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基于空间景观格局的区域耕地坡度分级量算工艺流程及应用——以大连市甘井子区为例

发表时间:2009-07-31  浏览量:1678  下载量:536
全部作者: 杨俊,李雪铭,李永化,曲玮,张森
作者单位: 辽宁师范大学城市与环境学院;辽宁师范大学人居环境研究中心;大连国土资源与房屋局
摘 要: 分析大连市甘井子区1∶10 000土地利用数据库中耕地图斑的空间景观格局;讨论大连市甘井子区耕地图斑坡度级与数字高程模型(digital elevation model,DEM)的尺度关系;提出地理信息系统(geography information system,GIS)技术结合DEM的区域耕地图斑坡度级量算的工艺流程,并且通过GIS程序设计实现了区域耕地坡度级的自动提取。通过耕地图斑的坡度级有效测算田坎系数以及耕地图斑的净面积,为大连市甘井子区第二次土地耕地数据库提供科学依据,并为该地区耕地保护、耕地潜力分析和生态环境保护提供空间决策支持。
关 键 词: 地图制图技术;空间景观格局;耕地坡度级;数字高程模型尺度;地形分析
Title: Regional cultivated land slope classification process based on spatial landscape pattern and application thereof: the case of Ganjingzi district of Dalian
Author: YANG Jun, LI Xueming, LI Yonghua, QU Wei, ZHANG Sen
Organization: College of Urban and Environmental Sciences, Liaoning Normal University;Human Settlement Environmental Research Center, Liaoning Normal University;Dalian Municipal Bureau of Land Resources & Housing Management
Abstract: This paper analyzes the spatial landscape pattern of the cultivated land patch in 1∶10 000 landuse database of Ganjingzi district of Dalian; discusses the relationship between regional landuse cultivated land slope classification and digital elevation model (DEM) scale; presents the regional cultivated land slope classification process by use of geographic information system (GIS) combined with DEM; realizes the cultivated land slope level automatic extraction through GIS program; calculates the field ridge coefficient and the cultivate land net area through the cultivated land slope classification. And also provides a scientific basis for the cultivated land database of the Ganjingzi district; and provides spatial decision-making support for protection and potentiality analysis and ecological and environmental protection of the cultivated land.
Key words: mapping technique; spatial landscape pattern; slope level of cultivated land; digital elevation model scale; terrain analysis
发表期数: 2009年7月第14期
引用格式: 杨俊,李雪铭,李永化,等. 基于空间景观格局的区域耕地坡度分级量算工艺流程及应用——以大连市甘井子区为例[J]. 中国科技论文在线精品论文,2009,2(14):1492-1497.
 
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