| 宿少锋，陈毅青，薛 杨，王小燕，林之盼.海南岛滨海台地5 种典型林分类型土壤理化特性研究[J].广东农业科学,2016,43(11):64-69 |
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海南岛滨海台地5 种典型林分类型土壤理化特性研究 |
| Soil physical and chemical properties of five subtropical forests in Wenchang coastal platform, Hainan |
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| DOI：10.16768/j.issn.1004-874X.2016.11.010 |
| 中文关键词: 海南岛 滨海台地 森林类型 森林土壤 理化性质 |
| 英文关键词: Hainan island coastal terrace forest type forest soil physical and chemical properties |
| 基金项目:海南省省属科研院所技术开发研究专项（KYYS-2015-21） |
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| 中文摘要: |
| 以海南岛滨海台地5 种典型林分类型为研究对象，研究不同森林类型0～100 cm 土层土壤理化
性质。结果表明，次生林土壤容重相对最大，相思林土壤容重相对最小，椰树林土层间变异系数最大，木麻
黄林最小。5 种不同森林类型表层土壤（0～10 cm，10～20 cm）随着土壤深度的变化，土壤总孔隙度和非
毛管孔隙度呈增大趋势，其他层次土壤总孔隙度变化和非毛管孔隙度呈不规律性变化。随着土壤深度的增
加，土壤含水率呈递增状态，不同森林类型间土壤总孔隙度、土壤含水率差异性显著。5 种不同森林类型土
壤pH 都呈酸性或微酸性，木麻黄林与次生林、桉树林、 相思林pH 值差异性显著。5 种森林土壤全N 含量
在土壤剖面中具有明显的垂直分布性，随着土壤深度的增加呈降低趋势，不同森林类型间全N、全K 含量
差异性显著，全P 含量差异性不显著。同一森林类型0～10 cm 土壤全N 与其他层次显著性差异，说明滨海
沙土表层更利于 N 素循环。 |
| 英文摘要: |
| To understand the physical and chemical properties of soil in 0-100 cm layer in different forest
types，this paper studied five typical forest types in the coastal platform of Hainan Island. The results showed that
soil bulk density of secondary forest was the highest, while Acacia auriculaeformis forest was the lowest. The variation
coefficient of soil layer showed that the coconut forest was the largest, and Casuarina equisetifolia forest was the
lowest. The total soil porosity and non-capillary porosity of five different forest types (0-10 cm, 10-20 cm) increased
with the depth of soil, but in other layers, they were irregularity. The soil water content increased with the depth of soil,
and the differences were significant in different forest types. The pH value in five different forest types was acidic or
slightly acidic, the differences between Casuarina equisetifolia forest and secondary forest, Eucalyptus forest, Acacia
auriculaeformis forest were significant. Soil total N content in soil profile had a clear vertical distribution, which
decreased with the depth of soil. The differences of total N and K contents were significant，while the P content was
not in different forest types. There was significant difference in soil total nitrogen between 0-10 cm and other layers in
the same forest type, which indicated that the surface layer of seashore sand soil was more beneficial for N cycle. |
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