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Rainfall-induced landslide stability analysis in response to transient pore pressure——A case study of natural terrain landslide in Hong Kong

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Science China(Technological sciences) 2003年第Z1期46卷 52-68页

作者： LAN Hengxing, ZHOU Chenghu C. F. LeeWANG Sijing & WU Faquan State Key Laboratory of natural resources and Environmental System, Institute of geographical Sci-ences and natural resources research, Chinese Academy of sciences, Beijing 100101, China Department of Civil Engineering, Hong Kong University, Hong Kong, China 3. Institute of Geology and Geophysics, Chinese Academy of sciences, Beijing 100029, China Chinese Acad Sci State Key Lab Nat Resources & Environm Syst Inst Geog Sci & Nat Resources Res Beijing 100101 Peoples R China Univ Hong Kong Dept Civil Engn Hong Kong Hong Kong Peoples R China Chinese Acad Sci Inst Geol & Geophys Beijing 100029 Peoples R China

Transient pore pressure in response to short intense rainfall process plays an important role in shallow landslide occurrence. Using GIS technology, we carry out the rainfall-induced landslide stability analysis in response to transient pore pressure by means of transient and unsaturated rainfall infiltration modeling. A case study is performed on the shallow landslide stability analysis in Hong Kong. Detailed analysis and discussion reached some useful conclusions on the tempo-spatial behavior and characteristics of slope stability response and pore pressure response to typical rainfall process. Comparison analysis is performed on some important issues including landslide stability response in different types of slopes with different hydraulic properties, antecedent rainfall and landslide stability, and the nature of pore pressure response time. These studies might give us an important insight into landslide tringgering mechanism and the hydrological process in response to rainfall, and provide systematic information and evidences for effective risk assessment and warning system establishment.

关键词： rainfall-induced landslide, transient pore pressure, landslide stability in response to rainfall, GIS.

Saline-alkali land in the Yellow River Delta: amelioration zonation based on GIS

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Journal of geographical sciences 2001年第3期11卷 313-320页

作者： GUAN Yuan-xiu, LIU Gao-huan, WANG Jin-feng (State Key Laboratory of resources and Environment Information System, Institute of Geographic sciences and natural resources research, CAS, Beijing 100101, China) State Key Laboratory of resources and Environment Information System Institute of Geographic Sciences and Natural Resources Research CAS

Soil salinization is one of the major land degradation types and has greatly influenced sustainable agricultural development. Zonation of saline-alkali land is the precondition for effective amelioration. The present situation of saline-alkali land is monitored by remote sensing image processing. Causes for land salinization are analyzed, especially the two key factors, ground water depth and its mineralization degree, are analyzed by using long-term observation data. Previously, zonation of saline-alkali soil was made descriptively and artificially. Based on the present situation of saline-alkali land, ground water depth and ground water mineralization degree, the zonation of saline-alkali land for amelioration in the Yellow River Delta was completed quantitatively. Four different types of saline-alkali land amelioration zones are delineated, namely, easy ameliorated zone, relatively difficult ameliorated zone, difficult ameliorated zone and unfavorable ameliorated zone. Countermeasures for ameliorating saline-alkali soils are put forward according to ecological conditions of different saline-alkali land zones.

关键词： GIS the Yellow River Delta saline-alkali land zonation

Land use change in Bohai Rim: a spatial-temporal analysis

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Journal of geographical sciences 2001年第3期11卷 305-312页

作者： ZHU Hui-yi, LI Xiu-bin, HE Shu-jin, ZHANG Ming (Institute of Geographic sciences and natural resources research, CAS, Beijing 100101, China) Institute of Geographic sciences and natural resources research

Based on RS and GIS methods, land use information for 1985 and 1995 was acquired from TM images and analyzed. Then on both spatial and temporal aspects, this paper analyzes land use change in three provinces of Hebei, Shandong and Liaoning and two municipalities of Beijing and Tianjin in the Bohai Rim covering the period of 1985 to 1995. The extent, rate, areal difference and trend of various types of land use changes in the region, as well as spatial changes of major types of land use, their distribution characteristics and regional orientation are revealed. The regional characteristics of land use are elaborated, so as to provide effective policy support for sustainable land use in the area around the Bohai Bay.

关键词： Bohai Rim land use change spatio-temporal analysis

A Spatiotemporal Analysis of Urban Growth:A Case Study for Jinan Municipality,China

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Chinese Journal of Population,resources and Environment 2006年第4期4卷 48-53页

作者： Yu Bohua1,2,3,Lu Changhe1,Zheng Xinqi 4 1.Institute of geographical sciences and natural resources research,Chinese Academy sciences,Beijing 100101,China 2.College of resources Science&Technolgy,Beijing Normal University,Beijing 100875,China 3.Graduate School of the Chinese Academy of Science(GUCAS),Beijing 100039,China 4.Shandong Normal University,Jinan,Shandong 250014,China Institute of geographical sciences and natural resources research Chinese Academy Sciences College of resources Science & Technolgy Beijing Normal University Graduate School of the Chinese Academy of Science (GUCAS) Shandong Normal University

China is experiencing a process of rapid industrialization and urbanization at the cost of agricultural land and environment, particularly in the costal *** study takes Jinan as a case presenting a time-series analysis of urban land expansion from 313 to *** results show that the urban expansion of Jinan city mainly took place in the last 100 years,especially after the economic reform in *** development and economic growth, urban population growth and migration policies were factors driving the urban land *** sprawl resulted in a disappearance of wetlands and a great loss of agricultural land,and over-pumping of ground water that led to disappearance of the city's feature, namely"the city of springs".

关键词： urban land expansion driving forces environmental effects Jinan

A study on environmental aridity over northern and southern to Qinling Mountains under climate warming

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Journal of geographical sciences 2001年第2期11卷 193-201页

作者： YAN Jun-ping~1, LIU Yan-sui~2 (1. College of Tourism and Environment, Shaanxi Normal University, Xi’an 710062, China 2. Institute of Geographic sciences and natural resources research, CAS, Beijing 100101, China) College of Tourism and Environment Shaanxi Normal University Institute of Geographic sciences and natural resources research CAS

Based on the data up to 1999 from hydroclimatological departments, this pape analyzes the climatic divide implications of the Qinling Mountains in regional response to the process of climate warming, due to which the grades of dryness/wetness (GDW) in 100 years show that the northern region has entered a drought period, while the southern is a humid period. In a course of ten years, the D-value of annual average air temperature over southern Shaanxi (the Hanjiang Valley) and the Central Shaanxi Plain (the Guanzhong Plain) has narrowed, i.e., the former with a slight change and the latter with rapid increase in temperature. Both regions were arid with the decrease in precipition D-value, namely the plain became warmer while the south was drier. The Qinling Mountains play a pronounced role in the climatic divide. The runoff coefficient (RC) of the Weihe River decreases synchronously with that of the Hanjiang due to climate warming. The RC of Weihe dropped from 0.2 in the 1950s to less than 0.1 in the 1990s. The Weihe Valley (the Guanzhong Plain) is practically an arid area due to shortage of water. The successive 0.5, 1.0°C temperature anomaly over China marks, perhaps, the improtant transition period in which the environment becomes more vulnerable than before. The study shows the obvious trend of environmental aridity, which is of help to the understanding of regional response to global climate change.

关键词： climate change aridity Qinling Mountains

Modeling the relationship of land use change and some geophysical indicators for the interlock area of farming and pasturing in China

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Journal of geographical sciences 2002年第4期12卷 397-404页

作者： DENG Xiangzheng, LIU Jiyuan, ZHUANG Dafang, ZHAN Jinyan, ZHAO Tao(Inst. of Geographic sciences and natural resources research, CAS, Beijing 100101, China) Inst. of Geographic sciences and natural resources research CAS 北京 100101

This paper discusses land-use changes in the interlock area of farming and pasturing (IAFP) in northern China. It presents detailed analyses of land-use features in the IAFP, which are controlled by the macro geomorphic units and geophysical conditions-constraints or advantages. Additionally, it selects some indicators, according to the availability in acquiring and processing their quantitative data, to analyze the canonical correlations between the typical conversion of grassland and geophysical conditions. The preliminary study indicates that the physical conditions are of great advantages to the development of grassland. There exists significant correlation between land use change and some geophysical conditions.

关键词： land use driving force interlock area of farming and pasturing China

The challenge of wide application of information and communication technologies to traditional location theory

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Journal of geographical sciences 2013年第2期23卷 315-330页

作者： SONG Zhouying LIU Weidong Key Laboratory of Regional Sustainable Development Modeling of the Chinese Academy of sciences Institute of Geographic sciences and natural resourcesResea—rch CASBeijing100101China

The wide application of information and communication technologies （ICTs） has been argued to be critical to spatial transformation of firms. Recent advances in the studies along this line have challenged traditional location theory. The existing literature, however, focuses mainly on the impacts of ICTs on Iocational conditions and industrial spatial distribution. The dynamics behind such changes have not yet been given sufficient attention by geographers. Given this background, this paper investigates the impact of new ICTs on traditional location theory and the dynamics of industrial re-location that are enabled by new ICTs, based on data collected from an investigation of 178 firms. The paper argues that the application of new ICTs has been a key location factor in the information age, and that the time-cost is becoming critical to the spatial organization of firms, particularly as a result of a shorter product life and mass customization, among other dynamics.

关键词： information and communication technologies location factor time-cost

On Inter-city Interaction of Industrial Development in Changsha-Zhuzhou-Xiangtan City Group

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On Inter-city Interaction of Industrial Development in Chang...

博格达生物圈保护区逆序组织模式与空间扩张性

工程和商业管理国际学术会议

作者： FANG Lan SHEN Lei ZHAO Yang Institute of geographical sciences and natural resources research (IGSNRR) Chinese Academy of sciences P.R.China 100101

The Changsha-Zhuzhou-Xiangtan City Group serves as an intermediate region between Beijing-Guangzhou economic zone, the Pearl River Delta economic zone and the Yangtze River Delta economic zone. The city group enjoys a good geographical location and a relatively advanced transportation. However, there are some differences in the level of resources development and utilization in the Changzhutan city group due to the differences in their geographical environment and economic development status in resource-saving society construction. It is the inevitable choice for the Changzhutan city group to construct the technology-sharing platform for cross-border utilization and management in primary industry, secondary industry and tertiary industry.

关键词： city group regional economic resource economy

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水土保持学报 2002年第3期16卷 126-128页

作者：李建新中国科学院地理科学与资源研究所北京100101

生物圈保护区通常从内向外划分为核心区、缓冲区和过渡区 (或者外向空间扩张过渡区 ) ;核心区与缓冲区必须明确划定边界 ;过渡区不必划定外围边界 ,被赋予外向空间扩张性。博格达生物圈保护区从内向外划分为过渡区、缓冲区和核心区 ,定... 详细信息

生物圈保护区通常从内向外划分为核心区、缓冲区和过渡区 (或者外向空间扩张过渡区 ) ;核心区与缓冲区必须明确划定边界 ;过渡区不必划定外围边界 ,被赋予外向空间扩张性。博格达生物圈保护区从内向外划分为过渡区、缓冲区和核心区 ,定义为逆序组织模式。缓冲区边界为内部过渡区设置了空间边界 ,使常规组织模式外围过渡区的外向空间连续扩张性失去意义 ,内部过渡区的空间发展只能采取向内的内部加密方式和向外的跨越空间方式。研究表明 ,内部过渡区跨越外围缓冲区限制的新途径是建立岛国经济外向发展模式 ;经营过渡区要遵循生态 -生产优化原则。阐述的博格达生物圈保护区空间发展战略 ,对天山北麓其他绿洲发展同样有参考价值。

关键词：博格达生物圈保护区逆序组织模式内部过渡区空间扩张性生物多样性保护