%0 Journal Article
%T Changing trend of precipitation and its effects on crop productivity in the piedment of Taihang Mountain<br>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
%A SUN Hong-Yong
%A LIU Chang-Ming
%A WANG Zhen-Hu
%A ZHANG Xi-Ying
%A DONG Bo-Fei
%A <br>孙宏勇
%A 刘昌明
%A 王振华
%A 张喜英
%A 董博飞
%J 中国生态农业学报
%D 2007
%I 
%X 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.
%K Rainfall trend
%K Crop productivity
%K Piedment of Taihang Mountain<br>降水变化趋势
%K 作物生产
%K 太行山山前平原
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=ADBF2B80E5C13F36CD892B14BD5B84DE&yid=A732AF04DDA03BB3&vid=23CCDDCD68FFCC2F&iid=B31275AF3241DB2D&sid=13553B2D12F347E8&eid=659D3B06EBF534A7&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=4&reference_num=12