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| 太行山前平原近40年降水的变化趋势及其对作物生产的影响 | |
| 引用本文： | 孙宏勇,刘昌明,王振华,张喜英,董博飞. 太行山前平原近40年降水的变化趋势及其对作物生产的影响[J]. 中国生态农业学报, 2007, 15(6): 18-21 |
| 作者姓名： | 孙宏勇 刘昌明 王振华 张喜英 董博飞 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所陆地水循环与地表过程重点实验室,北京,100101;中国科学院遗传与发育生物学研究所农业资源研究中心,石家庄,050021;中国科学院研究生院,北京,100049 2. 中国科学院地理科学与资源研究所陆地水循环与地表过程重点实验室,北京,100101;中国科学院遗传与发育生物学研究所农业资源研究中心,石家庄,050021 3. 中国科学院遗传与发育生物学研究所农业资源研究中心,石家庄,050021;中国科学院研究生院,北京,100049 4. 中国科学院遗传与发育生物学研究所农业资源研究中心,石家庄,050021 5. 河北省农业厅,石家庄,050021 |
| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
| 摘 要： | 降水是作物生产的主要限制因素,在干旱半干旱地区尤为重要。通过对太行山山前平原近46年降水量资料分析表明,太行山山前平原降水量在以每年5.1mm速度下降,其中夏玉米季下降比较严重。而冬小麦季的灌溉需水量是夏玉米季的2倍。田间试验结果表明,旱作条件下作物产量与降水量关系密切,而非充分灌溉条件下作物产量的变异性不大,今后应提倡合理灌溉。 |
| 关 键 词： | 降水变化趋势 作物生产 太行山山前平原 |
| 收稿时间： | 2006-04-05 |
| 修稿时间： | 2006-06-30 |
Changing trend of precipitation and its effects on crop productivity in the piedment of Taihang Mountain |
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| SUN Hong-Yong,LIU Chang-Ming,WANG Zhen-Hu,ZHANG Xi-Ying and DONG Bo-Fei. Changing trend of precipitation and its effects on crop productivity in the piedment of Taihang Mountain[J]. Chinese Journal of Eco-Agriculture, 2007, 15(6): 18-21 | |
| Authors: | SUN Hong-Yong LIU Chang-Ming WANG Zhen-Hu ZHANG Xi-Ying DONG Bo-Fei |
| Affiliation: | 1.Key Lab of Water Cycle and Related Land Surface Processes;Institute of Geographical Sciences and Natural Resources Research;Chinese Academy of Sciences;Beijing 100101;China;2.Center for Agricultural Resources Research;Institute of Genetics and Developmental Biology;Chinese Academy of Sciences;Shijiazhuang 050021;China;3.Graduate University of Chinese Academy of Sciences;Beijing 100049;China;4.Hebei Agricultural Bureau;Shijiazhuang 050021;China |
| Abstract: | Rainfall data from 1960 to 2005 was collected and analyzed to find the change trend and to estimate the crop water requirement. Field experiments were conducted at Luancheng Agro-ecology Experimental Station from 1996 to 2005 to calculate the soil water consumption.The results present 5.1mm/a rainfall decrease during last 46 years,especially in the summer maize growing periods.The water requirement of winter wheat is 2 times of that of summer maize.The field experiment shows that the crop yield is significantly related with rainfall in rain-fed area,and the crop yield does not varies obviously under water-saving irrigation.The rational irrigation should be taken in the future. |
| Keywords: | Rainfall trend Crop productivity Piedment of Taihang Mountain |
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