【摘要】 采用立体经营模式对现有油茶林进行改造,能够改善油茶林地的土壤水分状况和温度状况,起保水稳温作用,减轻油茶林的冻害与旱害;同时能够改善油茶林地土壤的养分状况,研究结果表明,采用二层结构模式和三层结构模式可使土壤有机质含量的平均值分别提高0.55%和1.57%,全氮、全磷、碱解氮、速效磷含量也有不同程度提高。此外,采用立体经营模式改造油茶林能够明显提高油茶产量,并可收获大量林下植物产品,取得较大的经济效益。本文研究结果,对于合理开发利用本省乃致长江以南各省油茶林资源具有重大意义。更多还原

【Abstract】 Using the multilaycr cropping model to renew tea-oil plantation (Camellia oleosa) can improve soil humidity and tcmpcrature condition,Preserving soil humidity and main- raining soil tcmpcrature,which will reduce the damages to the tea-oil trees from the cold in winter and the drought in Summer.It can also improve the soil nutrient status of the tea-oil forest.The results of the study indicate that using the 2-layer structure model and the 3-layer structure model will increase the average value of the soil organic matter con- tent by 0.55% and 1.57%,respectively.Meanwhile,the soil total N,total P,available N and available P contents are increased in some degrees,too.Besides,by using the multilayer croping model,great amount of under forest vegetation crops will be harvested while the yield of the tea-oil forest will be raised remorkedly,hence significant economic profit.The results of the study in this paper is of great significance for proper exploitation and utiliza- tion of tea-oil forest resources in Jiangxi Procince.更多还原