摘要
利用1982～2006年NOAA/AVHRR-NDVI数据和气象站点观测的降水、温度资料,对我国东北部地区的植被覆盖和气候变化特征及其相互关系进行了诊断分析。结果表明,东北部地区NDVI(降水)呈不明显上升(下降)趋势,温度总体呈显著的升高趋势;全区NDVI与降水的相关不明显,但在降水较少的辽宁和内蒙古地区,降水量是影响植被的重要因子;NDVI与温度呈显著的正相关,尤其在春季;温度较低地区的植被与温度相关更明显,植被覆盖较高(低)地区的植被对温度的响应(影响)明显。
By using NOAA/AVHRR-NDVI data and rainfall,temperature data during 1982-2006,diagnosis analysis was carried out on vegetation coverage,climate variation characteristics and correlation in north-eastern China.The results showed that,NDVI（precipitation） indicating slight increase（decrease） trend,while temperature indicating significant increase trend;NDVI and precipitation have no obvious correlation,while in less precipitation area of Liaonning and Inner Mongolia,precipitation is an important factor influencing vegetation;NDVI and temperature showed significant post correlation,especially in spring;in lower temperature area and higher（lower） vegetation coverage,vegetation and temperature have significant correlation with temperature.
出处
《安徽农业科学》
CAS
2012年第32期15829-15832,共4页
Journal of Anhui Agricultural Sciences
基金
林业公益性行业专项(200804001)
气象公益性行业专项(GYHY201106014-3)
