| 杉木与木荷混交23 a后土壤碳氮剖面特征 |
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| 引用本文： | 杨起帆,孙敏,郑莹莹,孟晓蕊,黄猛,黄玉梅,丁国昌.杉木与木荷混交23 a后土壤碳氮剖面特征[J].北华大学学报(自然科学版),2017,18(3). |
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| 作者姓名： | 杨起帆 孙敏 郑莹莹 孟晓蕊 黄猛 黄玉梅 丁国昌 |
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| 作者单位： | 福建农林大学林学院,福建 福州,350002;福建农林大学艺术与园林学院,福建 福州,350002;福建农林大学艺术与园林学院,福建 福州 350002;国家林业局森林公园工程技术研究中心,福建 福州 350002 |
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| 摘 要： | 研究23 a生杉木纯林、木荷纯林和杉木木荷混交林的土壤碳、氮、碳氮比(C/N)之间的剖面分布差异.结果表明:杉木纯林、木荷纯林和杉木木荷混交林地的表层土壤(0~10 cm)碳、氮元素含量最高并逐层递减,且杉木木荷混交林碳、氮元素含量明显高于木荷纯林和杉木纯林(P0.05);在向下3个土层中3类林分的碳、氮元素含量差异较小(P0.05),杉木木荷混交林的优势并不明显,低于木荷纯林和杉木纯林.与纯林相比,杉木木荷混交林在表层土壤中对土壤碳、氮含量有显著提高,可能是因为杉木与木荷混交改变了林冠结构,有利于落叶分解.
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| 关 键 词： | 杉木 木荷 混交林 土壤 |
Profiles of Soil Carbon,Nitrogen of 23 a Mixed Plantation of Schima superba and Chinese Fir |
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| Yang Qifan,Sun Min,Zheng Yingying,Meng Xiaorui,Huang Meng,Huang Yumei,Ding Guochang.Profiles of Soil Carbon,Nitrogen of 23 a Mixed Plantation of Schima superba and Chinese Fir[J].Journal of Beihua University(Natural Science),2017,18(3). |
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| Authors: | Yang Qifan Sun Min Zheng Yingying Meng Xiaorui Huang Meng Huang Yumei Ding Guochang |
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| Abstract: | The distribution profiles of soil carbon,nitrogen characteristics of 23 a Chinese fir pure stand(CS), Schima superba pure stand( SS) and the mixed plantation of Schima superba and Chinese fir ( MS) were explored. Results show that:in the upper soil (0~10 cm) ,N content of CS,SS,MS are the highest and CS>SS>MS,and C,N of MS are significantly higher than those of CS and SS(P<0. 05);but in the deep layer soil,there was no significant difference among 3 types of stands (P>0. 05). Compared with pure forest,Chinese fir and Schima superba mixed forest in surface soil on soil carbon, nitrogen content has a significantly improved. This may be mixed forest of Chinese fir and Schima superba has changed the structure of canopy, which is favorable to decomposition of leaves. |
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| Keywords: | Chinese fir Schimas uperba mixed stand soil |
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