京津冀生态系统质量空间特征及生态红线建议

On Spatial Characteristics of Ecosystem Quality and Ecological Red Line in Beijing-Tianjin-Hebei Region

在对京津冀地区生态质量现状进行评价的基础上,利用GIS(地理信息系统)的空间分析功能,根据研究区的资源环境现状和自然资本承载力与区域经济社会发展的关系特征,在计算各区域生态质量分级的基础上,分别对其生态质量的时空特征,初级净生产力,森林植被覆盖变化等方面进行评价,结果显示:近年来京津冀生态系统质量有明显提升.京津冀区域28%的森林生态系统质量有改善,3%左右的森林生态系统质量存在下降趋势.2010-2015年,京津冀城市群净初级生产力呈现出较小波动变化趋势.相较于2000-2010年,京津冀城市群森林生态系统植被覆盖度的变化,只有高植被覆盖度区域呈现出增加的趋势.

Based on the status of the evaluation of the ecological quality in Beijing-Tianjin-Hebei Region and using Geographic Informat ion System(GIS)spatial analysis function,we have respectively assessed the spatial characteristics of the ecological quality,net primary productivity evaluation of forest ecosystem and covering grade of forest ecosystem vegetation on regional ecological quality classification.We have taken the research on the characteristics of resources,environment,the natural capital bearing force,regional economic and social development.The results show that,in the recent years,the ecosystem quality has improved significantly Beijing-Tianjin-Hebei Region.The quality of forest ecosystem improves by 28%and the quality of forest ecosystem decreases about 3%.The net primary productivity of Beijing-Tianjin-Hebei Urban Agglomeration shows a small fluctuation trend from 2000-2010.Compared with the years of 2000-2010,the high vegetation coverage takes the increasing trend in the change of vegetation coverage of forest ecosystem in Beijing-Tianjin-Hebei Region.