干旱地区农业研究2011，Vol.29Issue(3)：249-253,5.
吉林省春玉米生产潜力估算及其时空变化特征分析
Research on spatial-temporal evolvement characters of agroclimatic resources for spring maize in Jilin Province
摘要
Abstract
Numerical simulation of the agroclimatic resources for spring maize in Jilin Province from 1961 ～ 2008 was conducted to analyse the spatial-temporal evolvement characters of the production potential of photo-temperature and climatic potential productivity. The results showed that: the average production potential of photo-temperature was 25 t/hm2, descending from northwest to southeast, and it was over 25 t/hm2 in the west and middle, while it was less in the east. The production potential of photo-temperature was going up in recent 50 years, and the variation of the production potential of photo-temperature was relatively small between years and decades. The average potential climatic productivity was 14.7 t/hm2, increasing from northwest to southeast, the highest productivity was in east, higher in middle, the lowest in west, and it was going down in recent 50 years, while the its variation was relatively obvious between years and decades. Water is a main factor which restricts spring maize yield in midwest Jinlin, and the potential production of water was computed with the favorable water for spring maize growth, showing a descending trend from northwest to southeast.关键词
春玉米/光温生产力/气候生产力/数值模拟Key words
spring maize/ production potential of photo-temperature/ potential productivity/ numerical simulation分类
农业科技引用本文复制引用
王冬妮,郭春明,晏晓英,王杰,李军伟..吉林省春玉米生产潜力估算及其时空变化特征分析[J].干旱地区农业研究,2011,29(3):249-253,5.基金项目
公益性行业(气象)科研专项"东北地区上壤墒情监测预报及其对主要农作物的影响分析"(GYHY201106026) （气象）
中国气象局气候变化专项"东北粮食生产格局的气候变化影响与适应"(CCSF-09-13) （CCSF-09-13）
