摘要
以新疆阿克苏6年生的核桃树为观测对象,采用大田试验方法,利用美国Dynamax公司生产的包裹式茎流仪测定不同生育期内单株核桃树不同时段的蒸腾速率,研究核桃树蒸腾变化规律及其与气象因子的关系。得出了蒸腾速率的日变化规律是晴天条件下,各月呈单峰曲线,阴天条件下,各月呈双峰或多峰曲线;蒸腾速率与太阳辐射和气温Ta具有较好的正相关关系。
The transpirat ion rates of single 6-year-old w alnut t ree at different periods during different growth stages in Aksu of Xinjiang were measured using the packaged sap flow system produced by Dynamax Company of America. The relationship be-tw een the variation law s of transpirat ion rate of walnut trees and met eorological factors w as investigated. The results indicated that the diurnal variation of the t ranspiration rat e show s the single-peak curve in sunny days, and t he bimodal or multi-peak curve in cloudy days. T ranspiration rat e had a good positive correlat ion w ith solar radiation and temperature Ta, but negative correlation wit h humidity RH .
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2015年第4期776-779,共4页
South-to-North Water Transfers and Water Science & Technology
基金
新疆维吾尔自治区重大专项(201130103-1)
国家科技支撑计划项目(2011Bad29B05)
新疆维吾尔自治区水利水电工程重点学科资助项目(XJZDXK-2002-10-05)
新疆水利科技项(2013G03)
关键词
滴灌
核桃树
蒸腾速率
气象因子
drip irrigation
walnut tree
transpiration rate
meteorological factor
