摘要
以兴凯湖国家级自然保护区为研究区域,借助遥感(RS)和地理信息系统(GIS)的技术手段,以1989、2006年2期Landsat TM遥感图像为主要数据源,应用景观生态学的相关原理及方法,选取景观指标定量分析景观格局的时空演变过程。研究结果表明:兴凯湖国家级保护区呈现以水域景观为基质,农田、沼泽景观等相对为主体,其他景观呈补丁状散布其中的主体景观格局;农田景观的面积增加幅度最大,速度最快,主要由草地、林地、沼泽3种景观类型转换而来;研究区域的景观多样性指数减小、均匀度指数减小、优势度指数增大;人类活动是影响该保护区景观时空格局变化的最主要因素,其职能部门在加大其保护力度的同时要加强土地开发利用的合理性,以实现该保护区土地资源的永续利用和可持续发展。
Taking Xingkai Lake National Nature Reserve as the study area,with the help of RS and GIS technologies,the dynamic changes in ecological landscape pattern were quantitatively analysed using the theory and methods of landscape ecology,in accordance with the remote sensing images in 1989 and 2006. Results show that water area is dominant in the study region relative to farmland and wetland,and other types of landscapes are scattered like patches. Farmland with the fastest increase in area was mostly developed from grassland,woodland and marsh. The diversity index and evenness index of landscapes in the study area reduced,while dominance index increased. Human activity is the most important factor influencing the changes in the temporal and spatial patterns of the landscapes. The functional departments should not only enhance their conservation efforts,but also strengthen the rational utilization of land development,so as to achieve the sustainable use and sustainable development of land resources.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2010年第6期53-56,共4页
Journal of Northeast Forestry University
基金
东北林业大学科技创新项目资助
关键词
兴凯湖
景观格局
动态分析
土地利用
Xingkai Lake
Landscape patterns
Dynamic analysis
Land uses
