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| 珠江口沿岸土地利用变化及其地表热环境遥感分析 | |
| 引用本文： | 吕志强,文雅,孙琤,吴志峰.珠江口沿岸土地利用变化及其地表热环境遥感分析[J].生态环境,2010,19(8):1771-1777. |
| 作者姓名： | 吕志强 文雅 孙琤 吴志峰 |
| 作者单位： | 1. 重庆工商大学旅游与国土学院,重庆,400067;广东省生态环境与土壤研究所,广东,广州,510650 2. 华南农业大学信息学院,广东,广州,510642;中国科学院研究生院,北京,100039 3. 广东省生态环境与土壤研究所,广东,广州,510650;中国科学院研究生院,北京,100039 4. 广东省生态环境与土壤研究所,广东,广州,510650 |
| 基金项目： | 国家自然科学基金项目，广东省自然科学团队基金项目，重庆市教委教改项目 |
| 摘 要： | 以遥感和GIS为技术手段,选择四期TM/ETM＋影像为数据源,对珠江口沿岸区域的土地利用及其地表热环境的变化进行了定量分析。1990—2008年期间,建设用地扩展是珠江口区域土地利用变化最为显著的特征,建设用地从1990年的605.50km^2增加到2008年的2394.26km^2。土地利用变化导致区域热环境效应增强,并促使不同土地利用类型在7个热力区间中的组成发生变化。珠江口东岸建设用地在数量上的优势使得珠江口的热力重心始终分布在东岸。研究结果表明,以建设用地扩展为突出特征的土地利用变化,深刻影响着区域热环境。 |
| 关 键 词： | 陆地资源卫星 面向对象分类 建设用地扩展 地表热环境 珠江口沿岸 |
Analysis of land use change and thermal environment in Pearl River Estuary based on remote sensing technology |
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| LV Zhiqiang,WEN Ya,SUN Cheng,WU Zhifeng.Analysis of land use change and thermal environment in Pearl River Estuary based on remote sensing technology[J].Ecology and Environmnet,2010,19(8):1771-1777. | |
| Authors: | LV Zhiqiang WEN Ya SUN Cheng WU Zhifeng |
| Institution: | 1.Tourism and Land College,Chongqing Technology and Business University,Chongqing 400067,China;2.Guangdong Institute of Eco-environment and Soil Sciences,Guangzhou 510650,China;3.South China Agricultural University,Guangzhou 510642,China 4.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China ) |
| Abstract: | Based on remote sensing and GIS technology,the study analyzed the land use change and the thermal environment using four sets of TM/ETM＋ image of 1990,1995,2000 and 2008.The result was that the expansion of built-up area was the most obvious character of land use change during 1990-2008.The built-up area increased from 605.50 km^2 in 1990 to 2 394.26 km^2 in 2008.The land use change induced the thermal intensity increased and caused the proportion of different land use types changed a lot.The high quantity of built-up area distributing in the east part of Pearl River Estuary ensured the thermal centroids for different periods located there.This study indicated the land use change especially the built-up area expansion influenced the regional thermal environment dramatically. |
| Keywords: | landsat TM/ETM＋ object-based classify built-up area expansion land surface thermal environment Pearl River Estuary |
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