广西桉树种植对土壤的影响研究

Study on Influence of Eucalyptus Plantation on Soil in Guangxi

广西是桉树种植大省,在取得巨大经济效益的同时,部分种植区域内出现了土壤退化的现象,在学术界和商界一度引起争论。文章基于国内众多学者的研究,通过综合分析,从土壤有机质、水分、生物多样性、土地利用潜力4个方面对桉树种植过程中对土壤造成的影响进行研究。分析造成一系列影响的原因,得出桉树的不合理种植会造成土壤退化的结论,提出选择降水量充足和坡度适宜地区种植、采取混交营林、枯枝落叶培肥、改进施肥以减少桉树种植对土壤不利影响等建议。桉树种植不能一禁了之,通过合理的经营管理能有效改善其对土壤的不利影响,旨在为广西桉树种植产业健康可持续发展提供决策参考。

A lot of Eucalyptus are planted in Guangxi,it made much benefit in economics.At the same time, soil degradation appeared in parts of planting areas,it caused a debate in academic and the business world.In this paper, based on many researches of domestic scholars, and using integrated analysis, effect of Eucalyptus on soil were researched from four aspects, including soil organic matter, water, biological diversity and potential land use. Analyzing the reasons of series effect,the conclusion was that unreasonable Eucalyptus planting would cause the soil degradation,proposing recommends like selecting precipitation sufficient and slope suitable areas to plant, mixing camp forest, reducing fertilizer, and improving fertilization to reduce adverse effect on soil caused by Eucalyptus planting.Eucalyptus planting cannot be banned arbitrarily, and proper management can reduce the adverse effects on soil.This paper aims at providing decision-making reference for healthy and sustainable development of Eucalyptus cultivation industry in Guangxi.