摘要
针对如何衡量海南岛自然保护区生态环境状况及保护有效性的问题,提出了采用地表覆盖变化监测进行客观评价的方法。基于遥感分类信息提取,统计分析了海南岛及其自然保护区土地覆盖变化情况,在2000—2017年间海南岛40.838%的自然地表转换成了人工地表;75%的保护区变化量小于面积的30%,接近10%的保护区变化量大于面积的50%;随高程和坡度增加,各类型土地覆盖变化程度均减小;保护区内部变化与其周边3 km和6 km范围内的变化相关,而与较远区域9 km的变化无关。研究结果表明,海南岛土地覆盖变化显著、各自然保护区变化状况并不一致、地形和周边范围均对地表变化产生一定影响。该方法可为海南岛及其自然保护区的生态建设提供参考。
Aiming at the problem of how to measure the ecological environment status and protection effectiveness of nature reserve in Hainan Island,an objective evaluation method based on the monitoring of land cover change is proposed.Based on the extraction of remote sensing classification information,the land cover change of Hainan Island and its nature reserve was analyzed statistically.During the years of 2000 to 2017,40.838%of the natural surface of Hainan Island was converted into artificial surface.In 75%of the protected areas,the change amount is less than 30%of the area,and in nearly 10%of the protected areas,the change amount is greater than 50%of the area.With the increase of elevation and slope,the change degree of each type of land cover decreases.The changes in the protected area are related to the changes within the range of 3 km and 6 km,but not to the changes within the distance of 9 km.It shows that the land cover changes significantly in Hainan Island,the changing status of each nature reserve are not consistent,and the topography and surrounding area all have certain influence on the surface change.The research results can provide reference for the ecological construction of Hainan Island and its nature reserve.
作者
李一琼
白俊武
张丽
穆晓东
LI Yiqiong;BAI Junwu;ZHANG Li;MU Xiaodong(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou,Jiangsu 215009,China;Hainan Key Laboratory of Earth Observation,Sanya,Hainan 572029,China;Key Laboratory of Digital Earth Science,Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,Beijing 100094,China;Hainan Provincial Research Academy of Environmental Science,Haikou 570100,China)
出处
《测绘科学》
CSCD
北大核心
2020年第7期82-90,共9页
Science of Surveying and Mapping
基金
中国科学院战略性先导科技专项(A类)资助(XDA13020506)
江苏省自然科学基金资助项目(BK20170379)。
关键词
自然保护区
土地覆盖变化
遥感技术
海南岛
nature reserve
land cover change
remote sensing technique
Hainan Island
