WANG Weina,LI Shaoning,LU Shaowei,et al.Study on Water Consumption Characteristics of Typical Economic Forest Tree Species in Beijing[J].Northern Horticulture,2019,43(19):60-66.[doi:10.11937/bfyy.20184304]
北京市典型经济林树种耗水特性研究
- Title:
- Study on Water Consumption Characteristics of Typical Economic Forest Tree Species in Beijing
- 文献标志码:
- A
- 摘要:
- 以北京市典型5种经济林树种核桃（Juglans regia）、山桃（Amygdalus davidiana）、山杏（Armeniaca sibirica）、山楂（Crataegus pinnatifida）和枣（Ziziphus jujuba）为研究对象，采用盆栽称重法，分析了5种经济林盆栽苗木耗水速率、叶水势变化规律及植物耗水速率和叶水势的相关性。结果表明：核桃、山杏耗水速率日变化呈双峰型曲线，山桃、山楂和枣耗水速率呈单峰型曲线。耗水速率月变化均呈单峰曲线，耗水速率在5月和10月低，在7月前后高，排序为山杏（0.034 5 g?cm-2?d-1）>山桃（0.034 3 g?cm-2?d-1）>山楂（0.031 8 g?cm-2?d-1）>枣（0.028 0 g?cm-2?d-1）>核桃（0.027 2 g?cm-2?d-1）。经济林叶水势日变化趋势均是早晚高；叶水势月变化为5月和10月高，7月前后低，排序为核桃（-3.02 MPa）>山楂（-3.13 MPa）>山杏（-3.17 MPa）>枣（-3.22 MPa）>山桃（-3.34 MPa）。不同经济林树种叶水势与耗水速率均呈负相关（R2>0.72）。
- Abstract:
- Based on the typical economic tree species of Beijing，Juglans regia，Amygdalus davidiana，Armeniaca sibirica，Crataegus pinnatifida and Ziziphus jujuba，the potted weighing method was used to analyze the water consumption rate，leaf water potential change law，plant water consumption rate and leaf water potential of five economic forest potted plants were correlated.The results showed that the daily variation of water consumption rate of Juglans regia and Armeniaca sibirica showed a bimodal curve，and the water consumption rate of mountain Amygdalus davidiana,Crataegus pinnatifida and Ziziphus jujuba showed a unimodal curve.The monthly variation of water consumption rate showed a single-peak curve，and its water consumption rate was low in May and October，and was high in July.The order was as follows,Armeniaca sibirica (0.034 5 g?cm-2?d-1)>Amygdalus davidiana (0.034 3 g?cm-2?d-1)>Crataegus pinnatifida (0.031 8 g?cm-2?d-1)>Ziziphus jujuba (0.028 0 g?cm-2?d-1)>Juglans regia (0.027 2 g?cm-2?d-1).The daily trend of economic forest leaf water potential was high in the morning and evening；the leaf water potential monthly change was high in May and October，and low in July，ranking was Juglans regia (-3.02 MPa)>Crataegus pinnatifida (-3.13 MPa)>Armeniaca sibirica (-3.17 MPa)>Ziziphus jujuba (-3.22 MPa)>Amygdalus davidiana (-3.34 MPa).There was a negative correlation between leaf water potential and water consumption rate in different economic forest trees (R2>0.72).
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备注/Memo
第一作者简介：王伟娜（1993-），女，硕士研究生，研究方向为植物生理生态。E-mail：1498277858@qq.com.责任作者：鲁绍伟（1969-），男，博士，研究员，硕士生导师，现主要从事森林生态和水土保持等研究工作。E-mail：371784145@qq.com.基金项目：北京市农林科学院创新能力-储备专项资助项目;北京市农林科学院科技创新能力建设资助项目（KJCX20160301，KJCX 20170601）;科技创新团队资助项目（TWKST 201609）;科技创新服务能力建设-科研基地建设-林果业生态环境功能提升协同创新中心资助项目（PXM2017_014207_000024）。收稿日期：2019-03-22