| 松嫩平原土地利用/覆被变化的动态过程分析——以大庆市杜尔伯特蒙古族自治县为例 |
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| 引用本文： | 白淑英,张树文,张养贞.松嫩平原土地利用/覆被变化的动态过程分析——以大庆市杜尔伯特蒙古族自治县为例[J].资源科学,2007,29(4):164-169. |
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| 作者姓名： | 白淑英 张树文 张养贞 |
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| 作者单位： | 1. 南京信息工程大学遥感学院,南京,210044
2. 中国科学院东北地理与农业生态研究所,长春,130012 |
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| 基金项目： | 南京信息工程大学校科研和教改项目 |
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| 摘 要： | 本文以大庆市杜尔伯特蒙古族自治县为例，利用1954年～2001年5个时期的土地利用数据，在遥感和GIS技术支持下，采用逐个图斑跟踪记录的方法，动态监测每个图斑在各个时段的变化过程。从研究起始时间开始从来没变过，或变化次数较少的空间单元称为趋向稳定类型的转换，而变化次数较多的空间单元称为趋向不稳定类型的转换。根据每一土地单元土地利用变更次数的多少对土地利用/覆被变化的敏感性进行分析。将研究区某一时段内的土地利用变化划分为未变更类型、人类干扰型、自然演化型3种类型，分析了各种用地类型转换过程中土地利用方式的稳定程度。研究结果表明：①水域和与人类活动关系密切的城镇及居民用地、耕地最为稳定；其次是土地退化的盐碱地和未利用土地；沼泽地、林地、草地稳定性较差；②当未变更类型和自然演化类型向人类干扰型转变后，土地利用方式将趋于稳定，在下一时段变化的可能性较小；未变更类型和人类干扰型向自然演化型转变后，土地利用方式趋于不稳定，在下一时段发生变化的概率较大。
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| 关 键 词： | 土地利用变化 土地利用转化 敏感性 稳定性 |
| 文章编号： | 1007-7588（2007）04-0164-06 |
| 修稿时间： | 2006-10-272007-01-30 |
Analyzing Dynamic Process of Land Use Change in Songnen Plain of China: A Case Study in Duerbote Mongolian Autonomous County of Daqing City |
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| BAI Shu-ying,ZHANG Shu-wen and ZHANG Yang-zhen.Analyzing Dynamic Process of Land Use Change in Songnen Plain of China: A Case Study in Duerbote Mongolian Autonomous County of Daqing City[J].Resources Science,2007,29(4):164-169. |
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| Authors: | BAI Shu-ying ZHANG Shu-wen and ZHANG Yang-zhen |
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| Abstract: | Today,many environmental problems facing people are related to land use/land cover change.It is very important to hold a general and objective viewpoint to the detailed dynamic process of land use/land cover change.In this paper,Duerbote Mongolian Autonomous County in Daqing City was selected as a case study area,five periods of land use data from 1954 to 2001 is used to study the land use change process during the past 50 years by recording every patch of land use type based on remote sensing and GIS technology.The patches of land use change in a certain period were classified into three types of land use conversion,namely,unchanged type,human disturbance type,and natural evolution type.The stability of land use tendency in the process of land use conversion was also analyzed.The results are as follows: 1) Different land use type has different stability of land use conversion.Water area,urban areas,residential areas and cultivated land are the most stable one;degenerated saline-alkali land and other hardly used land are in the second place;wetland,woodland and grassland are most unstable one.This indicates that once the land is reclaimed and used as cultivated land,they will not be abandoned in a long period.Water area and wetland couldn't easily be changed for other purpose;yet degraded saline-alkali land was with a little change because of its difficult improvement.Wetland and grassland had a good degree of transformation because of their unstable state where the conversion between grassland,wetland,water areas and saline-alkali land was mainly affected by precipitation;2) the stability of land use tendency also varies from different land use change types.If the conversion is from unchanged type or natural evolution type to human disturbance type,then,the patch of land use type tends stable,and there is only a remote possibility of land use change in the next period;on the contrary,if the conversion of land use change is from unchanged type or human disturbance type to natural evolution type,the patch of land use type tends unstable in the next period,which indicate land use conversion tends to be the type of maximizing its value of productivity.This method that distinguished the influence of people's behaviors on land use and natural change is helpful for showing the laws of regional land use/cover change. |
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| Keywords: | Land use change Type of land use conversion Sensitivity |
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