| 许欢，周波，张池，陈旭飞，杨小雪，代金君，赵肖榕，戴军.赤红壤地区不同熟化程度旱地理化特性
及酶活性差异研究[J].广东农业科学,2014,41(9):79- |
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赤红壤地区不同熟化程度旱地理化特性
及酶活性差异研究 |
| Differences of dry land soil physico-chemical propertiesand enzyme activity under different maturationdegree in lateritic red soil area |
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| DOI： |
| 中文关键词: 熟化程度 赤红壤 理化特性 酶活性 |
| 英文关键词: maturation degree lateritic red soil physico-chemical properties enzyme activity |
| 基金项目:国土资源部公益性行业科研专项（201011006） |
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| 摘要点击次数: 1834 |
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| 中文摘要: |
| 华南典型赤红壤地区近5 年内的新垦旱地和普通旱地为研究对象，采用非对称T 检验及主成分分析
等研究方法，探讨了不同熟化程度下旱地理化及酶活性的差异。结果表明院新垦旱地土壤pH 显著低于普通旱地0.61
个单位（P=0.02）；与普通旱地相比，新垦旱地土壤有机质、全氮、全磷、碱解氮及速效磷含量分别显著降低31.05%、
44.13%、55.97%、49.68%和74.94%；新垦旱地土壤过氧化氢酶及脲酶活性显著低于普通旱地，而蔗糖酶和磷酸酶则差
异不显著；主成分分析结果显示院普通旱地和新垦旱地土壤理化及酶活性综合差异达极显著水平，相关分析结果显
示院土壤酶活性与主要肥力指标密切相关。 |
| 英文摘要: |
| In order to explore the physical, chemical and enzyme differences of soil with different maturation degrees,
new cultivated (last five years) and ordinary dry land were studied in the lateritic red soil region of southern China, and
asymmetric T-test and principal component analysis were used. The results showed that the pH value of new cultivated dry
land was significantly lower than ordinary by 0.61 units (P=0.02); New cultivated dry land significantly decreased by
31.05%, 44.13%, 55.97%, 49.68% and 74.94% in soil organic matter, total nitrogen, total phosphorus, nitrogen and
available phosphorus contents compared to ordinary dry land; New cultivated dry land had significantly lower soil Catalase
and Urease activity than ordinary, while their invertase and phosphatase were not significantly different. Principal
component analysis showed that comprehensive difference of the physical, chemical and enzyme index was significant
between the ordinary and new cultivated dry land. Correlation analysis showed that soil enzyme activity and fertility
indicators were closely related. |
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