两种小环境下刺槐树干液流变化规律的研究

J4 ›› 2011, Vol. 46 ›› Issue (1): 6-10.

两种小环境下刺槐树干液流变化规律的研究

唐全¹，曹帮华¹*，张玉娟¹，秦永建²，吴丽云³

1. 山东农业大学农业生态与环境重点实验室，山东泰安 271018； 2. 泰安市岱岳区林业局，山东泰安 271018；
3. 临沂市林业科学研究所，山东临沂 276000

收稿日期:2010-05-21 出版日期:2011-12-14 发布日期:2011-03-16
通讯作者: 曹帮华（1964-），男，教授，博士生导师，主要研究方向为树木逆境生理生态.
作者简介:唐全（1985-），男，硕士，主要研究方向为森林培育与植被恢复.Email:dilifei@sina.com
基金资助:
国家自然科学基金资助项目(30950016) ;国家农业成果转化资助项目(02EFN216700794)

Studies on variation of sap flow of Robinia pseudoacacia in two microenvironment

TANG Quan¹, CAO Bang-hua¹, ZHANG Yu-juan¹, QING Yong-jian², WU Li-yun³

1. Key Lab of Agroecology and Environment, Shandong Agricultural University, Taian 271018, Shandong， China;
2. Forestry Bureau of Daiyue District, Taian 271018, Shandong， China;
3. Linyi Forestry Science Research Institute, Linyi 271018, Shandong，China

Received:2010-05-21 Online:2011-12-14 Published:2011-03-16

摘要/Abstract

摘要：

用热扩散式树干径流计（TDP）和环境自动检测系统对黄河三角洲滨海盐碱地刺槐(Robinia pseudoacacia)-绒毛白蜡(Fraxinus velutina)混交林、刺槐纯林中刺槐单株的树干液流速率和环境因子进行了连续观测，结果表明：混交林中的刺槐单株树干液流日变化呈窄峰型曲线，纯林中的呈宽峰型曲线，二者峰值均出现在10:30左右，无明显启动时间，也没有明显的停止界限；混交林中刺槐单株的液流峰值高于纯林；混交林中刺槐单株的日平均液流速率为纯林中的145%。混交林土壤表层（0~60cm）含水量大于纯林，含盐量小于纯林。多元逐步回归分析表明，影响混交林刺槐树干液流速率的主要因子是太阳辐射强度、大气相对湿度，影响纯林刺槐液流速率的因子依次为大气温度、太阳辐射强度。

关键词: 刺槐; 混交林; 树干液流; 热扩散; 滨海盐碱地

Abstract:

Single Robinia pseudoacacia tree sap flow and its environmental factors were respectively measured by means of TDP (Thermal Dissipation Probe) and Portable-Meteorological Station in a 24-year-old pure forest and its mixed forest (Robinia pseudoacacia and Fraxinus velutina) in Coastal Alkali-saline Soil of the Yellow River Delta. The results showed that diurnal variation of sap flow of mixed forest displayed a narrow-peaked curve and that of pure forest displayed a wide-peaked curve, both peaks were occurred at 10:30 or so, and there were no obvious starting and stopping sign of the sap flow even over night; The peak height of mixed forest was higher than pure forest; The daily average sap flow of mixed forest was 145% of pure stands. Water content of mixed forest Soil surface is more than pure stands, and salt content is less than the soil of pure stands. Multiple regression analysis showed that the important factors effected sap flow of mixed forest were solar radiation, air humidity and the important factors affected pure forest were atmospheric temperature, solar radiation.

Key words: Robinia pseudoacacia; mixed stands; sap flow; thermal dissipation probe; coastal saline soil

唐全1，曹帮华1*，张玉娟1，秦永建2，吴丽云3. 两种小环境下刺槐树干液流变化规律的研究[J]. J4, 2011, 46(1): 6-10.

TANG Quan1, CAO Bang-hua1, ZHANG Yu-juan1, QING Yong-jian2, WU Li-yun3. Studies on variation of sap flow of Robinia pseudoacacia in two microenvironment[J]. J4, 2011, 46(1): 6-10.

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