The application of environment-behavior studies plays an important role in studying the renewal of shantytowns.One of the most humane ways of renewal is designing and constructing the necessary urban spatial environme...The application of environment-behavior studies plays an important role in studying the renewal of shantytowns.One of the most humane ways of renewal is designing and constructing the necessary urban spatial environment from the perspective of human daily behavior.Most of the shantytown renovation projects currently carried out in China are mainly focused on demolition and reconstruction,which not only incurs high costs but also damages the original social structure and economic model.During the process of shantytown renewal,it should improve the urban landscape,living environment,and life quality of residents,and ensure the daily life of shantytown residents without increasing their economic burden,and preserve the traces of urban development.In order to achieve this goal,it should explore the renewal strategies of shantytowns from the perspective of environment-behavior studies through behavior maps,on-site research,and literature review.Updating and design from a human perspective often achieve faster and better development;the renewal of shantytowns should be a bottom-up approach and start from a grassroots perspective,completing the renovation design through the composition of the population and behavioral patterns.展开更多
生物质和化石燃料经不完全燃烧产生的固相富碳残留物统称为黑炭.溶解性炭黑(dissolved black carbon,DBC)是黑炭的水溶性组分(其粒径尺度小于0.45μm),被视为全球溶解有机碳库的重要组成部分.尽管针对它的结构与功能、行为与归宿已有研...生物质和化石燃料经不完全燃烧产生的固相富碳残留物统称为黑炭.溶解性炭黑(dissolved black carbon,DBC)是黑炭的水溶性组分(其粒径尺度小于0.45μm),被视为全球溶解有机碳库的重要组成部分.尽管针对它的结构与功能、行为与归宿已有研究,但DBC在环境中的产生、迁移、转化等过程对有机污染物环境行为的影响关注仍显不足.因此,综述了DBC的分布特征,从元素组成、碳质结构、基团性质和技术检测上深度认识DBC的分子结构与性质变化;归纳了DBC与环境新污染物的相互作用,梳理了DBC与新污染物的作用机制和转化效果;概述了DBC的环境过程对有机污染物行为的影响(如结合、去除、转化等).着重就DBC通过氢键、π-π电子供受体、疏水分配、静电作用等与有机污染物发生结合过程、在阳离子条件下DBC通过压缩双电层机制发生团聚并吸附去除污染物过程、以及DBC介导有机污染物光降解过程进行了系统地阐述.未来研究重点应结合跨学科的技术手段认识DBC分子结构的复杂性,深入理解DBC在环境过程中对新污染物行为的影响机制.这为准确评估DBC环境行为与效应,有效构建DBC与新污染物的命运关系起到重要作用.展开更多
文摘The application of environment-behavior studies plays an important role in studying the renewal of shantytowns.One of the most humane ways of renewal is designing and constructing the necessary urban spatial environment from the perspective of human daily behavior.Most of the shantytown renovation projects currently carried out in China are mainly focused on demolition and reconstruction,which not only incurs high costs but also damages the original social structure and economic model.During the process of shantytown renewal,it should improve the urban landscape,living environment,and life quality of residents,and ensure the daily life of shantytown residents without increasing their economic burden,and preserve the traces of urban development.In order to achieve this goal,it should explore the renewal strategies of shantytowns from the perspective of environment-behavior studies through behavior maps,on-site research,and literature review.Updating and design from a human perspective often achieve faster and better development;the renewal of shantytowns should be a bottom-up approach and start from a grassroots perspective,completing the renovation design through the composition of the population and behavioral patterns.
文摘生物质和化石燃料经不完全燃烧产生的固相富碳残留物统称为黑炭.溶解性炭黑(dissolved black carbon,DBC)是黑炭的水溶性组分(其粒径尺度小于0.45μm),被视为全球溶解有机碳库的重要组成部分.尽管针对它的结构与功能、行为与归宿已有研究,但DBC在环境中的产生、迁移、转化等过程对有机污染物环境行为的影响关注仍显不足.因此,综述了DBC的分布特征,从元素组成、碳质结构、基团性质和技术检测上深度认识DBC的分子结构与性质变化;归纳了DBC与环境新污染物的相互作用,梳理了DBC与新污染物的作用机制和转化效果;概述了DBC的环境过程对有机污染物行为的影响(如结合、去除、转化等).着重就DBC通过氢键、π-π电子供受体、疏水分配、静电作用等与有机污染物发生结合过程、在阳离子条件下DBC通过压缩双电层机制发生团聚并吸附去除污染物过程、以及DBC介导有机污染物光降解过程进行了系统地阐述.未来研究重点应结合跨学科的技术手段认识DBC分子结构的复杂性,深入理解DBC在环境过程中对新污染物行为的影响机制.这为准确评估DBC环境行为与效应,有效构建DBC与新污染物的命运关系起到重要作用.
