| 不同土地利用类型对土壤氮素的影响 |
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| 引用本文： | 张泽彦,魏红义,马建文,商华业,闫扬帆,李凯.不同土地利用类型对土壤氮素的影响[J].林业科技,2019(2):28-30. |
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| 作者姓名： | 张泽彦 魏红义 马建文 商华业 闫扬帆 李凯 |
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| 作者单位： | 郑州师范学院;地表过程分析与模拟实验室;南水北调中线干线工程建设管理局河南分局;临朐县沂山风景区管理委员会 |
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| 摘 要： | 选取林地、园地和耕地3种土地利用类型,分析禹州市褐土土壤中氮素含量的研究结果表明:0～15 cm土层中,矿化氮含量为:林地>园地>耕地;土壤表层(0～5 cm)硝态氮含量林地最高,显著高于园地和耕地,而土壤表层铵态氮含量园地和林地显著高于耕地;不同土层中的,林地、园地和耕地的硝态氮和铵态氮含量差异显著(P<0.05)。在林地和园地0～5 cm土层中,硝态氮含量显著高于10～15 cm土层,而耕地中硝态氮含量无显著差异,其中林地的硝态氮含量随土壤深度的增加而降低。3种土地利用类型铵态氮含量主要集中分布在土壤0～10 cm土层中。
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| 关 键 词： | 土地利用类型 硝态氮 铵态氮 不同土层 |
Effects on Soil Nitrogen Content from Different Land Use Types |
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| Institution: | (Zhengzhou Normal University, Henan Zhengzhou 450044) |
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| Abstract: | Land use type is an important factor affecting the distribution of soil nitrogen content. In this experiment, the forest land, garden land, and cultivated land were used to analyze the nitrogen content in the cinnamon soil of Yuzhou City. The results showed that the mineralized nitrogen contents in 0~15 cm soil profile were forest land > garden land > cultivated land. The nitrate content in the soil surface layer (0~5 cm) was the highest in the forest land, which was significantly higher than that the other two land use types, while the surface layer ammonium nitrogen contents in the soil under forest land and garden land were significantly higher than that in the cultivated land. The contents of nitrate nitrogen and ammonium nitrogen in different soil layers were significantly different. The nitrate nitrogen content in 0~5 cm soil layer of forest land and garden land was significantly higher than that of 10~15 cm soil layer, but there was no significant difference in nitrate nitrogen content of cultivated land. The nitrate nitrogen content of forest land decreased with soil depth. The ammonium nitrogen content of three land use types was mainly concentrated in the soil 0~10 cm layer. |
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| Keywords: | Land use types Nitrate content Ammoniumnitrogen content Different soil layers |
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