山东省冬小麦2001-2010年生长季变化分析

Analysis on the Changes of Winter Wheat Growing Season in Shandong Province from 2001 to 2010

从中国近年来农作物生长发育状况资料数据集提取山东省2001-2010年的主要农作物重要物候期,包括生长季开始时间、结束时间和生长季长度,分析了10a间山东省主要农作物物候期的年际变化趋势和空间分异特征。结果表明:(1)山东省冬小麦生长季为2月下旬至6月上旬,平均生长季长度为98d。2001-2010年山东省冬小麦的生长季开始时间显著推迟,结束时间有提前趋势,但提前不显著,生长季有所缩短,10a缩短约5d;(2)不同地区冬小麦物候特征差异较大,分析菏泽、惠民、文登、临沂等4个典型研究区冬小麦的物候年际变化发现,菏泽、惠民、文登等地区生长季长度有缩短趋势,只有临沂地区生长季有延长趋势,且延长变化不显著。

Based on the China＇s recent crop growth and development status of data sets,the vegetation phe-nological metrics（the beginning data,the ending data and length of growing season） and its spatiotemporalvariation from 2000 to 2010 in Shandong Province were analyzed.The vegetation growing season of winterwheat Shandong Province started in late February and ended in the beginning of June,the average lengthof growing season was about 98 days. The beginning time of growing season of Shandong Province was sig-nificantly delayed,while the ending time was expressed the advance trend,but not significant,the length ofgrowing season was shorten,about 5 days every 10 years. Phenological characteristics of different vegetationtypes showed great differences. Heze,Huimin,Wendeng,Linyi of the four typical vegetation phenologicalchanges were analyzed,the length of growing season was shorten the trend of Heze,Huimin and Wendengas a representative of most of the region of Shandong province. Only a small area of Shandong provincesuch as Linyi,growth season was extension of the trend,while the growing season changed not obviously.