湖北省“两圈”生物资源生态足迹动态分析

Dynamic Analysis of Ecological Footprint of Biological Resource:a Case Study of the "Two Circles" in Hubei Province

本文对1998-2008年湖北省武汉城市圈和鄂西生态文化旅游圈的生物资源生态足迹及其组成、人均生物资源生态足迹、生物资源生态承载量和生物资源生态赤字(盈余)进行了动态分析。研究表明,武汉城市圈生物资源生态足迹组成以耕地为主,其他生态生产性用地的足迹比例较小,各市州生物资源生态足迹整体呈现逐年增加的趋势,人均生物资源生态足迹小于省均值,生物资源生态承载量先升高后降低,各市州生物资源生态承载量由大到小排序为:黄冈、孝感、武汉、咸宁、天门、黄石、仙桃、鄂州、潜江,生态赤字呈增大趋势;鄂西生态圈除神农架外其他各市州的生物资源生态足迹均较大,林地足迹占主要地位,其总量对全省的贡献较大;人均生物资源生态足迹大于省均值,生物资源生态承载量呈增高趋势,各市州由大到小排序为:宜昌、十堰、襄樊、荆州、恩施、随州、荆门、神农架,该圈一直保持很高的生物资源生态盈余,但盈余值有减小的趋势。

Based on the ecological footprint model system,the ecological footprint of biological resource（EFBR） and its composition,EFBR per capita,ecological capacity of biological resource（ECBR）,and ecological deficit（remainder） from 1998 to 2008 in the ＂two circles＂ areas,namely,wuhan urban circle（WUC） and western Hubei eco-culture tourism circle（WEC） were calculated.According to the dynamic analysis,the results showed that the cropland footprint was the main part of the EFBR in WUC area,and other types of ecologically productive land accounted for a very small part.In a whole,the EFBR of every city in WUC showed an increasing tendency year by year,and EFBR per capita were lower than provincial average.ECBR in WUC increased at first and decreased subsequently,and the ECBR of every city in WUC was ranked as： Huanggang（HG）,Xiaogan（XG）,Wuhan（WH）,Xianning（XN）,Tianmen（TM）,Huangshi（HS）,Xiantao（XT）,Ezhou（EZ）,Qianjiang（QJ）.WUC＇s ecological deficit was increased year by year.The results of WEC were different compared to WUC.The EFBR of Shennongjia（SNJ） was lower than that of any other city in WEC area,and forestland footprint was the main part of the EFBR,contributing a lot to the provincial average level.EFBR per capita in WEC were higher than provincial average,and ECBR in WUC increased subsequently.The ECBR of every city in WEC was ranked as： Yichang（YC）,Shiyan（SY）,Xiangfan（XF）,Jingzhou（JZ）,Enshi（ES）,Suizhou（SZ）,Jingmen（JM）,Shennongjia（SNJ）.WEC kept a high ecological remainder,but the remainder was decreased year by year.