辽宁省第一次全国水利普查经济社会用水台账建设存在的问题及对策

总结了辽宁省第一次全国水利普查中经济社会用水台账建设措施,并分析其存在的问题,提出对策,以期为水利普查提供参考。     

Census and effective population sizes of white‐spotted charr (Salvelinus leucomaenis) in a fragmented landscape

Several habitat models have been proposed to predict population size for stream fishes and to guide habitat assessment and monitoring techniques. However, most models do not incorporate the potential advantage of molecular genetic markers. We conducted a field survey and microsatellite DNA analyses to quantify the relationships among genetic diversity, census/effective population size and habitat variables in fragmented populations of white‐spotted charr (Salvelinus leucomaenis). The census population size significantly increased with the stream length, the number of pools and a pool‐riffle sequence index, a proxy for channel‐unit habitat type complexity within reaches. Population density was correlated with the pool‐riffle sequence index only. Genetic diversity and effective population size were not correlated with the habitat variables or census population size. There was a lack of isolation‐by‐distance population structure in the studied populations. Our results suggest that stream length and the number of pools within reaches associated with habitat complexity are the habitat variables that explain the majority of variation in population size of white‐spotted charr. Our findings provide further evidence that census population size per se is a poor indicator of the inclusive genetic diversity within populations in a fragmented landscape.     

我国碳排放研究现状的文献计量分析

运用文献计量学方法考察1989~2010年公开发表在CNKI、维普和万方三大数据库的我国碳排放研究文献,较为系统地分析我国碳排放研究发文年度分布、期刊分布、高产作者及引文分布等问题,同时通过关键词统计分析,初步揭示出碳排放研究的新方向。     

河南省河流普查成果分析与评价

主要是对河南省河流普查成果进行简要分析和评价,主要内容包括河流普查成果概述及山地河流特征分析.对河南省境内普查河流的河流长度和流域面积的关系、河流比降的区域分布进行了简要分析,并在河流长度、流域面积和河流数量等方面与以往的资料内容进行了对比分析.总之,该次河湖普查成果取得了很大成就,但仍然存在一些问题.     

水利普查台账建设对象取水量计量方法

分析了目前全国水利普查台账建设过程中存在的诸如认识与协调不平衡、缺少计量设施、建筑业用水台账建设困难等问题。从台账建设对象取水量计量方面入手,选取多个典型地区,对其在该领域所采取的计量方法进行研究,同时对水利普查台账建设下阶段工作任务提出建议。     

How geographically concentrated is poverty in Fiji?

In this paper, we present highly disaggregated estimates of expenditure‐based poverty in Fiji using data from the 2007 national census and 2008–2009 Household Income and Expenditure Survey. Predicted poverty is estimated at provincial and tikina levels. Poverty in Fiji is marked by considerable spatial heterogeneity that cannot be gauged by the division level household survey estimates revealing pockets of poverty even within relatively well‐off regions. Predicted poverty is highest in Cakaudrove province in Northern Division. Most strikingly, we find that 50% of all the poor in Fiji are concentrated in just 6 out of 85 tikinas, namely Suva, Labasa, Ba, Naitasiri, Vuda and Nadi. This finding has important implications for efficiency of targeted poverty alleviation programmes. We also focus on squatter settlements for which poverty headcount estimates using the Household Income and Expenditure Survey are not feasible. We find these settlements have rates of poverty headcount ratio that range from 38–55% depending on the Division the squatter settlement is located in; this range is significantly higher compared with the average urban poverty estimated at 26% and raises important social policy issues for addressing urban poverty.     

石家庄市居住区绿化调查研究

对石家庄市裕华区25个居住区进行了绿化普查。调查表明,裕华区居住小区绿化存在居住区绿地率偏低、绿化形式单一、树木种类偏少、整体养护水平低、居民绿地保护意识淡薄等问题。针对存在问题提出供选择应用的绿化树种100余种,以及丰富和优化绿化树种配置、进行居住区绿化补种、加强居住区屋顶绿化和阳台绿化、加强居住区绿地养护管理和绿化功能作用宣传教育等措施。     

长江经济带连片特困区的发展现状:基于地理国情普查成果分析

为我国长江经济带连片特困区的可持续发展提供参考,在地理国情普查成果中,提取水资源、土地资源、交通资源和生态资源空间要素,结合社会经济统计数据,采用空间统计方法,测算长江经济带连片特困区的人口密度、经济发展水平等,并对其自然条件和空间开发程度进行评价。结果表明:长江经济带连片特困区以坡度较大、生态质量较好的生态空间为主,水资源普遍缺乏,空间开发适宜度低或较低;经济发展整体处于较低水平,经济发展水平值均低于全域均值;该区域保护指向性强,不适宜大规模工业化和城镇化开发。     

东洞庭湖鱼类寄生虫区系调查报告

系统调查了东洞庭湖鱼类寄生虫区系,42种鱼类的寄生虫共有117种,分别隶属于38科50属9纲23目,较详细地研究了该区系寄生虫对寄主的感染情况及其在鱼体的分布频率,可为湖区的鱼病防治和有关寄生虫方面的研究提供参考.     

THE GROUND CENSUSES ON RED-CROWNED CRANE IN KHANKA LAKES DISTRICT OF CHINA

Coordination of the aenal servey,the author carried ground census on the popula-tion size of Red-erowned crane(Grus japonensis)in Khanka Lakes District from 1984 to 1986.Ac-cording to the census in spring of 1984,the total number of Red-crowncd crane is 72 individualsand 20 nests.So that this pound census has recorded 59 indivlduals more than the aerial survey of13 individuals,and the percentage of nesting individuals in his flock is 55.6％,which is obviouslyhigher than 36.9％ of the average ration in China.After this,in fall of 1984 and in spring of 1985 and1986,we repeated the same censuses three times in the same districts,the results indicated that theflock of the crane in Khanka Lakes District is stable basiuclly,but some individuals interchangewith opposite flock of USSR because of gegraphical adjoin So,We blieve this flock in China andthat lock in USSR belong to the same population and suggest two countries should act in concertto studing on this population in future. Meanwhile,the aerial servey