长春市常绿阔叶树种引种试验

为丰富长春地区的造林绿化树种,收集了韩国杜鹃等8种常绿阔叶树种,并进行了引种试验,经驯化栽培,初步筛选出韩国杜鹃、朝鲜黄杨2个适宜长春地区种植的常绿阔叶树种。     

千岛湖风景区林相改造初探

针对千岛湖森林资源现状及存在的问题,从有利于发展旅游事业出发,提出了千岛湖风景区林相改造的主要模式。     

千岛湖风景区林相改造初探

本文针对千岛湖森林资源现状及存在问题，从有利于发展旅游事业出发，提出了千岛湖风景区林相改造的主要模式，并进行简要的效益分析。     

豫西野生珍稀常绿阔叶树种调查

豫西山区处于亚热带向暖温带过渡地带，区内有熊耳山和伏牛山两条山脉，海拔最高点2212.5m，最低200m，年均气温13.3℃，极端最高气温41.2℃，1月份平均气温-0.8℃，极端最低气温-21℃。年均降水量754.6mm，年日照时数2515h。     

青岛地区常绿阔叶树种资源及应用评价

结合林木种质资源调查结果和多年实际工作观察,系统分析了全市常绿阔叶树种资源现状及应用情况。青岛地区现有常绿阔叶树种107种(变种、变型)(含棕榈及竹类),隶属于26科48属,约占全市木本植物总数的14%.依据栽培应用范围、数量和频度等因素,将应用情况分为普遍应用、局部应用、单点应用和尚未开发应用四类,并进行了分析评价,提出了常绿阔叶树种引种和应用建议。     

青岛市常绿阔叶树种及园林应用调查分析

从树种种类、观赏特点、配置方式、观赏效果及应用频度5个方面对青岛园林中常绿阔叶树种资源进行了实地调查。调查结果表明,有58种常绿阔叶树种属青岛原产或已引种成功,生长良好。系统分析了常绿阔叶树种在青岛园林中的应用现状,对常绿阔叶树种的选择、推广应用等方面提出了参考建议。     

常绿阔叶树种在石家庄园林景观中的应用

调查了石家庄园林中常绿阔叶树种类、越冬表现及园林应用形式,根据常绿阔叶树种的生态习性及越冬表现;讨论了石家庄引种一些常绿阔叶树的可行性及常绿阔叶树种在石家庄冬季园林景观中的作用。     

临沂市外来常绿阔叶树种抗寒性研究

采集10个外来常绿阔叶树(品)种当年生成熟枝条中部叶片为样本,进行人工冷冻处理,通过测定其叶绿素a、b含量、POD、SOD活性等指标,研究其抗寒机理。结果表明:随着温度降低,叶绿素a、b含量逐渐降低;-10℃时POD、SOD活性最大,生理曲线呈先高后低趋势。运用模糊隶属函数法进行抗寒性综合评定,抗寒能力由强到弱依次为龟甲冬青、广玉兰、金森女贞、红叶石楠红罗宾、日本女贞、大叶女贞、法国冬青、枇杷、香樟、日香桂。     

丝棉木嫁接常绿阔叶树种技术及在园林中的应用

宁夏地处西北内陆,冬季气候寒冷干燥,春季风沙干旱,灾害天气时有发生.恶劣的环境条件致使园林绿化树种缺乏,无常绿阔叶树种栽培,冬季景观较差.     

普陀山风景区林相改造思路探索

在分析普陀山各景区绿化现状的基础上，提出了采用改善林分卫生状况、更换树种、加强植被抚育管理等措施的林相改造方案，逐步淘汰黑松林，使整个景区形成以针阔混交林为主的森林群落。     

北京平原风景游憩林林相改造技术研究

通过一定技术的风景游憩林林相改造,既可有效地保护好森林植被,发挥森林的生态效应,又可提高游憩区的景观效果,从而实现森林的多功能特性。通过对北京平原林场的调查,从植物的生态学,植物学,美学和景观艺术等方面出发,对研究区风景游憩林的林相改造技术进行研究,提出了北京平原植物选择的方案与配置的各种模式,从而营造良好的植物景观游览环境。     

浅谈江苏园林绿化中常绿、落叶树种的配植

从常绿、落叶树种的生态习性及江苏省常绿树种的自然分布特点,探讨了落叶、常绿树种在园林绿化中的利用。认为徐淮地区、里下河、滨海盐土区不适宜常绿树种的生长,树种配植应为落叶阔叶树,而盱眙、六合丘陵、宁镇山脉及茅山山脉和长江三角洲丘陵地区可栽植少量耐寒性较强的常绿树种,但应以落叶阔叶树种为主。而在太湖沿岸及宜兴、溧阳较为适宜常绿阔叶树种的生长,可考虑增加常绿阔叶树种的种类及栽培规模。并认为,不必刻意追求单一的景观效果,常绿、阔叶树树种均具园林价值。     

南京地区引种的6种常绿阔叶树种抗寒性测试

选取南京地区已引种成功的6种常绿阔叶树种,运用越冬适应性观察与电导法作为对比测试手段,分析这些树种的抗寒能力。结果表明,采用低温循环仪自动降温程序模拟冰冻处理来测试叶片的相对电导率,计算出各树种的半致死温度(LT50)能定量地反映这些树种本身的抗寒能力高低,并且与它们在南京地区越冬适应性的观察基本相符。这些研究结果对预测常绿阔叶树种抗寒能力以及在较高纬度地区园林中的应用具有指导意义。     

Structure and species diversity of subtropical evergreen broad-leaved forest in northern Okinawa Island, Japan

The structure and tree species diversity of a subtropical evergreen broad-leaved forest in northern Okinawa Island, Japan, were studied. Enumeration of the six sampling plots revealed an average density of 5,580 individuals with DBH≧3.0 cm/ha, having an average basal area of 55 m². The large-size trees of DBH≧20 cm contributed 10% of the total individuals, and 49% of the total basal area. The forest showed a high diversity of tree species, which is comparable to some tropical rain forests. A total of 54 over-story species of 24 families and a total of 63 understory species of 26 families were identified in the six sampling plots. Fagaceae and Theaceae were the most important families;Castanopsis sieboldii, Schima wallichii andDistylium racemosum were the most important species. The diversity index and equitability index of species were 4.15 and 0.72 for the overstory plots, and 4.72 and 0.79 for the understory subplots, respectively. The diversity index for the overstory was significantly correlated to the total basal area of trees over 20 cm DBH (p<0.05) and the importance value ofC. sieboldii (p<0.001), while for understory, the diversity index was not correlated to the structural parameters (allp>0.16). The size distribution pattern and age structure indicated differences in regeneration strategies for canopy dominants. In population dynamics of the succession process,C. sieboldii andD. racemosum were self-maintaining types, andS. wallichii was a gap- or opening-dependent type. This study was made possible by support from the Japanese Ministry of Education, Sciences, Sports and Culture, which provided a Monbusho scholarship to X.N. Xu.     

层次分析法在北京西山风景游憩林树种选择中的应用

针对北京西山地区的立地条件与旅游发展规划的要求,应用层次分析法建立了景观游憩林树种选择的评价体系。结果表明：栾树、山杏、山桃、元宝枫、黄栌、臭椿、白蜡等落叶树种因其观赏性高且立地适应性较强,综合性状表现较好。由于抗性表现突出且四季常青,侧柏、油松两种常绿针叶树种综合评价也较高。在北京西山风景游憩林的营建中,树种选择宜采取针阔混交的方式,以花色、叶色较好的高分树种（山杏、黄栌、元宝枫、栾树、白蜡等）为基调,搭配常绿针叶树种（侧柏、油松）,营建以季相美景为特色的风景游憩林。     

粤西地区23个阔叶树种早期生长比较

对南亚热带森林群落恢复标准化示范区23个阔叶树种的早期生长进行了调查与分析。结果表明：23个阔叶树种在本地区有极强的适应性,且在树高、胸径、冠幅生长上均存在着极显著差异,为树种选择提供了依据;米老排、黎蒴栲生长速度最快;红锥、灰木莲、山杜英、锥栗、枫香、樟树生长较快;非洲桃花心木生长速度中等;其他树种生长较慢。     

Effects of selection cutting on the forest structure and species diversity of evergreen broa-leaved forest in northern Fujian, southern China

The short-term effects of selection cutting of different intensities on the forest structure and species diversity of evergreen broad-leaved forest in northern Fujian Province were investigated and analyzed. The results showed that selection cutting of low and medium intensities caused little variation in the forest structure. After cutting, the dominant species retained their leading status in the community. However, the community structure changed significantly following selection cutting of high and extra-high intensities; the status of the dominant species of the community declined dramatically. Some tree species began to disappear from the sampling plots. Except for extra-high intensity cutting, the diversity of tree species did not change significantly for the other three cutting intensities. However, the evenness of the stands was very different among the four kinds of cutting plots. For low and medium intensity selection cutting, the evenness declined slightly. For extra-high intensity selection cutting, the evenness increased to some extent, which might be due to a more even distribution of tree species after cutting. Cutting operations resulted in some adverse reactions to development of arborous species diversity of evergreen broad-leaved forest, particularly serious damage to the forest canopy. But the rational selection cuttings, which may benefit the restoration and maintenance of species diversity over a long period and may come about from the variations in environmental factors such as sunlight, temperature and humidity.     

Effects of selection cutting on the forest structure and species diversity of evergreen broad-leaved forest in northern Fujian, southern China

The short-term effects of selection cutting of different intensities on the forest structure and species diversity of evergreen broad-leaved forest in northern Fujian Province were investigated and analyzed. The results showed that selection cutting of low and medium intensities caused little variation in the forest structure. After cutting, the dominant species retained their leading status in the community. However, the community structure changed significantly following selection cutting of high and extra-high intensities;the status of the dominant species of the community declined dramatically. Some tree species began to disappear from the sampling plots. Except for extra-high intensity cutting, the diversity of tree species did not change significantly for the other three cutting intensities. However, the evenness of the stands was very different among the four kinds of cutting plots. For low and medium intensity selection cutting, the evenness declined slightly. For extra-high intensity selection cutting, the evenness increased to some extent,which might be due to a more even distribution of tree species after cutting. Cutting operations resulted in some adverse reactions to development of arborous species diversity of evergreen broad-leaved forest, particularly serious damage to the forest canopy. But the rational selection cuttings, which may benefit the restoration and maintenance of species diversity over a long period and may come about from the variations in environmental factors such as sunlight, temperature and humidity.     

蒙古栎林在温带落叶阔叶林群落分级中的地位

为清楚阐明蒙古栎林的群落分级及其在温带落叶阔叶林群落分级中的地位，我们收集了东北亚201个蒙古栎林和日本的153个栎林的资料．将其综合于一个简表中．并应用Braun—Blanquet方法对这些森林植被进行了比较。结果表明：在温带落叶阔叶林的群落分级系统中。蒙古栎林与水青冈纲占据着同等重要的地位，它们共同构成温带落叶阔叶林纲群(Class-group)。不同生境下的蒙古栎的20个群集或群落被归纳成为2个目、3个群团和3个亚群团。     

浙江丽水太山山地常绿阔叶林主要种群生态位研究

对浙江丽水太山山地常绿阔叶林中的10个主要乔木种群生态位宽度和生态位相似性比例及生态位重叠进行了研究。结果表明:(1)研究区主要树种的生态位宽度大小顺序为:甜槠>木荷>褐叶青冈>青冈>苦槠>米槠>枫香树>石栎>虎皮楠>多花泡花树;(2)生态位相似性比例大于0.4的仅有36对,占80%,表明群落内物种对资源利用相似性程度较高;(3)生态位重叠指数大于0.4的共有38对,占84.44%,说明生态位重叠的程度很高。