标题：Evaluating extended land consumption in building life cycle to improve land conservation: A case study in Shenyang, China作者：Xu Tang , Chunyan Li, Shiyuan Hu , Yaolin Liu, Hong Geng
来源出版物：Resources, Conservation and Recycling 卷：109 页：78–89 DOI：10.1016/j.resconrec.2016.02.004 出版年：2016
摘要：This paper aims to evaluate land consumption caused by materials flow in building life cycle for feasible land conservation measures in China. As distinct from the land occupied by buildings, extended land consumption was defined as lands consumed during raw material extraction and construction waste disposal. And corresponding statistical model, including two computing formulas for single building and a statistical method for regional buildings was designed. Using the proportions of weights from raw materials to building materials and the ratios between raw material weights and destroyed land areas, extended land consumptions at construction stage and demolition stage by per square meter of floor area were calculated as target parameters respectively for three common building structures: brick-concrete, frame and steel structure. Based on building structures, predicted time of demolition and reconstruction, and the target parameters, extended land consumption from all buildings of Shenyang City from 2014 to 2064 in four situations were calculated and compared. The results illustrate that extended land consumption accounts for 1.78% of the whole city area and 29.18% of occupied land, and could be reduced by 80% by improving construction quality for longer serviceable building life and adopting prefabricated construction for greater recycling ratios of scrap building materials. Material flow caused land consumption provides an extended dimension to the concepts on land consumption; the statistical model provides a framework to quantify the relationships between building patterns and land consumption. Our approach permits more accurate land consumption prediction for decision-making in sustainable land utilization.
文献类型：Article
语种：English
作者关键词：Extended land consumption; Material flow; Life cycle; Statistical model; Building patterns; Land conservation
通讯作者地址：Shiyuan Hu; School of Resources and Environmental Sciences, Wuhan University, Wuhan 430079, China
电子邮件地址：Hushiyuan@whu.edu.cn
地址：
[Xu Tang,Chunyan Li,Shiyuan Hu,Yaolin Liu,Hong Geng]School of Resources and Environmental Sciences, Wuhan University, Wuhan 430079, China
[Xu Tang,Shiyuan Hu,Yaolin Liu]Key Laboratory of Geographic Information System (Wuhan University), Ministry of Education, Wuhan 430079, China
[Xu Tang,Shiyuan Hu,Yaolin Liu]Key Laboratory of Digital Mapping and Land Information Application Engineering (Wuhan University), National Administration of Surveying, Mapping and Geoinformation, Wuhan 430079, China
ISSN：0921-3449
影响因子（2014）：2.564
全文链接：http://www.sciencedirect.com/science/article/pii/S0921344916300246
