南京林业大学学报(自然科学版) ›› 2024, Vol. 48 ›› Issue (5): 131-138.doi: 10.12302/j.issn.1000-2006.202304024
收稿日期:
2023-04-20
修回日期:
2023-12-03
出版日期:
2024-09-30
发布日期:
2024-10-03
通讯作者:
* 李孝刚(xgli@njfu.edu.cn),教授。作者简介:
周梦田(zmtclh@163.com)。
基金资助:
ZHOU Mengtian(), LIU Li, FU Ruoxian, LI Xiaogang*()
Received:
2023-04-20
Revised:
2023-12-03
Online:
2024-09-30
Published:
2024-10-03
摘要:
【目的】凋落物回归影响着杉木(Cunninghamia lanceolata)人工林土壤碳氮循环,是杉木人工林可持续经营和土壤地力维持的重要过程。通过分析添加杉木与木荷(Schima superba)凋落物处理下土壤碳氮含量和酶活性的变化特征,为杉木人工林近自然化改造及林分管理提供依据。【方法】以30年生杉木人工林土壤为研究对象,分别添加杉木凋落物(S)、木荷凋落物(M)以及杉木与木荷凋落物混合物(SM),混合质量比例设置为m(杉木):m(木荷)=5:1。通过60 d室内培养,测定不同处理土壤中铵态氮(
中图分类号:
周梦田,刘莉,付若仙,等. 杉木与木荷凋落物分解对杉木人工林土壤碳氮含量和酶活性的影响[J]. 南京林业大学学报(自然科学版), 2024, 48(5): 131-138.
ZHOU Mengtian, LIU Li, FU Ruoxian, LI Xiaogang. Effects of litter decomposition of Cunninghamia lanceolata and Schima superba on soil carbon contents, nitrogen contents and enzyme activities in Cunninghamia lanceolata plantations[J].Journal of Nanjing Forestry University (Natural Science Edition), 2024, 48(5): 131-138.DOI: 10.12302/j.issn.1000-2006.202304024.
图4
土壤化学性质与碳氮酶活性的冗余分析 NO3-N. 硝态氮nitrate nitrogen; NH 4 +-N.氨态氮ammonia nitrogen;SOC.土壤有机碳 soil organic carbon;WSOC.水溶性有机碳 water soluble organic carbon;HHOC.酸溶性有机碳 hydrochloric hydrolyzed organic carbon;AHOC.碱溶性有机碳 alkaline hydrolyzable organic carbon;ROC.难溶性有机碳 recalcitrant organic carbon;GC.β-葡萄糖苷酶 β-1,4-glucosidase;NAG.β-N-乙酰氨基葡萄糖苷酶 β-1,4-N-acetyl glucosaminidase;PPO. 多酚氧化酶 polyphenol oxidase;LAP. 亮氨酸氨基肽酶 leucine aminopeptidase。"
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