唐山市南湖采煤沉陷区地价空间规律研究
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摘要
城市边缘采煤沉陷区不仅影响矿业城市用地扩张,而且形成独特的地价空间规律。本文基于地价样点信息野外抽样与相关资料收集的基础上,通过GIS空间分析和空间插值的方法,对唐山市南湖区采煤沉陷区内住宅用地、商业用地的地价空间规律进行了研究。由于受采煤沉陷、地质构造等影响,住宅用地、商业用地单位地价走势均沿采煤塌陷梯度方向递减,较之正常地价发生明显偏差;楼面地价表现出与单位地价相反的变化趋势。地质条件的优劣、采煤活动的强度等影响着地基承载力的大小,通过容积率、建筑限高等规划指标对地价产生影响。随着采煤活动的减弱,地价、容积率、建筑限高均呈现出以大、小南湖核心区域(塌陷中心)为中心向外围圈层递增的趋势。研究表明,采煤导致地表塌陷与积水增加了建筑成本,使地价降低;环境修复改善了居住环境质量,提高了地价;地价水平最终取决于地表塌陷损毁程度。
Coal mining subsidence area at urban edge not only affects mining urban land expansion,but also promotes to form unique spatial regularity of land prices.Based on the field samples of land prices and related data collection,through GIS spatial analysis and spatial interpolation method,this paper discusses the spatial regularity of residential and commercial land prices in coal mining subsidence area of South Lake in Tangshan city.The results show that,due to the effects of mining subsidence and geological structure etc.,residential and commercial unit land prices are diminishing along the gradient degree of mining subsidence,obviously deviating from the land price in non-subsided area,and the land price per floor area shows an inverse tendency in contrast to the unit land price.The pros and cons of geological conditions and the intensity of coal mining activities affect the bearing capacity of the ground,and besides have an impact on land prices through plot ratio and building height limit.With the weakening of coal mining activities,land price,plot ratio and building height limit are presenting a circle increasing trend from large and small South Lake core region as center to the periphery.
Coal mining subsidence area at urban edge not only affects mining urban land expansion,but also promotes to form unique spatial regularity of land prices.Based on the field samples of land prices and related data collection,through GIS spatial analysis and spatial interpolation method,this paper discusses the spatial regularity of residential and commercial land prices in coal mining subsidence area of South Lake in Tangshan city.The results show that,due to the effects of mining subsidence and geological structure etc.,residential and commercial unit land prices are diminishing along the gradient degree of mining subsidence,obviously deviating from the land price in non-subsided area,and the land price per floor area shows an inverse tendency in contrast to the unit land price.The pros and cons of geological conditions and the intensity of coal mining activities affect the bearing capacity of the ground,and besides have an impact on land prices through plot ratio and building height limit.With the weakening of coal mining activities,land price,plot ratio and building height limit are presenting a circle increasing trend from large and small South Lake core region as center to the periphery.
引文
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[2]中国政府公开信息整合服务平台-南京市分站.南京对109个废弃矿山宕口进行复垦覆绿[EB/OL].http://govinfo.nlc.gov.cn/jssnjfz/xxgk/njsgtzyj/201212/t20121211_3144969.shtml?classid=373.
[3]张安兵,高井祥,张兆江,等.老采空区地表沉陷混沌特征及时变规律研究[J].中国矿业大学报,2009,38(2):170-174.
[4]韩科明.采煤沉陷区稳定性评价研究[D].北京:煤炭科学研究总院,2008.
[5]刘霁,陈建宏,李云,等.基于Markov模型的铝土矿露天采空区生态重建的环境预测评价[J].中南大学学报:自然科学版,2010,41(5):1931-1937.
[6]姜云,周志宇,鞠维国.煤炭城市采空区土地开发利用潜力评估初探[J].中国矿业,2005,14(06):42-45.
[7]Jianjun Song,Chunjian Han,Ping Li.Quantitative prediction of mining subsidence and its impact on the environment[J].International Journal of Mining Science and Technology,2012,22:69-73.
[8]Guang-li Guo,Wen-kai Feng,Jian-feng Zha.Subsidence control and farmland conservation by solid backfilling mining technology[J].Transactions of Nonferrous Metals Society of China,2011,21(3):665-669.
[9]Shi-dong Wang,Chang-hua Liu,He-bing Zhang.Suitability evaluation for land reclamation in mining area:A case study of Gaoqiao bauxite mine[J].Transactions of Nonferrous Metals Society of China,2011,21(3):506-515.
[10]许延春,耿德庸.采空区待建工程地基稳定性析评价[J].勘察科学技术,1996(3):9-12.
[11]Yang Ren-shu,Yang Guo-liang,Che yu-long.Coal Subsided Area Land Harmonious Governance and Suitability Evaluation Methods[J].Procedia Environmental Sciences,2011(10):1222-1227.
[12]Wei-bing Zhu,Jia-lin Xu,Xiang Kong.Study on Pillar Stability of Wongawilli Mining Area in Shallow Close Distance Coal Seams[J].Procedia Earth and Planetary Science,2009,1(1):235-242.
[13]李幸丽,高均海.基于GIS的采煤沉陷区景观格局动态变化研究[J].矿山测量,2009(4):57-63.
[14]贾俊姝,周心澄,高国雄,等.采煤沉陷区土地利用变化及其景观异质性分析-以山西省东大煤矿为例[J].水土保持通报,2007,27(6):199-202.
[15]郭友红,李树志,高均海.采煤沉陷区复垦景观格局分析[J].矿山测量,2012(1):63-71.
[16]杨渝红,刘秀华.地价理论对城市土地集约利用的应用分析[J].西南农业大学学报:社会科学版,2006,4(2):93-97.
[17]唐山市统计局.唐山市统计年鉴2015[M].北京:中国统计出版社,2015.
[18]唐山南湖生态城[EB/OL].http://www.tssouthlake.gov.cn/gk/index.shtml.
[19]张承春.采煤沉陷区地价格局及评估模型研究[D].北京:中国地质大学(北京),2012.