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| 基于信息熵与分形理论的土地利用景观格局变化研究——以陕北农牧交错带为例 | |
| 引用本文： | 贾科利,张俊华,常庆瑞.基于信息熵与分形理论的土地利用景观格局变化研究——以陕北农牧交错带为例[J].干旱地区农业研究,2009,27(5):235-239. |
| 作者姓名： | 贾科利 张俊华 常庆瑞 |
| 作者单位： | 1. 宁夏大学资源环境学院,宁夏,银川,750021 2. 宁夏大学新技术应用研究开发中心,宁夏,银川,750021 3. 西北农林科技大学资源环境学院,陕西,杨凌,712100 |
| 基金项目： | 国家自然科学基金项目 |
| 摘 要： | 信息熵和分形理论为研究地理学中复杂结构现象的不稳定性和系统的有序性提供了一条新途径,在土地利用景观格局变化领域有着广阔的前景.以信息熵和分形理论为指导,在遥感和GIS技术支持下,对陕北农牧交错带土地利用景观格局演变的分形特征和信息熵进行了分析,结果表明:1986～2003年,陕北农牧交错带土地利用景观结构趋于简单化,景观类型在空间上的稳定性逐渐增大;土地利用景观结构信息熵总体上呈逐渐上升趋势,即土地利用无序度逐渐上升,而有序度逐渐降低. |
| 关 键 词： | 土地利用 景观格局 信息熵 分形 陕北农牧交错带 |
Land use landscape pattern changes based on information entropy and fractal theory——A case study of the farming-pastoral region of northern Shaanxi |
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| JIA Keli,ZHANG Junhu,CHANG Qingrui.Land use landscape pattern changes based on information entropy and fractal theory——A case study of the farming-pastoral region of northern Shaanxi[J].Agricultural Research in the Arid Areas,2009,27(5):235-239. | |
| Authors: | JIA Keli ZHANG Junhu CHANG Qingrui |
| Institution: | JIA Ke-li1,ZHANG Jun-hua2,CHANG Qing-rui3(1.School of Resources and Environment,Ningxia University,Yinchuan,Ningxia 750021,China,2.The Applied Research and Development Center For New Technology,3.College of Resources and Environment,Northwest A & F University,Yangling,Shaanxi 712100,China) |
| Abstract: | The fractal theory and information entropy have provided a new approach for study of some geographical phenomena,such as instability and complex structure and orderlies,and it has a broad prospect for application in land use landscape pattern study.Guided by the fractal theory and information entropy and the techniques of remote sensing and technology support of GIS,the patch fractal dimension and stability index and Shannon entropy of landscape were calculated in the farming-pastoral region of northern Sha... |
| Keywords: | land use landscape pattern information entropy fractal farming-pastoral region of northern Shaanxi |
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