降雨对小新村断面水质的影响及汛期污染强度分析

文章以小新村断面为研究对象,利用自动站数据研究2022年9月降雨对水质的影响,分析污染强度。结果显示,降雨量与CODMn相关性较差,与NH3-N、TP浓度呈正相关。降雨后1到2天,NH3-N、TP浓度日均值明显升高;降雨结束7天后,NH3-N、TP浓度降至前期水平。在台风“梅花”过境强降雨后,NH3-N浓度上升79.2%;TP浓度上升62.7%。此外,文章对汛期断面污染强度进行计算,分析了污染原因,并针对性地提出5项措施。

元谋干热河谷小新村流域生态村建设的实践

根据元谋干热河谷小新村流域高温干旱、生态环境脆弱、农村经济贫困、农业农村产业结构单元化及种植体系不合理的现状,应用小流域生态综合治理技术与试验示范,以小流域为单元,选择小新村为试验示范村,采用"科研院所+地方政府+农户"参与式方法,开展生态村建设。实践证明:小新村流域生态村建设,提高农户的生态环境建设与保护的意识和人文素质,增加生态建设的科技含量,改善流域生态环境,实现乡村村容村貌整洁,提高农村经济,促进人与自然和谐发展,实现流域可持续发展。

元谋县小新村新农村建设实践与思考

以新农村建设主体的村落为视角,对元谋小新村新农村建设实践中取得成效和存在问题进行了思考和研究。

某铅锌矿大气总悬浮微粒中铅、镉、砷富集情况初步研究

本文用 Gordon 等提出的富集因子方法,研究某铅锌矿所在地区大气总悬浮微粒的化学特性,指出大气中铅、砷、镉等主要污染物的来源,以及随气象条件、地区不同的变化规律,为评价这一地区大气质量、控制和消除主要污染物提供可靠的依据。

How selected primary schools in rural New Zealand manage their financial resources of limited government funding in order to effectively meet their schools objectives

This study evaluates the extent to which primary schools in a region of New Zealand are challenged by limited funds to enable the effective management and performance of their school. The study involved interviews with school principals and analysis of their schools＇ financial statements. The aim of this project is to gain a current understanding of the issues and challenges facing primary schools in a defined region （Waikato） to see whether the trends identified in national research studies, confirms the problem that schools are underfunded. The results of the current study identified the issues experienced by the Waikato schools and in most cases supported previous research findings. The findings of the current study also suggest that schools share the dilemmas associated with limited government funding and rely significantly on local funding sources to achieve their basic objectives. Although schools may be effective in the management of their school objectives, there is more government funding required to relieve the pressures and challenges.