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首页> 外文期刊>Soil Science Society of America Journal >Importance of Soil Organic Matter Fractions in Soil-Landscape and Regional Assessments of Pesticide Sorption and Leaching in Soil
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Importance of Soil Organic Matter Fractions in Soil-Landscape and Regional Assessments of Pesticide Sorption and Leaching in Soil

机译：土壤有机质组分在景观中的重要性以及农药在土壤中的吸附与淋溶的区域评价

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摘要

Agricultural policy frameworks aim to develop scientifically sound measures that can be used to assess the environmental performance and risks associated with agricultural systems. As part of this assessment, pesticide leaching models are applied at large scales to assess the risk of pesticide groundwater contamination across soil series, agricultural fields, watersheds, or regions. Measurements of pesticide sorption by soil are among the most sensitive input parameters in pesticide leaching models. Soil organic matter (SOM) is the single most important soil constituent influencing pesticide sorption in soils. The interaction of pesticides with SOM is often studied in the laboratory using batch-equilibrium experiments in combination with techniques that quantify chemical and structural characteristics of SOM. This paper reviews these laboratory studies and discusses their importance to the development of agricultural policy frameworks. This review paper was written as part of a symposium on "Meaningful pools in determining soil C and N dynamics" which was held by the SSSA and the Canadian Soil Science Society during the 2004 ASA-CSSA-SSSA International Annual Meetings in Seattle, WA.
机译：农业政策框架旨在科学地制定健全的措施，这些措施可用于评估环境绩效和与农业系统相关的风险。 评估，大规模应用农药浸出模型 评估土壤系列，农田，流域， 或地区农药地下水污染的风险。在农药浸出模型中，测量农药对土壤的吸附是最敏感的输入参数。 土壤有机质（SOM）是最重要的土壤 影响农药在土壤中吸附的成分。通常在实验室中使用 批平衡实验结合量化SOM化学和结构特征的技术 来研究农药与SOM的相互作用。 。 本文回顾了这些实验室研究，并讨论了其对农业政策框架发展的重要性。 本文是作为研讨会的一部分撰写的。 SSSA和加拿大土壤科学学会在2004年 ASA上举行的“有意义的 池确定土壤碳和氮动力学”在华盛顿州西雅图市召开的CSSA-SSSA国际年会。

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