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| 1 | “一带一路”空间减灾研究与发展显示文摘'一带一路'沿线国家所处的地理环境比较复杂,气候条件多样,频繁的自然灾害对人类的生命财产造成严重损失。从对地观测科技支撑'一带一路'减灾工作切入,梳理了全球空间技术进展,概述了'一带一路'空间减灾研究进展,并以滑坡为例,阐述了新技术支持下的空间减灾科技服务。推动'一带一路'沿线国家的防灾减灾工作不仅有助于加强丝路科技创新合作,还有助于加强国家外交战略互信,保障人民的生命财产安全。 | 于博 陈方 杨阿强 | 2020 | 科技导报2020，38，16： | 2 |
| 2 | Urban sprawl and its impact on sustainable urban development:a combination of remote sensing and social media data显示文摘Urbanization is one of the most impactful human activities across the world today affecting the quality of urban life and its sustainable development.Urbanization in Africa is occurring at an unprecedented rate and it threatens the attainment of Sustainable Development Goals(SDGs).Urban sprawl has resulted in unsustainable urban development patterns from social,environmental,and economic perspectives.This study is among the first examples of research in Africa to combine remote sensing data with social media data to determine urban sprawl from 2011 to 2017 in Morogoro urban municipality,Tanzania.Random Forest(RF)method was applied to accomplish imagery classification and location-based social media(Twitter usage)data were obtained through a Twitter Application Programming Interface(API).Morogoro urban municipality was classified into built-up,vegetation,agriculture,and water land cover classes while the classification results were validated by the generation of 480 random points.Using the Kernel function,the study measured the location of Twitter users within a 1 km buffer from the center of the city.The results indicate that,expansion of the city(built-up land use),which is primarily driven by population expansion,has negative impacts on ecosystem services because pristine grasslands and forests which provide essential ecosystem services such as carbon sequestration and support for biodiversity have been replaced by built-up land cover.In addition,social media usage data suggest that there is the concentration of Twitter usage within the city center while Twitter usage declines away from the city center with significant spatial and numerical increase in Twitter usage in the study area.The outcome of the study suggests that the combination of remote sensing,social sensing,and population data were useful as a proxy/inference for interpreting urban sprawl and status of access to urban services and infrastructure in Morogoro,and Africa city where data for urban planning is often unavailable,inaccurate,or stale. | Zhenfeng Shao Neema S.Sumari Aleksei Portnov Fanan Ujoh Walter Musakwa Paulo J.Mandela | 2021 | Geo-Spatial Information Science2021，24，2： | 2 |
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