首页>>学术检索

7种经济林树种降温增湿功能研究

标题: 7种经济林树种降温增湿功能研究
英文标题: Study on the Function of Decreasing Temperature and Increasing Humidity of 7 Kinds of Economic Forest Tree species
作者: 李少宁,赵云阁,丁杰,刘斌,陈波,鲁绍伟
英文作者: LI Shaoning,ZHAO Yunge,DING Jie,LIU Bin,CHEN Bo,LU Shaowei,Forestry and Pomology Institute,Beijing Academy of Agricultural and Forestry Science,Beijing Collaborative Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees,College of Forestry,Agricultural University of Hebei
出版时间: 2017-08-29
机构: 北京市农林科学院林业果树研究所,北京林果业生态环境功能提升协同创新中心,河北农业大学林学院
关键词: 经济林,降温,增湿,蒸腾速率
英文关键词: economic forest,decreasing temperature,humidification,transpiration rate
刊名: 环境科学与技术
英文刊名: Environmental Science & Technology
ISSN: 1003-6504
期号: 08
国内刊号: 42-1245/X
基金: 基金项目:北京市农林科学院新学科培育:北京主要造林树种优良品种选育与部分经济林树种生态功能研究(KJCX20150205);; 林木生态功能监测与资源评价创新团队(TWKST 201609);; 科技创新服务能力建设-协同创新中心-林果业生态环境功能提升协同创新中心(2011协同创新中心)(市级)(PXM2016_014207_000038)
主题: 7种经济林树种降温增湿功能研究
页码: 68-73
分类号: S66
出版单位: 环境科学与技术
是否SCI: 1
是否EI: 0
是否核心: 1
摘要: 为探究经济林树种的降温增湿能力,研究应用CI-340手持光合仪,于5-10月对北京市7种常见经济林(苹果、桃、杏、樱桃、梨、枣和核桃)进行光合指标等测定,并计算其日蒸腾总量、日释水量和日吸热量等。结果显示:(1)各经济林树种在不同月份单位叶面积蒸腾速率日变化基本为:从7:00-17:00呈先增加后减小的变化趋势,最大值大部分出现于11:00-13:00左右;(2)各树种的日蒸腾总量为梨(78.26 mol H_2O/(m~2·d))>枣(67.71 mol H_2O/(m~2·d))>杏(64.46 mol H_2O/(m~2·d))>桃(57.81 mol H_2O/(m~2·d))>核桃(49.21 mol H_2O/(m~2·d))>樱桃(47.18 mol H_2O/(m~2·d))>苹果(44.91 mol H_2O/(m~2·d));(3)各经济林树种的降温增湿能力大小与其日蒸腾总量排序相同,且月变化均表现为9、10月较弱,6、7月出现明显升高,日降温度数均值介于0.13~0.23℃之间,日释水量均值介于808.38~1 408.75 g/(m~2·d)之间。
英文摘要: In order to explore the cooling capacity of forest tree species,the study was conducted to determine the photosynthetic indexes of 7 common economic forests(apple-Malusdomestica,peach-Amygdalus persica L.,apricot-Armeniaca vulgaris Lam.,cherry-Prunus pseudocerasus,pear-Pyrus spp,jujube-Ziziphus jujuba Mill. and walnut-Juglansregia) in Beijing from May to October,and calculate the daily transpiration,daily water release and daily heat absorption,and the results showed that the diurnal variation of transpiration rate per unit leaf area of various economic forest species in different months was basically as the change trend of 7:00-17:00 first increased and then decreased,and the biggest value appeared at 11:00-13:00. Daily transpiration of all trees was Pyrus spp(78.26 mol H_2O/(m~2·d))> Ziziphus jujuba Mill.(67.71 mol H_2O/(m~2·d))> Armeniaca vulgaris Lam.(64.46 mol H_2O/(m~2·d))> Amygdalus persica L.(57.81 mol H_2O/(m~2·d))> Juglansregia(49.21 mol H_2O/(m~2·d))> Prunus pseudocerasus(47.18 mol H_2O/(m~2·d))> Malusdomestica(44.91 mol H_2O/(m~2·d)). The economic forest tree species of cooling and humidifying capacity and daily transpiration quantity of the same sort and monthly variation showed September and October is weak,June and July appear significantly increased,temperature drop of mean number between 0.13~0.23 ℃,release water mean between 808.38~1 408.75 g/(m~2·d).