应用生态学报2011，Vol.22Issue(5)：1247-1254,8.
气候变化背景下中国农业气候资源变化V.宁夏农业气候资源变化特征
Changes of China agricultural climate resources under the background of climate change.V.Change characteristics of agricultural climate resources in Ningxia
摘要
Abstract
Based on the 1961-2009 weather data from 21 meteorological stations in Ningxia, this paper analyzed the spatiotemporal variation trend of regional agricultural climate resources in Ningxia. Northwest China. In 1961-2009 . the air temperature in Ningxia increased gradually from south to north. with the mean annual temperature increased by 0.4 ℃ · ( 10 a) -1 . while the annual precipitation in most regions decreased gradually, with a decrement 4. 26 mm · ( 10 a)-1. Both the frost-free period and the duration of crop growth season prolonged. The regions with≥10 ℃ accumulated temperature being ≥3200 ℃ . d extended southwardly, and thereby, the regions adaptive for planting mid and late rice increased. In 2001 -2009 . most regions were adaptive for plating winter wheat. and the whole Ningxia was adaptive for plating spring wheat. In the southern mountain regions, the region with mean temperature in July being ≤20 ℃ decreased gradually, and accordingly, the regions adaptive for planting potato decreased.关键词
宁夏/农业气候资源/气候倾向率/气候变化分类
农业科技引用本文复制引用
袁海燕,张晓煜,徐华军,杨晓光..气候变化背景下中国农业气候资源变化V.宁夏农业气候资源变化特征[J].应用生态学报,2011,22(5):1247-1254,8.基金项目
国家重点基础研究发展计划项目(2010CB951502)、公益性行业科研专项(200903003,GYHY200806021)和国家科技基础性上作专项(2007FY120100)资助. （2010CB951502）
