| 小胡杨对滨海苏打盐渍土改良效果研究 |
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| 引用本文： | 魏忠平,范俊岗,潘文利,高英旭,马冬菁.小胡杨对滨海苏打盐渍土改良效果研究[J].防护林科技,2012(3):14-16. |
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| 作者姓名： | 魏忠平 范俊岗 潘文利 高英旭 马冬菁 |
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| 作者单位： | 辽宁省林业科学研究院,辽宁沈阳,110032 |
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| 基金项目： | 国家“十一五”科技支撑计划专题，国家“十一五”科技支撑计划项目专题，国家林业局“948”项目 |
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| 摘 要： | 滨海苏打盐渍土修筑台田后种植小胡杨可以成活,18年后小胡杨林分基本郁闭。以未种植树木的台田作为对照(CK),对小胡杨林地内植被演替规律、土壤水分物理性质进行研究。结果表明,小胡杨成林后,林地内植被向良性方向发展,群落生态型由中度耐盐群落演替成轻度耐盐群落,群落高度也由0.2～0.6 m增加到0.5～0.8m,盖度则达到80%～90%,土壤也由苏打盐渍土转变成轻盐碱土;小胡杨可显著降低土壤容重,改善土壤孔隙状况,增加土壤持水性能,使土壤水分物理性质得到显著改良,其中,对0～10 cm土层的改良效果要好于10～30 cm土层。
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| 关 键 词： | 小胡杨 苏打盐渍土 植被演替 土壤水分物理性质 |
Amelioration Effects of Populus simonii×P.euphratica on Coastal Saline-Sodic Soils |
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| WEI Zhong-ping,FAN Jun-gang,PAN Wen-li,GAO Ying-xu,MA Dong-jing.Amelioration Effects of Populus simonii×P.euphratica on Coastal Saline-Sodic Soils[J].Protection Forest Science and Technology,2012(3):14-16. |
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| Authors: | WEI Zhong-ping FAN Jun-gang PAN Wen-li GAO Ying-xu MA Dong-jing |
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| Institution: | (Liaoning Academy of Forestry Sciences,Shenyang 110032,China) |
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| Abstract: | Populus simonii×P.euphratica could survive on the raised fields established on coastal saline-sodic soils.The forests were almost closed in 18 years.Non-forest raised fields were regarded as control（CK）,vegetation succession law soil hydro-physical properties of P.simonii×P.euphratica were studied.Result shows that： vegetation in the forests developed well when P.simonii×P.euphratica stands were established;the ecotype of the community were turned into light salt-tolerant from moderate salt-tolerant,and the average height of community increased to 0.5-0.8m from 0.2-0.6m and the coverage reached 80%-90%;the soils were changed into light saline-alkali from saline-sodic.The soil bulk density was significantly reduced and soil porosity and water-holding properties were increased by P.simonii×P.euphratica,and the soil hydro-physical properties were significantly improved.Among them,the ameliorated effects in 0-10 cm layer of soil were better than that in 10-30 cm layer. |
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| Keywords: | Populus simonii×P euphratica saline-sodic soil vegetation succession soil hydro-physical property |
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