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中国沙漠 ›› 2006, Vol. 26 ›› Issue (1): 152-155.

• 实验研究 • 上一篇    下一篇

多功能高分子固沙种草剂在民勤沙生植物复壮中的试验研究

张松林1,2, 田 侠1, 赵首彩1, 董庆士1, 张锦春3   

  1. 1.西北师范大学 地理与环境科学学院,甘肃 兰州 730070; 2.兰州大学 资源与环境学院, 甘肃 兰州 730000; 3.甘肃省沙漠研究所, 甘肃 武威 733000
  • 收稿日期:2005-01-20 修回日期:2005-03-10 出版日期:2006-01-20 发布日期:2006-01-20

Recovery Experiment of Psammophytes in Minqin County by Multi-Functional High Polymer Reagent

ZHANG Song-lin1,2, TIAN Xia1, ZHAO Shou-cai1, DONG Qing-shi1, ZHANG Jin-chun3   

  1. 1.Institue of Geography and Environmental Sciences, Northwest Normal University, Lanzhou 7300700, China; 2.School of Resource and Environmental Sciences, Lanzhou University, Lanzhou 730070, China; 3.Gansu Desert Control Institute, Wuwei 733000, Gansu, China
  • Received:2005-01-20 Revised:2005-03-10 Online:2006-01-20 Published:2006-01-20

摘要: 试验选择在甘肃省武威市民勤县绿洲外缘与沙漠交接地带,以退化的人工梭梭林和天然白刺灌丛为受试植物,辅以滴灌措施,应用多功能高分子植物固沙种草剂进行沙生植物复壮试验研究。结果显示,白刺和梭梭施用试剂的抗旱、保水效果都很显著,尤其在白刺上的使用效果更好;滴灌施用试剂时,梭梭单梢干重平均值、最大新梢长平均值、最小新梢长平均值和最大新梢径平均值,滴灌施用试剂时均比滴灌对照、无滴灌对照和无滴灌试剂高得多;白刺灌丛高、径和冠幅增大,其中,滴灌试剂处理相对滴灌对照处理和免灌对照处理冠幅增长率分别为42.4%和174.4%。可见,该试剂不仅有利于保持林下土壤水分、有效提高其抗旱能力,而且还能够促使植物快速生长,对退化植被有很强的恢复能力。

关键词: 多功能高分子固沙种草剂, 沙生植物, 白刺, 梭梭, 复壮试验

Abstract: The study area is located in the adjacent region of the Minqin Oasis in Gansu Province with the Tengger Desert and the Badain Jaran Desert. A multi-functional high polymer reagent was used to recover the degenerative psammophytes by the supplement of drip irrigation. As a result, the 0~230 cm layer average moisture contents under the Nitraria angutorum and the Haloxylon ammodendron were higher than those of the control ones, especially that under the Nitraria tangutorum was the highest. Besides, the average dry weight of the single tip, the average length of the largest new tip, the average length of the smallest new tip, and the average diameter of the biggest new stalk of the Haloxylon ammodendron in the drip irrigation experiment were much higher than those of the control ones, respectively. The main growth changes of the Nitraria angutorum are shown in the height, stalk, and cap in the drip irrigation experiment. It is obvious that this reagent not only kept higher moisture in soil under the psammophytes, but also promoted the growth of plants and recovered the degenerative vegetation cover.

Key words: multi-functional high polymer reagent, psammophytes, Nitraria tangutorum, Haloxylon ammodendron, drip irrigation, recovery experiment

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