滨海盐碱地生态修复效果评价

发布时间：2018-07-04 09:01

本文选题：滨海盐碱地 + 柽柳　；参考：《西北林学院学报》2017年02期

【摘要】：为解决滨海盐碱地生态环境脆弱、已有生态修复措施耗费大、植被成活率低问题,通过原土改良、乡土耐盐碱植物不同形式的栽植、养护,分析和评价不同改良方法对滨海盐碱地的生态修复效果。结果表明,通过场地平整、深耕晒垡、增施有机肥、中耕通气、浅耕均匀等改良措施,能够使0~60cm土壤的理化性状明显改善,土壤全盐平均降低0.088%;在原土改良基础上栽植植被,相同养护模式下柽柳栽植区全盐平均降低0.33%,翅碱蓬栽植区全盐平均降低0.204%,柽柳与翅碱蓬混合栽植区全盐平均降低0.36%;单一栽植柽柳,在不同养护方式下,未养护区全盐平均升高0.031%,未起到改良效果,常规养护区全盐平均降低0.33%,优化养护区全盐平均降低0.47%。由此可见,土壤结构的改良、植被的选择、种植层次设置、管理养护等措施对滨海盐碱地原土生态修复效果明显,可以在当地推广应用。
[Abstract]:In order to solve the problem of fragile ecological environment in coastal saline-alkali land, the existing ecological restoration measures are expensive and the survival rate of vegetation is low. Through the improvement of original soil, different forms of planting and conservation of saline-alkali tolerant plants in native soil, To analyze and evaluate the ecological restoration effect of different improvement methods on coastal saline-alkali land. The results showed that the physical and chemical properties of 0~60cm soil could be improved obviously by the improvement measures of site leveling, deep plowing and furling, adding organic fertilizer, aeration and even tillage, and the total salt content of soil was decreased by 0.088%, and the vegetation was planted on the basis of original soil improvement. Under the same conservation mode, the total salt in Tamarix chinensis planting area was reduced by 0.33, the salt content in Suaeda salsa area was reduced by 0.204, the total salt of Tamarix chinensis and Suaeda salsa mixed planting area was reduced by 0.36 percent, and that of Tamarix chinensis was planted under different conservation methods. The average increase of total salt in unprotected area was 0.031, and the effect of improvement was not achieved. The average reduction of total salt in conventional curing area was 0.33, and that in optimized curing area was 0.47. It can be seen that the improvement of soil structure, the selection of vegetation, the arrangement of planting levels, the management of conservation and other measures have obvious effect on the ecological restoration of coastal saline and alkali soil, and can be popularized and applied in local areas.
【作者单位】：潍坊学院生物与农业工程学院山东省高校生物化学与分子生物学重点实验室;
【基金】：山东省自然科学基金项目(ZR2014CL006) 潍坊市科技发展计划项目(2015GX017)
【分类号】：S156.42

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