三江平原生长季植被覆盖时空变化及其对气候变化的响应  

Spatiotemporal Variation of Vegetation Cover During the Growing Season in the Sanjiang Plain and Its Response to Climate Change

作　　者：李海燕[1] 张弘强[1] 何璞 曾星雨 崔玲[1] 周博奇 罗春雨[1] 任卓群 曲艺[1] LI Hai-yan;ZHANG Hong-qiang;HE Pu(Institute of Nature and Ecology,Heilongjiang Academy of Sciences,Harbin,Hei-longjiang 150040;Rural Social Service Center,Datong District of Daqing City,Daqing,Heilongjiang 163000)

机构地区：[1]黑龙江省科学院自然与生态研究所,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5期82-87,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：基于2000—2020年的遥感数据以及气温和降水量数据,采用相关分析等方法,研究三江平原区域及不同植被类型生长季NDVI时空变化及其对气候变化的响应。结果表明:2000—2020年三江平原生长季平均NDVI和各植被类型NDVI均呈上升趋势,森林上升趋势最大(0.0162/a);三江平原全年气温和降水量整体呈上升趋势,生长季气温呈下降趋势、降水量呈上升趋势。三江平原2000、2005、2010、2015和2020年生长季NDVI空间分布格局总体相似,植被覆盖总体呈现改善趋势。生长季植被生长较好,中(0.4<NDVI<0.6)、高(NDVI≥0.6)覆盖植被区域占比较高,占整个区域的98.22%。2000—2020年三江平原生长季大部分区域植被NDVI与气温呈负相关,与降水量呈正相关,说明该地区气温的升高对生长季植被NDVI主要起抑制作用,降水量的增多对生长季植被NDVI主要起促进作用。Based on the remote sensing data from 2000 to 2020,as well as temperature and precipitation data,this paper evaluated the tempo-ral and spatial variation of NDVI in the growing season and its response to climate change in the Sanjiang Plain and different vegetation types by correlation analysis and other methods.The results showed that the average NDVI and NDVI of each vegetation type in the growing season in the Sanjiang Plain from 2000 to 2020 showed an upward trend,and the forest had the largest upward trend(0.0162/a).The annual tempera-ture and precipitation in the Sanjiang Plain showed an upward trend,the temperature in the growing season showed a downward trend and the precipitation showed an upward trend.The spatial distribution pattern of NDVI in the growing season of 2000,2005,2010,2015 and 2020 in the Sanjiang Plain was generally similar,and the vegetation cover showed an overall improvement trend.In the growing season,the vegetation growth was good,and the medium(0.4<NDVI<0.6)and high(NDVI≥0.6)vegetation coverage accounted for 98.22%of the whole area.During the growing season of the Sanjiang Plain from 2000 to 2020,vegetation NDVI was negatively correlated with temperature and positively correlated with precipitation,indicating that the increase of temperature in this region mainly inhibited vegetation NDVI in the growing season,and the increase of precipitation mainly promoted vegetation NDVI in the growing season.

关 键 词：归一化植被指数(NDVI) 相关性分析 时空变化 气候变化 三江平原 

分 类 号：X173[环境科学与工程—环境科学]