东北老工业区植被覆盖度时空特征及城市化关联分析  

Spatial-temporal characteristics of vegetation coverage and its correlation with urbanization in traditional industrial area of Northeastern China

作　　者：肖骁 李京忠[1,2] 韩彬 逯承鹏 薛冰[1] XIAO Xiao;LI Jingzhong;HAN Bin;LU Chengpeng;XUE Bing(Lab for Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences,Shenyang 110016, China;College of Urban and Rural Planning and Landscape, Xuchang University, Henan 461000, China)

机构地区：[1]中国科学院污染生态与环境工程重点实验室/中国科学院沈阳应用生态研究所,沈阳110016 [2]许昌学院城乡规划与园林学院,许昌461000

出　　处：《生态科学》2017年第6期71-77,共7页Ecological Science

基　　金：国家自然科学基金(41471116;41701142);中国科学院青年创新促进会(2016181);辽宁省自然科学基金(201602743;20170540898)

摘　　要：植被覆盖度研究一直是揭示自然生态系统演化以及人类活动与环境演化关系的重要路径。基于MODIS数据,结合像元二分模型和一元线性回归方法,定量估算东北老工业区2000—2015年的植被覆盖度及其时空变化特征,并特别分析辽宁省植被覆盖度变化与城市化水平的关系。结果表明,1)东北老工业区的植被覆盖度呈现"中部高-东西低-西部最低"的空间分布态势;2)黑龙江省和吉林省高植被覆盖区明显增加,但辽宁省高植被覆盖区面积比重由2000年全省总面积的49.99%下降到2015年的25.99%,这一变化情况在辽宁省城市化水平的空间差异中得到进一步的验证;3)除部分辽西城市植被退化趋势严重并且逐渐向东蔓延,东北老工业区植被覆盖表现出增加的趋势,特别是黑吉两省与内蒙古交界的大部分地区植被覆盖度明显提高。研究结果阐明了东北老工业区植被演化格局与过程,对推动绿色可持续转型及生态文明建设具有重要意义。Study on vegetation coverage is very important for revealing the evolution of natural ecosystem as well as the relationship between human activities and environmental evolution.Based on the MODIS data and by combining the dimidiate pixel model with simple linear regression method,this research quantitatively estimated the vegetation coverage and its spatial-temporal variation characteristics in traditional industrial area of northeastern China during2000-2015,and the relationship between the change of vegetation coverage and the level of urbanization in Liaoning province was especially analyzed.The results show that:1)the spatial distribution of the vegetation coverage appeared to be“central-high,west and east-low,west-lowest”;2)high vegetation coverage areas increased significantly in Heilongjiang province and Jilin province.However,in Liaoning province,the high vegetation coverage area accounted the proportion of the province's total area fell from49.99%to25.99%during2000-2015,which was further verified by the spatial difference of Liaoning province's urbanization level;3)in addition to the vegetation degradation trend that seriously and gradually spread eastward in some western Liaoning cities,the vegetation coverage in most traditional industrial areas of Northeastern China showed increasing trend,especially in most Heilongjiang and Jilin province areas adjacent to Inner Mongolia.The research results show the vegetation evolution pattern and process of the traditional industrial area of Northeastern China,and have an important significance to promote the sustainable transformation of the green and ecological civilization construction.

关 键 词：植被覆盖度 城市化 像元二分模型 东北老工业区 

分 类 号：Q948.1[生物学—植物学] Q149