黄秉维院士开创自然地理研究新方向     

唐登银 《地理科学进展》2013,32(7):1024-1026

黄秉维先生一生致力于综合自然地理研究, 是卓越的自然地理学家。更加难能可贵的是, 在成绩面前他总能看到地理学的弱点和自身工作的不足, 提出革新自然地理学的思想, 从而开启了中国综合自然地理研究的新方向, 对中国地理学界产生了深刻影响, 成为中国20世纪自然地理研究的一代宗师。  相似文献   

First report of the genus Lysippe Malmgren, 1866 (Polychaeta: Ampharetidae) from Chinese waters   总被引：2，自引：0，他引：2  

隋吉星  李新正 《中国海洋湖沼学报》2013,31(4):846-849

The ampharetid genus Lysippe Malmgren, 1866 is reported for the first time from Chinese waters. The identification was based on material deposited in the Marine Biological Museum of the Chinese Academy of Sciences (Qingdao). A new species, Lysippe trichobranchia sp. nov. is described. The new species is widely distributed in shallow waters of the Bohai Gulf, the Yellow Sea and the East China Sea at depths of 10-40 m.  相似文献   

A new record of Cleantioides emarginata Kwon & Kim, 1992 (Crustacea, Isopoda, Valvifera) from Changjiang River estuary, China     

刘文亮 《中国海洋湖沼学报》2013,31(3):625-631

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Review of Anobothrus (Polychaeta: Ampharetidae) from China     

隋吉星  李新正 《中国海洋湖沼学报》2013,31(3):632-635

We reviewed ampharetid genus Anobothrus Levinsen, 1884 in China seas based upon material deposited in the Marine Biological Museum of the Chinese Academy of Sciences (Qingdao). The genus includes A. glandularis (Hartmann-Schröder, 1965), A. gracilis (Malmgren, 1866), A. mironovi Jirkov, 2008 and A. nataliae (Jirkov, 2008). A. glandularis and A. mironovi are recorded for the first time in Chinese waters. A key to Chinese species of Anobothrus is given.  相似文献   

Spatio-temporal dynamic patterns of rural area development in eastern coastal China     

LIU Yansui  WANG Guogang  ZHANG Fugang 《中国地理科学(英文版)》2013,23(2):173-181

The aim of this study is to evaluate the current state of rural area development at the county level in the eastern coastal China. An evaluation index system including 18 factors was developed, and a rural development index (RDI) was constructed to evaluate rural development state in 2000, 2004, and 2008. The quantitative evaluation indicated the following results. 1) This study derived four dominating components by means of principal component analysis, which can explain 78.2% of the total information, namely agricultural production input, the basic condition of agriculture, the comparative effectiveness of grain production, and the household′s own basic conditions. 2) Since the turn of the new millennium, the rural area in the eastern coastal China has experienced a rapid development in general. Well developed, developed, moderately developed and undeveloped rural areas respectively occupied 29.32%, 22.33%, 21.91%, and 10.51% in 2008. 3) The countryside had maintained a sound momentum of developing trend between 2000 and 2008, while the rural development in the eastern coastal China lacked sustainability. And 4) industrialization, urbanization, original economic basis, and location are four major driving forces of the disparity of rural area development in the eastern coastal China. Given these results, the strategies and policies for the improvement of each rural group were put forward.  相似文献   

Three new records of deep-water goniasterids (Echinodermata: Asteroidea: Goniasteridae) from China seas     

肖宁  廖玉麟 《中国海洋湖沼学报》2013,31(5):1036-1044

In this paper,three deep-water species of the family Goniasteridae,Ceramaster misakiensis(Goto,1914),Nymphaster arthrocnemis Fisher,1913 and Pontioceramus grandis Fisher,1911,are recorded for the first time from Chinese waters based on collections deposited in the Marine Biological Museum,Chinese Academy of Sciences.The specimens examined were collected during the period 1956 to 1978 from the East China and South China Seas at depths of 184 to 472 m.Diagnosis,detailed figures,and the geographic distributions are provided.A revised list of Goniasteridae recorded from Chinese waters is proposed.  相似文献   

Galatheid squat lobster species from Chinese waters     

董超  李新正 《中国海洋湖沼学报》2013,31(6):1315-1321

Five galatheid squat lobster species belonging to four genera of two galatheid families are reported for the first time from Chinese waters, namely Lauriea simulata Macpherson and Robainas- Barcia, 2013, Phylladiorhynchus ikedai （Miyake and Baba, 1965）, Phylladiorhynchus integrirostris （Dana, 1852）, Babamunida sp., and Raymunida elegantissima （de Man, 1902）. The genera Lauriea Baba, 1971 and Babamunida Cabezas, Macpherson, and Machordom, 2008 have not previously been recorded from Chinese waters.  相似文献   

国内外城市新区发展理论研究进展   总被引：2，自引：0，他引：2  

朱孟珏  周春山 《热带地理》2013,33(3):363-372

基于梳理城市新区研究的发展脉络,国外城市新区的研究可分为3个阶段：1）19世纪90年代至20世纪50年代以功能疏导和社会需求为研究导向,研究领域包括城市新区的功能形态、卫星城开发实践等;2）20世纪50―90年代以功能平衡和经济需求为研究导向,研究领域包括新城开发、新产业区等;3）20世纪90年代以来以政策引导和生态需求为研究导向,研究领域包括生态新城、郊区化与边缘城市、城市新区规划设计、新区产业与社会问题等。与之相比,我国的城市新区研究也大致分为3个阶段,依次是1978年至20世纪90年代初的国外理论借鉴研究,20世纪90年代至21世纪00年代初期的开发区研究,以及21世纪00年代以来的综合型城市新区研究,相关研究领域包括产业发展、土地利用、空间结构、交通发展、管理体制、生命周期与转型,以及城市新区开发个案等。国内外研究在研究背景和目的、研究内容、研究方法上都具有显著差异。此外,文章还展望了我国城市新区未来的主要研究方向：1）城市新区开发对城市空间增长的作用;2）城市新区的演化及其生命周期;3）基于节约理念的城市新区开发模式;4）城市新区开发研究方法的应用。  相似文献   

Profile convexities in bedrock and alluvial streams     

Jonathan D. Phillips  J. David Lutz 《Geomorphology》2008,102(3-4):554-566

Longitudinal profiles of bedrock streams in central Kentucky, and of coastal plain streams in southeast Texas, were analyzed to determine the extent to which they exhibit smoothly concave profiles and to relate profile convexities to environmental controls. None of the Kentucky streams have smoothly concave profiles. Because all observed knickpoints are associated with vertical joints, if they are migrating it either occurs rapidly between vertical joints, or migrating knickpoints become stalled at structural features. These streams have been adjusting to downcutting of the Kentucky River for at least 1.3 Ma, suggesting that the time required to produce a concave profile is long compared to the typical timescale of environmental change. A graded concave longitudinal profile is not a reasonable prediction or benchmark condition for these streams. The characteristic profile forms of the Kentucky River gorge area are contingent on a particular combination of lithology, structure, hydrologic regime, and geomorphic history, and therefore do not represent any general type of equilibrium state. Few stream profiles in SE Texas conform to the ideal of the smoothly, strongly concave profile. Major convexities are caused by inherited topography, geologic controls, recent and contemporary geomorphic processes, and anthropic effects. Both the legacy of Quaternary environmental change and ongoing changes make it unlikely that consistent boundary conditions will exist for long. Further, the few exceptions within the study area–i.e., strongly and smoothly concave longitudinal profiles–suggest that ample time has occurred for strongly concave profiles to develop and that such profiles do not necessarily represent any mutual adjustments between slope, transport capacity, and sediment supply. The simplest explanation of any tendency toward concavity is related to basic constraints on channel steepness associated with geomechanical stability and minimum slopes necessary to convey flow. This constrained gradient concept (CGC) can explain the general tendency toward concavity in channels of sufficient size, with minimal lithological constraints and with sufficient time for adjustment. Unlike grade- or equilibrium-based theories, the CGC results in interpretations of convex or low-concavity profiles or reaches in terms of local environmental constraints and geomorphic histories rather than as “disequilibrium” features.  相似文献   

转型时期广州城市户籍人口新贫困的地域类型和分异机制   总被引：6，自引：2，他引：4  

袁媛  许学强  薛德升 《地理研究》2008,27(3):672-682

本文把新城市贫困度量指标从经济领域拓展到社会文化等领域,利用广州市2005年最低保障统计和五普数据,采用因子分析法计算街道层面贫困主因子和综合贫困得分,并对得分大于全市平均水平的街道进行聚类,划分出"外围工人相对集中的贫困区、邻近核心就业不理想的贫困区和内城核心住房设施匮乏的贫困区"三种类型。结合三类代表社区的问卷访谈、综合调研和社区发展分析,发现计划和转型两个时期,体制和市场的双重因素共同作用,深刻改变或影响了社区的物质和社会特征,最终导致贫困地域产生明显的特征分异。  相似文献