Existence of charcoal fragments in sedimentary basaltic volcanoclastic rock and its implication in geology , in longtan formation of southwesten guizhou 黔西南地区龙潭组玄武质火山碎屑岩中木炭碎屑的存在及地质意义
Established on october of 2002 , nanjing branch is a new branch , located close to xuan wu lake , jiu hua mountain and zi jin mountain Edri南京分院是于二二年十月新成立的一个分院，地处美丽的玄武湖畔九华山麓紫金山旁。
Because of the nutrient load both inside and outside , xuanwu lake became a eutrophic lake ; eutrophication is going to be more serious in the f uture 在巨大的营养盐内外负荷压力下，玄武湖处于严重富营养化状态，且存在恶化的趋势。
The three - star nanjing jiangsu hotel , north of gulou square in the heart of the city , is about 10 minutes by taxi from nanjing s dock and 45 minutes from the airport 江苏大酒店是一座三星级旅游涉外饭店，位于市中心鼓楼广场北侧，距地铁出口500米，步行至湖南路商业街5分钟玄武湖10分钟。
In ancient times , the day was divided into north and south , east and west four ancient palace respectively to tsing lung ( black dragon ) , the white tiger , rosefinch , black ( a turtle of god ) name 在上古时代，古人把天分为东西南北四宫，分别以青龙(苍龙) 、白虎、朱雀、玄武(一种龟形之神)为名。
This thesis belongs to the program " research on wetland ecosystem restoration and wetland plant community constructional technology in xuanwu lake " . this program comes from nanjing science commission 论文分为：上篇“玄武湖湿地高等植物群落恢复基础研究”和下篇“玄武湖湿地高等植物群落恢复规划方案” 。
The nanjing new century hotel is a brand new 4 - star hotel located in the xuanwu district , near the beautiful xuanwu lake and facing the purple mountain and zhongshan scenic area . " service first , guests formost " is our motto and we will surely make you feel at home 江苏新世纪大酒店隶属于省电信实业集团有限公司，坐落在风景秀丽的玄武湖畔，面对钟山风景区，毗邻南京火车站和国际会展中心，环境优美，交通便捷，是一座国际四星级旅游饭店。
From the change of the analysis target of the water and the sediments in these years , we can see that these measures that take place in these years only make a little improvement on the degradation problem . these measures cannot change the trend of wetland ecosystem degradation 根据对玄武湖水体和沉积物的监测指标的多年变化分析发现，玄武湖近年来所采取的整治措施对于湿地的污染退化问题只起了短暂的改善作用，无法扭转整个湿地生态系统退化的趋势。
Therefore , we must restore the lose part of the wetland ecosystem - wetland higher plant community , make the wetland construction rational , then can we achieve the aim of holding back the degradation of wetland ecosystem , solve the problem of environment pollution 因而必须从恢复生态学的角度出发，完善湿地生态系统的结构，人工恢复玄武湖湿地生态系统缺失的重要构成成分?湿地高等植物群落，最终起到阻止湿地生态系统继续退化、治理湿地环境污染的作用。
" restoration plan of wetland higher plant community in xuanwu lake " discusses the tenet and principle of the restoration of wetland higher plant community in xuanwu lake , collects the basis of choosing of the wetland higher plant communities from four angles , controlling pollution , landscape succession , beautifying environment , economic utilization . then on the basic of the environment characteristic of the xuanwu lake and the characteristic of the vegetative form and the distribution pattern of wetland plant community , we choose the suitable wetland plant population ; make the plan of the topographical reformation and wetland plant community construction “玄武湖湿地高等植物群落恢复规划方案”讨论了玄武湖湿地高等植物群落恢复的原理与原则，从治理污染、景观演替、观赏美化和经济实用的角度研究收集了植物群落的选择依据，进而根据玄武湖湿地独特的生态环境特点、湿地植物群落特殊的生活型及分布方式，确定了适宜的湿地高等植物种群，同时也确定了玄武湖湿地植物群落恢复试验区湖底地形的改造方案、植物群落的配置和种植方式。
