| 水分胁迫下保水剂对廊坊杨苗木生长特征的影响 |
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| 引用本文： | 陈宝玉,王洪君,杨建,黄选瑞.水分胁迫下保水剂对廊坊杨苗木生长特征的影响[J].东北林业大学学报,2009,37(5). |
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| 作者姓名： | 陈宝玉 王洪君 杨建 黄选瑞 |
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| 作者单位： | 1. 中国农业科技东北创新中心,长春,130033
2. 河北农业大学 |
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| 基金项目： | 国家科技支撑项目，国家自然科学基金，河北省林业局资助项目 |
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| 摘 要： | 对廊坊杨(Populus langfangensis W.)进行聚丙烯酰胺型保水剂(大颗粒、小颗粒、粉末)处理和盆栽控水试验,研究水分胁迫下,保水剂处理苗木对其生长特征和土壤水分的影响.结果表明:水分胁迫下,保水剂处理苗木能够显著增加苗木的基径、苗高,促进苗木的根系生长,增加根系数量、生物量和叶面积;显著增加土壤水分,在土壤严重干旱时,土壤中仍有充足的水分供植物生长利用;3种保水剂剂型中,小颗粒保水剂使用效果最好.
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| 关 键 词： | 水分胁迫 廊坊杨 生长特征 土壤水分 保水剂 |
Effects of Super Absorbent Polymers on Growth Characteristics of Populus langfangensis Seedlings under Water Stress |
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| Chen Baoyu,Wang Hongjun,Yang Jian,Huang Xuanrui.Effects of Super Absorbent Polymers on Growth Characteristics of Populus langfangensis Seedlings under Water Stress[J].Journal of Northeast Forestry University,2009,37(5). |
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| Authors: | Chen Baoyu Wang Hongjun Yang Jian Huang Xuanrui |
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| Institution: | Chen Baoyu,Wang Hongjun,Yang Jian(Agricultural Environment , Resource Research Centre,Northeast Agricultural Research Centre of China,Changchun 130033,P.R.China),Huang Xuanrui(Agricultural University of Hebei) |
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| Abstract: | An experiment was conducted to study the growth characteristics and soil water content(SWC)of Populus langfangensis potted seedlings treated with super absorbent polymers(SAP)under water stress.Results showed that the seedlings treated with SAP had an obvious increase in basal diameter,seedling height and number of roots,and SAP increased leaf area and biomass and also accelerated root growth.Soil treated with SAP had enough water to supply seedlings for their growth under prolonged water stress.Among the t... |
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| Keywords: | Water stress Populus langfangensis Growth characteristics Soil water content Super absorbent polymers |
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