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东北半干旱区主要农田防护林树种蒸腾速率研究
引用本文:王宇,陈丽华,杨启红,毕广有,俞冬兴,李树森.东北半干旱区主要农田防护林树种蒸腾速率研究[J].水土保持通报,2008,28(4):48-51.
作者姓名:王宇  陈丽华  杨启红  毕广有  俞冬兴  李树森
作者单位:1. 北京林业大学,水土保持学院,北京,100083
2. 黑龙江省森林与环境科学研究院,黑龙江,齐齐哈尔,161005
基金项目:北京市科委2006年度科技计划重大项目“生态涵养带农业节水技术模式研究”(D0706007040191-07); 黑龙江省林业厅项目“嫩江沙地节水型防护林营建技术研究”(200509)资助
摘    要:以黑龙江省西部半干旱地区主要农田防护林树种为研究对象,采用快速称重法对樟子松、落叶松、小黑杨和银中杨的蒸腾速率进行了研究。结果表明,各树种月蒸腾速率的变化不同,樟子松的蒸腾速率始终最小。樟子松蒸腾速率的月变化差异最小,各防护林树种的蒸腾速率均呈现抛物线变化趋势。农田防护林在多种环境因子的综合作用下,其蒸腾速率受大气温度和太阳总辐射的影响较大,并且蒸腾速率与大气温度、太阳总辐射和土壤水含量均表现出正相关,与相对湿度和风速均表现出负相关。

关 键 词:快速称重  农田防护林  蒸腾速率
收稿时间:4/2/2008 12:00:00 AM
修稿时间:2008/5/22 0:00:00

Transpiration Rate of Main Tree Species for Farmland Shelterbelts in the Semi-arid Region of Northeast China
WANG Yu,CHEN Li-hu,YANG Qi-hong,BI Guang-you,YU Dong-xing and LI Shu-sen.Transpiration Rate of Main Tree Species for Farmland Shelterbelts in the Semi-arid Region of Northeast China[J].Bulletin of Soil and Water Conservation,2008,28(4):48-51.
Authors:WANG Yu  CHEN Li-hu  YANG Qi-hong  BI Guang-you  YU Dong-xing and LI Shu-sen
Institution:College of Soil and Water ConservationBeijing Forestry UniversityBeijing 100083China;College of Soil and Water ConservationBeijing Forestry UniversityBeijing 100083China;College of Soil and Water ConservationBeijing Forestry UniversityBeijing 100083China;Heilongjiang Academy of Forest and Environment SciencesQiqiharHeilongjiang 161005China;Heilongjiang Academy of Forest and Environment SciencesQiqiharHeilongjiang 161005China;Heilongjiang Academy of Forest and Environment SciencesQiqiharHeilongjiang 161005China
Abstract:The transpiration rates of Pinus sylvestris L.var.mongolica Litv., L arix gmelinii , Populussimonii×P.nigra , and Populus alba× P.berolinensis , the main tree species of farmland shelterbelts in the semi-arid region in the wesTheilongjiang Province of China , were studied by using the method of rapid weighting.Results showed that the monthly variations of the transpiration rates were different and the transpiration rate of Pinus sylvestris L.var.mongolica Litv.was the slowest.The monthly variation of the transpiration rate of Pinus sylvestris L.var.mongolica Litv.was the least and the transpiration rates of other structures showed a parabolic trend.The transpiration rate of farmland protection forest was seriously affected by atmospheric temperature and solar radiation in a variety of environmental factors in combination , and the transpiration rate showed the positive correlations with atmospheric temperature , solar radiation , and soil water content , but the negative correlations with relative humidity and wind speed.
Keywords:rapid weighting  farmland shelterbelt  transpiration rate  
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