摘要
根据1967-1999年气象资料,依据布达哥夫斯基连乘原理,估算了寿阳县的光合生产潜力、光温生产潜力和光温水生产潜力,其多年平均值分别为19.3、12.9和4.9万kg/hm2。4-9月作物生育期内气候生产潜力总值的逐年变化趋势为:光合、光温生产潜力呈总体减小变化,而光温水生产潜力总体减少趋势不明显;4-9月逐月气候生产潜力等值线图表明,20世纪90年代末光合、光温及光温水生产潜力均有不同程度的降低,1999年后的三种气候生产潜力保持继续减少的趋势。
Based on the meteorological data for the period of 1967 - 1999 in Shouyang County, the photosynthetic, the photo-temperature and the photo-temperature-water potential productivities were estimated, which reached at 19.34 t/ha, 12. 95 t/ha and 4. 90 t/ha respectively. The trend of the potential climate productivity during the growing period, namely from April to September year by year showed that the photosynthetic and the photo-temperature potential reduced generally, but the reduced trend of the photo-temperature-water potential was not significant. As showed at the isoline map, all of the photosynthetic, the photo-temperature and the photo-temperature-water potentials showed a decreased trend at different degree in late 1990s. The potential climate productivity kept continued to decline after 1999.
出处
《中国农业气象》
CSCD
2007年第3期271-274,共4页
Chinese Journal of Agrometeorology
基金
农业部农业结构调整重大技术研究专项"华北粮食主产区农业环境监测评价体系研究
"Challenge Program on Water & Food"Conservation agriculture for the dry-andareasof the Yellow River Basin"
关键词
气候生产潜力
等值线图
北方旱区
寿阳县
Potential climate productivity
Isoline map
Dryland farming： Shouyang County
作者简介
刘勤（1982-），山东郓城人，硕士生，主要从事耕地地力评价和节水农业研究。
通讯作者。E-mail：yancr@cjac．org．cn
