输变电工程的环境保护

论述了我国输变电工程环境保护评价体系,分析了输变电工程施工期和运行期的环境影响,提出了输变电工程各阶段环境保护措施,对今后进一步做好输变电工程环境保护工作提出建议。     

基于电力结构调整的上海市电力行业大气污染物排放总量研究

基于上海市能源与电力统计数据,参考政府间气候变化专门委员会(IPCC)及国内发电企业污染物排放相关研究报告,设定不同发电方式的装机比例,分析核算不同装机比例下SO2、NOX以及CO2的排放量与减排量。结果表明,装机比例提升10.0%,相比煤电装机,天然气装机的SO2、NOX及CO2的排放量分别降低90.2%、91.3%与99.9%,减排效果显著。新能源装机比例由5.0%提升至10.0%,SO2、NOX及CO2分别削减3.0×103、3.8×103、3.6×107 t。     

运用分子轨道理论考察甲酚的生物降解特性

运用分子轨道理论考察了甲酚同分异构体的生物降解特性。计算出最高占据轨道（HOMO）能量的大小,反映了甲酚同分异构体生物降解反应的难易程度,且结论与事实相符合。     

污水处理构筑物结构方案优化与工程造价经济指标分析

污水处理构筑物如储液池结构设计比较复杂,造价较高,应对其结构型式进行多方案比较及优化,其优化的结果在工程造价方面应得到较好的经济指标。     

重庆三峡库区鸟类生物多样性研究

通过1996－1997年的调查,记录三峡工程重庆库区鸟类293种,分属17目45科,159属,比文献记录新增加33种,其中重庆市鸟类新记录9种。鸟类区系成分以东洋界为主体。国家重点保护动物29种,Ⅰ类2种,Ⅱ类27种;除红腹锦鸡种群数量较多外,其余都较稀少。从分布上看,库区东段的种类和数量比西段多;海拔1200m以上物种丰富;1200m以下为强度农耕区,种类较为贫乏,主要是一些与人为活动相关的种类。表1参9     

防灾工程项目评估的基本问题

在分析防灾工作项目特点的项目上,提出了防灾工程项目评估的基本原则,对并防灾工程项目效益和费用的确认与计量问题进行讨论,为进一步研究防灾工程项目评估理论和方法奠定了基础。     

The Natural Vegetation Responses to the Groundwater Change Resulting from Ecological Water Conveyances to the Lower Tarim River

This paper takes the ecological water conveyance project (EWCP) that transfers water from the Bosten Lake, to Daxihaizi Reservoir, and finally to the Taitema Lake as a case study to analyze the dynamic change of the groundwater depth, the vegetation responses to the elevation of the groundwater depth as well as the relationship between the groundwater depth and the natural vegetation. The results from many years’ monitoring in field indicate: (1) the groundwater depth has been elevating gradually with the increase in the times of watering and the elevation range has been expanding continuously in the lower reaches of Tarim River. Correspondingly, the natural vegetation has a favorable response to the elevation of the groundwater depth. The change of the natural vegetation has accordance with that of the groundwater depth. Such facts not only show that groundwater is a key factor to the growth of the native vegetation but also prove it is feasible that the degraded ecosystem can be restored and protected by the EWCP; (2) the results of analysis of the spatial-temporal response of the natural vegetation to watering reveals that the beneficial influence of the EWCP on the ecosystem in the lower Tarim River is a long-term process; (3) in terms of the function and structure of ecosystem after watering in the lower reaches of Tarim River, the EWCP does not still reach the goal of ecological restoration at a large spatial scale at present. Based on such monitoring results, some countermeasures and suggestions for the future restoration strategy are proposed so as to provide a theoretical basis for restoring and protecting the ecosystem in Tarim River, and meanwhile it can also provide some scientific references for implementing the similar ecological projects in other areas.     

基于电生理信息的两种桑科植物叶片细胞代谢能比较

植物的细胞代谢能可以表征植物的生理活性和源库状况,而植物的细胞代谢能可由细胞的生理电容、生理电阻和生理阻抗来表征.本研究以桑科植物构树(Broussonetia papyrifera)和桑树(Morus alba)为例研究了不同夹持力下生理电阻、生理阻抗和生理电容的特征.先依据吉布斯自由能方程和Nernst方程构建模型...     

项目竣工环境保护验收监测方案制定中若干问题的探讨

从确定监测因子、评价标准、分析方法3个方面简述了项目竣工环境保护验收监测方案制订中的原则、要求、难点、重点,对标准、分析方法的选用,对实际工作中常发生的问题进行了剖析,并提出相应的解决办法。     

基于环保竣工验收对建设项目环评的思考

结合建设项目环境保护竣工验收实际案例,指出了在依据环评文件进行环保竣工验收经常遇到的问题。提出环境影响评价单位应基于经济技术可行性、实际可操作性提出环保措施,合理识别预测污染因子等反馈意见;环保审批部门应在环评单位与环保验收单位之间建立起交流、沟通的渠道,以更好地把好环评审批和环保验收审批两个关。