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Impacts of information about COVID-19 on pig farmers'production willingness and behavior:Evidence from China
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作者 Huan Chen Lei Mao Yuehua Zhang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第4期1429-1441,共13页
This paper examines the impacts of information about COVID-19 on pig farmers'production willingness by using endorsement experiments and follow-up surveys conducted in 2020 and 2021 in China.Our results show that,... This paper examines the impacts of information about COVID-19 on pig farmers'production willingness by using endorsement experiments and follow-up surveys conducted in 2020 and 2021 in China.Our results show that,first,farmers were less willing to scale up production when they received information about COVID-19.The information in 2020 that the second wave of COVID-19 might occur without a vaccine reduced farmers'willingness to scale up by 13.4%,while the information in 2021 that COVID-19 might continue to spread despite the introduction of vaccine reduced farmers'willingness by 4.4%.Second,farmers whose production was affected by COVID-19 were considerably less willing to scale up,given the access to COVID-19 information.Third,farmers'production willingness can predict their actual production behavior. 展开更多
关键词 COVID-19 randomized experiment information treatment production willingness
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Characterization of Small-Scale Farmers and Assessment of Their Access to Crop Production Information in Selected Counties of Kenya
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作者 Anastasia Mumbi Wahome John B. K. Kiema +1 位作者 Galcano C. Mulaku Isaac Mukoko 《Agricultural Sciences》 2024年第5期565-589,共25页
Small-scale farming accounts for 78% of total agricultural production in Kenya and contributes to 23.5% of the country’s GDP. Their crop production activities are mostly rainfed subsistence with any surplus being sol... Small-scale farming accounts for 78% of total agricultural production in Kenya and contributes to 23.5% of the country’s GDP. Their crop production activities are mostly rainfed subsistence with any surplus being sold to bring in some income. Timely decisions on farm practices such as farm preparation and planting are critical determinants of the seasonal outcomes. In Kenya, most small-scale farmers have no reliable source of information that would help them make timely and accurate decisions. County governments have extension officers who are mandated with giving farmers advisory services to farmers but they are not able to reach most farmers due to facilitation constraints. The mode and format of sharing information is also critical since it’s important to ensure that it’s timely, well-understood and usable. This study sought to assess access to geospatial derived and other crop production information by farmers in four selected counties of Kenya. Specific objectives were to determine the profile of small-scale farmers in terms of age, education and farm size;to determine the type of information that is made available to them by County and Sub-County extension officers including the format and mode of provision;and to determine if the information provided was useful in terms of accuracy, timeliness and adequacy. The results indicated that over 80% of the farmers were over 35 years of age and over 56% were male. Majority had attained primary education (34%) or secondary education (29%) and most farmers in all the counties grew maize (71%). Notably, fellow farmers were a source of information (71%) with the frequency of sharing information being mostly seasonal (37%) and when information was available (43%). Over 66% of interviewed farmers indicating that they faced challenges while using provided information. The results from the study are insightful and helpful in determining effective ways of providing farmers with useful information to ensure maximum benefits. 展开更多
关键词 Small Scale Farmers FARMERS Crop production information Services Geospatial information information Access
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The Customer Requirements Analysis Method of Engineering Products Based on Multiple Preference Information
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作者 Guo Mao 《Proceedings of Business and Economic Studies》 2024年第1期204-209,共6页
To effectively evaluate the fuzziness of the market environment in product planning,a customer requirements analysis method based on multiple preference information is proposed.Firstly,decision-makers use a preferred ... To effectively evaluate the fuzziness of the market environment in product planning,a customer requirements analysis method based on multiple preference information is proposed.Firstly,decision-makers use a preferred information form to evaluate the importance of each customer requirement.Secondly,a transfer function is employed to unify various forms of preference information into a fuzzy complementary judgment matrix.The ranking vector is then calculated using row and normalization methods,and the initial importance of customer requirements is obtained by aggregating the weights of decision members.Finally,the correction coefficients of initial importance and each demand are synthesized,and the importance of customer requirements is determined through normalization.The development example of the PE jaw crusher demonstrates the effectiveness and feasibility of the proposed method. 展开更多
关键词 product planning Customer requirements Importance ratings Multi-format information
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Prototype Geographic Information Systems Mapping of Crop Products Featured Local
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作者 Teddy Oswari Euphrasia Susy Suhendra +1 位作者 Emy Haryatmi Fenni Agustina 《Journal of Geographic Information System》 2013年第3期193-197,共5页
Local featured program in Indonesia cannot be separated entirely from commodity strategic bases. Until in 2006, agricultural development formulation showed indicative targets for featured crops commodity production. T... Local featured program in Indonesia cannot be separated entirely from commodity strategic bases. Until in 2006, agricultural development formulation showed indicative targets for featured crops commodity production. The problem of food security is forming of farmer’s independence to protect local resources in efficiently and optimally, so these resources can be more utilized. It can be achieved by assist of information technologies and communication in forming of Geographic Information System (GIS) to support consistency of food security in Indonesia. This research designs prototype geographic information system in order to conduct the accurate mapping and to know the local featured crops production in Indonesia. This level is conducted for documentation and mapping of agricultural products which is the local featured production. This documentation requires the usage of potential physical, economic, social and cultural environment by the utilization of information technology and communication, which have the ability of relevancy and accessibility of reliable information. 展开更多
关键词 geographic information System MAPPING LOCAL SEED Plants
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Research on Mobile-Based Logistics Information System for Hainan Agricultural Products 被引量:1
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作者 方纪华 王玲玲 +1 位作者 李玉萍 罗红霞 《Agricultural Science & Technology》 CAS 2014年第7期1235-1239,共5页
The current situation,information technology and problems of logistics for agricultural products were summarized.Some key technologies involved in mobilebased logistics information system for Hainan agricultural produ... The current situation,information technology and problems of logistics for agricultural products were summarized.Some key technologies involved in mobilebased logistics information system for Hainan agricultural products were analyzed,such as information classification and retrieval,user information authentication via QR code,and logistics information services based on WEB and mobile devices.Emphasis was given to study the design idea,content,method for the system. 展开更多
关键词 Agricultural product Logistics distribution Terminal services information security
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The Operation Mechanism of Agricultural Products Supply Chain and Profit Allocation Model in the Context of Asymmetric Information 被引量:1
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作者 齐天真 孙蕊 郭超坤 《Agricultural Science & Technology》 CAS 2016年第1期197-200,233,共5页
The research performed analysis on causes of asymmetric information of agricultural product supply chain and made conclusion on operation mechanism and characteristics of supply chain based on asymmetric information. ... The research performed analysis on causes of asymmetric information of agricultural product supply chain and made conclusion on operation mechanism and characteristics of supply chain based on asymmetric information. Finally, the research detailed profit sharing of agricultural product supply chain in the context of asymmetric information and proposed suggestions, providing references of pricing and profit sharing of supply chains of agricultural products. 展开更多
关键词 information asymmetry The supply chain of agricultural products The operation mechanism Profit allocation model
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Application of Remote Sensing and Geographic Information System in Land Use and Land Cover Change
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作者 王静 经卓玮 +2 位作者 马友华 王强 於忠祥 《Agricultural Science & Technology》 CAS 2014年第1期144-147,共4页
The integration and application of remote sensing (RS) and geographic in-formation system (GIS) in the study of the Land Use and Land Cover Change (LUCC) were summarized, as wel as researches on the monitoring d... The integration and application of remote sensing (RS) and geographic in-formation system (GIS) in the study of the Land Use and Land Cover Change (LUCC) were summarized, as wel as researches on the monitoring dynamic changes in LUCC, driving force and application examples of the integration and the application of RS and GIS in simulation research. The methods and technical ap-proaches of RS and GIS in LUCC research were discussed. Views on the existing problems of the integration and the application of RS and GIS were put forward, and the future developing direction of LUCC technology was forecasted. 展开更多
关键词 Land cover/land use Remote sensing (RS) geographic information sys-tem (GIS) Integration of RS and GIS
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Classification Method for Dongting Lake Wetland Based on Geographic Information
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作者 朱晓荣 张怀清 《Agricultural Science & Technology》 CAS 2012年第10期2175-2179,2196,共6页
[Objective] This study aimed to improve the accuracy of remote sensing classification for Dongting Lake Wetland.[Method] Based on the TM data and ground GIS information of Donting Lake,the decision tree classification... [Objective] This study aimed to improve the accuracy of remote sensing classification for Dongting Lake Wetland.[Method] Based on the TM data and ground GIS information of Donting Lake,the decision tree classification method was established through the expert classification knowledge base.The images of Dongting Lake wetland were classified into water area,mudflat,protection forest beach,Carem spp beach,Phragmites beach,Carex beach and other water body according to decision tree layers.[Result] The accuracy of decision tree classification reached 80.29%,which was much higher than the traditional method,and the total Kappa coefficient was 0.883 9,indicating that the data accuracy of this method could fulfill the requirements of actual practice.In addition,the image classification results based on knowledge could solve some classification mistakes.[Conclusion] Compared with the traditional method,the decision tree classification based on rules could classify the images by using various conditions,which reduced the data processing time and improved the classification accuracy. 展开更多
关键词 geographic information Decision tree classification
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Basic theory and key technologies for marine geographic information system 被引量:8
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作者 SU Fenzhen YANG Xiaomei +2 位作者 XU Jun ZHANG Tianyu LUO Jiancheng 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2006年第2期80-86,共7页
Marine geographic information system (MGIS) has great ability to deal with the spatio-temporal problems and has potential superiority when it is applied to oceanography. Using the feature extraction of oceanic pheno... Marine geographic information system (MGIS) has great ability to deal with the spatio-temporal problems and has potential superiority when it is applied to oceanography. Using the feature extraction of oceanic phenomena as a case study, the functions of the MGIS are analyzed, and thus the position of MGIS in the oceanography is defined. Comparing the requirement of MGIS with that of the traditional GIS which has been developed in the terrestrial applications in the past four decades, the frame for the functions of MGIS is constructed. According to the established MGIS, some key technologies are discussed in detail with emphasis on the specialities which can distinguish the MGIS from the traditional GIS. 展开更多
关键词 marine geographic information system remote sensing function structure data mining
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Geographical Information System-Based Assessment of Ecological Security in Changbai Mountain Region 被引量:7
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作者 LU Xing-chang ZHANG Ji-quan LI Xiao-zhen 《Journal of Mountain Science》 SCIE CSCD 2014年第1期86-97,共12页
Ecological security defined as the creation of a condition where the physical surroundings of a community provide for the needs of its inhabitants without diminishing its natural stock,which is important for regional ... Ecological security defined as the creation of a condition where the physical surroundings of a community provide for the needs of its inhabitants without diminishing its natural stock,which is important for regional security and social stability.In recent years,land use patterns in the Changbai Mountain region have changed significantly with intensive human activities,and consequently led to increasing problems in regional ecological security.Based on the Pressure-State-Impact-Response(PSIR) model and the mathematical method of catastrophe progression supported by geographical information system(GIS),the ecological security situation of the study area under land use and cover change(LUCC) was evaluated.The results indicated that the ecological security in Changbai Mountain region varied nonlinearly,which got better from 1990 to 2000 but became worse from 2000 to 2007,the ecological security levels in Changbai Mountain region were mainly medium and medium to low during the past 17 years,with higher values of Ecological Security Index(ESI) in the central region and lower values in the east and west,the ecological security situation was more serious in the settlements and river valleys,where the LUCC was most remarkable. 展开更多
关键词 ECOLOGICAL security Pressure-State-Impact-Response Land use and COVER change geographicAL information System(GIS) CATASTROPHE PROGRESSION Changbai MOUNTAIN
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Hazards Assessment of Regional Debris Flows Based on Geographic Information Science 被引量:7
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作者 JIANG Xiaobo CUI Peng 《Wuhan University Journal of Natural Sciences》 CAS 2007年第4期651-656,共6页
Supported by the spatial analysis feature of geographic information science and assessment model of regional debris flows, hazards degrees of the debris flows in the Upper Yangtze River Watershed (UYRW) are divided ... Supported by the spatial analysis feature of geographic information science and assessment model of regional debris flows, hazards degrees of the debris flows in the Upper Yangtze River Watershed (UYRW) are divided into five grades based on grid cell. The area of no danger, light danger, medium danger, severe danger and extreme severe danger regions respectively are 278 000, 288 000, 217 000, 127 000, 15 000 km^2. Furthermore, the counties in the UYRW are classified into four classes based on the hazards degrees in each county. The number of severe danger, medium danger, light danger and no danger counties respectively are 49, 82, 77 and 105. The assessment results will be provided for the hazards forecasting and mitigation in the UYRW and ongoing regionalization of Main Function Regions in China as data and technique framework. 展开更多
关键词 debris flow hazards assessment geographic information science the Upper Yangtze River Watershed
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Spatial variations of aluminum species in drinking water supplies in Xi'an studied applying geographic information system 被引量:3
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作者 Wendong Wang,Hua Li,Xiaochang Wang,Yongjun Liu School of Environmental and Municipal Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China. 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第4期519-525,共7页
This article aimed to investigate the variation of aluminum species and the effects of coagulant type and water quality on aluminum speciation in drinking water. Statistical analysis showed that the concentration of t... This article aimed to investigate the variation of aluminum species and the effects of coagulant type and water quality on aluminum speciation in drinking water. Statistical analysis showed that the concentration of total aluminum (AlT) of drinking water in Xi' an ranged from 0.051 to 0.417 mg/L and the concentration of A1T in about 24.7% studied samples was higher than the currently recommended value (0.2 mg/L). The areas fed by surface water plants had a larger portion (39.4%) of samples over the recommended value. In drinking water treated by alum coagulant, the average concentration of monomeric aluminum (Ala) was higher than that in water treated by poly aluminum chlorine (PACl) and poly aluminum ferric chloride (PAFC). The average concentrations of polynuclear aluminum (Alb) and colloidal/suspended aluminum (Ale) in the drinking water treated by alum were lower than those in water treated by PACl and PAFC. There was a notable decrease in AlT along with the delivery pipeline away from the plants, with an average decline of about 36 μg/(L-km). Besides coagulant type, water quality also could affect aluminum speciation. In drinking water without orthophosphate, the concentrations of Ala and AlT were positively correlated with pH; while, in drinking water with orthophospbate, the concentrations of Ala and AlT were negatively correlated with pH. The addition of orthophosphate salts in the drinking water treatment process would be an effective method for aluminum control in pH range 6.5-8.2. 展开更多
关键词 aluminum species geographic information system ORTHOPHOSPHATE water quality
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Research on Development of Agricultural Geographic Information Ontology 被引量:3
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作者 HUANG Yong-qi CUI Wei-hong +1 位作者 ZHANG Yang-jian DENG Gao-yan 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第5期865-877,共13页
This paper first analyzes the reason that agricultural geographic information gives rise to semantic heterogeneity and solution thereof. Although OWL (web ontology language) is the standard of ontology representatio... This paper first analyzes the reason that agricultural geographic information gives rise to semantic heterogeneity and solution thereof. Although OWL (web ontology language) is the standard of ontology representation language in semantic web, it is insufficient in representing spatial characteristics, especially spatial relationship. Consequently it is pointed out to build geo-ontology by virtue of three theories such as mereology, location theory and topology in this paper. This paper introduces mereology, location theory and topology, and then discusses how to adopt these three theories to build geo-ontology. The outcome of experiment shows that solution put forward by this paper is feasible. 展开更多
关键词 agricultural geographic information semantic heterogeneity MEREOLOGY LOCATION TOPOLOGY GEO-ONTOLOGY
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Chaining Distributed Geographic Information Web Services Based on Ontology 被引量:2
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作者 WU Shanming SHEN Jianjing 《Wuhan University Journal of Natural Sciences》 CAS 2008年第4期401-406,共6页
To solve the problem of chaining distributed geographic information Web services (GI Web services), this paper provides an ontology-based method. With this method, semantic service description can be achieved by sem... To solve the problem of chaining distributed geographic information Web services (GI Web services), this paper provides an ontology-based method. With this method, semantic service description can be achieved by semantic annotation of the elements in a Web service description language(WSDL) document with concepts of geographic ontology, and then a common under-standing about service semantics between customers and providers of Web services is built. Based on the decomposition and formalization of customer requirements, the discovery, composition and execution of GI Web services are explained in detail, and then a chaining of GI Web services is built and used to achieve the customer's requirement. Finally, an example based on Web ontology language for service (OWL-S) is provided for testing the feasibility of this method. 展开更多
关键词 Web service geographic information Web services ONTOLOGY description logic Web ontology langugae (OWL)
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Remote sensing and geographic information systems techniques in studies on treeline ecotone dynamics 被引量:1
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作者 Parveen K.Chhetri Eric Thai 《Journal of Forestry Research》 SCIE CAS CSCD 2019年第5期1543-1553,共11页
We performed a meta-analysis on over 100 studies applying remote sensing(RS)and geographic information systems(GIS)to understand treeline dynamics.A literature search was performed in multiple online databases,includi... We performed a meta-analysis on over 100 studies applying remote sensing(RS)and geographic information systems(GIS)to understand treeline dynamics.A literature search was performed in multiple online databases,including Web of Knowledge(Thomson Reuters),Scopus(Elsevier),BASE(Bielefeld Academic Search Engine),CAB Direct,and Google Scholar using treeline-related queries.We found that RS and GIS use has steadily increased in treeline studies since 2000.Spatialresolution RS and satellite imaging techniques varied from low-resolution MODIS,moderate-resolution Landsat,to high-resolution WorldView and aerial orthophotos.Most papers published in the 1990s used low to moderate resolution sensors such as Landsat Multispectral Scanner and Thematic Mapper,or SPOT PAN(Panchromatic)and MX(Multispectral)RS images.Subsequently,we observed a rise in high-resolution satellite sensors such as ALOS,GeoEye,IKONOS,and WorldView for mapping current and potential treelines.Furthermore,we noticed a shift in emphasis of treeline studies over time:earlier reports focused on mapping treeline positions,whereas RS and GIS are now used to determine the factors that control treeline variation. 展开更多
关键词 Digital ELEVATION model geographic information systems REMOTE sensing TREELINE
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The Development of a Geographic Information System(GIS) Database for Jiuzhaigou National Nature Reserve and Its Application 被引量:3
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作者 DI Bao-feng ZHANG Kai-shan +2 位作者 TANG Ya ZHANG Ming-hua Susan L.USTIN 《Journal of Mountain Science》 SCIE CSCD 2013年第3期398-409,共12页
The objective of this paper is to develop a GIS(Geographic Information System) database for Jiuzhaigou National Nature Reserve(Jiuzhaigou,hereafter) in China and demonstrate its application as a research tool.A cost-e... The objective of this paper is to develop a GIS(Geographic Information System) database for Jiuzhaigou National Nature Reserve(Jiuzhaigou,hereafter) in China and demonstrate its application as a research tool.A cost-effective procedure was developed to compile a variety of geographical and biological data of the study area in terms of popular GIS format such as shape files.These files were further calibrated and validated using field surveys data.The developed GIS database was used to quantify the distributions of the wildlife(amphibians,mammals,and birds) using the distances of the wildlife to the centerline of the bus-tour routes.The Pearson correlation coefficient was used to quantify the correlation in space between pairs of different wildlife using the number of habitats for given space contexts.An ArcObject-based macro was developed to perform the analysis.The results showed the majority of the habitats of wildlife are located in the proximity of the tour-bus routes with an average distance ranging from 564 to 894 m depending on types of wildlife.This indicates a possibility of the disturbance to the wildlife by human activities.The correlation coefficient of the wildlife ranged from 0.36 to 0.64 depending on pairs of wildlife,indicating some correlations in space.However,due to the limited sample size,the statistical significances need to be further investigated.This paper has successfully demonstrated the use of the GIS-based database as a research tool for environmental study. 展开更多
关键词 geographic information System (GIS) DATABASE Remote sensing WILDLIFE CorrelationCoefficient Jiuzhaigou
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THE MANAGEMENT AND RESEARCH OF GEOGRAPHICAL NAMES USING GEOGRAPHICAL INFORMATION SYSTEM 被引量:4
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作者 Yu Guangming Chen Ping Wu Xuejin(Department of Geography) 《湖北科技学院学报》 1992年第3期221-230,共10页
Based on the combination of Geographical information system(GIS)with the research ofToponymy,some foundational problems of the Geographical Name Information System(GINS)are discussed in this paper.The present situatio... Based on the combination of Geographical information system(GIS)with the research ofToponymy,some foundational problems of the Geographical Name Information System(GINS)are discussed in this paper.The present situation of Toponymical research is anal-ysed and the necessity of introducing the GIS tools to the research of Toponymy is demon-strated.The conceptual model of the GNIS and the structure of Geographical name Database(GND)are discussed.The basic functions of the GNIS software for management and re-search of geographical name are suggested.Some issues are stated such as the applicationand potential of the combination of GIS with CAD in the management and research of To-ponymy,the combination of GNIS with other spatial information system and sharing the in-formation with each other,the research and development of GNIS, etc. 展开更多
关键词 geographicAL NAMES TOPONYMY GN MANAGEMENT and RESEARCH geographicAL information system
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The application of Yangtze Estuary Tidal Wetlands Geographic Information System 被引量:1
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作者 WANGJun CHENZhenlou +2 位作者 XUShiyuan WANGDongqi LIUJie 《Journal of Geographical Sciences》 SCIE CSCD 2005年第2期155-166,共12页
Yangtze Estuary Tidal Wetlands Geographic Information System (YETWGIS) is a comprehensive software system for environmental management and decision of Yangtze estuary tidal wetlands. Based on MapObjects components tec... Yangtze Estuary Tidal Wetlands Geographic Information System (YETWGIS) is a comprehensive software system for environmental management and decision of Yangtze estuary tidal wetlands. Based on MapObjects components technology, Data Mining technology, mathematical modeling method and Visual Basic language, this software system has many functions such as displaying, editing, querying and searching, spatial statistics and analysis, thematic map compiling, and environmental quality evaluation. This paper firstly outlined the system structure, key techniques, and achieving methods of YETWGIS, and then, described the core modules (the thematic map compiling module and environmental quality evaluation model module) in detail. In addition, based on information entropy model, it thoroughly discussed the methods of environmental quality evaluation and indicators' weight calculation. Finally, by using YETWGIS, this paper analyzed the spatial distribution characteristics of Heavy Metal and Persistent Organic Pollutants (POPs) of the Yangtze estuary tidal wetlands in 2002, and evaluated the environmental quality of the Yangtze estuary tidal wetlands in 2003. 展开更多
关键词 Yangtze estuary tidal wetland geographic information system components technology information entropy model
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Application and research of global grid database design based on geographic information 被引量:6
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作者 Xuming Liang 《Global Energy Interconnection》 2018年第1期87-95,共9页
Energy crisis and climate change have become two seriously concerned issues universally. As a feasible solution, Global Energy Interconnection(GEI) has been highly praised and positively responded by the international... Energy crisis and climate change have become two seriously concerned issues universally. As a feasible solution, Global Energy Interconnection(GEI) has been highly praised and positively responded by the international community once proposed by China. From strategic conception to implementation, GEI development has entered a new phase of joint action now. Gathering and building a global grid database is a prerequisite for conducting research on GEI. Based on the requirement of global grid data management and application, combining with big data and geographic information technology, this paper studies the global grid data acquisition and analysis process, sorts out and designs the global grid database structure supporting GEI research, and builds a global grid database system. 展开更多
关键词 Big data collection geographic information Grid database Data mining
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The application of geographic information technology to coastal geomorphology 被引量:1
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作者 GUO Wei LI Shuheng ZHU Dakui 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2009年第5期49-57,共9页
With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources an... With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources and different formats has become a major research field in coastal geomorphology by using Geographic Information System (GIS). This paper puts forward a new methodology framework of GIS techniques in coastal ocean geomorphology, including data acquisition, process, analysis, and representation. It focuses on some major GIS techniques to study the land-ocean interaction mechanism, such as spatial analysis, submarine topography model and three-dimension (3D) visualization, and apply its result to coastal urban planning, harbor site selection and geomorphology environment about coral reef and islands on the continental shelf. The case studies cover the whole coastal ocean to serve the social community, economical development and diplomatic rights for decision-making all round in the coastal zone. The research shows clearly that the application of coastal multi-source geospatial platform has changed the traditional coastal geomorphology science dramatically from its research scope, fields and methods, however, as made clear in this paper, extracting accurate information from remote sensing data and GIS databases for coastal geomorphological applications is a nontrivial challenge that requires the combined knowledge and skills of information scientists and geomorphologists. 展开更多
关键词 coastal geomorphology geographic information system (GIS) spatial analysis threedimensional visualization
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