摘要
为科学评判保定市土地可持续利用程度及其时空格局特征,运用改进的生态足迹模型计算了保定市2001~2010年生态足迹、生态承载力,最终算出保定市土地可持续利用系数。根据土地可持续利用划分标准,借助Arc GIS空间分析功能,绘制保定市2001年和2010年土地可持续利用程度空间格局图,并进行时空差异研究。研究结果表明:(1)2001~2010年保定市人均生态足迹、生态承载力都处于逐年增加态势,土地可持续利用系数虽趋于平稳,但处于较低可持续利用状态;(2)涞源县、蠡县和阜平县土地利用为中等可持续区,其可持续利用系数大于0.4,定州市和保定市生态严重超载,为很低可持续区,其可持续利用系数小于0.2,高阳县、顺平县、涞水县、清苑县、雄县、曲阳县和安国市为稍低可持续区,其可持续利用系数处于0.30~0.39之间,其他地区均为较低可持续区,可持续系数处于0.20~0.29之间。
In order to evaluate the degrees of land use sustainability and their temporal and spatial distribution characteristics in Baoding City, this article firstly calculates the ecological footprint and ecological carrying capacity,and then gets the land use sustainability coefficients of Baoding City during 2001 ~ 2010 by using the improved Ecological Footprint model. According to the criteria for the classification of land use sustainability and by use of the spatial analysis function of Arc GIS, this article drafts the figure of spatial pattern of Baoding during 2001 ~ 2010 and analyses the temporal and spatial differences. The results show that the per capita ecological footprint and ecological carrying capacity of Baoding City during 2001 ~ 2010 increase year by year, while the degree of land use sustainability coefficient is low but in a sustainable state. The degrees of land use sustainability coefficients in Laiyuan,Lixian and Fuping County are at middle levels, whose land use sustainability coefficients are higher than 0.4. While Dingzhou and Baoding are severely ecologically overloaded and their land use sustainability coefficients are less than0.2. Gaoyang, Shunping, Laishui, Qingyuan, Xiongxian, Quyang and Anguo are between the above two states, whose land use sustainability coefficients are between 0.3 ~ 0.39. The other areas are lower sustainable and their land use sustainability coefficients are between 0.2 ~ 0.29.
出处
《土壤通报》
CAS
CSCD
北大核心
2015年第2期299-305,共7页
Chinese Journal of Soil Science
基金
国土资源部公益性行业项目(201311060)
河北省高等学校科学技术研究优秀青年基金项目(Y2012015)资助
关键词
可持续利用
时空
生态足迹
保定市
Sustainable use
Spatial and temporal
Ecological footprint
Baoding City
