安徽农业科学2025，Vol.53Issue(6)：195-200,6.DOI:10.3969/j.issn.0517-6611.2025.06.045
三江平原不同季节植被覆盖变化及其对气候变化的响应
Changes of Vegetation Cover in Different Seasons and Their Response to Climate Change in the Sanjiang Plain
摘要
Abstract
Using remote sensing and GIS technology,combined with statistical and correlation analysis methods,based on MODIS NDVI and meteorological(temperature,precipitation)data,this study explored the seasonal NDVI variation trend,spatial distribution pattern and response to climate change of vegetation in the Sanjiang Plain from 2000 to 2020.The results showed that on a time scale,the NDVI of vegetation in the Sanjiang Plain had shown an upward trend in spring,summer,and autumn over the past 21 years,with the largest increase in spring(0.156/10 a)and the smallest increase in autumn(0.075/10 a).In terms of spatial distribution,the NDVI in spring was relatively low,with a-bout 70.10%of the area being in low coverage vegetation areas(NDVI≤0.4),and 29.10%being in medium coverage vegetation areas(0.4＜NDVI＜0.6).In summer,the vegetation grew well,and the NDVI increased rapidly,the high coverage vegetation area(NDVI≥0.6)accounted for almost the entire area of the Sanjiang Plain,accounting for 97.53%.In autumn,the spatial distribution of vegetation NDVI was similar to that in spring,but the values had decreased in low coverage vegetation areas and increased in medium and high coverage vegetation areas compared to spring.In the correlation analysis,94.18%of vegetation NDVI was positively correlated with temperature in spring,and negatively correlated with vegetation NDVI in most areas in summer(91.21%)and autumn(63.46%),indicating that the increase of temperature in spring mainly promoted the growth of most vegetation,the decrease of temperature in summer mainly promoted vegetation growth,and the increase of tempera-ture in autumn mainly inhibited vegetation growth.In summer(88.90%)and autumn(80.81%),vegetation NDVI was positively correlated with precipitation,and in spring,82.46%of areas were negatively correlated with precipitation,indicating that the increase of precipitation in summer and autumn mainly promoted the growth of vegetation in the Sanjiang Plain,while the increase of precipitation in spring inhibited the growth of most vegetation.关键词
归一化植被指数(NDVI)/植被覆盖/季节变化/气候变化/三江平原Key words
Normalized difference vegetation index(NDVI)/Vegetation cover/Seasonal change/Climatic change/Sanjiang Plain分类
农业科技引用本文复制引用
李海燕,曾星雨,何璞,张弘强,崔玲,周博奇,任卓群,罗春雨,曲艺..三江平原不同季节植被覆盖变化及其对气候变化的响应[J].安徽农业科学,2025,53(6):195-200,6.基金项目
黑龙江省科学院院所能力提升专项(YSTS2025ZR01) （YSTS2025ZR01）
国家自然科学基金项目(42371287) （42371287）
黑龙江省省属科研院所科研业务费项目(CZKYF2023-1-C023). （CZKYF2023-1-C023）
