城镇化进程中淄博张店区归一化差异植被指数时空变化分析  

Spatial and Temporal Variation Analysis of Normalized Difference Vegetation Index in Zhangdian of Zibo during Urbanization

作　　者：房磊 张忠峰 赵红霞[1] FANG Lei;ZHANG Zhongfeng;ZHAO Hongxia(College of Agronomy and Agricultural Engineering,Liaocheng University,252059,Liaocheng,Shandong,PRC;College of Forestry Engineering,Shandong Agricultural and Engineering University,250100,Jinan,PRC)

机构地区：[1]聊城大学农学与农业工程学院,山东聊城252059 [2]山东农业工程学院林业工程学院,济南250100

出　　处：《江西科学》2023年第1期121-126,147,共7页Jiangxi Science

基　　金：聊城大学博士科研启动基金项目(31805);横向课题(K20LD2201)。

摘　　要：为了探究城镇化进程中淄博市张店区的植被质量变化,基于Landsat系列数据在GEE平台上计算了2000—2021年归一化差异植被指数(NDVI),通过趋势分析法和分级统计分析了张店区整体和建成区NDVI年际变化、不同等级NDVI面积变化和NDVI逐像元变化趋势。结果表明在2000—2021年之间,张店区年均NDVI呈先减少后增加趋势,变化范围为0.34~0.57;在研究时间范围内,面积增加最多的为高NDVI区域,增加了9.16%;减少最多的为中高NDVI区域,面积占比减少了18.6%;经过M-K趋势检验,张店有74.22%的区域NDVI升高,集中于中心5街道和南定镇,有25.64%的区域NDVI降低,集中于张店区城市西扩过程中的新增建城区。对张店区NDVI变化趋势和分布特点进行研究,能够进一步揭示城镇化和城市活动对植被质量的影响,为张店区城市规划和绿地建设提供基础数据,为淄博市全域公园城市建设提供资料参考,促进张店区人居环境质量的提升。To explore the changes in vegetation quality in Zhangdian of Zibo during urbanization, the NDVI from 2000 to 2021 was computed on the GEE platform based on Landsat series data. The annual variation of the NDVI, the area variation of the different NDVI levels, and the trend of the NDVI per pixel in the Zhangdian were analyzed using trend analysis and rank statistics.The results showed that from 2000 to 2021, the average annual NDVI in Zhangdian first decreased and then increased, ranging from 0.34 to 0.57.The proportion of high NDVI areas increased the most over the study time horizon, by 9.16 percent.The largest reductions were in the middle and high NDVI regions, with an area reduction of 18.6 percent.After the M-K trend test, 74.22 percent of regional NDVI increased, concentrated in central 5th Street and Nanding Town, and 25.64 percent of regional NDVI decreased, concentrated in newly built urban areas during the westward expansion of Zhangdian. The study on the variation trend and distribution characteristics of NDVI in Zhangdian can further reveal the impact of urbanization and urban activities on vegetation quality. The results obtained can not only provide basic data for urban planning and green space construction of Zhangdian, but also further provide reference for park city construction in Zibo, and promote the improvement of human settlement environment quality.

关 键 词：归一化差异植被指数 时空变化 趋势分析 

分 类 号：Q948[生物学—植物学]