|本期目录/Table of Contents|

[1]李金博,曾昭文.兴安落叶松生理指标和光合特性对不同光环境的响应[J].江苏农业科学,2021,49(8):149-153.
 Li Jinbo,et al.Responses of physiological indices and photosynthetic characteristics of Larix gmelini to different light environments[J].Jiangsu Agricultural Sciences,2021,49(8):149-153.
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第49卷
期数:
2021年第8期
页码:
149-153
栏目:
园艺与林学
出版日期:
2021-04-20

文章信息/Info

Title:
Responses of physiological indices and photosynthetic characteristics of Larix gmelini to different light environments
作者:
李金博曾昭文
黑龙江省科学院自然与生态研究所,黑龙江哈尔滨 150040
Author(s):
Li Jinboet al
关键词:
兴安落叶松不同光环境叶绿素荧光光系统Ⅱ
Keywords:
-
分类号:
S791.222.01
DOI:
-
文献标志码:
A
摘要:
以北方大兴安岭地区主要植被兴安落叶松为试验材料,用黑色遮阴网的方法研究不同光环境下兴安落叶松叶片生理指标及光合特性的变化,并利用叶绿素荧光技术研究不同遮阴条件对兴安落叶松叶片PSⅡ功能的影响。结果表明,随着遮阴程度的增加,兴安落叶松根系活力呈下降趋势,叶面积增长缓慢,且叶片数量下降幅度明显。兴安落叶松叶片地上生物量、地下生物量和胸径均随遮阴程度的增加呈下降趋势。在光照度为70%时,地上生物量比10%光环境下提高193.6%。随着遮阴程度的增加,兴安落叶松叶片的净光合速率(Pn)呈显著降低趋势,叶片的气孔导度(Gs)、蒸腾速率(Tr)变化趋势与之相似。兴安落叶松叶片的光化学淬灭系数(qP)、PSⅡ最大光化学效率(Fv/Fm)和电子传递速率(ETR)随着遮阴程度的增加均呈降低趋势,在光照度为70%时,叶片的非光化学淬灭(NPQ)较10%光环境时降低了26.65%,遮阴显著降低了兴安落叶松的光合能力。
Abstract:
-

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相似文献/References:

[1]李云,季蒙,孙旭,等.9个种源兴安落叶松一年生实生苗生长规律[J].江苏农业科学,2015,43(06):139.
 Li Yun,et al.Annual growth dynamics of one-year-old Larix gmelinii sowing seedlings from nine provenances[J].Jiangsu Agricultural Sciences,2015,43(8):139.

备注/Memo

备注/Memo:
收稿日期:2020-08-20
基金项目:黑龙江省科学院青年创新基金面上项目(编号:CXMS2019ZR01)。
作者简介:李金博(1990―),男,黑龙江哈尔滨人,硕士,研究实习员,主要从事森林土壤生态学研究。E-mail:505662355@qq.com。
通信作者:曾昭文,研究员,主要从事生态学研究。E-mail:zengzw64@163.com。
更新日期/Last Update: 2021-04-20