保水剂在片麻岩石质山地造林中的应用研究  

Effect of Water-retaining Agent on Forestation in Gneiss Rocky Mountainous Area

作　　者：谭飞理[1] 翟明普[1] 章岳涛[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《西北林学院学报》2009年第6期74-76,共3页Journal of Northwest Forestry University

基　　金：科技部"十一五"国家科技支撑计划课题"华北土石山区植被恢复与重建技术试验示范"(2006BAD03A11-04)

摘　　要：通过保水剂在片麻岩石质山地造林中应用试验,研究了不同用量的保水剂对臭椿造林效果的影响。结果表明：不同用量保水剂处理后,提高了臭椿土壤含水量和苗木成活率,平均土壤含水量和苗木成活率分别比对照提高2.59%~47.84%和28.56%~50.00%;保水剂影响光合速率和蒸腾速率的日变化进程,提高了水分利用效率。综合考虑成本和造林效果等多种因素,每穴30 g的保水剂用量具有较好的效果。Effect of water-retaining agent on forestation of Ailanthus altissima was studied in gneiss rocky mountainous area. The results showed that soil water content and forestation survival rate increased more or less after applying water-retaining agent, and the average value of them were 2.59%-47. 84% and 28.56% -50.00 % higher respectively than the control. Additionally, application of water-retaining agent could improve water utilization rate through impacting on the daily rhythm of photosynthesis rate and transpiration rate. Considering forestation cost and the survival rate, 30 g per plant was an ideal dosage for A. altissirna in gneiss rocky mountainous area.

关 键 词：保水剂 臭椿 造林成活率 水分状况 光合速率 蒸腾速率 

分 类 号：S728.2[农业科学—林木遗传育种]