桉-草-牧复合经营模式综合效益分析及模式筛选  

Integrated Benefit Analysis and Model selection of Eculypitus-grass-herbal Comprehensive Management Model

作　　者：刘晓蔚[1] 韦铄星[1] 张烨[1] 黄荣林[1] 刘菲[1] 蒋燚[1] LIU Xiao-wei;WEI Shuo-xing;ZHANG Ye;HUANG Rong-lin;LIU Fei;JIANG Yi(Guangxi Forest Research Institute, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Key Laboratory of Central South Fast-growing Timber Cultivation of Forestry Ministry of China, Nanning 530002, China)

机构地区：[1]广西壮族自治区林业科学研究院广西优良用材林资源培育重点实验室国家林业局中南速生材繁育实验室,南宁530002

出　　处：《广西林业科学》2017年第1期65-70,共6页Guangxi Forestry Science

基　　金：广西科学研究与技术开发计划项目(桂科攻1299001-1);自治区主席科技资金项目(2012217-1)

摘　　要：运用灰色系统理论与方法进行桉-草-牧复合经营模式综合效益评价研究,初步筛选出桉(2 m×3 m)+象草+涠洲黄牛、桉(2 m×3 m)+象草+波尔山羊和桉(2 m×6 m)+象草+涠洲黄牛、桉(2 m×6 m)+象草+波尔山羊4种具有良好综合效益的复合经营模式,其综合效益关联度分别为0.904 0、0.885 0、0.882 0和0.863 7,比桉树纯林提高了46.52%以上。同时经过评价指标的分析,最终选择确定Shannon-Wiener指数、土壤毛管孔隙度、土壤田间持水量、土壤有机质、土壤全N、土壤全K、桉树树高、桉树胸径、桉树种植年均投入、桉树种植年均收入、牧草营养养分和林农接受程度等12个指标,可应用于构建评价指标的最小数据集,并反映系统的综合效益。The integrated benefit analysis ofEculypitus -grass-herbal comprehensive management model was carried out by principle of gray correlation analysis. Four comprehensive management models (Eculypitus (2 m×3 m) +Pennisetum purpureum + Weizhou yellow cattle,Eculypitns (2 m×3 m) +Pennisetum purpureum + boer goat andEculypitus (2 m×6 m) +Pennisetum purpureum + Weizhou yellow cattle,Eculypitns (2 m×6 m) + Pennisetum purpureum + boer goat) with good integrated benefit were preliminarily selected. The correlation degree of the integrated benefit was 0.904 0, 0.885 0, 0.882 0 and 0.863 7, respectively. Compared with pure forest of Eculypitus , it improved more than 46.52% . Meanwhile, through the evaluation index analysis, Shannon-Wiener index, capillary capacity of soil, field holding water of soil, organic material of soil, nitrogen of soil, kalium of soilm, the tree hight of Eculypitus , the DBH of Eculypitus , the annual input of Eculypitus planting, the annual income ofEculypitus planting, the nutrition of grass and the acceptance of farmers were finally comformed. Those indexes could biuld the minimum database of evaluation index and reflect the integrated benefit of the system.

关 键 词：桉树 牧草 复合经营 综合效益 灰色系统理论 

分 类 号：S792.39[农业科学—林木遗传育种]