BAO Huaining,SUN Zhaojun,REN Qiushi,et al.Different Allocation Model of Trees Brushes andGrasses in Saline Soil of Gansu Province[J].Northern Horticulture,2018,42(01):118-123.[doi:10.11937/bfyy.20172346]
甘肃盐渍化土壤不同乔灌草配置模式
- Title:
- Different Allocation Model of Trees Brushes andGrasses in Saline Soil of Gansu Province
- Keywords:
- saline soil; allocation of trees brushes and grasses; pH; soil salt; salt ions
- 文献标志码:
- A
- 摘要:
- 针对甘肃白银盐渍化土壤盐分含量高、结构差、植被恢复困难的特点,在统一施用土壤改良剂的基础上,设置柽柳+紫穗槐、月季+景天、9901柳+月季+马莲等9种不同植物种类结合的配比试验,通过监测不同配置模式下土壤pH、全盐、盐分离子等指标以及林草的成活率、覆盖度等生长指标,研究不同乔灌草配置对当地盐渍化土壤的改良效果。结果表明:柽柳+紫穗槐配置模式下,土壤的pH下降最明显,0~20、20~40、40~60 cm土层pH降幅分别为5.3%、4.7%、5.8%;土壤含盐量降幅也最大,0~20、20~40、40~60 cm土层全盐含量降幅分别为88.37%、85.51%、76.97%;Na+、Cl-、HCO3-含量显著降低;柽柳和紫穗槐成活率分别达98.5%和88.6%。
- Abstract:
- Aiming at the tricky problem in Baiying,Gansu Province in this study.Dealing with its salinized soil with high salt content,unsatisfactory soil structure and difficulty in vegetation restoration etc.problem,there are a set of various of vegetation combination experiment sets in this paper,such as tamarisk and amorpha,rose and stonecrop,9901 willow and rose and malian.Based on the same improved soil,the pH and total salt of the soil and salt ions were tested.At the same time,the survival rate of forest and the percentage of vegetation coverage were in the detected.The effects of different allocation model of trees brushes and grasses on soil salinization were studied.The results showed that the soil pH decreased the most obvious,0-20 cm,20-40 cm,40-60 cm soil pH decreased by 5.3%,4.7%,5.8%;the soil total salt decreased the most obvious,0-20 cm,20-40 cm,40-60 cm soil pH decreased by 88.37%,85.51%,76.97%;the contents of Na+,Cl- and HCO3- were significantly decreased,and the survival rate of tamarisk and amorpha were 98.5% and 88.6%,respectively.
参考文献/References:
[1]郭世乾,崔增团,傅亲民.甘肃省盐碱地现状及治理思路与建议[J].中国农业资源与区划,2013(4):75-79.
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备注/Memo
第一作者简介:鲍怀宁(1993-),男,河北承德人,硕士研究生,研究方向为盐碱地水盐调控和节水灌溉理论与新技术。E-mail:baohuaining@126.com.