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当前位置: 首页 > 文章 > 蓄水坑灌下不同灌水对新梢旺长期苹果园SPAC系统水势影响研究 节水灌溉 2016 (3) 6-10
Position: Home > Articles > Influence of Different Irrigation Quantity of Water Storage Pit Irrigation on the Water Potential of the Apple Orchard SPAC System During the New Shoots' Vigorous Growing period Water Saving Irrigation 2016 (3) 6-10

蓄水坑灌下不同灌水对新梢旺长期苹果园SPAC系统水势影响研究

作  者：
桑永青;马娟娟;孙西欢;郭向红;秦聪;李波
单  位：
太原理工大学水利科学与工程学院
关键词：
蓄水坑灌;SPAC系统;水势;苹果园
摘  要：
为了进一步探明蓄水坑灌下不同灌水上下限对新梢旺长期苹果园SPAC系统水势的影响,实验以三段砧木矮化型红富士长富二号为材料,以地面灌溉(D)为对照,分三个灌水下限(T1、T2和T3)进行处理研究。结果表明:蓄水坑灌下的苹果园SPAC系统水势明显高于地面灌;土壤水势日变化变化和清晨水势变化均不明显;茎水势、叶水势的日变化均呈现先减小后增大的特征(清晨与傍晚较高,午间的最小),而清晨水势变化则呈现随着新梢旺长期的进行逐渐升高;大气水势日变化呈现先减小后增大的特征,清晨水势则无明显特征;苹果园SPAC系统叶片到大气的水势梯度远大于土壤到叶片的水势梯度,水势梯度日变化表现为早晚低、中午前后高的明显趋势;田间持水量的60%~90%可作为新梢旺长期的最优灌水上下限。
译  名：
Influence of Different Irrigation Quantity of Water Storage Pit Irrigation on the Water Potential of the Apple Orchard SPAC System During the New Shoots' Vigorous Growing period
作  者：
SANG Yong-qing;MA Juan-juan;SUN Xi-huan;GUO Xiang-hong;QIN Cong;Li Bo;Water Science and Engineering Institute,Taiyuan University of Technology;Shanxi Conservancy Technical College;
关键词：
water storage pit irrigation;;SPAC system;;water potential;;apple orchard
摘  要：
In order to further explore the influence of the different irrigation upper and lower limits of water storage pit irrigation on the water potential of the apple orchard SPAC system during the new shoots' vigorous growing period,this experiment,with root stock dwarf Fuji Changfu type II as material and surface irrigation(D)as comparison,studied the three irrigation lower limits(T1,T2 and T3)treatment.The results indicate:the water potential of the apple orchard SPAC system in water storage pit irrigation is significantly higher than that of surface irrigation;both the daily variation of soil water potential and variation of the water potential in the early morning are not obvious;both the daily variation of stem water potential and that of leaf water potential are characterized by decreasing and then increasing(higher in the early morning and at dusk,the minimum at noon),while the water potential in the early morning gradually increases during the new shoots' vigorous growing period;the daily variation of atmospheric water potential is characterized by decreasing and then increasing while that of the morning water potential shows no significant characteristic;the water potential gradient,of which daily variation clearly tend to be low in the morning and evening and high around noon,from the apple orchard SPAC system leaves to the atmosphere is much larger than that from soil to the leaf;60%to 90% of the field capacity can be the excellent upper and lower irrigation limits during the new shoots' vigorous growing period.

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