Index System of Lake Health Assessment and Its Application on 5 Lakes in Southern Jiangsu Province

来源 :35th IAHR World Congress(第三十五届国际水利学大会) | 被引量 : 0次 | 上传用户:xp108999
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A lake play an important role on local social and economic sustainable development.But in recent years, there were still numerous contradictions between protection and exploitation, Causing serious damages to ecological conditions on lakes.
其他文献
带钢广义板形包括平直度和横向厚差。热轧来料横向厚差直接影响冷轧带钢板形。本研究以梅钢新建1420mm 冷连轧机组为应用载体,针对薄带钢冷连轧板形控制特点,从热轧来料带钢横向厚差与平直度综合检测技术、冷连轧机板形数学模型和自动控制模型等方面进行创新,研究开发了新型的冷连轧机板形控制系统。新板形控制系统自2009年7月投入在线调试和运行,系统运行平稳、可靠,截止到2011年2月底,已累计生产各类冷轧薄
针对热镀锌汽车板表面的锌花缺陷,研究了锌花形貌的分类。并结合首钢实际生产,对锌液中合金元素、镀锌板冷却速度以及平整变形量等热镀锌工艺参数对锌花形貌的影响进行了系统分析。这对今后控制热镀锌汽车板表面锌花形貌有重要的指导意义。
研究了利用电化学检测技术进行判定冷轧汽车板磷化膜的质量。利用恒电流/恒电位仪,测试磷化膜在磷酸盐溶液中的开路电位与时间的关系曲线,根据该曲线出现拐点的时间来判定磷化膜的质量。研究结果显示:拐点出现的时间t≤300s 时,磷化膜质量差;拐点出现时间300s<t≤700s 时,磷化膜质量一般;拐点出现时间700s<t ≤1000s 时,磷化膜质量好;拐点出现时间t>1000s 时,磷化膜质量很好。
An overview of the diversified and modular portfolio of Danieli thin slab rolling technical solutions and lay outs,from “first generation plants” to the current, outstanding record-breaking performanc
会议
粗煤气铁矿颗粒床高温除尘联产DRI工艺技术,可以将钢铁、化工两个行业连接的起来,CO2可以作为化工产品的碳氧资源加以利用。钢铁化工产品联产可以将钢铁生产排放的CO2以最短的流程、低能耗、低成本、高效益回收利用。利用粗煤气显热生产DRI,不计粗煤气显热能耗仅为218kgce/tFe,可以大幅度的降低炼铁能耗和成本。DRI—颗粒床除尘比炼铁系统—布袋除尘节水约2t(H2O)/tFe。由于DRI 生产是
The heavy metals in the dredged sludge from the water conservation projects have been paid more attention in terms of environment protection.The Xinbian river is located at the north of Anhui province
The rural hydropower stations play an important role in satisfying the requirements of electricity for rural working and living conditions.
Runoff in Fenhe catchment, which is located in the middle Yellow River catchment, decreases sharply in recent years.The earliest drought happened in 1958 in the Yitang hydrological station in the midd
Heavy metals in sediments from Zhangweinan Canal were detected by ICP-MS.The results indicated that the distribution characteristics of heavy metals, including Cu, Zn, Pb, As and Cr, were in the simil
water temperature in reservoir is heterogeneously distributed in 3D space, has a complex structure of dynamic change with the time, and exerts a profound influence to the ecological system in the rese