干旱区生态环境知识资源中心(Arid): 干热河谷石漠化区顶坛花椒叶片蒸腾速率及其与环境因子的关系

Arid

	干热河谷石漠化区顶坛花椒叶片蒸腾速率及其与环境因子的关系
其他题名	Correlation Between Leaf Transpiration Rate of Zanthoxylum planispinum var.Dingtanensis and Environmental Factors in Dry-hot Valley Rocky Desertification Region
	钟欣平; 喻阳华; 侯堂春
来源期刊	西南农业学报
ISSN	1001-4829
出版年	2021
卷号	34 期号:7 页码:1548-1555
中文摘要	【目的】探明顶坛花椒(Zanthoxylum planispinum var.Dingtanensis)叶片蒸腾速率及与环境因子的关系,为其经营、管理与生态调控提供科学依据。【方法】同步测定花椒叶性状与环境因子,采用通径分析、相关性分析、单因素方差分析和最小显著性差数法分析各环境要素对蒸腾速率的影响。【结果】不同样地顶坛花椒叶片蒸腾速率均为单峰曲线,且林中花椒蒸腾速率最大;蒸腾速率与光照强度、大气温度、土壤温度的变化规律相同,呈先增加后降低趋势,且峰值出现早于光照强度、大气温度,与土壤温度保持一致;土壤湿度为20% ~ 30%时,蒸腾速率与叶厚度呈显著(P <0.05)负相关,土壤湿度为30% ~ 40%时,蒸腾速率与叶片厚度呈显著负相关,与大气温度呈显著正相关,与光照强度呈极显著(P <0.01)正相关;综合效应系数表现为大气温度(3.996)>空气相对湿度(0.564)>光照强度(0.505)>土壤温度(0.424)>叶面积(-0.372)>叶片厚度(-0.482)>土壤湿度(-0.641)。【结论】土壤湿度、光照强度和大气温度是影响顶坛花椒蒸腾速率的主要环境因素。
英文摘要	【Objective】The correlation between leaf transpiration rate of Zanthoxylum planispinum var.Dingtanensis and environmental factors is explored to provide the scientific basis for its operation,management and ecological regulation.【Method】The leaf traits of Zanthoxylum planispinum var.Dingtanensis and environmental factors are measured simultaneously,and the effects of each environmental factor on transpiration rate are analyzed by using path analysis,correlation analysis,one-way ANOVA and least significance difference analysis methods.【Result】The leaf transpiration rate of Zanthoxylum planispinum var.Dingtanensis in different sample plots was single-peak curve,and the transpiration rate in middle of the forest was the highest.The variation rules of transpiration rate was the same as light intensity,atmospheric temperature and soil temperature,which showed a first increasing and then decreasing trend.The peak of transpiration rate appeared earlier than that of light intensity and atmospheric temperature,which was consistent with soil temperature.When soil moisture was 20%-30%,transpiration rate is negatively and significantly related with leaf thickness(P <0.05).When soil moisture was 30%-40%,transpiration rate was negatively and significantly related with leaf thickness,positively and significantly related with atmospheric temperature,and positively and very significantly related with light intensity(P <0.01).The comprehensive effect coefficient followed atmospheric temperature(3.996) >air relative humidity(0.564) >light intensity(0.505) >soil temperature(0.424) >leaf area(-0.372) >leaf thickness(-0.482) >soil moisture (-0.641).【Conclusion】Soil moisture,light intensity and atmospheric temperature are the main environmental factors affecting transpiration rate of Zanthoxylum planispinum var.Dingtanensis.
中文关键词	顶坛花椒 ; 蒸腾速率 ; 叶性状 ; 环境因子 ; 干热河谷石漠化区
英文关键词	Zanthoxylum planispinum var.Dingtanensis Transpiration rate Leaf traits Environmental factors Dry-hot valley rocky desertification region
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7034961
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378002
作者单位	钟欣平, 贵州师范大学地理与环境科学学院, 贵阳, 贵州 550025, 中国.; 侯堂春, 贵州师范大学地理与环境科学学院, 贵阳, 贵州 550025, 中国.; 喻阳华, 贵州师范大学喀斯特研究院, 国家喀斯特石漠化防治工程技术研究中心, 贵阳, 贵州 550001, 中国.
推荐引用方式 GB/T 7714	钟欣平,喻阳华,侯堂春. 干热河谷石漠化区顶坛花椒叶片蒸腾速率及其与环境因子的关系[J],2021,34(7):1548-1555.
APA	钟欣平,喻阳华,&侯堂春.(2021).干热河谷石漠化区顶坛花椒叶片蒸腾速率及其与环境因子的关系.西南农业学报,34(7),1548-1555.
MLA	钟欣平,et al."干热河谷石漠化区顶坛花椒叶片蒸腾速率及其与环境因子的关系".西南农业学报 34.7(2021):1548-1555.