广西桉树种植区土壤条件及其可持续开发的思考  

Planting of Eucalyptus and its effect on soil fertility in Guangxi

作　　者：谭宏伟[1] 周柳强[1] 黄美福[1] 

机构地区：[1]广西农业科学院,南宁530007

出　　处：《广西农业科学》2009年第8期1031-1033,共3页Guangxi Agricultural Sciences

基　　金：国家科技支撑计划项目(2006BAD05B06-05);IPNIIPI广西自然科学基金项目(桂科自0832202);广西农业科学院科技发展基金重点项目(2007001Z);国家农业部项目(WX-2-07-13);国家科技支撑计划项目(2007BAD30)

摘　　要：作为广西3大造林树种之一,桉树具有速生丰产、适应性广、病虫害少、用途广泛的特点,但长期种植会引起土壤肥力衰退,严重影响种植区可持续生产。通过对田林、钦州、扶绥3个桉树种植区的土壤条件、桉树生长量及其对养分的吸收量所作的分析显示,平衡施肥可有效弥补因桉树砍伐所带走的矿质养分,维持树体养分平衡,是营造桉树丰产林、实现种植区可持续生产的重要手段。Eucalyptus is one of three major afforestation species in Guangxi. The advantages of eucalyptus include its fast growing habit, high yield, wide adaptability, lesser susceptibility to diseases and insect pests and extensive uses. Nevertheless, the data showed that prolonged Eucalyptus cultivation led to the decline in soil fertility levels and affects the nearby soil. The soil condition, growth and nutrient uptake by Eucalyptus in three planting zones of Tianlin, Qingzhou, and Fusui in Guangxi have been investigated. The results showed that balanced fertilization could compensate the mineral nutrient in soils absorbed by Eucalyptus and keep the nutrient balance in rhizosphere. This might be an important method to get high productive forest of Eucalyptus and ensure the productivity and fertility of planting areas.

关 键 词：桉树 矿质养分 可持续生产 

分 类 号：S792.39[农业科学—林木遗传育种] S714[农业科学—林学]