摘要
云南大山包自然保护区是黑颈鹤越冬的重要栖息地,以保护区GF-2影像及DEM为数据源,选取地表覆被、人为干扰、地形因子等作为评价指标,采用层次分析法确定评价指标权重。使用线性加权模型,在遥感、地理信息技术的支持下开展大山包自然保护区黑颈鹤觅食区适宜性评价研究,结果显示:1)保护区分布有黑颈鹤适宜觅食区10989.53 hm^(2),其中,最宜觅食区面积3429.41 hm^(2),占保护区总面积的17.82%;2)空间分布上,最宜觅食区集中分布在保护区的中部、中北部及西南边缘部分区域,次宜觅食区在保护区均匀分布;3)最宜觅食区大面积连片分布少,呈现斑块数量多、面积小、几何形态破碎度较大的特征。基于此,在后续保护区规划、建设中,应进一步加强对黑颈鹤觅食区的监管、减少人为干扰,并采取有效措施,不断恢复和提升黑颈鹤觅食区的生态环境条件,促成黑颈鹤觅食区面积的连片扩增和质量改善,为保护区黑颈鹤种群恢复、湿地生态系统的保护等提供保障。
Dashanbao nature reserve is located in Yunnan Province,China,which is an important habitat for black-necked cranes for wintering.Based on remote sensing and geographic information technology,using GF-2 image and DEM of the Dashanbao nature reserve as the data source,selecting surface cover,human disturbance,topographic factor,etc.as the evaluation indicators,using the analytic hierarchy process determine the weight of the evaluation indicators,based on geoinformation technology,using weighted index model,the suitability of the foraging area of the black-necked crane in Dashanbao nature reserve was evaluated.The results show:(1)the Dashanbao nature reserve is distributed with the black-necked crane foraging area of 10989.53 ha,of which the most suitable foraging area is 3429.41 ha,accounting for 17.83%of the total area of the Dashanbao nature reserve;(2)in the spatial distribution,the most suitable foraging area is concentrated in the central,central and southwestern margins of the Dashanbao nature reserve,and the general foraging area is evenly distributed in Dashanbao nature reserve;(3)it is relatively rare for the most suitable foraging area to be distributed with large area contiguously,shows the characteristics of a large number of plaques,small area,and fragmented geometry.Based on the above conclusions,in the planning and construction of the follow-up Dashanbao nature reserve,it is necessary to strengthen the supervision of the black-necked crane foraging area and reduce human interference,constantly restore and enhance the ecological environment conditions of the foraging area of the black-necked crane,promote the area increase and quality improvement of the black-necked crane foraging area,and provide the security for the protection of the wetland ecosystem of the Dashanbao nature reserve and the restoration of the black-necked crane population.
作者
吴风志
王金亮
申娟
胡文英
郑买红
道美标
WU Fengzhi;WANG Jinliang;SHEN Juan;HU Wenying;ZHENG Maihong;DAO Meibiao(College of Environment&Resources,Wenshan University,Wenshan 663000,China;Geographical Information Technology Teaching&Experimental Base and Innovation Service Center,Wenshan University,Wenshan 663000,China;College of Tourism and Geographic Sciences,Yunnan Normal University,Kunming 650500,China;Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan,Kunming 650500,China;Center for Geospatial Information Engineering and Technology of Yunnan Province,Kunming 650500,China;The Forestry and Grassland Bureau of Zhaoyang District,Zhaotong 657099,China)
出处
《测绘与空间地理信息》
2021年第8期96-100,共5页
Geomatics & Spatial Information Technology
基金
云南省应用基础研究计划青年项目(2018FD168)
文山学院科学研究基金项目(15WSY18)资助。
关键词
大山包
自然保护区
黑颈鹤
觅食区
评价
Dashanbao
nature reserve
black-necked crane
foraging area
suitability evaluation
