QIANG Xiao-man,CAI Huan-jie,ZHOU Xin-guo,et al.Experimental Study on Variation of Canopy-air Temperature Difference and Transpiration Rate of Alfalfa[J].Research of Soil and Water Conservation,2009,16(03):212-215.
紫花苜蓿冠气温差与蒸腾速率变化规律的试验研究
- Title:
- Experimental Study on Variation of Canopy-air Temperature Difference and Transpiration Rate of Alfalfa
- 分类号:
- S161.4;S542.4
- 摘要:
- 本文主要研究不同水分处理条件下紫花苜蓿冠气温差和蒸腾速率的变化规律。结果表明，全生育期内，冠气温差和蒸腾速率变化规律基本一致，各典型日两者日变化趋势基本呈现“M”型。当灌水下限较高时，冠气温差基本呈负值且日变化和蒸腾速率较一致；当灌水下限较低时，冠气温差基本呈正值，蒸腾速率较小且日变化幅度较平缓。冠气温差较小时，随冠气温差增大蒸腾速率呈上升趋势，而当冠气温差大于0℃以后，随冠气温差增大蒸腾速率不再增加，甚至出现一定的下降趋势。
- Abstract:
- This paper mainly studied the variation of canopy-air temperature difference and transpiration rate of alfalfa under different water conditions. The results showed that the change law is basically identical of canopy-air temperature difference and transpiration rate in the whole growth period, and there are ‘M’ model in the typical day for the shape of the diurnal variation curve. The canopy-air temperature difference is negative and that diurnal variation curve is basically identical with transpiration rate’s under full irrigation, while the canopy-air temperature difference is positive, the transpiration rate is lower and the variation is smoother with larger deficit. Transpiration rate increases with the increase of canopy-air temperature difference when it is smaller and the transpiration rate decreases when canopy-air temperature difference is greater than 0℃.
参考文献/References:
[1] 程旺大, 姚海根, 赵国平, 等.冠层温度在作物水分状况探测中的应用[J].中国农学通报, 2000, 16(5):42-44.
[2] 高鹭, 陈素英, 胡春胜.喷灌条件下冬小麦冠层温度的试验研究[J].干旱地区农业研究, 2005, 23(2):1-5.
[3] 莫兴国, 刘苏峡, 林忠辉.华北平原玉米田能量平衡、水分利用效率和表面阻力分析[J].应用生态学报, 2002, 13(5):551-554.
[4] Jackson R D, Idso S B, Reginato R J, et al. Crop temperature reveals stress[J].Crop Soil, 1977, 29:10-13.
[5] 康绍忠, 刘晓明, 熊运章.土壤-植物-大气连续体水分传输理论及其应用[M].北京:水利电力出版社, 1994.
[6] 蔡焕杰, 张振华, 柴红敏.冠层温度定量诊断覆膜作物水分状况试验研究[J].灌溉排水, 2001, 20(1):1-4.
[7] 彭世彰, 丁加丽, 徐俊增, 等.节水灌溉条件下水稻叶气温差变化规律与水分亏缺诊断试验研究[J].水利学报, 2006, 37(12):1503-1508.
相似文献/References:
[1]祝顺波,许文年,刘刚,等.坡度对紫花苜蓿和狗牙根光合生理特性的影响[J].水土保持研究,2012,19(02):218.
ZHU Shun-bo,XU Wen-nian,LIU Gang,et al.Effect of Slope Gradient on Physiological Characteristic of Mediccago sativa and Cynodon dactylon[J].Research of Soil and Water Conservation,2012,19(03):218.
[2]万素梅,胡守林,黄庆辉,等.不同苜蓿品种头茬草土壤水分动态分析[J].水土保持研究,2004,11(02):138.
WAN Su-mei,HU Shou-lin,HUANG Qing-hui,et al.Studies on Dynamic Change of Soil Water to Different Alfalfa Varities in the First Harvest[J].Research of Soil and Water Conservation,2004,11(03):138.
[3]胡守林,顾明德,王汉全,等.不同紫花苜蓿品种营养价值分析[J].水土保持研究,2005,12(04):217.
HU Shou-lin,GU Ming-de,WANG Han-quan,et al.Analysis on Nutrition Value of Different Alfalfa Cultivars[J].Research of Soil and Water Conservation,2005,12(03):217.
[4]王晓凌,陈明灿,李凤民,等.黄土高原土壤干层水分恢复与作物产量响应[J].水土保持研究,2007,14(03):1.
WANG Xiao-ling,CHEN Ming-can,LI Feng-min,et al.Water Restoration of Dry Soil Layers in the Loess Plateau and Crop Yield Response[J].Research of Soil and Water Conservation,2007,14(03):1.
[5]蔡进军,张源润,潘占兵,等.宁夏黄土丘陵区苜蓿土壤水分的时空变异特征[J].水土保持研究,2016,23(01):75.
CAI Jinjun,ZHANG Yuanrun,PAN Zhanbing,et al.The Characteristics of Spatiotemporal Variability of Soil Water of Alfalfa Fields in Hilly and Gully Loess Regions of Ningxia[J].Research of Soil and Water Conservation,2016,23(03):75.
[6]霍海丽,王琦,张恩和,等.灌溉和施磷对紫花苜蓿干草产量及营养成分的影响[J].水土保持研究,2014,21(01):117.
HUO Hai-li,WANG Qi,ZHANG En-he,et al.Effects of Irrigation and Phosphorus Supply Levels on Hay Yield and Quality of Alfalfa[J].Research of Soil and Water Conservation,2014,21(03):117.
[7]赵莉.氮添加对紫花苜蓿根区土壤养分及土壤微生物量的影响[J].水土保持研究,2014,21(06):35.
ZHAO Li.Effects of Nitrogen Addition on the Soil Nutrient and Microbial Biomass in Root Zone of Medicagosativa[J].Research of Soil and Water Conservation,2014,21(03):35.
备注/Memo
收稿日期:2008-10-26。
基金项目:教育部高校青年教师奖
作者简介:强小嫚（1983- ），女，陕西西安人，硕士，主要从事节水灌溉理论与新技术研究。E-mail：qiangxiaoman@126.com
通讯作者:蔡焕杰（1962- ），男，河北藁城人，教授，主要从事农业节水和水资源高效利用方面的研究。E-mail：caihj@nwsuaf.edu.cn