YUAN Li,ZHAO Yu-sen,GONG Wen-feng,et al.Research on Land Use and Its Landscape Pattern Dynamical Changes Based on RS and GIS in Zhalong Wetland[J].Research of Soil and Water Conservation,2008,15(03):49-53.
基于RS和GIS扎龙湿地土地利用景观格局演变的研究
- Title:
- Research on Land Use and Its Landscape Pattern Dynamical Changes Based on RS and GIS in Zhalong Wetland
- Keywords:
- land use; landscape pattern; change dynamical; landscape index
- 分类号:
- F301.24
- 摘要:
- 利用1995年、2000年和2004年三期遥感资料，在RS和GIS技术支持下，通过土地利用变化幅度、特定转移过程贡献率、土地利用程度综合指数、景观格局指数等研究土地利用的时空演变，揭示各类土地利用数量变化的幅度、空间格局变化和分布特征，探讨土地利用转移过程中的驱动机制与土地利用动态变化与自然生态过程的关系。研究结果表明：区域内各类土地利用在面积及空间位置都发生了不同程度的变化，总体的格局没有发生变化，呈现未利用地（沼泽地）主体的草地、耕地等相对为主体的交错湿地格局；滥牧、滥垦等不合理的人为活动，造成部分草地利用类型的转变和退化，草地区域生态环境恶化；整体景观多样性、均匀度先小幅度减少而后较大幅度增加，土地利用趋于多样化和均匀化，生态环境状况在逐步改善，但完整性较差；对土地的利用一般应按照一定的规划原则进行，做到土地的合理利用，实现土地资源的永续利用和区域可持续发展。
- Abstract:
- Using RS and GIS,the land use range,the prior transfers procedure and contribution,land use degree index and landscape pattern index were used to study the spatial-temperal change of land use based on remote sensing images in 1995,2000 and 2004.we analyze the change of the range and spatial pattern and spatial distribution in this region,which to explain the force driving and the relationship between land use change and natural ecological procedure in land use transfers procedure.The results showed that:the area and spatial location changed in different degree in this region,but the general pattern didn’t changed,the mixed wetland landscape pattern was composed between main no-used land (wetland) and relative principle part of grassland and cropland;the part of grassland changed and degraded because of the irrational man activity (excessive grazing,excessive reclamation).The ecological environment of grassland region was worsen;the whole landscape index of diversity and evenness decreased little and then increased much,the trend of land use was diversity and evenness and the environment improved gradually,but the wholeness was bad;the land use was made rational use based on certain planning project,which made land use continuable and sustainable development of study region.
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备注/Memo
收稿日期:2007-9-17。
基金项目:黑龙江省自然基金项目（c200527）；国家林业局野生动物保护管理项目（020-41325702）
作者简介:袁力（1968- ），男，副研究员，在读博士，从事流域水资源管理与土地生产力恢复研究。E-mail：yuanli@mail.nefu.edu.cn
通讯作者:赵雨森（1957- ），男，教授，博士生导师，主要从事水土保持与荒漠化防治研究。E-mail：zhaoys1957@163.com