中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
利用作物冠层叶-气温差预报根系层土壤含水率的试验研究

文献类型:期刊论文

作者刘婵 ; 范兴科
刊名节水灌溉
出版日期2012
期号01页码:1-3
关键词冠层叶-气温差 :canopy leaf-air temperature difference 土壤容积含水率 soil volumetric water content 根系活动层 root zone
其他题名Experimental Research on Soil Volumetric Water Content Forecast of
中文摘要 根系是作物吸收水分的重要器官,根系的生长和分布对水分利用起着重要的作用,试验以番茄作为研究对象,于2011年的春夏两季对日光温室番茄的根系活动层内土壤容积含水率与冠层叶-气温差之间的关系进行了研究。结果表明:反映日光温室番茄的冠层叶-气温差与土壤含水率关系的最佳测定时间是13:00~15:00,根据该时段内的数据分析发现,冠层叶-气温差与不同深度范围内的土壤容积含水率成负相关,且与20~30cm土层内的土壤容积含水率相关性最为显著,相关系数为-0.808,通过回归分析,得出冠层叶-气温差(ΔT)与20~30cm土层内的土壤容积含水率(SW)两者之间的回归方程为SW=-0.017ΔT+0.155,因此可以确定番茄根系的活动层主要分布在土层的20~30cm范围内
英文摘要Abstract:The root is an important organ through which the crops could absorb water.Its growth and the distribution play an important
 role in water use.This study has taken tomatoes as a research object,and has analyzed the relationship between soil volumetric
water content and canopy leaf-air temperature difference,which is in the root zone of tomatoes in greenhouse during the spring and
summer of 2011.The results show that the best measurement time is 13:00~15:00,which can reflect the relationship between canopy
 leaf-air temperature difference and soil volumetric water content of tomatoes growing in greenhouse.According to the data of this
time,this paper finds that the canopy leaf-air temperature difference is negatively correlated to the difference depths of the soil volumetric
 water content.At the same time,there has been the most significantly linear negative correlation in the range of 20~30cm
(ΔT)depth,and the correlation coefficient is-0.808.By regression analysis,the equation is SW=-0.017ΔT+0.155.Thus,it also
 could be concluded that the active zoon of the tomatoes root is mainly distributed in the range of 20~30cm depth.
语种中文
公开日期2014-09-09
源URL[http://ir.iswc.ac.cn/handle/361005/5452]  
专题水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式
GB/T 7714
刘婵,范兴科. 利用作物冠层叶-气温差预报根系层土壤含水率的试验研究[J]. 节水灌溉,2012(01):1-3.
APA 刘婵,&范兴科.(2012).利用作物冠层叶-气温差预报根系层土壤含水率的试验研究.节水灌溉(01),1-3.
MLA 刘婵,et al."利用作物冠层叶-气温差预报根系层土壤含水率的试验研究".节水灌溉 .01(2012):1-3.

入库方式: OAI收割

来源:水土保持研究所

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