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| 沙地毛白杨速生丰产林节水灌溉的研究 | |
| 引用本文： | 王文全,李秀江,贾玉彬,张振江,华章保,刘素萍.沙地毛白杨速生丰产林节水灌溉的研究[J].河北农业大学学报,2001,24(1):33-37. |
| 作者姓名： | 王文全 李秀江 贾玉彬 张振江 华章保 刘素萍 |
| 作者单位： | 1. 河北农业大学林学院, 2. 河北省大名县林业局, 3. 河北省邯郸市林业局, 4. 保定市农业局, |
| 基金项目： | 河北省教委“毛白杨速生丰产林节水灌溉栽培模式”科研课题! (91330 8) |
| 摘 要： | 以提高灌溉水利用为核心，以植物生理学和生态学以及树木生长为依据，连续８年对毛白杨速生丰产林节水灌溉的理论与技术进行了较为系统的，结果表明，利用科学的灌溉阈值，抓住关键的灌溉时期，确定有效的灌溉范围和经济的灌溉量，就可以较少的水分投入获取较高的林木生长量，在春夏干旱季节（０５－０６月），以田间持水量的５０％作为阈值实施灌水，具有极显著的近期和后期水分补偿效应，与较高灌溉水平（阈值为７０％）相比，灌溉水利用率提高４６．８０％，灌水量减少２２．８１％，材积生长量增加１３．３０％，经济效益提高３１．２８％。 |
| 关 键 词： | 毛白杨 节水 灌溉 速生丰林 |
| 文章编号： | 1000-1573(2001)01-0033-05 |
| 修稿时间： | 2000年9月10日 |
Study on water saving irrigation in intensive plantation of Populus tomentosa on sandy land |
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| WANG Wen-quan,LI Xiu-jiang,JlA Yu-bin,ZHANG Zhen-jiang,HUA Zhang-bao,LlU Su-ping.Study on water saving irrigation in intensive plantation of Populus tomentosa on sandy land[J].Journal of Agricultural University of Hebei,2001,24(1):33-37. | |
| Authors: | WANG Wen-quan LI Xiu-jiang JlA Yu-bin ZHANG Zhen-jiang HUA Zhang-bao LlU Su-ping |
| Abstract: | Taking the utilizing rate of irrigation water as the core and according to plant physiology and ecology and growth of trees, the theory and technology of water saving irrigation in Populus tomentosa intensive plantation was studied systematically for eight years in succession. The results showed that it could get more growth of trees with less water and achieve water saving irrigation by means of scientific soil moisture threshold and taking the key season and define the effective range and economic quantity for irrigation. During the dry season in spring and summer (May to June), it showed obvious compensate effects in contemporary and later stage irrigation with 50% of field capacity as the soil moisture threshold . Compared with the high level irrigation, the utilizing rate of irrigated water raised by 46.80% and the quantity of water for irrigation decreased by 22.81% while the volume of timber increased by 13.30% and the economic benefit increased by 31.28%. |
| Keywords: | Populus tomentosa water saving irrigation threshold for irrigation season for irrigaton |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |