科尔沁沙地5种植物光合、耐旱及越冬现象研究  

Photosynthetic,Drought-resistant and Overwintering of Five Broad-leaved Plant in Horqin Sandy Land

作　　者：安宇宁[1] 迟琳琳[1] 曹宇[1] 

机构地区：[1]辽宁省固沙造林研究所,辽宁阜新123000

出　　处：《防护林科技》2017年第4期1-3,21,共4页Protection Forest Science and Technology

摘　　要：2013—2014年,在科尔沁沙地南缘的辽宁彰武县章古台镇,对3年生叶底珠(Flueggea suffruticosa)、小叶鼠李(Rhamnus parvifolia)、杠柳(Periploca sepium)、桃叶卫矛(Euonymus maackii)、榆叶梅(Amygdalus triloba)等5种植物的光合速率、耐旱性、越冬反应和第2年分枝状况进行了研究。结果表明:5种植物在晴朗日间光合速率为:叶底珠<榆叶梅、小叶鼠李<杠柳<桃叶卫矛;土壤体积含水率4%以下时各植物普遍出现萎蔫反应,3%以下普遍出现落叶;越冬之后,除叶底珠外,其他4种植物基本未出现枯死现象。Photosynthetic rate,drought tolerance,wintering reaction ＆branching condition in the second year of 3-year-old Flueggea suffruticosa,Rhamnus parvifolius,Periploca sepium,Euonymus maackii ＆Amygdalus triloba were studied in southern margin of Horqin Sandy Land of Zhanggutai Town in Zhangwu County of Liaoning Province from 2013 to2014.Result shows that photosynthetic rate of five kinds of plant in the daytime is as follows： Flueggea suffruticosa ＜ Amygdalus triloba ＆Rhamnus parvifolius＜ Periploca sepium ＜ Euonymus maackii.Each plant generally appears wilting reaction when the soil moisture content under 4% or less;the leaves dropped universally when the soil moisture content under 3%.After overwinter,there is no phenomenon of snag except for Flueggea suffruticosa.

关 键 词：科尔沁沙地 光合速率 干旱胁迫 土壤体积含水率 越冬 

分 类 号：Q945.11[生物学—植物学]