干旱地区农业研究2012，Vol.30Issue(6)：261-266,6.
气候变暖对天水市作物生长的影响——以冬油菜为例
Impact of climate warming on crop in Tianshui city——An example based on winter rape
摘要
Abstract
Using the temperature change data of Tianshui in 1968—2009 years the temperature variation trend and characteristics of Tianshui in recent years were analyzed. Combined with the growth period data grom the Institute of A-gricultural Sciences of Tianshui in 1980—2010 years, the relation of rapeseed growth period and temperature and its variation trend were analyzed. And then the regression model was set up to reveal rape response to climate warming and to provide a theoretical basis for planting structure adjustment and food security. The results showed that the winter rape rowing and seeding trended to postponed, whereas the emergence of bud, producing shoots, first stage of flowering, middle stage of flowering and maturity trended in advance with the passage of time. Number of days between various growth periods of winter rape trended to shorten and the mature time got earlier by 10.1 d/10a. The growth period of sowing -seeding, producing shoots - first stage of flowering, first stage of flowering - middle stage of flowering trended to prolong, and the growth period of seeding - emergence of bud, emergence of bud - producing shoots and middle stage of flowering - maturity all trended to shorten. 1000-grain weight of rape in 1980—2010 years trended to increase with the equation y = 0.0135χ + 2.5825, R2 = 0.0941. The whole growth period of rape was significantly negatively correlated with the 5, 10, 15 cm and 20 cm average ground temperature.关键词
气候变暖/冬油菜/影响/天水市Key words
climatic warming/ winter rape/ impact/ Tianshui city分类
农业科技引用本文复制引用
赵国良,高强,姚小英,温宏昌,强玉柱,王娟..气候变暖对天水市作物生长的影响——以冬油菜为例[J].干旱地区农业研究,2012,30(6):261-266,6.基金项目
甘肃省自然科学基金项目(1107RJZE260) （1107RJZE260）
天水市软科学项目(天软2010-5) （天软2010-5）
