植物学报2018，Vol.53Issue(1)：82-93,12.DOI:10.11983/CBB17010
辽宁省植被生长季NDVI对气候因子的响应
Correlation Analysis of Normalized Difference Vegetation Index (NDVI) and Climatic Factors in the Vegetative Growing Season in Liaoning Province
摘要
Abstract
Daily data were obtained from 37 meteorological stations in Liaoning province and 5 meteorological stations in an adjacent area,combined with MODIS NDVI data,during 2000-2010.Vegetation growth response to climate change was analyzed by trend,correlation and spatial analyses to investigate the leading influence of different climate factors on vegetation growth.During the study period,the vegetation of Liaoning province was the most vigorous in July and August.NDVI was significantly increased in the vegetative season and remained between 0.73 and 0.74 after 2007.NDVI and temperature were negatively correlated,especially from June to August;NDVI and precipitation and sunshine hours mainly showed a positive correlation.Vegetation growth was most sensitive to changes of temperature,and the response to sunshine hours was the slowest.The main influencing climatic factors were temperature and sunshine hours in May in the eastern part of Liaoning province but changed to precipitation in the western region.During June to August,the main climatic factors were precipitation and sunshine hours but in September,changed to temperature and sunshine hours.The lag time of temperature and sunshine hours to vegetation was extended from the northeast to southwest Liaoning province,and that for precipitation was opposite.关键词
NDVI/气候因子/响应分析/滞后期Key words
NDVI/climatic factors/response analysis/lag period引用本文复制引用
曹永强,张亮亮,袁立婷..辽宁省植被生长季NDVI对气候因子的响应[J].植物学报,2018,53(1):82-93,12.基金项目
国家自然科学基金(No.51579126,No.51779114)和水沙科学与水利水电工程国家重点实验室2015年对外开放基金(No.sklhse-2016-A-02) （No.51579126,No.51779114）
