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设计和建立自然保护区管理信息系统的探讨 总被引:1,自引:0,他引:1
1引言自然保护区管理信息系统是自然保护区管理科学发展的一个重要领域。管理信息系统通过计算机辅导的系统化,将管理的计划、实施和控制3个阶段的功能高度地统一,即由人、计算机等组成进行管理信息的收集、传递、贮存、加工、维护和使用的系统。该系统连接计算机进行信息处理,使最优管理成为可能,并能及时、正确地提供经济信息,预测自然保护区的各种运行情况,实现最佳决策和规划目标。随着技术经济的迅速发展,管理信息系统是现代化管理的关键因素,对自然保护区事业的发展和有效地管理具有重要作用。自然保护区的管理信息是对保护区… 相似文献
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美国环保局危险废物填埋场设计和建筑最低技术要求是国会在1984年危险固体废物修正案中提出的。国会要求所有新填埋场和地表蓄水池都具有双衬层和沥滤液收集、去除系统。为了响应国会的命令,美国环保局出版了系统设计的有关规定和导则。另外,还出版了建筑质量保证程序和最终覆盖的导则,至今这些要求和导则仍在使用,现将其主要参数和要求列举如下,供我国各地筹建危险废物安全填埋场时参考。一、双衬层系统下图是危险废物填埋场的示意图。在双衬层填埋场中,有两层衬层和两层沥滤收集、去除系统(LCRS)。初级沥滤液收集、去除系统… 相似文献
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本文开展了适用于某型直升机平台的机载超短波电台结构设计,从结构总体设计、电气互联设计、散热设计、抗冲振性能设计、三防设计等角度,全方位的阐述了设备的结构设计过程,可为同类设备的结构设计提供借鉴。 相似文献
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活动案例1关于使用塑料制品利与弊的探讨目标:通过本课的学习,学生能够:1.识别几种主要的塑料制品,列举出其主要的性质和用途。2.说出什么是白色污染及其主要危害。3.通过头脑风暴,寻找各种解决白色污染可能的方法和途径;利用提供的资料,了解科学家解决这一问题的思路和前景。年级:7~9年级。步骤:1.角色扮演:小品《购物》一位售货员(由学生扮演)站在桌子后面,桌面上摆放一些由学生提供的生活、学习用品。由学生扮演的顾客甲、乙、丙、丁依次前来购物。◎顾客甲(无所谓型):选好东西,接过售货员递给的塑料袋,把… 相似文献
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城市污水处理正处于蓬勃发展的时期,每年耗资巨大,如何更好地使来之不易的投资取得良好的效益,本刊特请中国国际工程咨询公司沈光范教授就城市污水处理厂应注意建设规模和工艺选择撰写此文,供参阅。 相似文献
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Trametes versicolor decolorized 2000 mg L(-1) of the mono-azo substituted naphthalenic dye Amaranth with no dye sorption observed visually. The changes in the toxicity were assessed over a period of 30 d for the dye-treated viable culture, control (no dye added), and a boiled culture treated with dye, using the Microtox Acute Toxicity assay. Before dye addition, the culture filtrate had some toxicity, which increased after the dye addition. The toxicity of the dye-treated culture decreased during the treatment. The loss of toxicity occurred at the same time, with the loss of color suggesting that detoxification is associated with decoloration. The change in pH was due to natural metabolic processes and had a small effect on detoxification. Because the toxicity of the treatment was similar to that of the control at the end of the treatment, the effluent seems to be safe for release into the environment, potentially rendering this treatment suitable for industrial application. 相似文献
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城镇化是推动我国经济社会发展的重要动力,在高速发展的同时,带来大量污染排放,威胁乡村环境质量与可持续发展。在对乡村生态环境问题剖析的基础上,从战略、实施、方式等层面探索解决思路,围绕科学规划、发展方式、基础建设、管理机制、宣传教育等方面分析关键点,加强乡村环境保护,保障城镇化建设健康发展,为促进农村农业持续发展提供持久动力。 相似文献
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泵站树状给水管网流量具有随机性,而这种随机性变化会直接影响管网的建设费用和动力费用.针对这-特点,应用随机规划原理,建立泵站树状给水管网机会约束模型,编写基于随机模拟的遗传算法程序求解该模型.机会约束模型能较客观地反映该管网的实际工况,使优化设计结果更符合实际. 相似文献
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阐释了信息产业专门化街区的内涵,结合对合肥市黄山路信息产业专门化街区构成要素的分类及其邻近度的分析,分别从空间结构演化、景观演化、功能演化三方面阐述了合肥市黄山路由"电子一条街"向"信息产业专门化街区"的总体演化阶段,探讨了信息产业专门化街区的未来发展趋势。 相似文献
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Günay Kocasoy 《Environmental management》1989,13(4):469-475
The increase in the number of tourists visiting a coast is desired by most of the countries for economic reasons. However, this increase in tourism may cause pollution of the sea. This can be only avoided by proper planning and by predicting the carrying capacity of the coast in terms of sea pollution. This is especially important for developing countries where part of the wastewater is discharged without any treatment into the sea.In the present study the beaches were classified according to their use — and consequently the amount of waste discharged into the sea — into four groups: (1) coasts that are used only for swimming and recreational purposes; (2) coasts used simultaneously for dwelling, swimming, and recreational purposes; (3) coasts along which only dwellings exist; and (4) natural and man-made harbors, i.e., coasts used as shelters. During the survey,40,320 observations were made between December 1985 and February 1988 to determine the effect of the number of tourists on seawater quality. The results obtained were analyzed by a multilinear regression program to obtain an empirical equation giving the extent of the sea pollution in terms of coliform concentration as a function of population density and some other environmental factors.The equations derived in this study enable the determination of the carrying capacity of a beach in terms of pollution as well as the expected degree of pollution corresponding to a given population density. Furthermore, it allows the prediction of the extra carrying capacity that can be obtained by improving the waste-disposal conditions. 相似文献
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