基于主成分分析的昭平县桉树人工林土壤肥力质量评价  

Evaluation of Soil Fertility Quality of Eucalyptus Plantation in Zhaoping County of Hezhou Based on Principal Component Analysis

作　　者：黄媛凤 Huang Yuanfeng(Zhaoping County Forestry Bureau,Zhaoping,Guangxi 546899,China)

机构地区：[1]广西壮族自治区昭平县林业局,广西昭平546899

出　　处：《绿色科技》2023年第13期159-162,共4页Journal of Green Science and Technology

摘　　要：桉树具有较高的经济价值,在带动区域经济发展、保障国家木材供应等方面具有显著优势。为研究评价桉树人工林的土壤肥力,给桉树及其下游产业的可持续发展提供保障。选择代表土壤肥力状况的8个指标,并采用主成分分析、因子分析等方法对其肥力状况进行了评价。结果表明:该区域土壤呈酸性,有机质含量为25.35 g/kg,处于较高水平。土壤养分状况方面,氮、钾元素含量处于中等偏上水平,主要问题在于土壤全磷、有效磷含量较低,需要针对性补充土壤磷元素含量,同时配合保肥保水措施,以保障桉树人工林的可持续发展。Eucalyptus has high economic value and significant advantages in driving regional economic development and ensuring national wood supply.The purpose of this study is to evaluate the soil fertility of Eucalyptus plantations and provide guarantee for the sustainable development of Eucalyptus and its downstream industries.In this study,eight indicators representing soil fertility were selected,and their fertility status was evaluated by principal component analysis,factor analysis and other methods.The results indicate that the soil in this area is acidic,with an organic matter content of 25.35g/kg,which is at a high level.In terms of soil nutrient status,the content of nitrogen and potassium elements is at a moderate to upper level.The main problem lies in the low content of total phosphorus and available phosphorus in the soil,which requires targeted supplementation of soil phosphorus content.At the same time,it is necessary to cooperate with fertilizer and water conservation measures to ensure the sustainable development of Eucalyptus plantations.

关 键 词：土壤质量 人工林 可持续发展 肥力指标 

分 类 号：S714.9[农业科学—林学]