The method of building 3D model was discussed at first. Aiming at the feature of mine vacant place,a method to build the 3D vacant place model based on multi TIN (triangular irregular network) was put forward, and the...The method of building 3D model was discussed at first. Aiming at the feature of mine vacant place,a method to build the 3D vacant place model based on multi TIN (triangular irregular network) was put forward, and the data structure and visualization of vacant place were discussed. Then some crucial technologies of realizing function in 3D-GIS were proposed. In addition,the software about special 3D mapping and assaying was introduced.展开更多
According to the on-the-spot sampling investigation, this paper an alyzes the conditions of different districts, different locales and different ty pes of the vacant commercial housing as well as the contributing fact...According to the on-the-spot sampling investigation, this paper an alyzes the conditions of different districts, different locales and different ty pes of the vacant commercial housing as well as the contributing factors, which was completed in recent three years in Guangzhou urban district. It is found tha t vacant ratio of samples in Guangzhou accounted for 20.94%, which is relativel y high. The authors argue that real estate industry of Guangzhou has made rapid progress, at the same time, people should not overlook the vacant commercial hou sing. It will benefit the sustainable development of the real estate industry of Guangzhou to carry out effective measures and actively to make use of present v acant housing.展开更多
The effective use of land in Northeast China is of great significance for ensuring national food security and regional rural revitalization.In this study,based on the survey data collected from Jilin Province,Northeas...The effective use of land in Northeast China is of great significance for ensuring national food security and regional rural revitalization.In this study,based on the survey data collected from Jilin Province,Northeast China,we analyzed the vacancy rates of rural homesteads in suburban,outer suburban,and remote villages,as well as the withdrawal intention of rural-settled farmers,urbansettled farmers,and farmers with urban and rural dual residency from vacant homesteads.From the perspective of farmers’perceptions,this study constructed a theoretical framework of the influence mechanism of their withdrawal intention and analyzed such mechanism by constructing a structural equation model.The results indicated that:1)rural homestead vacancy rates increased with distance from the village to the city.2)rural-settled farmers showed a low withdrawal intention for vacant rural homesteads,followed by urban and rural dual-residence farmers,and urban-settled farmers showed the highest withdrawal intention.3)the relative importance of the factors influencing withdrawal intention is in the following order:policy awareness>interest perception>living environment perception>family characteristics.Finally,this study discussed the reformation of the homestead system and rural homestead transition in Northeast China,which can provide policy support to increase the potential of cultivated land and promote sustainable rural development and urban-rural coordination.展开更多
Pricing options(calls and puts)in general is a complex issue,given the assumptions that one has to make and sometime markets are asymmetric.McKean-Samuelson(1965)is the first model that prices a perpetual American opt...Pricing options(calls and puts)in general is a complex issue,given the assumptions that one has to make and sometime markets are asymmetric.McKean-Samuelson(1965)is the first model that prices a perpetual American option on a vacant land.Years later,Black and Scholes(1973)create a formula to price a call option on corporate liabilities.In the context of real estate discipline,it seems that there is no formula that prices a call on commercial building,specifically office building on a vacant land.The contribution of this study is exactly responding to the latter statement.The results illustrate that the formula of a commercial building on a vacant land is simply two call options—similar to option straddle.展开更多
With the development and construction of the city,the urban development of the Macao Peninsula has entered an era of stock development against the background of the limited scale of urban land.With the shortage of lan...With the development and construction of the city,the urban development of the Macao Peninsula has entered an era of stock development against the background of the limited scale of urban land.With the shortage of land resources,the problem of unused land on the Macao Peninsula is coming to the fore.This paper mainly studies the problem of idle land in the Macao Peninsula,based on the urban development and particular historical background of the region,investigates and elaborates on its complex formation causes through the literature research method,and analyzes the spatial distribution characteristics of idle land in the current situation of the Macao Peninsula by using GIS technology.Based on the above research,suggestions are put forward to prevent and manage the urban vacant land problem in the future urban management and development of Macao.展开更多
文摘The method of building 3D model was discussed at first. Aiming at the feature of mine vacant place,a method to build the 3D vacant place model based on multi TIN (triangular irregular network) was put forward, and the data structure and visualization of vacant place were discussed. Then some crucial technologies of realizing function in 3D-GIS were proposed. In addition,the software about special 3D mapping and assaying was introduced.
文摘According to the on-the-spot sampling investigation, this paper an alyzes the conditions of different districts, different locales and different ty pes of the vacant commercial housing as well as the contributing factors, which was completed in recent three years in Guangzhou urban district. It is found tha t vacant ratio of samples in Guangzhou accounted for 20.94%, which is relativel y high. The authors argue that real estate industry of Guangzhou has made rapid progress, at the same time, people should not overlook the vacant commercial hou sing. It will benefit the sustainable development of the real estate industry of Guangzhou to carry out effective measures and actively to make use of present v acant housing.
基金Under the auspices of Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA28100405,XDA28020403)National Natural Science Foundation of China (No. 41771179, 42071275)+1 种基金Talents Training Project Supported by the Central Government for the Reform and Development of Local UniversitiesYoung Scientist Group Project of Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences (No. 2022QNXZ02)
文摘The effective use of land in Northeast China is of great significance for ensuring national food security and regional rural revitalization.In this study,based on the survey data collected from Jilin Province,Northeast China,we analyzed the vacancy rates of rural homesteads in suburban,outer suburban,and remote villages,as well as the withdrawal intention of rural-settled farmers,urbansettled farmers,and farmers with urban and rural dual residency from vacant homesteads.From the perspective of farmers’perceptions,this study constructed a theoretical framework of the influence mechanism of their withdrawal intention and analyzed such mechanism by constructing a structural equation model.The results indicated that:1)rural homestead vacancy rates increased with distance from the village to the city.2)rural-settled farmers showed a low withdrawal intention for vacant rural homesteads,followed by urban and rural dual-residence farmers,and urban-settled farmers showed the highest withdrawal intention.3)the relative importance of the factors influencing withdrawal intention is in the following order:policy awareness>interest perception>living environment perception>family characteristics.Finally,this study discussed the reformation of the homestead system and rural homestead transition in Northeast China,which can provide policy support to increase the potential of cultivated land and promote sustainable rural development and urban-rural coordination.
文摘Pricing options(calls and puts)in general is a complex issue,given the assumptions that one has to make and sometime markets are asymmetric.McKean-Samuelson(1965)is the first model that prices a perpetual American option on a vacant land.Years later,Black and Scholes(1973)create a formula to price a call option on corporate liabilities.In the context of real estate discipline,it seems that there is no formula that prices a call on commercial building,specifically office building on a vacant land.The contribution of this study is exactly responding to the latter statement.The results illustrate that the formula of a commercial building on a vacant land is simply two call options—similar to option straddle.
文摘With the development and construction of the city,the urban development of the Macao Peninsula has entered an era of stock development against the background of the limited scale of urban land.With the shortage of land resources,the problem of unused land on the Macao Peninsula is coming to the fore.This paper mainly studies the problem of idle land in the Macao Peninsula,based on the urban development and particular historical background of the region,investigates and elaborates on its complex formation causes through the literature research method,and analyzes the spatial distribution characteristics of idle land in the current situation of the Macao Peninsula by using GIS technology.Based on the above research,suggestions are put forward to prevent and manage the urban vacant land problem in the future urban management and development of Macao.
