基于趋势分析法的输电线路施工区植被动态变化分析  

Analysis on Dynamic Changes of Vegetation in Transmission Line Construction Area Based on Trend Analysis Method

作　　者：石剑波 刘平 占海歌 SHI Jian-bo;LIU Ping;ZHAN Hai-ge(State Grid Hubei Electric Power Research Institute,Wuhan 430075,China;State Grid Hubei Electric Power Co.,Ltd,Wuhan 430075,China;Hubei Fangyuan Dongli Electric Power Science&Research Limited Company,Wuhan 430060,China)

机构地区：[1]国网湖北省电力有限公司电力科学研究院,武汉430075 [2]国网湖北省电力有限公司,武汉430075 [3]湖北方源东力电力科学研究院有限公司,武汉430060

出　　处：《四川环境》2024年第4期76-83,共8页Sichuan Environment

摘　　要：近年来,大量输变电线路工程的建设投入对生态环境产生了潜在威胁,了解相关建设施工对当地的生态环境的扰动至关重要。采用趋势分析和变异系数法等研究方法,基于MODIS NDVI和土地利用等多源遥感数据,分析了2008—2022年间1000 kV特高压交流输变电工程(南昌段)施工的建设前后对区域植被生长环境以及土地利用变化的影响。研究结果发现,输变电路10 km范围的植被NDVI呈略微下降的趋势,由2008年的0.745下降至2022年的0.724;研究区土地利用转化特征主要表现为耕地向其他地类流转,其主要影响集中在施工期。总体上,输电线路工程的建设对研究区内生态环境影响不明显。研究可为该区同类项目输变电工程以及生态环境保护提供一定的理论依据和数据支撑。Recently,the extensive investment in the construction of power transmission lines has posed a potential threat to the local ecological environment.Understanding the ecological disturbance caused by related construction projects is crucial.In this paper,the trend analysis method,the variation coefficient method and other methods were used to analyze the impacts of construction of the 1000 kV UHV AC power transmission and transformation project(Nanchang) on the environment for the growth of regional vegetation and land use change before and after construction for the year 2008 to 2022 based on MODIS NDVI and land use of multi-source remote sensing data.The results indicated a slight decline in NDVI within 10 km of the transmission lines,decreasing from 0.745 in 2008 to 0.724 in 2022.Land use transformation in the study area was characterized by the conversion of arable land to other land classes,with the main impact during the construction period.Overall,the construction of the power transmission lines has caused relatively minor disturbances to the ecological environment in the study area.This research provides a theoretical basis and data support for similar projects in the region,specifically for power transmission projects and ecological environment protection.

关 键 词：输变电工程 NDVI LULC 趋势分析 时空变化 

分 类 号：TM7[电气工程—电力系统及自动化] X171.4[环境科学与工程—环境科学]