不同施肥措施对高峰林场桉树人工林土壤碳氮磷化学计量特征的影响  

Effects of Different Fertilization Measures on Soil C N and P Stoichiometry of Eucalyptus Plantation in Gaofeng Forest

作　　者：邓文相 陈亮 徐凤翠 赵隽宇 徐航 Deng Wenxiang;Chen Liang;Xu Fengcui;Zhao Junyu;Xu Hang(Guangxi Gaofeng State Owned Forest Farm,Nanning 530001,Guangxi Zhuang Autonomous Region,China;Guangxi Zhuang Autonomous Region Forestry Research Institute/Guangxi Research and Development Center for New Forestry Fertilizer Nanning 530002,Guangxi Zhuang Autonomous Region,China;Guangxi Weidu State Owned Forest Farm,Nanning 546100,Guangxi Zhuang Autonomous Region,China)

机构地区：[1]广西壮族自治区国有高峰林场,广西壮族自治区南宁530001 [2]广西壮族自治区林业科学研究院/广西林用新型肥料研发中心,广西壮族自治区南宁530002 [3]广西壮族自治区国有维都林场,广西壮族自治区来宾546100

出　　处：《农业技术与装备》2022年第8期38-39,42,共3页Agricultural Technology & Equipment

基　　金：广西林科院基本业务费项目“袋控缓释肥料中磷元素在土壤中的固定机制研究”(林科202113号)。

摘　　要：传统施肥方式肥料流失严重、利用率低,长期施用对土壤养分循环效率有负面影响。该研究以桉树人工林为研究对象,设计不同施肥措施对比试验,并统计其土壤有机碳、全氮、全磷含量及化学计量特征,旨在探索一种高效、可持续的生态营林措施。结果表明:传统施肥与袋控缓释肥对于土壤全氮含量的提升具有显著正向效应,施用有机肥对于土壤有机碳的累积具有正向作用。化学计量特征显示,袋控缓释肥对于保持高效的土壤养分循环具有良好的促进作用。在实际经营过程中,对于土壤有机碳含量较低的桉树人工林种植区域,可以采取施用25%以上有机质含量的有机-无机复混肥,以改良土壤,提高养分循环效率。Traditional fertilization has serious fertilizer loss and low utilization rate, and long-term application has negative impact on soil nutrient cycling efficiency. In this study, eucalyptus plantation is selected as the research object, the comparative experiment of different fertilization measures is designed, and the soil organic carbon, total nitrogen, total phosphorus content and stoichiometric characteristics are analyzed, aiming to explore an efficient and sustainable ecological forest management measures. The results show that traditional fertilization and bag-controlled slow-release fertilizer had a significant positive effect on the increase of soil total nitrogen content, and application of organic fertilizer had a positive effect on the accumulation of soil organic carbon. The stoichiometric characteristics show that bag-controlled and slow-release fertilizer had a good promoting effect on maintaining efficient soil nutrient cycling. In practice, organic-inorganic compound fertilizer with more than 25% organic matter content can be applied in eucalyptus plantation areas with low soil organic carbon content to improve soil and improve nutrient cycling efficiency.

关 键 词：化学计量学 土壤有机碳 养分循环 生态营林 桉树人工林 

分 类 号：S792.39[农业科学—林木遗传育种]