广西沿海地区桉树林地土壤养分现状与评价  

The Present Situation and Evaluation of the Eucalyptus Forest Land Soil along the Coastal Area of Guangxi

作　　者：覃延南 

机构地区：[1]广西林业勘测设计院,南宁530011

出　　处：《广西林业科学》2008年第2期88-91,共4页Guangxi Forestry Science

摘　　要：通过对广西沿海地区桉树林地土壤养分测定分析，结果表明：土壤的pH值为4.07-5.30；有机质为0.49%-7.26%；全N为0.02%-0.23%；全P为0.03%-0.10%；全K为0.14%-3.08%；速效N为20.2-137.3 mg/kg；速效P为0.3-23.9 mg/kg；速效K为3.6-88.8 mg/kg；有效Cu为0.25-0.80 mg/kg；有效Zn为0.30-1.90 mg/kg；有效B为0.04-0.33 mg/kg。根据广西土壤养分含量等级划分标准，认为该地区土壤中的大量元素（N、P、K）和微量元素（B）均普遍缺乏，特别是大量元素（P、K）和微量元素（B）缺乏最为严重。因此，经营桉树速丰林不仅要施肥，还要合理施肥。By analyzing the nutrient of the Eucalyptus forest land soil along the coastal area of Guangxi, it is concluded as follows： the pH value of the soil is 4.07-5.30; the organic matter is 0.49 % -7.26 % ; Entire N is 0.02%-0.23% ; Entire P is 0.03% -0.10% ; Entire K is 0.14% -3.08% ; available N is 20.2-137.3 mg/kg; available P is 0.3-23.9 mg/kg; available K is 3.6-88.8 mg/kg; the available Cu is 0.25-0.80 mg/kg; the available Zn is 0.30-1.90 mg/kg; the available B is 0.04-0.33 mg/kg. According to the standard of Guangxi soil nutrient content rank division, macroelements （N, P, K） and microelement （B） are generally in shortage, especially the macroelements （P, K） and microelement （B）.

关 键 词：桉树林地 土壤养分 沿海地区 广西 

分 类 号：S714.8[农业科学—林学]