东北农牧交错区景观空间格局  

The landscape pattern of the ecotone between agriculture and animal husbandry in Northeast China

作　　者：梁存柱[1,2] 祝廷成[1] 周道玮[1] 

机构地区：[1]东北师范大学草地研究所,植被生态科学教育部重点实验室,吉林长春130024 [2]内蒙古大学生态与环境科学系,内蒙古呼和浩特010021

出　　处：《东北师大学报（自然科学版）》2008年第4期121-127,共7页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家科技支撑计划项目(2006BAD16B06)

摘　　要：利用遥感与地理信息系统技术对我国东北农牧交错区景观格局与成因进行了系统研究.结果表明:(1)东北农牧交错区可划分为2个一级景观类型,9个二级景观类型和69个三级景观类型.一级景观中自然景观约占总面积的57.1%,人工景观约占42.9%.(2)本区是一个以农业为主的农、林、牧结合的交错区,农、林、牧比例大体为3∶2∶1.(3)在大尺度景观背景下,山地和低山丘陵景观均呈条带状连续分布格局,大体沿东北—西南向贯穿于整个景观中;沙地景观集中分布于中南部;高平原、平原自然植被景观、人工建筑景观和人工林景观面积均很小.(4)在中小尺度水平上,景观格局主要体现在三级景观类型的空间布局上,并在不同的区域表现出不同的分布特征.This paper is a comprehensive account of the landscape pattern of the ecotone between agriculture and animal husbandry in Northeast China by using the ways of remote sensing （RS）, geographic information system （GIS）. The primary conclusions are as follows：（1）The patch types are made up of 2 high-level types, 9 secondary types and 69 low-grade types. The similar degree of farmland landscape with regional landscape of is topmost and is primary landscapes. The mountain landscape is secondly. The two large landscapes form the framework of the ecotone between agriculture and animal husbandry in the Northeast China. The patch number and density of bottomland landscapes is the maximum. The area of fluvial landscapes is smaller, but the patch perimeter is biggish. （2）This region is an ecotone of agriculture , animal husbandry and woods, and the proportion is about 3 ： 2 ： 1. （3） In broad-scale, the landscape of mountains and uplandform zonary pattern, and run through continuous farmland landscape. （4）In in each area. regional landscape from northeast to fine scale, the distributing pattern of southwest, and east side there is low-grade types is very different

关 键 词：东北农牧交错区 景观类型 景观格局 

分 类 号：Q149[生物学—生态学]