高原交通干线对土地利用和景观格局的影响——以兰州至格尔木段为例
收稿日期: 2002-06-28
修回日期: 2002-09-16
网络出版日期: 2003-01-25
基金资助
国家重点基础研究发展规划项目 (G1998040800); 国家自然科学基金项目 (90202012); 中科院地理科学与资源研究所知识创新工程领域前沿项目 (CXIOG-E01-01和CXIOG-A00-03-02)
Main Effect of Plateau Traffic on Land Use and Landscape Pattern Change: From Lanzhou to Golmud
Received date: 2002-06-28
Revised date: 2002-09-16
Online published: 2003-01-25
Supported by
National Key Basic Research Special Fund, No.G1998040800; National Natural Science Foundation of China, No.90202012; Knowledge Innovation Project of the Institute of Geographic Sciences and Natural Resources Research of CAS, No.CXIOG-E01-01; No.CXIOG-A00-03-02
运用景观生态学方法和Arc/Info软件，研究1995年至2000年 兰州至格尔木铁路沿线的区域土地利用和景观格局变化，分析交通干线 (公路和铁路) 的影响程度与范围。主要结果如下：(1) 东线土地利用和景观格局没有发生显著变化，西线土地利用和景观格局变化较大；(2) 东线缓冲带土地利用程度综合指数没有显著变化，西线缓冲带土地利用程度综合指数明显升高。缓冲带综合土地利用动态度的变化反映了交通干线的轴向影响规律; 兰州至西宁铁路对土地利用变化的显著影响范围是5 km, 青藏铁路对土地利用变化的显著影响范围是7 km；(3) 9个城市缓冲带的土地利用变化分析表明：城市扩展主要发生在1 km缓冲带内。
阎建忠,张镱锂,刘林山,沈振西,刘燕华,郑度 . 高原交通干线对土地利用和景观格局的影响——以兰州至格尔木段为例[J]. 地理学报, 2003 , 58(1) : 34 -44 . DOI: 10.11821/xb200301005
Based on digital land use data from 1995 to 2000, the land use and landscape pattern changes of Lanzhou-Xining route and Qinghai-Xizang route are studied on a macro-scale. The conclusions are given as follows: (1) Land use and landscape pattern along the Lanzhou-Xining Railway have not changed notably, while which along the Qinghai-Xizang Railway has changed remarkably. The land use pattern of the Qinghai-Xizang Railway and the Qinghai-Xizang Highway is just in the quick-change stage, so land use change will be fast in the future and built-up land will increase quickly. (2) The comprehensive degree of dynamic land use in the buffer zones of the Lanzhou-Xining Railway and the Qinghai-Xizang Railway shared the same trend, embodying the corridor effect of trunk line upon land use change. The prominent influence range of the Lanzhou-Xining Railway is 5 km, while which of the Qinghai-Xizang is 7 km. (3) The expanding range of city was mainly confined to a 1-km buffer, only Lanzhou showing its expanding range in a 3-km buffer zone.
Key words： land use; diagnostic value of landscape; Lanzhou-Xizang Railway
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