树皮土基质和降盐碱剂对盐碱土的改良效应

doi:10.11707/j.1001-7488.20100707

林业科学 ›› 2010, Vol. 46 ›› Issue (7): 42-48.doi: 10.11707/j.1001-7488.20100707

树皮土基质和降盐碱剂对盐碱土的改良效应

朱虹¹,王文杰¹,祖元刚¹,贺海升²,关宇²,许慧男¹,于兴洋¹

1.东北林业大学哈尔滨 150040;2.沈阳师范大学沈阳 110034

收稿日期:2009-03-05 修回日期:2009-11-24 出版日期:2010-07-25 发布日期:2010-07-25
通讯作者: 祖元刚

Roles of Fermented Bark Medium and Krilium in Improving Saline-Alkali Soil

Zhu Hong¹;Wang Wenjie¹;Zu Yuangang¹;He Haisheng²;Guan Yu²;Xu Huinan¹;Yu Xingyang¹

1.Northeast Forestry University Harbin 150040; 2. Shenyang Normal University Shenyang 110034

Received:2009-03-05 Revised:2009-11-24 Online:2010-07-25 Published:2010-07-25

摘要/Abstract

摘要：

利用改良基质（树皮土基质）和降盐碱剂马来酸酐(HPMA)对盐碱土进行改良，在盐碱土+HPMA（处理1），盐碱土与树皮土基质配比为4∶1+HPMA（处理2），2∶1+HPMA（处理3），1∶1+HPMA（处理4）等不同基质上种植不同植物（亚麻、高粱），观察改良土壤的物理化学特性和植物的生长及生理代谢产物的变化。结果表明： 1）经过改良后的盐碱土的pH值和电导率表现明显的下降趋势。最佳效果是pH值降低1.7个单位（对照的盐碱土pH值为10.5，处理4的pH值降低为8.8），较接近对照壤土的pH值(8.3)。改良后的盐碱土（处理4）电导率（481.4 μS·cm^-1)与对照盐碱土的电导率（614.5 μS·cm^-1)相比较，减低21.7%。各改良土壤有机质含量和土壤毛细管水上升高度表现不同程度的提高。2）虽然不同植物对于不同改良措施的反应不尽相同，但各改良土壤上不同植物的生长高度均得到提高。3）根据对试验植物在不同处理的生理代谢产物含量（可溶性糖，游离脯氨酸）的分析表明：各改良土壤上随着树皮土基质在盐碱土中比例的增加，植物可溶性糖含量也在逐渐增加，植物游离脯氨酸含量明显降低，表明树皮土基质对盐碱土有良好的改良效果，改良措施使植物受胁迫程度降低。从改良程度上看，加入树皮土基质越多，植物生长越好，但从经济角度来看，在盐碱土中加入HPMA的同时添加 1/4的树皮土基质已经使盐碱土的理化特性得到显著改善。

关键词: 盐碱土, 树皮土基质, 游离脯氨酸, 可溶性糖, 降盐碱剂马来酸酐(HPMA)

Abstract:

The different proportions of fermented bark medium (fermentable bio-fertilizer) were mixed into the saline-alkali soil with Krilium (HPMA) for improving saline-alkali soil. Linum usitatissimum and Sorghum bicolor were grown in the modified soils with different proportions of mixtures (0∶1; 4∶1; 2∶1; 1∶1, of the medium to the saline-alkali soil) with HPMA. The results showed: 1) The modified saline-alkali soil had a reducing tendency in pH value and electrical conductivity. In treatment 4（1∶1 with HPMA）, pH value decreased to 8.8, which was 1.7 units lower than that of the control saline-alkali soil and was close to non-saline-alkali soil (pH 8.3); The soil electrical conductivity in treatment 4 was 481.4 μS·cm^-1, which was 21.7% lower than that of control saline-alkali soil (614.5 μS·cm^-1). Addition of the fermented bark medium obviously increased the soil organic matter and ascending height of soil capillary water. 2) The addition of the fermented bark medium remarkably increased the growth of seedlings although different plants had different heights in different treatments. 3) Additions of the fermented bark medium all increased contents of soluble sugars, and obviously declined the contents of free proline of the plants. The changes increased with increased proportions of fermented bark. The results showed that the fermented bark had a significant role in decreasing the saline-alkali soil stress on plant growth. The more fermented bark medium proportion was added, the remarkable effect was obtained in improving the saline-alkali soil. In view points of economics, the treatment 2 (4∶1 with HPMA) showed the better efficiency for saline-alkali soil improvement.

Key words: saline-alkali soil, ferment tree bark soil (fermentable bio-fertilizer), free proline, soluble sugar, Krilium (HPMA)

朱虹;王文杰;祖元刚;贺海升;关宇;许慧男;于兴洋. 树皮土基质和降盐碱剂对盐碱土的改良效应[J]. 林业科学, 2010, 46(7): 42-48.

Zhu Hong;Wang Wenjie;Zu Yuangang;He Haisheng;Guan Yu;Xu Huinan;Yu Xingyang. Roles of Fermented Bark Medium and Krilium in Improving Saline-Alkali Soil[J]. Scientia Silvae Sinicae, 2010, 46(7): 42-48.

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树皮土基质和降盐碱剂对盐碱土的改良效应

Roles of Fermented Bark Medium and Krilium in Improving Saline-Alkali Soil

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