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Visualization Study Of The Land Use Change

Posted on:2018-08-29Degree:MasterType:Thesis
Country:ChinaCandidate:W W YouFull Text:PDF
GTID:2359330518955725Subject:Land Resource Management
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In the context of global environmental change research,land use change has become a hot topic of global concern.This paper attempts to use the rich resources in the background of the 21st century,used the the advantage of Cite Space ? software:"a map of the Spring and Autumn,a glance;a figure wins million words,at a glance".Respectively,web of science(WoS)database included" Land use change "as the data source,and the land use change based on WoS database was explored by quantitative analysis method combined with visual map interpretation in CNKI database with" literature of land use change "as the data source.The strength of the scientific research,the basis of knowledge,and the comparative analysis of the data from the two databases of WoS and CNKI to study the similarities and differences between the results of the hotspots and the visualization of the frontier trend.To provide scientific reference for the formulation of land use-related policies in China,to contribute to environmental protection and sustainable development in China.After a series of data processed and analyzed,the following conclusions were drawn:1.Foreign cooperation in the field of "land use change":first,the author issued a maximum amount of Verburg PH,the amount of 58 copies,and the author of the network that authors did not have a cooperative relationship to occupy a large part.Followed by the institutions issued the largest number of Chinese Academy of Sciences,744 articles.Chinese Academy of Sciences centrality was 0.32,in the field has a very authoritative position.Finally,the United States issued the largest amount of 2761,while the United States is the most academic authority in the country,the center of the degree of 0.44.2.The subject knowledge of land use change research includes the theoretical knowledge base of natural geography,environmental science,ecology,agriculture,remote sensing,hydrology,landscape science and so on.Scholars in this field should have a comprehensive grasp of the land use change in the field of these aspects of the subject knowledge base.3.The research hotspots in the field of "land use change" were:"land use change","land use","climate change" "Impact" "model" "management" "biodiversity" "dynamics""conservation" "forest" "vegetation" " Deforestation " " landscape" "gis(geographic information system)"and" China(China)".Combined with the distribution of key words that the current research focus is the main "bio-fuels" "ecosystem services" "climate""greenhouse gas emissions" and other Topics.4.The research frontiers in the field of "land use change" abroad included:first,a study on "biofuels".Followed by the exploration of the relationship between climate change science,climate change and land use/change.The Impact Impact Assessment(SIA)is an important research area of LCS.Quantitative construction of the SIA evaluation index system is the core research.The sustainability impact assessment(SIA)is an important research area of LCS.trend.Finally,research on the effects of world forests on global climate,tropical,temperate and forest impacts on the global climate of forests.5.Research hotspots and frontier trends in the field of "land use change" in China:First,the key points in the field of land use change have come to the conclusion that the domestic research hotspots include:the first stage of land between 2002 and 2006 The study of the use of change mainly focused on the study of multiple time and space and regional level,the theory applied to practice,began to use 3S technology to establish a variety of land use/land cover change model.The second stage is from 2007 to 2015,the main research hotspots at this stage include the study of LUCC eco-environmental effects,which is different from the previous stage in the study of carbon emission and the mechanism of driving.Secondly,the research frontiers of land use change in China include frontier research Topics including "carbon emission","ecosystem service value","SWAT model","climate change" and "scenario simulation".6.At home and abroad comparative analysis:China's current land use change and bio-fuels,land use change in the relationship between greenhouse gas emissions and LCS and other areas of the study is lacking.At the same time,the cooperation between China and other countries in the field of land use change needs to be strengthened.It is imperative to raise the level of scientific research in land use change through cooperation.
Keywords/Search Tags:Land use change, Citespace?, Visualization analysis, Hot spots and Frontiers
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