| 中国北方13省土地利用景观格局变化分析(1989～1999) |
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| 引用本文： | 李月臣,宫鹏,陈晋,刘春霞,何春阳.中国北方13省土地利用景观格局变化分析(1989～1999)[J].水土保持学报,2005,19(5):143-146. |
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| 作者姓名： | 李月臣 宫鹏 陈晋 刘春霞 何春阳 |
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| 作者单位： | [1]环境演变与自然灾害教育部重点实验室,北京师范大学资源学院,北京100875 [2]遥感科学国家重点实验室,中国科学院遥感应用研究,北京100101 [3]重庆师范大学地理科学学院,重庆400047 |
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| 基金项目： | 中国科学院海外杰出学者基金（2000-1-13）;科技部国家基础条件平台建设专项（2004DKA10060）资助 |
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| 摘 要： | 以北方13省为研究区，对该区1989～1999年的宏观土地利用景观格局变化进行了分析。结果表明：决定该区景观格局的主体要素类型为草地、难利用地和林地．其次为耕地。1989～1999年期间，区内景观异质性程度在逐渐提高．土地利用向着多样化和均匀化方向发展。景观空间格局变化特征是：耕地、林地和城镇用地破碎度最大；林地、草地和水域受到人类活动的严重干扰．斑块空间分布不断分散和破碎化．分离度和破碎度指标增加。草地的破碎度增加最为显著，严重影响该区农牧业的正常生产。景观要素之间的转化关系主要表现为林、草地和耕地之间的相互转化．以及草地退化为难利用地。表征了该区生态建设实践和生态破坏活动的相互作用以及草地的严重退化趋势．说明北方13省存在较为严重生态环境问题．急需解决。
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| 关 键 词： | 景观格局变化 土地利用 北方13省 |
| 文章编号： | 1009-2242（2005）05-0143-04 |
| 收稿时间： | 2005-04-06 |
| 修稿时间： | 2005-04-06 |
Landscape Pattern and Its Dynamical Change in North China During 1989～1999 |
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| I.I Yue-chen,GONG Peng,CHEN Jin,LIU Chun-xi,HE Chun-yang.Landscape Pattern and Its Dynamical Change in North China During 1989～1999[J].Journal of Soil and Water Conservation,2005,19(5):143-146. |
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| Authors: | II Yue-chen GONG Peng CHEN Jin LIU Chun-xi HE Chun-yang |
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| Institution: | I.I Yue-chen, GONG Peng, CHEN Jin, LIU Chun-xia, HE Chun-yang (1. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China, College of Resources Sciene |
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| Abstract: | The landscape pattern and its dynamical change of the 13 provinces in the North China during 1989~1999 have been analyzed in the paper by using RS,GIS and FRAGSTATS,which are based on the 1 km NDVI images in 1989 and 1999.The results show that grasslands,unable land and forests are the main landscape types in the research areas.During 1989~1999,the landscape pattern become diversification and evenness.As a whole,the fragmentation of arable land,forests and cities and residential areas are bigger than other landscape types.Human seriously disturbs forests,grasslands and water areas.Grasslands become more and more fragmentized,the fragmentation of grassland increases from 19.23% to 41.69%.The transition between the landscape types is mainly the changes between forests,grasslands and arable land and grasslands changing to unable land.The ecological environment in the area is obviously degenerated due to the human activities. |
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| Keywords: | landscape pattern change land use 13 provinces in North China |
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