摘要
由于自然、人为的干扰,城市森林公园生态环境存在着快速的时空变化。以南京紫金山国家森林公园为研究区域,以免费的2001—2010年Landsat卫星时间序列堆栈(LTSS)数据为主要信息源,进行生态环境及驱动因素时间序列分析。研究表明:2001—2010年间,研究区域的生态环境质量在空间分布上,由外缘向山脊依次呈现较差、中等、良好、优秀分布格局;研究区域生态环境综合指数呈现上下波动、整体良好、缓慢上升趋势;研究区域的森林干扰指数呈现迅速上升、缓慢上升后迅速下降、缓慢上升、稳步下降的复杂变化趋势。降低外来病虫害等自然干扰影响,拆除外围景区违章建筑是提高区域生态环境质量的主要措施。
Due to impacts of natural and man-made disturbances, the ecological environment of Urban Forest Park has been experiencing rapid spatial and temporal changes. In this paper, Zijin Mountain National Forest Park in Nanjing was chosen as the study area, and free Landsat time series stacks （LTSS） data from 2001 to 2010 were collected as the main information source to do time trajectory analysis of regional ecological environment and divers during this period. Studies showed that： （ 1 ） during 2001 to 2010, from the outer edge to the central ridges, the spatial distribution of ecological environment quality in the study area showed a ring pattern of poor, medium, good and excellent; （2） The regional ecological environment index fluctuated up and down, but was general good with an slowing upward trend; （3） The forest disturbance index in study area first increased rapidly, then increased slowly followed by rapid decline, slowly rising, steady decline. Reducing the impacts of alien pests and other natural disturbances, demolishing illegal buildings in outer edge areas, increasing forest coverage, are the main forest management measures to improve the ecological environment quality.
出处
《林业调查规划》
2015年第5期53-57,共5页
Forest Inventory and Planning
基金
江苏省大学生创新省级重点项目"都市郊区森林生态环境变化及驱动性因素时间系列分析"(201510298051Z)
关键词
生态环境质量
森林干扰指数
时间序列分析
紫金山森林公园
ecology environment quality
forest disturbance index
time trajectory analysis
Zijin Mountain Forest Park
