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| 土地利用/土地覆被时空分布100 年数字重建 ———以大庆市杜尔伯特蒙古族自治县为例 | |
| 引用本文： | 白淑英,张树文,张养贞.土地利用/土地覆被时空分布100 年数字重建 ———以大庆市杜尔伯特蒙古族自治县为例[J].地理学报,2007,62(4):427-436. |
| 作者姓名： | 白淑英 张树文 张养贞 |
| 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 |
| 基金项目： | 南京信息工程大学校科研和教改项目 |
| 摘 要： | 长时间序列的土地利用/土地覆被数据是开展全球变化、可持续发展及生态安全等各项研究的重要基础.然而,早期的土地利用/土地覆被数据,特别是卫星遥感数据出现之前的土地利用/土地覆被信息通常很难获取.利用TM、MSS遥感影像数据和地形图、气候、地质、地貌、土壤、植被、水文等自然环境背景图件以及数据,社会经济统计数据等多源数据,选择大庆市杜尔伯特蒙古族自治县作为典型案例区,在GIS技术支持下建立了土地利用/土地覆被数字重建模型,再现了典型研究区20世纪30年代和50年代土地利用/土地覆被空间分布状况.通过野外调查和历史文献资料对土地利用数字重建结果进行精度评价并初步得到以下结论:①采用逐个图斑跟踪记录的方法对研究区各个时期土地利用/覆被变化的敏感性进行分析,有利于揭示区域土地利用/土地覆被变化的规律;②在定量、定位分析环境背景对土地利用/土地覆被分布及其变化的影响基础上,综合判断各种土地利用/土地覆被分布概率,其结果可为土地利用数字重建提供依据;③对1∶10万地形图提取土地利用信息的可行性与可信度分析表明,地形图中土地利用信息完全能够达到一级土地利用分类精度,同时疏林地、灌木林、沼泽地、盐碱地、沙地等二级分类信息也能获取. |
| 关 键 词： | 土地利用 土地覆被 历史时期 数字重建 大庆 |
| 收稿时间： | 2006-09-28 |
| 修稿时间： | 2006-12-22 |
Digital Rebuilding of LUCC Spatial-temporal Distribution of the Last 100 Years: Taking Dorbod Mongolian Autonomous County in Daqing City as an Example |
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| BAI Shuying,ZHANG Shuwen,ZHANG Yangzhen.Digital Rebuilding of LUCC Spatial-temporal Distribution of the Last 100 Years: Taking Dorbod Mongolian Autonomous County in Daqing City as an Example[J].Acta Geographica Sinica,2007,62(4):427-436. | |
| Authors: | BAI Shuying ZHANG Shuwen ZHANG Yangzhen |
| Institution: | 1. College of Remote Sensing, Nanjing University of Information Science & Technology, Nanjing 210044, China; 2. Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China |
| Abstract: | Historical land use and land cover change (LUCC) data is very important for research of such problems as global environmental change, sustainable development, ecological security, and so on. However, acquiring early LUCC data is not easy, especially getting the data before satellite images came into being. In this paper, by making use of many sources of data such as TM, MSS images, physical environmental background maps including terrain, climate, geology, soil, vegetation and hydrology as well as socioeconomic statistical data, taking Dorbod Mongolian Autonomous County in Daqing City as a case study area, a digital rebuilt model of LUCC was made for the period without satellite remote sensing data based on GIS technology. This model consists of sensitive area analysis submodel, spatial analysis submodel, land use distribution probability submodel, spatial layout submodel, etc. The model was used to reproduce the LUCC spatial-temporal distribution in this study area from the 1930s to 1950s. Finally, the precision of the modeling results was evaluated by field investigation and statistical data in historical literature. The results are shown as follows: (1) The rule of land use/land cover change can be easily revealed by using the method of recording every patch of land use type and analyzing the sensitivity of land use/land cover change in each period. (2) The impact of environmental background on land use/land cover change was analyzed quantitatively and orientationally, thereby the distribution probability of land use/land cover type in each patch was calculated. This distribution probability can provide the basis for LUCC rebuilding. (3) The feasibility and reliability of extracting land use information from topographic maps were also analyzed. The result showed that according to land use classification system adopted in this research, all of the first grade land use types can be well extracted from 1:100000 topographic maps, and furthermore, some of the second land use types such as scattered woodland, shrub land, wetland, saline-alkali land and sandy land can also be obtained from those maps. |
| Keywords: | LUCC historical period digital rebuilding relief map Daqing |
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