中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 临安毛竹快速生长期耗水特性及其影响因子 西部林业科学 2015 (3) 73-77+84
Position: Home > Articles > The Water Consumption Characteristics of Fast Growing Phyllostachys edulis and Its Impact Factors in Lin'an Journal of West China Forestry Science 2015 (3) 73-77+84

临安毛竹快速生长期耗水特性及其影响因子

作  者：
蔡先锋;李洪吉;袁佳丽;曾莹莹;温国胜
单  位：
浙江农林大学
关键词：
快速生长;水分利用效率;蒸腾速率;影响因子;竹龄
摘  要：
林木耗水特性是森林生态学领域主要的研究内容之一。本项研究是利用Li-6400光合测定仪测定不同年龄(Ⅰ度竹、Ⅱ度竹、Ⅲ度竹)的毛竹在其快速生长期(3-5月)的净光合速率(Pn)、蒸腾速率(Tr)及其影响因子(光合有效辐射、大气温度、大气相对湿度、大气CO2浓度、胞间CO2、气孔导度),对其水分利用动态及其相关影响因子进行了研究。结果表明,(1)毛竹水分利用效率(WUE)在快速生长中期最高,前期其次,后期最小;Tr在快速生长中期最小,前期其次,后期最大。(2)在相同生长期内,WUEⅡ度竹最大,Ⅰ度竹其次,Ⅲ度竹最差;而Tr随着竹龄增加逐渐减小。(3)水分利用效率影响因子影响程度由大到小为胞间CO2浓度、光强、大气湿度、气孔导度、大气温度、大气CO2浓度;蒸腾速率影响因子影响程度由大到小为气孔导度、光强、大气CO2浓度、胞间CO2浓度、大气温度、相对湿度。研究结果将对毛竹的固碳机制和制定科学合理的管理措施提供理论依据。
译  名：
The Water Consumption Characteristics of Fast Growing Phyllostachys edulis and Its Impact Factors in Lin'an
作  者：
CAI Xian-feng;LI Hong-ji;YUAN Jia-li;ZENG Ying-ying;WEN Guo-sheng;School of Forestry and Biotechnology,Zhejiang A & F University;State Key Laboratory of Subtropical Forest Culture Cultivation Base,Zhejiang A & F University;
关键词：
fast growth;;water use efficiency;;transpiration rate(Tr);;impact factor;;bamboo age
摘  要：
The characteristics of forest water consumption is one of the main research areas of forest ecology. This article utilizes the LI-6400 XT Portable Photosynthesis System to measure net photosynthetic rate( Pn) transpiration rate( Tr) and impact factor( photosynthetically active radiation,air temperature,air humidity,atmospheric CO2 concentration,intercellular CO2,and stomatal conductance) of bamboo of different ages in the rapid growth period( I degree,II degree,III degree) and their impact on water use dynamics. The results showed that,( 1) Phyllostachys edulis water use efficiency is highest during the mid( II) rapid growth period,followed by the early( I)and late( II) rapid growth periods. In contrast,the transpiration rate was lowest in the mid( II) rapid growth period,higher in the early( I) growth period,and highest in the late( III) growth period.( 2) In the same growth period degree,WUE was highest in the mid( II) growth period,followed by the early( I) growth period,with the lowest concentration in the late( III) growth period.( 3) Factors influencing water efficiency are,in order of importance: intercellular CO2 concentration,light intensity,atmospheric humidity,stomatal conductance,air temperature,and atmospheric CO2 concentration. Factors influencing the transpiration rate are,in order of importance:stomata conductance,light intensity,atmospheric CO2 concentration,CO2concentration intercellular,air temperature,and relative humidity. The results of this paper provide a theoretical basis for studying the bamboo carbon sequestration mechanism and for scientific management of bamboo.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46