| 不同隔盐材料对滨海盐渍土水盐动态和树木生长的影响 |
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| 引用本文： | 王琳琳,李素艳,孙向阳,张涛,付颖.不同隔盐材料对滨海盐渍土水盐动态和树木生长的影响[J].水土保持通报,2015,35(4):141-147,151. |
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| 作者姓名： | 王琳琳 李素艳 孙向阳 张涛 付颖 |
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| 作者单位： | 北京林业大学林学院, 北京 100083;北京农学院研究生处, 北京 102206;北京林业大学林学院, 北京 100083;北京林业大学林学院, 北京 100083;北京林业大学林学院, 北京 100083;北京林业大学林学院, 北京 100083 |
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| 基金项目： | 林业公益性行业科研专项"林业废弃物基质化研制技术与应用"(201504205); 国家"十一五"科技支撑计划项目(2009BADB2B0504) |
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| 摘 要： | 目的]揭示不同隔盐材料对滨海盐渍土水盐动态和树木生长的影响,为滨海地区盐渍土改良和沿海防护林营造等林业工程提供理论依据。方法]采用单因素方差分析及多重比较方法,于2010—2013年在天津滨海重度盐碱地区的大田试验中,开展了沸石、陶粒、蛭石和河沙4种隔盐材料对盐渍土0—80cm土层水盐动态及4个树种(刺槐、国槐、香花槐和红叶臭椿)生长影响的研究。结果](1)在树穴底部和侧壁铺设隔盐层可以明显降低土壤含盐量并显著增加土壤含水量。沸石处理(FS)能显著降低0—80cm土体内盐分含量,控抑盐效果明显优于其他处理。陶粒处理(TL)在40—80cm土层有显著的降盐效果,但其控盐效果比沸石差。蛭石处理(ZS)仅在40—60cm土体内显著降低土壤含盐量。河沙处理(HS)中,0—80cm土体内盐分含量虽低于对照,但与对照之间无显著差异,降盐效果最差;(2)铺设隔盐层可显著降低土壤盐分离子含量,其中对Na+,Cl-和SO2-4这3种滨海盐碱地主要盐分离子的去除效果排序为:FSTLZSHS;(3)隔盐层材料能有效改善树种根区土壤物理性质,提高各树种成活率和保存率,并能明显促进植物生长,其中沸石效果最佳。结论]可将沸石作为滨海地区4个树种造林时隔盐材料的最优选择。
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| 关 键 词： | 隔盐材料 河沙 水盐运移 树木生长 |
| 收稿时间： | 4/5/2014 12:00:00 AM |
| 修稿时间： | 5/9/2014 12:00:00 AM |
Effects of Salt-isolation Materials on Soil Water and Salt Movement and Tree Growth of Saline Soil in a Coastal Region |
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| WANG Linlin,LI Suyan,SUN Xiangyang,ZHANG Tao and FU Ying.Effects of Salt-isolation Materials on Soil Water and Salt Movement and Tree Growth of Saline Soil in a Coastal Region[J].Bulletin of Soil and Water Conservation,2015,35(4):141-147,151. |
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| Authors: | WANG Linlin LI Suyan SUN Xiangyang ZHANG Tao and FU Ying |
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| Institution: | College of Forestry, Beijing Forestry University, Beijing 100083, China;Department of Postgraduate, Beijing University of Agriculture, Beijing 102206, China;College of Forestry, Beijing Forestry University, Beijing 100083, China;College of Forestry, Beijing Forestry University, Beijing 100083, China;College of Forestry, Beijing Forestry University, Beijing 100083, China;College of Forestry, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | Objective] Assessing the effects of salt-isolation materials on soil water and salt movements in saline soil and on the growth of forestation four species(Robinia pseudoacacia, Sophora japonica, Robinia pseudoacacia cv. Idaho, Ailanthus altissima) in the coastal regions of Tianjin City. Methods] We used four salt-isolation materials to restrict the water and salt movements in the saline soil: zeolite(FS), ceramsite(TL), vermiculite(ZS) and river sand(HS). The research was conducted from 2010 to 2013 at the Coastal Salt-tolerant Plant Science and Technology Park, Dagang, Tianjin City. One-way ANOVA and multiple comparison were used in the data analysis. Results] (1) Salt-isolation interlayers could significantly reduce soil salt content and increase soil water content of tree planting site. FS treatment performed better than other treatments in reducing salt content and had the lowest salt content. The significant effect of TL treatment on salt content was only observed in the 40-80 cm soil layer, and it performed worse than FS. Relative to the control, ZS had no significant effects on salt content in the 0-40 cm and 60-80 cm layers. HS treatment also had no significant effects on salt content for the investigated soil profile. (2) Salt-isolation materials could significantly reduce soil salt content. FS performed best in reducing the major three salt ions of Na+, Cl- and SO42-, followed by TL, ZS and HS. (3) Salt-isolation materials could also effectively improve soil physical structure of the planting sites, increase tree planting survival rate and preserving rate, and enhance tree growth. On these points, FS was the best performer among the four salt-isolation materials. Conclusion] Selecting FS as the salt-isolation materials is the best option in controlling soil water and salt movement and improving tree growth in coastal regions. |
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| Keywords: | salt-isolation materials river sand water and salt movement tree growth |
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