西咸一体化驱动的咸阳市热力景观格局时空分异分析  

Spatiotemporal differentiation of thermal landscape pattern in Xianyang City driven by the integration of Xi′an and Xianyang

作　　者：冯晓刚[1] 周在辉[1] 李凤霞[1] 李萌[1] FENG Xiaogang;ZHOU Zaihui;LI Fengxia;LI Meng(School of Architecture,Xi’an Univ.of Arch.&Tech.,Xi′an 710055,China)

机构地区：[1]西安建筑科技大学建筑学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2021年第3期413-420,共8页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：十三五国家重点研发计划子课题(2018YFC0704505);国家自然科学基金青年基金(51608419);陕西省自然科学基金面上基金(2018JM5073);陕西省教育厅专项基金(18JK0453);西安建筑科技大学自然科学专项基金(ZR19001)。

摘　　要：以西咸一体化进程为驱动,以咸阳市1988~2019年热力景观格局时空分异演变特征为研究对象,以多时相、多源异构数据为支撑,采用单窗算法反演得到了多时相热环境数据,结合景观生态学理论,运用斑块总数等景观指数及空间格局移动轨迹方法对咸阳市31年间的热力景观格局时空演变特征进行了剖析.结果表明:(1)咸阳市31年间热力景观类型中常温区占主导地位,年均占有率为70.1%;(2)常温区景观类型变幅最大,31年间累计减少104.65 km^(2);其次是热岛区,31年间累计增加99.5 km^(2);变幅最小的是强绿岛区,31年间累计减少2.24 km^(2);(3)热力景观指数分析表明:31年间咸阳市整体热力景观斑块形状复杂度降低,斑块趋于规则化.究其原因是城市化进程导致城市用地类型占主导地位及大规模城镇化建设过程区域完成所致.(4)咸阳市热岛景观和强热岛景观整体呈现由西南向东北的方向走势.The heat island landscape pattern and dynamic characteristics form 1988 to 2019 in Xianyang were studied by Mono-window Algorithm,based on the thermal band data of the Landsat data.This paper also analysis the changes of heat landscape pattern by landscape indices for 31 years.The results showed that:(1)the normal temperature type was the dominant in the research area from1988 to 2019,with an annual average share of 70.1%.(2)the normal landscape area increased the most in the past 31 years,the cumulative decreased in 104.65 km^(2),and the second was the heat landscape with increasing 99.5 km^(2);the green area was the smallest with the cumulative reduction of 2.24 km^(2)in the past 31 years.(3)thermal landscape index analysis showed that:the whole landscape patch shape complexity was reduced in the past 31 years.It was caused by the urbanization land used types predominate and urbanization process which have done.(4)The overall trend of heat island landscape and strong heat island landscape in Xianyang city is from southwest to northeast.

关 键 词：热岛效应 热力景观 格局演变 西咸一体化 

分 类 号：TU985.12[建筑科学—城市规划与设计]