• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Towards a landscape scale management of pesticides: ERA using changes in modelled occupancy and abundance to assess long-term population impacts of pesticide
【2h】

Towards a landscape scale management of pesticides: ERA using changes in modelled occupancy and abundance to assess long-term population impacts of pesticide

机译：迈向农药的景观尺度管理：ERA利用建模占用率和丰度的变化来评估农药对人口的长期影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Pesticides are regulated in Europe and this process includes an environmental risk assessment (ERA) for nontarget\udarthropods (NTA). Traditionally a non-spatial or field trial assessment is used. In this study we exemplify\udthe introduction of a spatial context to the ERA as well as suggest a way in which the results of complex models,\udnecessary for proper inclusion of spatial aspects in the ERA, can be presented and evaluated easily using abundance\udand occupancy ratios (AOR).Weused an agent-based simulation system and an existing model for awidespread\udcarabid beetle (Bembidion lampros), to evaluate the impact of a fictitious highly-toxic pesticide on\udpopulation density and the distribution of beetles in time and space. Landscape structure and field mamanagement were evaluated by comparing scenario-based ERAs for the beetle. Source-sink dynamics led to an\udoff-crop impact even when no pesticide was present off-crop. In addition, the impacts increased with multiyear\udapplication of the pesticide whereas current ERA considers only maximally one year. These results further\udindicated a complex interaction between landscape structure and pesticide effect in time, both in-crop and offcrop,\udindicating the need for NTA ERA to be conducted at landscape- and multi-season temporal-scales. Use of\udAOR indices to compare ERA outputs facilitated easy comparison of scenarios, allowing simultaneous evaluation\udof impacts and planning of mitigation measures. The landscape and population ERA approach also demonstrates\udthat there is a potential to change from regulation of a pesticide in isolation, towards the consideration of pesticide\udmanagement at landscape scales and provision of biodiversity benefits via inclusion and testing of mitigation\udmeasures in authorisation procedures.
机译：欧洲对农药进行了管制，该过程包括针对非靶标/节肢动物（NTA）的环境风险评估（ERA）。传统上，使用非空间或现场试验评估。在这项研究中，我们举例说明了\ ud向ERA引入空间语境，并提出了一种方法，可以使用复杂的模型方便地呈现和评估复杂模型的结果，而这些模型对于将ERA正确地包含在ERA中是必要的。我们使用基于代理的模拟系统和现有的广泛\ udcarabid甲虫（Bembidion lampros）模型，以评估虚拟的剧毒农药对\ ud人口密度和甲虫分布的影响和空间。通过比较基于场景的甲虫ERAs，评估了景观结构和田间管理。即使没有农作物外的农药，源库动态也会导致\ udoff农作物的影响。此外，随着农药的多年使用，其影响增加，而目前的ERA认为最长只能使用一年。这些结果进一步表明，在作物内和作物外，景观结构和农药在时间上的作用之间存在复杂的相互作用，这表明需要在景观和多季节的时间尺度上进行NTA ERA。使用\ udAOR指数比较ERA输出有助于轻松比较方案，从而可以同时评估\ udof影响和规划缓解措施。景观和种群的ERA方法也表明\ ud有可能从孤立的农药管制转变为在景观规模上考虑农药\管理和通过在授权程序中包含和测试缓解措施/ ud措施来提供生物多样性惠益的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号