自然保护区人类活动遥感监测效果分析——以广西为例

Effect Analysis on the Remote Sensing Monitoring of Human Activities in Nature Reserves——A Case Study of Guangxi

以雷达遥感和光学遥感影像为数据源,通过变化检测,获取广西林业自然保护区及其500 m影响区范围内的人类活动变化图斑,以2017、2018两个年度人类活动遥感监测为例,建立遥感监测与地面监测相结合的自然保护区生态与资源监测体系。结果表明:2018年比2017年监测的48个林业自然保护区人类活动总斑块减少4 971处,面积减少2 257.38 hm^2;国家级自然保护区人类活动斑块、面积分别减少1 202处、644.15 hm^2,自治区级自然保护区分别减少3 769处、1 613.23 hm^2;核心区人类活动斑块、面积分别减少579处、244.44 hm^2,缓冲区分别减少840处、122.61 hm^2,实验区分别减少1 668处、617.85 hm^2,影响区分别减少1 884处、1 272.26 hm^2,人类活动斑块数及面积均有较大降幅。由此可见,自然保护区生态与资源监测体系可以有效提高自然保护区管护效率。

In this paper, the changing radar and optical remote sensing images were used as the data source to get the change patches of human activities in Guangxi forestry nature reserves and their 500 m affected areas. A case study of the remote sensing monitoring of human activities in 2017 and 2018 was made to establish a nature reserve ecological and resources monitoring system for nature reserves combining remote sensing monitoring and ground monitoring. The results showed that, in 2018 compared with in 2017, in the 48 monitored forestry nature reserves, the total patches of human activities decreased by 4 971 in number, and by 2 257.38 hm^2 in area;the total patches and areas of human activities decreased by 1 202 in number and by 644.15 hm^2 respectively in the national nature reserves,decreased by 3 769 in number and by 1 613.23 hm^2 in area in the autonomous region level, decreased by 579 in number, and 244.44 hm^2 in area in the core protected zones, decreased by 840 in number, and 122.61 hm^2 in the buffer zones, decreased by 1 668 in number, and617.85 hm^2 in the experimental zones, decreased by 1 884 in number, and 1 272.26 hm^2 in the affected zones, showing that both the patches and areas of human activities decreased significantly. The study indicated that the nature reserve ecological and resources monitoring system could effectively improve efficiency for nature reserve management and conservation.