基于GIS的中国可持续人居功能分区评价(英文)

在中国1km×1km栅格尺度人居环境自然适宜性分类评价和分县尺度人口空间集聚程度分级评价的基础上,结合中国分县资源环境承载力和区域经济发展水平和发展潜力,确立了中国可持续的人居功能分区评价模型,提出了中国可持续发展的人居功能分区方案。研究表明:中国可持续的人居功能分区空间分布呈现东南半壁优于西北半壁的格局;人居功能强可持续地区面积约139.75×104km2,占国土面积的14.66%,相应人口4.3亿,接近总人口的1/3,主要分布在东南沿海、长江中下游地区、四川盆地、黄淮海平原以及东北平原的部分地区;人居功能较强可持续地区面积约193.61×104km2,占国土面积的1/5,相应人口3.2亿,接近总人口的1/4,主要分布在三江平原、辽河平原、山东半岛等地;可持续地区面积210.19×104km2,约占国土面积的22%,相应人口3.7亿,占总人口的28.24%,主要分布在呼伦贝尔高原、黄土高原和云贵高原等地,零星见于藏东南谷地和柴达木盆地等地区;较弱可持续地区,面积约145.85×104km2,占国土面积的15.30%,人口1.4亿,约占总人口的11%,零散分布于黄土高原、川滇高原和云贵高原的部分地区;弱可持续地区面积约263.86×104km2,约占国土面积的27.68%,相应人口0.4亿,接近总人口的3%,主要分布在青藏高原、西北荒漠以及川滇高原北部地区。     

Elitogenesis in Russia: geographical aspect

The birthplace differentiation for representatives of different groups of the Russian elite is considered for macroregions, subjects of the RF and cities. It is shown that in the elite groups under consideration, the proportions of natives of Moscow and St. Petersburg exceed several times the proportions of natives of these cities in the country's population. The other large cities, especially Yekaterinburg, Kazan, Chelyabinsk, Nizhni Novgorod, Ufa, Saratov, Voronezh, Irkutsk, Omsk, and Rostov-on-Don, are centers of elitogenesis vastly excelled by the two capital cities. The differences between macroregions without regard for Moscow and Saint Petersburg are significant in separate aspects of elitogenesis.     

建筑群体的紧凑性布局——大连市金州区石河中心学校校区建筑规划设计

介绍了大连金州石河中心学校校区建筑规划设计的总体构思和特点,在尊重现有地形地貌的基础上,力求创造出既满足功能需求又充满归属感的、亲切的、生态的、现代新型校区。     

Benthic invertebrate assemblages and functional feeding groups in the Paraná River floodplain (Argentina)

The benthic invertebrate assemblages and functional feeding groups in different mesohabitats of the Middle Paraná River–floodplain system were analyzed. Benthic invertebrates and bottom sediments were sampled in a secondary channel (center and bank mesohabitats), a temporal marginal fluvial wetland adjacent to the river, an isolated lake and a connected lake during low water level. Cluster analysis of average invertebrate densities based on the Bray Curtis dissimilarity index yielded a group composed by the mesohabitats with higher species richness, the floodplain lakes, banks mesohabitats and the wetland. The center mesohabitat of the main channel characterized by sandy sediments with low organic matter content and the lowest invertebrate densities and species richness was classified separately. Alpha diversity increased from the center mesohabitat (6 taxa) to the adjacent wetland (71 taxa), and were similar between the floodplain lakes (24 and 22 taxa) and the river bank mesohabitat (24 taxa). Gamma and beta diversities (Whittaker index) were 92 and 2.19, respectively. The highest turnover of taxa was between the river and the other mesohabitats and the lowest between floodplain lakes. Detrended correspondence analysis (DCA) showed a clear separation of wetland and banks from other mesohabitats (axis 1 and 2 explained 52.25% variance) explained by shredders and collector-filterers. The other mesohabitats were arranged in a gradient from the main channel mostly related to collector-gatherers to the connected lake and the isolated lake that were mostly characterized by predators and scrapers. The invertebrate assemblage complexity and functional feeding groups composition increased in the lateral dimension, from the center of the main channel to the temporal marginal fluvial wetland due to the influences of the spatial heterogeneity caused by different sources of organic matter inputs.     

南麂列岛国家海洋自然保护区微,小型藻类生态研究：Ⅰ.种类组成与生态特点

本文对南麂列岛国家海洋自然保护区微、小型藻类的种类组成、生态类群、分布特点等进行了较详细的分析研究。经鉴定共有微、小型藻类４５９种,在海水和海洋底栖沉积物中发现的有２８３种;泥滩、沙滩、岩礁潮间带中发现的有２８１种;两者共同出现的有１０５种。其中,硅藻类占７１．２４％,蓝藻类占１３．９４％,甲藻类占１２．６４％,绿藻类和金藻类分别占１．５３％和０．６５％。这些种类大都为本区的新记录,为我国海洋微、小型藻类首次记录的有３０种。根据种类组成、分布特点和温度性质,划分为三个生态类群：广布性类群、暖水性类群、温带性类群。此外,根据生境或生活方式不同,划分为两个生态类群：海洋浮游藻类、海洋底栖藻类或附生藻类;根据盐度的不同,又可划分为：淡水藻类、半咸水藻类、海洋藻类;还可以根据藻类个体大小的不同,划分为两个生态类群：海洋微型藻类、海洋小型藻类。     

大气环流模式中非对流云的尺度分析

利用曾庆存的球面泛函空间方法,进行了非对流云的尺度分析,结果是:（1）对于高云,局地变化项、凝结项、平流项和垂直湍流项都是重要的;（2）对于中云除垂直平流比水平平流重要之外,其余结果与高云一样;（3）对于雨层云,凝结与局地变化是重要的;（4）对于海性层云和层积云,局地变化和垂直湍流项是重要的。以上结果对于设计大气环流模式很有参考价值。     

Analysis of grey model between seawater environmental essential factors and phytoplankon dynamics in the Dapeng Bay, the South China Sea

INTRODUCTIONNoctilucascintillansandProrocentrumsigmoidesredtideshavebecomeacommondisasteralongthecoastoftheDapengBay,theSouthChinaSea(QiandHuang,1991;HuangandQi,1992a,b,1993,1995,1996;Huangetal.,1998a).Zooplanktonhasbeenstudiedintheoryandapplicationofgreymodel(Huangetal.,1998b).Someresearchersbelievethatthemagnitudeofthesespectacularoutbreakshasconsiderablyincreasedespeciallyintheeutrophicareas.AlthoughNoctilucaandProrocentrumbloomsaretheso-calledharmless,theiroutbreaksinChinahavebe…