Modelling pesticide input into surface waters in Germany

被引：0

作者：

Röpke, B ^{[1
]}

Bach, M ^{[1
]}

Frede, HG ^{[1
]}

机构：

[1] Univ Giessen, Dept Nat Resources Management, D-35392 Giessen, Germany

来源：

PESTICIDE BEHAVIOUR IN SOILS AND WATER | 2001年 / 78期

关键词：

D O I：

暂无

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

A GIS decision support system (DSS) is under development for estimating the magnitude and spatial distribution of pesticide losses from non-point sources (surface runoff, tile drainage and spray drift) in Germany. The cumulative annual losses of any active ingredient (a.i.) of known half-life (DT50), adsorption coefficient normalized for organic carbon (Koc) and dosage can be calculated for approximately 400 river basins covering the territory of Germany. Furthermore, the resulting predicted environmental concentration (PECSW) can be retrieved by relating the daily input of a.i. to the daily discharge of the respective streams. Results are visualized as grid maps with a 1x1 km(2) resolution. Site-specific maps of pesticide losses and PEC frequency distributions provide a basis for regional risk assessment of pesticides.

引用

页码：289 / 294

页数：6

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