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基于移动窗口法的中国东北地区景观格局 被引量:21

Landscape pattern in Northeast China based on moving window method
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摘要 基于GIS技术,利用移动窗口法,对2006年中国东北地区景观格局特征及其与水分梯度、热量梯度、海拔因子和人为干扰因子的相关关系进行了研究.结果表明:2006年,中国东北地区林地景观所占比例最大,为61.69%,耕地次之,占25.11%;中国东北地区的景观多样性具有圈层结构的特点,为破碎化程度较高的敏感区域提供了缓冲区间,使不良的生态后果可以控制在一定区域内;研究区景观格局指数与水分梯度、热量梯度的相关系数均在0.4以下,与海拔因子的相关系数在0.07以下,相关性不高说明研究区景观格局的异质性不是由单一的自然因素所决定. Based on GIS technology and by using moving window method, the characteristics of landscape pattern in Northeast China in 2006 and the relationships between these characteristics and environmental factors such as precipitation, air temperature, altitude and human activities were studied. In the study area in 2006, forest land had the largest proportion, followed by the cultivated land, occupying 61.69% and 25.11% of the total respectively, and the landscape diversity had the characteristics of circle-zoning structure, which provided a buffer region for fragmented and sensitive regions, making the adverse ecological consequences be reduced to or restricted in a definite scale. The correlation coefficients of landscape indices with precipitation and air temperature were less than 0. 4, and those with altitude were less than 0. 07, illustrating that the heterogeneity of landscape pattern in study area was not dependent on single natural factors.
作者 刘昕 国庆喜 LIU Xin, GUO Qing-xi (College of Forestry, Northeast Forestry University, Harbin 150040, China)
出处 《应用生态学报》 CAS CSCD 北大核心 2009年第6期1415-1422,共8页 Chinese Journal of Applied Ecology
基金 国家科技部科技基础性工作专项(2005CB724800)资助.
关键词 移动窗口 景观指数 梯度分析 东北地区 moving window landscape indices gradient analysis Northeast China
作者简介 刘昕,女,1983年生,硕士研究生.主要从事景观生态学研究.E-mail:liuxinmate@163.com 通讯作者.E-mail:gqx@nefu.edu.cn
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