本文利用138株湿地松的地径、胸径资料建立了湿地松胸径与地径的关系模型，结果表明：湿地松胸径与地径的关系可采用直线方程进行模拟；在此基础上，可以通过测定湿地松地径换算成胸径，从而达到估算林木材积的目的，为林政资源管理及林业执法机关的执法提供理论依据，具有十分重要的生产实践意义。

In this paper the DBH and basal diameter data of 138 Pinus elliottii trees were used to establish the relational model between the DBH and basal diameter of Pinus elliottii in Jixi County. The results showed that the relationship between the DBH and basal diameter could be modeled with the linear equation and based on this,the DBH could be converted with the basal diameter measured to achieve the aim of estimating the timber volume and provide theoretical basis for the forestry administration, forest resource management and law enforcement by forestry law enforcement agencies, being of great significance in production practice.

采用层次分析法和地理信息系统技术，经过评价指标选择、指标权重确定、评价体系构建、评价因素叠加分析、评价结果分析等5个环节研究湖北省湿地松良种基地规划布局。结果表明：国家级湿地松良种基地选址在沙洋县、京山县和安陆市较好；省级湿地松良种基地选址在随县和麻城市较好；市县级湿地松良种基地选址在谷城县、襄城区、枣阳市、宜城市、南漳县、钟祥市、当阳市、孝昌县、浠水县、蕲春县和兴山县较好。

AHP(Analytical Hierarchy Process)and GIS(Geographic Information System)were used in the planning of Pinus elliotii superior variety base in Hubei Province through the 5 steps(the evaluation index selection,index weight determination,evaluation system construction ,evaluation factors overlay analysis , evaluation results analysis , etc ).The results showed that:Shayang county , Jingshan county and Anlu city are appropriate to establish national Pinus elliotii superior variety base;Sui county and Macheng city are appropriate to establish a provincial Pinus elliotii superior variety base;Gucheng county ,Xiangcheng area ,Zhaoyang city ,Yicheng city,Nanzhang county,Zhongxiang city,Dangyang city,Xiaochang county,Xishui county,Qichun county and Xingshan county are ap-propriate to establish a city or county level Pinus elliotii superior variety base.

从介绍湿地松芽苗培育方法出发,包括制作芽苗育苗床、种子消毒、种子催芽处理及沙床播种方法等方面,论述了芽苗移栽方法,并阐述了苗圃管理技术,为苗农培育湿地松苗木提供了参考。

Starting from introducing the shoots nursery methods of slash pine, including production of shoots nursery bed, seed disinfection, seed germination treatment and sand bed planting method ,the methods of shoots transplanting were discussed ,and nursery management techniques were elaborated. The results provided references for seedling cultivation of lash pine.

选取太湖流域2种具有代表性的针阔混交林，应用传统林分结构因子配合混交度、角尺度、大小比数和开敞度4个参数进行比较，分析冬青湿地松混交林和栎树湿地松混交林的林分基本特征、空间结构和演替趋势。结果表明，冬青湿地松林的物种丰富度相对较高；对空间结构各参数进行比较，冬青湿地松林空间结构优于栎树湿地松林，林分处于相对稳定状态。其中在冬青湿地松林中，山矾、冬青可能会发展成为优势树种；在栎树混交林中，麻栎和栓皮栎的生长空间受限制，演替过程中优势度会有所下降，短柄粃和构树可能成为优势种。

In order to understand the features and situation of complex spatial structure along Taihu Lake that provides the basis for scientific management for forests.Two representative mixed forests in Taihu Basin Suzhou,Jian-gsu Province were analyzed with traditional stand structure indices and four spatial structure indices of mingling,an-gle index,neighborhood comparison and opening degree.The results showed that the species richness of Ilex purpurea and Pinus elliottii mixed forest was relatively higher.Comparison of the parameters from the spatial structure,I.pur-purea and P.elliottii mixed forest was better than Quercus and P.elliottii mixed forest.In I.purpurea and P.elliottii mixed forest,I.purpurea,Symplocos spectabilis may become dominant tree species.In Quercus and P.elliottii mixed forest,because of Q.acutissima and Q.variabilis growing space were constrained,their succession dominance could be decline,Q.glandulifera and Broussonetia kazinoki would become the new dominant species.

2001~2003年,在建水县半干旱暖热岩溶区具有代表性的石漠化和非石漠化2种立地类型上,采用云南松、湿地松、加勒比松和马尾松4个针叶树种造林,通过10余年的生长量观测,研究其对滇东南岩溶区的生长适应性。结果表明,4个树种对滇东南非石漠化土地和石漠化土地均有较强的适应性,其中以马尾松和湿地松的总体表现较优;云南松前3年生长较慢,其后生长加快,总体表现较好;加勒比松表现最差,不适宜滇东南半干旱暖热岩溶区作造林树种。

From 2001 to 2003, at two kinds of sites namely stony desertification area and non-stony desertification area in Jianshui county of Yunnan province , four Pinus species including Pinus yunnanensis, P.elliottii, P.caribaca and P.massoniana were respectively planted .Based on the growth increment observation data , the growth adaptability of four Pinus species to karst area of southeast Yunnan was studied .The results indicated that all the four species showed promising adaptability to karst area of southeast Yunnan , especially P.massoniana and P.elliottii had satisfactory growing performance .P.yunnanensis was characterized by slow growth in the first three years after fixed planting , followed by speed up of growth , and the growing performance was generally satisfactory . P.caribaca was the one with the worst growing among all the four Pinus species , and was not suitable to be the af-forestation tree species in semi-dry warm karst area of southeast Yunnan .