水土保持学报2017，Vol.31Issue(5)：203-207,214,6.DOI:10.13870/j.cnki.stbcxb.2017.05.032
砒砂岩地区3种主要树种边材液流动态特征
Dynamic Variation of Sapwood Flow of Three Main Tree Species in a Soft Sand-rock Area
摘要
Abstract
To understand the water use character of main tree species in soft sand-rock area,three main tree species (Caragana korshinskii Kom 、Hippophae rhamnoides Linn.Pinus tabuliformis) in Geqiugou,Ordos,Inner Mongolia was examined using stem heart balance method to explore sap flow of these three tree species under different weather conditions and the daily change.The results showed:(1) The sap flow rates of the three tree species showed a unimodal curve,and nearly reached the peak at the same time during growing.(2) In the sunny day,the sapflow rate of Hippophae rhamnoides Linn was the highest,about 0.117 72 cm/s,the sap flow rate of Caragana korshinskii Kom and Pinus tabuliformis were similar;the daily average rates of the three species were 0.029 01 cm/s,0.018 15 cm/s,and 0.022 03 cm/s,respectively.(3) In different weather conditions,the sapflow rates of the three species showed sunny day＞cloudy day＞rainy day,and the time when they reached the peak showed sunny day＞cloudy day＞rainy day.The results of the study are to provide theoretical basis for studying the water supply-demand relationship of plants in soft sandrock area and environmental management.关键词
砒砂岩/液流速率/沙棘/油松/柠条Key words
soft sandstone/sap flow rate/Hippophae rhamnoides Linn/Pinus tabuliformis/Caragana korshinskii Kom分类
农业科技引用本文复制引用
尉迟文思,姚云峰,郭月峰,祁伟,韩兆敏,刘龙..砒砂岩地区3种主要树种边材液流动态特征[J].水土保持学报,2017,31(5):203-207,214,6.基金项目
国家自然科学基金项目(31500584) （31500584）
内蒙古自然科学基金项目(2016MS0407) （2016MS0407）
高等学校科学研究项目(NJZZ16055) （NJZZ16055）
内蒙古应用研究与开发计划项目(20110732) （20110732）
内蒙古自治区水利科研专项(NSK-2016-S17) （NSK-2016-S17）
