南京农业大学学报2011，Vol.34Issue(5)：7-12,6.
江淮地区农业气候资源演变特征及作物生产应对措施
Change characteristics of agricultural climatic resources and adaptation measures for crop production in Jianghuai region
摘要
Abstract
Climatic change is expected to strongly affect global food security. The adaptation and mitigation options of crop to climatic change are becoming a new frontier in crop sciences. Jianghuai region plays an important role in Chinese grain security. Assessing responses and adaptation of cropping system in this area is of great importance to long term grain production in China. This paper analyzed the evolution of climatic resources in Jianghuai region,employing daily weather data and crop growing data from more than 32 meteorological stations in combination with mathematical statistical methods. The results showed that climatic resources(e. g. water,thermal resources,and solar radiation)in Jianghuai region have changed pronouncedly over the past 50 years. The annual mean temperature,maximum temperature and minimum temperature increased about 0.28,0.17 and 0.38 ℃ per ten years,respectively,leading to a decrease in the diurnal range of temperature of 0.21 ℃ per ten years. The accumulated temperature above 10 t and mean minimum temperature increased markedly by 92 and 79 ℃ per ten years, respectively. The mean annual precipitation maintained relatively stable, and the annual solar radiation and sunshine duration showed a decreasing trend of 8.1 h and 12.3 MJ·m2 per year,respectively. Seen from the actual response of wheat and rice,the sowing date of wheat was delayed,maturity date was moved up,and the growth duration was shortened by 4 days. The sowing and maturity of rice was ahead of time,and the growth duration did not change. The rice and wheat yield removed of technology factors showed a volatile rise trend,and the historical yield of rice or wheat was in a significantly positive correlation with the lowest temperature,but had no correlation with precipitation. Finally, according to the change characteristics of climatic resources and crop production in Jianghuai region, we proposed some measures to adapt to the future climatic change.关键词
江淮地区/气候资源/气候变化/粮食安全/作物生产/应对措施Key words
Jianghuai region/ climatic resources/ climate change/ food security/ crop production/ adaptation measures分类
农业科技引用本文复制引用
黄爱军,陈长青,类成霞,张卫建,卞新民..江淮地区农业气候资源演变特征及作物生产应对措施[J].南京农业大学学报,2011,34(5):7-12,6.基金项目
国家973计划项目(2009CB118601) （2009CB118601）
国家自然科学基金项目(30771278) （30771278）
中国农业科学院基金项目(082060302-19) （082060302-19）
