摘要
在总结传统土地利用变化模型的基础上,从总动态度、地类活跃度、用途转换波动度层面构建了土地利用动态分析模型,并以4期遥感数据为研究数据揭示了21年来重庆主城区土地利用总动态变化度、类型转换活跃度以及转入与转出的波动度。提出了地类活跃度、用途转换波动度概念,构建了相应的分析模型,并从"源""汇"理念对用地类型转入与转出的波动度情况进行了深入分析,弥补了现有分析模型的不足。该系列分析结果可为城市动态模拟的用地需求预测、转换规则建立及其他参数的设置提供参照,也可为完善现有动态模拟模型的用地转换规则、提高模型的适用性起到积极作用。
Based on the summarizes of traditional land use change models, from three levels of total dynamic degree, land use activity and volatility between land conversions, this paper built land use dynamic analysis models. It makes the main urban areas of Chongqing as an example, through processing of TM image information to reveal the total changes of land use dynamic de- gree, conversion activity of land use and volatility for a certain land use＇s gain and loss for 21 years. Concepts such as land use activity, volatility of land conversions were proposed, corresponding models were built, and made thorough analysis of volatility of certain land use＇s gain and loss from the ideas of source and sink, which make up for the deficiencies of existing analytical models. These results of series analysis can not only provide references to demands of land use, conversion rules and other parameters in land use dynamic simulation models, but also play a positive role in perfecting land conversion rules and applicability of models.
出处
《地理与地理信息科学》
CSCD
北大核心
2013年第3期86-91,共6页
Geography and Geo-Information Science
基金
重庆市自然科学基金项目CQ CSTC(Grant NO.2011jjA30014)
关键词
“源”“汇”理念
土地利用动态度
地类活跃度
用途转换波动度
重庆市
concepts of source and sink
land use dynamic degree
activity of land use
volatility of land use conversions
Chongqing
