期刊论文

Characteristics of Water Consumption by Transpiration of Zenia insignis at Seedling Stage

中文

中国农学通报

1000-6850

2009

25

5

116-120

国家林业局‘948’项目“高热值速生能源树种选育及高效利用技术引进”（2006-4-126）； 国家林业局‘948’项目湖南省科技厅重点项目“速生乡土阔叶树种选育关键技术研究”（06FJ3004）；

本校为第一机构

采用盆栽方法,对不同天气和不同土壤水分条件下翅荚木苗木的蒸腾耗水特性进行了研究,结果表明:翅荚木蒸腾耗水速率日变化呈单峰曲线;日耗水速率当年生苗木的大于一年生留床苗的;日最大耗水速率当年生苗木晴天出现在12:00--16:00,阴天出现在12:00--14:00,一年生留床苗晴天出现在10:00--14:00,阴天出现在10:00--12:00;控水条件下,土壤永久萎蔫系数当年生苗木为7.83%,一年生留床苗为5.95%;当土壤含水量低于6.03%时,当年生翅荚木枯死落叶,当土壤含水量为3.32%时,一年生留床苗严重萎蔫、枯黄.

Characteristics of water consumption by transpiration of Zenia insignis at seedling stage were studied by using pot seedling in different weather and water conditions.The results showed that the diurnal variation of water consumption rate by transpiration of Zenia insignis showed single-peak curve. Water consumption rate of the current-year consumption rate of the seedlings current-year seedlings was higher than annual stubble seedlings.The occured at 12：00-16：00 in sunny,but occured at largest water 12：00-14：00 in cloudy.However,the annual...