表的流失过程。

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And no-till farming equates to fewer emissions, less soil erosion and less chemical runoff.

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Where lots of water, aggressive washing and sandpaper was once the norm for creating that worn vintage look, lasers and and ozone gas cameras are now being used to minimize water waste and chemical runoff.

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When teachers guide students in gaining awareness that industrial agriculture writ large, for example, results in chemical runoff from nitrogen-based fertiliers in the Mississippi River that in turn creates a massive dead zone in the Gulf of Mexico so large that it is visible to the human eye through satellite distant imaging, students are able to grasp the basis for sustainable agriculture.

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