柄扁桃幼苗的水分生理特征研究  

Hydrological Physiological Characteristics of Amygdalus pedunculata Pall. Seedlings

作　　者：王熠青[1] 王耀廷 赵德旺 李秀峰[4] 张国栋[5] 魏先君[6] 斯琴巴特尔[6] 

机构地区：[1]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [2]内蒙古托克托县双河镇科技综合服务站,内蒙古托克托010200 [3]内蒙古察右后旗林业局,内蒙古白音察干012400 [4]内蒙古霍林河露天煤业股份有限公司,内蒙古霍林郭勒029200 [5]内蒙古大学艺术学院,内蒙古呼和浩特010021 [6]内蒙古师范大学生命科学与技术学院,内蒙古呼和浩特010022

出　　处：《内蒙古林业科技》2010年第4期27-30,共4页Journal of Inner Mongolia Forestry Science and Technology

基　　金：国家农业科技成果转化项目"生物定时水造林新技术应用成果转化"(2006GB2A400042)资助

摘　　要：对乌兰察布市察右后旗人工造林地土壤含水量及柄扁桃幼苗水分生理特征进行研究。结果表明,由于长期干旱,样地土壤含水量降到7.24%以下,柄扁桃自然含水量为68.41%,束缚水与自由水比值为1.01,其自然饱和亏缺为17.94%。持水力测定表明,柄扁桃持水力曲线斜率大。PV曲线分析表明,Ψπ100和Ψπ0值为7.08 MPa。蒸腾速率日进程变化分析表明,柄扁桃的"午休"现象不很明显。The soil water content of afforested land and the hydrological physiological characteristics of Amygdalus pedunculata Pall.have been studied in Chayouhou Qi.The results showed that because of long time drought,the soil water content of sampling plot decreased below 7.24%,the ntural water content of Amygdalus pedunculata Pall.was 68.41%,the ratio of bound water and free water was 1.01,the water shortage under natural saturation was 17.94%.The measurement of water holding capacity showed that the water holding capacity curve slope of Amygdalus pedunculata Pall.was large.The analysis on PV curve showed that the value of Ψπ100 and Ψπ0 were 7.08 Mpa.The analysis on transpiration rate diurnal variation showed that midday depression of Amygdalus pedunculata Pall.wasn＇t obvious.

关 键 词：旱生植物 水分生理特征 柄扁桃 

分 类 号：Q948[生物学—植物学]