摘要
该文通过研究我国各省、市、自治区森林覆盖率的时空分布和演变过程,对第六、七、八次森林资源清查期间的森林覆盖率进行时空特征分析,并探究空气质量与森林覆盖率间的相关性。经过对时间(纵向)上的发展变化及空间(横向)上的区域差异进行对比分析,发现我国森林覆盖率有随时间增加的趋势,在地域分布上具有较明显的聚集效应,其中西部地区的森林覆盖率始终处于全国最低水平,森林覆盖率最高的区域主要集中在我国最南部的几个省份以及华东地区南部。另外,从空气质量与森林覆盖率间的关系来看,森林覆盖率对空气质量具有一定的影响,特别是对SO_2浓度和PM_(10)浓度影响较大。
In this paper, we study the temporal and spatial distribution and evolution of forest coverage in the specific provinces, municipalities and autonomous regions in China, analyse the temporal and spatial characteristics of forest cover dur- ing the sixth, seventh and eighth forest resource inventory, explore the correlation between air quality and forest coverage. Comparing the regional differences of the development and change in time （longitudinal） and spatial （horizontal）, we learn that the forest coverage rate of our country has the tendency of increasing with the time, and it has the obvious accumulation effect in the region distribution. The forest coverage rate of the western region is always at the lowest level in the whole country. The area of the highest forest coverage rate is mainly concentrated in the south of our country and the southern part of East China. In addition, considering the relationship between air quality and forest coverage, forest coverage has a certain impact on air quality, especially the effect of sulfur dioxide concentration and PM10 concentration.
出处
《河北林业科技》
2016年第2期52-55,68,共5页
Journal of Hebei Forestry Science and Technology
关键词
森林覆盖率
时空分布
空气质量
Forest coverage
Temporal and spatial distribution
Air quality
