检索结果-南通市图书馆

Analysis and Modeling on the Spatial Structure of urban land use: A Case of Jinan, China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Population,Resources and Environment 2007年第2期5卷 34-40页

作者： Zhao Huixia1, 3, Zhang Zulu2, Jiang Luguang 1 1. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 2. College of Population, Resources and Environment, Shandong Normal University, Jinan Shandong 250014, China 3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China College of Population Resources and Environment Shandong Normal University Jinan Shandong 250014 China

Based on the data of urban land use obtained by remote sensing interpretation from aero images in 1986 and 2004, the spatial structure of Jinan is studied in this paper with the method of Geographic Information System (GIS). According to the proportion of land for residence, industry and commerce, the urban district can be distinguished into three rings. Compared with the traditional theory of the ring structure in Western coun- tries, they have many distinctive characteristics. The main func- tions of the inner ring include residence, business and banking, but the proportion of residential land (more than 50%) is considerably higher than that of the cities in Western countries. The land proportion for residence and industry in the intermediate ring is equal on the whole. The main land of the outside ring is for industrial use. From 1986 to 2004, great changes have taken place on the land proportion of different types of use. In the inner ring, the land for residential and industrial use has shrunk much while the land for commercial use has increased. In the intermediate ring, the changes of the three types of land use were not very much and the temporal variation was relatively stable. On the contrary, the structure in the outside ring varies acutely. Though most of it is also for industrial use, the proportion of residential land has in- creased much. The three rings can also be divided into several sectors respectively, according to the function of land use clusters. New trends and mechanisms of the changes of land use impacting the urban structure were proposed in the end of the paper.

关键词： urban land use ring structure sector structure Jinan

Spatial patterns of urban land use growth in Beijing

在线全文

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2002年第3期12卷 266-274页

作者： LIU Shenghe, Sylvia Prielei, LI Xiubin(1. Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China 2. International Institute for Applied System Analysis, A-2361 Laxenburg, Austria) Inst. of Geographic Sciences and Natural Resources Research. CAS 北京 100101 International Institute for Applied System Analysis A-2361 Laxenburg 奥地利

By using digitized land use maps of Beijing in 1982, 1992 and 1997 and employing GIS spatial analysis techniques, this paper conducts an empirical study on the spatial differentiation and spatial patterns of urban land use growth in Beijing in the period of 1982–1997. It is observed that urban land use growth in Beijing went beyond the control of urban planning, in terms of the extraordinary high growth rate and undesired spatial pattern. The rate of urban expansion after 1982, which was predominated by growth of industrial land, was extraordinary high compared to its historical period. While its growth centers have been actively shifting toward the northern part, rather than toward the southern and eastern parts as designated by the latest General Plan (1991–2010) of Beijing, its spatial pattern of urban land use growth in general was in distinct concentric sprawl, which seriously violated the General Plan of Beijing.

关键词： urban land use spatial differentiation growth pattern GIS Beijing

Application of Neural Network in urban land use Suitability Evaluation

在线全文

学校读者我要写书评

暂无评论

Application of Neural Network in Urban Land Use Suitability ...

urban land use and its impact on local land surface temperature in Beijing,China

2011 International Conference on Advanced Materials and Computer Science(ICAMCS 2011)

作者： Xiaorui Zhang Gang Chen Department of urban Planning Hefei University of Technology School of Architecture and Art Hefei University of Technology

urban land use suitability evaluation is the basic work of urban land use planning and managementThe evaluation method is a core in urban land use suitability evaluationTraditional urban land use suitability evaluation methods are GIS-based methods which often can not get satisfactory results for the complex nonlinear urban land use systemArtificial neural network is a frontier theory of complex non-linearity scientific and artificial intelligence scienceIt is a new method to evaluate urban land use suitabilityThis paper took the land use suitability evaluation of Hefei city as an example,building a back propagation neural network with 8 neurous of input layer,5neurons of hide layer and 3 neurons of output layerThe analysis shows:the high suitability area is68227 km in Hefei city,being about 873%of the total study area;the middle suitability area is596576 km,or about 7633%of the total area and the low suitability area is 116735 km,or about1494%of the total areaThe results reflect the actual situation in Hefei cityThe study shows that the back propagation neural network model can overcome the shortcomings of traditional evaluation methodsIt means that artificial neural network is suitable for urban land use suitability evaluationThis reflects that artificial neural network has great academic value and application prospect in urban land use suitability evaluationIt also reflects that this study can provide a new idea and method for urban land use suitability evaluation

关键词： urban land use suitability evaluation artificial neural network back propagation neural network

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Urban land use and its impact on local land surface temperat...

Evaluating the effect of plain afforestation project and future spatial suitability in Beijing

中国地理学会百年庆典

作者： Yu-gang TAN School of Government,Peking University, Beijing 100871,China

＜正＞land surface temperature（LST）,which is heavily influenced by urban surface structures,becomes a significant parameter in urban local climate.The change of LST in climate caused many problems,for example,the heat island effect,in the newly developed urban areas.Nowadays the rapidly growing metropolitan areas in eastern China are all suffering from serious local climate changes,which make the cities less comfortable to live in.Though governments paid attention to this problem,they didn’t come to understand that this could only be solved in a whole city land use framework.

关键词： urban land use heat islands land surface temperature（LST） Beijing

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China Earth Sciences 2020年第10期63卷 1587-1598页

作者： Tengyun HU Xuecao LI Peng GONG Wencheng YU Xiaochun HUANG Beijing Municipal Institute of City Planning and Design Beijing 100045China Department of Geological and Atmospheric Sciences Iowa State UniversityAmes 50011USA Ministry of Education Key Laboratory of Earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijing 100084China Tsinghua urban Institute Tsinghua UniversityBeijing 100084China

Taking the"One Million-Mu(666 km^2)"Plain Afforestation(PhaseⅠ)Project(Phase I afforestation)in Beijing city as an example,we monitored the growth status of planted forest using long-term remote sensing images,and evaluated the impacts of afforestation on land use change and vegetation growth.We found there is a large space for improvement regarding the ecological benefits of the project.Moreover,we found forest patches with decreasing greenness after the afforestation were mainly converted from farmland with high greenness and low heterogeneity in terms of the normalized difference vegetation index(NDVI).This implies that those farmland patches are inappropriate for afforestation.According to the results from PhaseⅠafforestation and the impact of urbanization on green space,we constructed a series of spatial variables and generated a suitability map for the next"New Round of One Million-Mu(666 km^2)Afforestation project"(PhaseⅡafforestation).We then modeled the spatial distribution of PhaseⅡafforestation based on the derived suitability map.This study is crucial for the scientific evaluation of afforestation projects for space planning(e.g.,urban green space planning).The evaluation and modeling framework built in this study can be used to support the decision making and policy implementation of afforestation projects in China.

关键词： urban land use Afforestation Forest growth Suitability Segmentation Forest modeling

Improving the WRF/urban modeling system in China by developing a national urban dataset

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2022年第4期13卷 75-88页

作者： Huidong Li Fenghui Yuan Lidu Shen Yage Liu Zhonghua Zheng Xu Zhou CAS Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China Lamont-Doherty Earth Observatory of Columbia University PalisadesNY 10964United States National Tibetan Plateau Data Centre Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China

Accurate modeling of urban climate is essential to predict potential environmental risks in cities.urban datasets,such as urban land use and urban canopy parameters(UCPs),are key input data for urban climate models and largely affect their performance.However,access to reliable urban datasets is a challenge,especially in fast urbanizing countries.In this study,we developed a high-resolution national urban dataset in China(NUDC)for the WRF/urban modeling system and evaluated its effect on urban climate modeling.Specifically,an optimization method based on building morphology was proposed to classify urban land use types.The key UCPs,including building height and width,street width,surface imperviousness,and anthropogenic heat flux,were calculated for both single-layer urban Canopy Model(UCM)and multiple-layer Building Energy Parameterization(BEP).The results show that the derived morphological-based urban land use classification could better reflect the urban characteristics,compared to the socioeconomic-function-based classification.The UCPs varied largely in spatial within and across the cities.The integration of the developed urban land use and UCPs datasets significantly improved the representation of urban canopy characteristics,contributing to a more accurate modeling of near-surface air temperature,humidity,and wind in urban areas.The UCM performed better in the modeling of air temperature and humidity,while the BEP performed better in the modeling of wind speed.The newly developed NUDC can advance the study of urban climate and improve the prediction of potential urban environmental risks in China.

关键词： urban climate modeling UCM BEP urban land use urban canopy parameter Chinese cities

Correlation between urban land Change Process and Socioeconomic Development since the 1980s in Jiangsu Province

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Population,Resources and Environment 2007年第2期5卷 72-77页

作者： Han Shucheng1, Pu Lijie1, 2, Peng Buzhuo1 1. Department of land Resources and Tourism Sciences, Nanjing University, Nanjing Jiangsu 210093, China 2. Key Laboratory of land use, Ministry of land and Resources, Beijing 100029, China Department of land Resources and Tourism Sciences Nanjing University Nanjing Jiangsu 210093 China Key Laboratory of land use Ministry of Land and Resources Beijing 100029 China

Studying the process and characteristics of urban land change in different phases of urbanization and different economic development is much important for understanding urban land change and management at a macro level. Taking the example of Jiangsu Province, the present paper studied the correlation between urban land change process and socioeconomic development from 1981 to 2003 on the basis of statistical data. The results showed the following three aspects. First, urban land area has changed periodically and the research duration can be divided into two periods: from 1981 to 1994 and from 1995 to 2003. In each period, the changing trend is the same, i.e. slow at first and then quick. Studying from the comprehensive change status, the characteristic of fluctuant change is significant with three acute change pinnacles in 1988, 1991 and 2002 which were corresponded to turning point years of economic development phases of Jiangsu Province respectively. Second, the synchronization between urban land change and urbanization level change is not strict. With the evolution of urbanization phases, the change pace of urbanization level increased remarkably, but urban land change rate did not increase significantly accordingly. Third, the area of urban land has exponentially increased with the increase of per capita GDP. In different economic development levels classified by per capital GDP, land resource cost for economic development is different, respectively 29.01 hm2, 26.34 hm2, 26.22 hm2, and 11.14 hm2 for the increase of 100 million RMB GDP when the per capita GDP is under 1000, 1000–2000, 2000–5000 and over 5000 RMB.

关键词： Jiangsu Province urban land use urbanization eco- nomic development level

The urban land area Change in China from 1820 to 1999

在线全文

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2002年第4期12卷 427-434页

作者： HE Fanneng, GE Quansheng, ZHENG Jingyun(Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China) Inst. of Geographic Sciences and Natural Resources Research CAS 北京 100101

According to the length of city perimeter and the administration systems recorded in the historical literatures of the Qing Dynasty, a set of methods is developed to convert the historical records into the area of urban land use, by which a set of preliminary estimated urban land use data of the 18 provinces during the Emperor Jiaqing (1820AD) in the Qing Dynasty, is achieved. Based on the above achievements, the regional differences of urban land use are analyzed, and the comparison in urban land use between the Qing Dynasty and present (1999) is made.

关键词： urban land use area estimation Qing Dynasty China

城市土地利用/覆盖变化与热环境生态调控研究进展与展望

在线全文

学校读者我要写书评

暂无评论