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

作　　者：李海燕[1] 曾星雨 何璞 张弘强[1] 崔玲[1] 周博奇 任卓群 罗春雨[1] 曲艺[1] LI Hai-yan;ZENG Xing-yu;HE Pu(Harbin Base of International Center on Space Technologies for Natural and Cultural Heritage Under the Auspices of UNESCO,Institute of Natural Resources and Ecology of Heilongjiang Academy of Sciences,Harbin,Helongjiang 150040;Rural Social Service Center,Datong District Daqing City,Daqing,Helongjiang 163000)

机构地区：[1]黑龙江省科学院自然与生态研究所联合国教科文组织国际自然与文化遗产空间技术中心哈尔滨分中心,黑龙江哈尔滨150040 [2]大庆市大同区农村社会事业服务中心,黑龙江大庆163000 [3]东北农业大学电气与信息学院,黑龙江哈尔滨150030

出　　处：《安徽农业科学》2025年第6期195-200,共6页Journal of Anhui Agricultural Sciences

基　　金：黑龙江省科学院院所能力提升专项(YSTS2025ZR01);国家自然科学基金项目(42371287);黑龙江省省属科研院所科研业务费项目(CZKYF2023-1-C023)。

摘　　要：应用遥感和GIS技术,结合统计和相关分析等方法,基于MODIS NDVI和气象(气温、降水)数据,探讨2000—2020年三江平原植被各季节NDVI变化趋势、空间分布格局及其对气候变化的响应。结果表明:在时间尺度上,近21年三江平原春季、夏季、秋季植被NDVI呈上升趋势,春季升幅最大(0.156/10 a),秋季升幅最小(0.075/10 a)。在空间分布上,春季NDVI较低,约70.10%区域处于低覆盖植被区(NDVI≤0.4),中覆盖植被区(0.4<NDVI<0.6)占29.10%;夏季植被生长较好,NDVI迅速增加,高覆盖植被区(NDVI≥0.6)几乎占三江平原整个区域,占比为97.53%;秋季植被NDVI空间分布与春季相似,但数值与春季相比,低覆盖植被区有所减少,中、高覆盖植被区均有所增加。在相关性分析中,春季94.18%植被NDVI与气温呈正相关,夏季(91.21%)和秋季(63.46%)大部分区域植被NDVI与气温呈负相关,说明春季气温的升高对大多数植被生长主要起促进作用,夏季气温的下降对植被生长主要起促进作用,秋季气温的升高对植被生长主要起抑制作用;夏季(88.90%)和秋季(80.81%)大部分区域植被NDVI与降水量呈正相关,春季82.46%区域与降水量呈负相关,说明夏季和秋季降水量的增多对三江平原植被生长主要具有促进作用,而春季降水量的增多对大多数植被生长具有抑制作用。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 about 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 temperature 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

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 

分 类 号：S162[农业科学—农业气象学]