滇中地区荒山造林乡土树种选择试验

2003年7月在石林林场紫云林区选择15种1～2年生乡土树种的苗木进行荒山造林,通过5年的造林效果对比分析,对参试树种进行生长量、抗旱性、抗寒性、抗病虫害能力等的综合评价,筛选出适宜滇中地区荒山造林的优良树种。结果表明:适应性最强的树种是云南松、麻栎、滇青冈、旱冬瓜、冬樱花、川滇桤木、球花石楠7个树种,各项指标综合表现相对较好,可以作为滇中地区荒山造林优选树种。在持续干旱连年发生的情况下,以第3年的保存率来评价造林成效较为可靠。     

昆明地区面山造林乡土树种的定量选择试验

为筛选昆明地区绿化造林的优良乡土树种,于2003年5月在石林林场紫云林区设计了14个乡土树种的随机区组造林试验,包括5个重点区组,14个树种处理,于2007年2月进行调查.通过5年的观测调查,对14个参试树种的树高、地径、冠幅、冠高等的生长性状进行了分析研究,认为存在极显著差异.并用定量的方法筛选出冬樱花、石楠、麻栎、川滇桤木、旱冬瓜、云南杉等6个树种为入选乡土造林树种,并进行了讨论.     

湖北亚高山造林树种的探讨

湖北亚高山地区几十年来造林树种选择走过一段曲折的道路。由于对亚高山气候条件认识不足和片面追求速生丰产,以致事倍功半。但从不少乡土树种和引进树种的造林中也有成功的事例。作者认真总结分析了树种选择成败的经验教训,提出一些见解,供参考。     

浙江海岛乡土树种资源调查研究

在植物、植被和林业调查的基础上，筛选出适应海岛生境的３９５个乡土绿化树种，分析了树种资源的基本特点，并根据立地条件分５类阐述了树种选择依据和资源现状，最后，提出了乡土树种资源开发利用意见。     

内蒙古几个乡土树种造林技术研究

经过抗逆性观测,筛选出几个乡土树种在内蒙古三个立地类型区进行了植苗和直播造林试验,结果表明:植苗造林前苗木浸水是关键,浸足水的苗木再采取抗旱保水措施可提高成活率和保存率;直播造林以秋季播种为佳,但在鼠害猖獗的地方,灭鼠是关键,要在出苗前采取治理措施。     

重庆市优良乡土树种综合评价与选择研究

在对重庆市的自然条件及社会经济状况分析的基础上,对实地调查和通过资料查阅确定的60种重庆市优良乡土树种进行了综合评价及选择。分别依据不同用途的树种制定不同的选择标准,确定出若干评价指标：对用材树种选定了速生性、丰产性、耐瘠性、抗寒性、抗旱性、抗病虫害能力、干材形质、材用价值等8个指标;对生物质能源树种选定了速生性、丰产性、耐瘠性、抗寒性、抗旱性、抗病虫害能力、多用途性、工业价值等8个指标;对景观树种选定了观叶、观花、观果、观树形、抗寒性、抗旱性、抗病虫害能力、抗污染性、吸硫能力、滞尘能力、降低噪音能力等11个指标。采用3分制并提出了每个指标的分级标准,运用层次分析法来确定各个指标的权重,根据各指标的分值和权重对60个目标树种进行了综合评价。主要结果与结论如下：（1）对20种用材树种进行综合评价的结果表明：鹅掌楸、香椿、桤木、檫木、毛桂、香樟为综合效益较高的用材树种,苦楝、川楝、厚朴、山杜英等树种次之。（2）按照20种生物质能源树种的综合评价值大小,建议选择杜仲、桤木、苦楝、刺槐、光皮树、山桐子等树种作为生物质能源林建设的主要树种。此外,灯台树、山苍子、文冠果、麻栎、栓皮栎等可以作为备选树种。（3）通过对20种景观树种的综合评价分析得出,深山含笑、四照花、珙桐、栾树、枫香、厚朴等是非常优异的观赏树种,可作为绿化骨干树种,枫杨、山桐子、红豆树、伯乐树等可作为绿化基调树种。     

高山乡土灌木树种——金（银）露梅

乡土树种是在当地自然条件下,经过多年优胜劣汰考验和自然竞争后留下来的,对当地灾害性气候有较强的抵御能力,特别适应当地环境。在全面推进林业现代化建设的进程中,保护和利用好乡土树种,对促进绿化造林,挖掘和拯救当地的乡土资源具有重要意义。金（银）露梅是落叶灌木,高30-80厘米,分枝多,幼枝披丝毛、羽状复叶集生,小叶3-7裂,长椭圆形,     

太行山林区乡土树种造林前景探讨

太行山林区过去造林树种以油松、落叶松为主,结构单一,生物多样性下降,森林火险等级上升、病虫害频繁发生。提出了由单纯营造针叶纯林向营造针阔混交林、乔灌混交林和灌木林改造的建议。     

造林树种的选择研究

指出了造林的树种选择是符合自然规律及经济要求的综合体现,是发展林业生产最重要的一步,也是造林目的和达到这一目的所用手段的有机结合。分析了造林树种选择的意义与原则,从适应性、目标性、乡土树种等方面探讨了造林树种的选择。     

粤西东山森林公园主要造林树种选择与经营模式

以云浮市东山森林公园14种主要造林树种为研究对象,采用套种补植、人工造林2种造林方式和穴状抚育或全面割灌+穴状抚育的抚育方式组合,分析4种经营模式下14种阔叶树种的生长情况.结果表明:采用相同的造林方式时,各树种在全面割灌+穴状抚育的抚育方式下胸径生长较好,但对树高的生长影响不显著;采用相同的抚育方式时,采用套种补植造林的樟树(Cinnamomum camphora)、木荷(Schima superba)、铁冬青(Ilex rotunda)、红苞木(Rhodoleia championii)、秋枫(Bischofia javanica)和米老排(Mytilaria laosensis)胸径和树高生长大于人工造林的,黄槐(Cassia surattensis)、降香黄檀(Dalbergia odorifera)和羊蹄甲(Bauhinia purpurea)人工造林的胸径和树高生长大于套种补植的;云浮市东山森林公园建设的适宜基调树种为米老排、火力楠(Michelia macclurei)、木荷(Schima superba)、樟树、秋枫和降香黄檀,主题树种为铁冬青、黄槐、大叶紫薇(Lagetstroemia speciosa)和美丽异木棉(Ceiba speciosa),以及应用套种补植结合全面割灌+穴状抚育的经营模式.     

Water consumption of a single tree from the main afforestation tree species in Western Shanxi Province, a loess area

Water is the key factor in vegetation growth in a loess area. Researchers have been keen on the study of tree transpiration for a long time. To provide a scientific basis and practical instruction for vegetation reconstruction and recovery in a loess area, the paper measured and calculated the water consumption of potted Platycladus orientalis, Robinia pseudoacacia, Armeniaca vulgaris and Pyrus hopeiensis separately during the growing season (from Apr. to Nov.). The four were the main afforestation species in a loess area of western Shanxi based on the principle of water balance. Using data on soil water dynamics and the range of available moisture on potted mature trees, the relationship between water supply and consumption and soil moisture availability and deficit state were analyzed. Several conclusions are listed as follows: 1) In the dry year (2002), during the growing season the precipitation was 430.7 mm and the water consumption of potted trees was from 430 to 490 mm. More water consumption and less available water supply occurred, showing a serious water deficiency. In the rainfall-rich year (2003), during the growing season the precipitation was 870.2 mm and the water consumption of potted trees was from 480 to 515 mm. Due to the uneven distribution of rainfall, the water budget balance was slightly affected in May and November. 2) The curves of soil water content of different species had similar annual changes, although the trends were different in the same month, and those of the same tree species in different test plots also had different trends in the same month. 3) Non-available soil water content of Platycladus orientalis, Robinia pseudoacacia, Armeniaca vulgaris and Pyrus hopeiensis was less than 8.0%, 8.4%, 9.2% and 9.7% respectively, which indicated that Pyrus orentalis used water more efficiently than the others. In the dry year (2002), for several months, soil water content of potted trees was lower than its threshold value for non-available soil water content, which could influence the healthy growth of trees. After supplements of precipitation of winter in the year and spring in the next year, soil water content was higher than the lower limit of soil readily available moisture content, which implied that a balance between inter-annual water supply and consumption could be maintained. __________ Translated from Scientia Silvae Sinicae, 2006, 42(9): 18–23 [译自: 林业科学]     

高州水库林分改造树种选择试验分析

对高州水库生态现状进行分析,并阐述高州水库林改技术要点,对已引种的10种阔叶树种植试验进行调查分析,结果表明：高山榕、格木、红花荷是水库森林群落林相改造的首选树种。     

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。     

盐碱地城市林业生态体系建设树种选择及配置的研究

根据盐碱地城市林业的特点 ,分析了盐碱地城市林业生态体系的建设的特点 ,就乔灌藤竹等树种的选择及适用范围和功用进行了讨论 ,并研究了盐碱地城市林业生态体系内的树种配置方式和条件 ,为盐碱地城市林业生态体系的建设进行了有益的探索。     

不同造林密度和混交树种对光皮桦幼林生长的影响

通过对光皮桦不同造林密度、不同混交树种的试验研究,结果表明:光皮桦不同造林密度林分的生长有较大差异,其胸径、冠幅由大到小依次为:1 100株.hm-2、800株.hm-2、1 600株.hm-2、2 500株.hm-2,树高以1 100株.hm-2的林分最大,其余比较相近。光皮桦与不同树种混交生长有较大差异,各生长指标以杉木×光皮桦混交林最好,其余依次为:福建柏×光皮桦、木荷×光皮桦、马尾松×光皮桦;光皮桦纯林生长指标与福建柏光皮桦混交林比较接近。杉木×光皮桦和福建柏×光皮桦是较好的混交组合。     

武汉城区古树资源与树种规划

文章简要分析了武汉城区古树资源的特征,并从区分不同树种的使用目标、发挥生态功能、本地树种开发、园林群落多样性以及特色园林景观构建等5个方面阐述了古树资源对市区树种规划的意义。       

沙松选优技术研究

通过分析沙松解析木找出沙松胸径早晚期相关关系，制定沙松优树标准，为建立沙松无性系种子园打好基础。     

Properties and flammability of major tree species in the Beijing area

In order to examine correlations among the properties of tree species and to quantify the relationships between these properties and flammability, the properties of 20 tree species, consisting of heat of combustion, extractive contents, ash content, moisture content and basic density, were measured via experimental methods. In the first instance, the results show that, there are significant correlations between heat of combustion and extractive contents, ash content and basic density. Second, heat of combustion can be presented effectively in terms of linear regression models with extractive contents and ash content as independent variables. Third, a flammable model was developed based on four properties of tree species as independent variables, i.e., heat of combustion, extractive contents, ash content and moisture content. Finally, the flammability of 20 tree species is compared, ordered and ranked based on this flammable model. The conclusion is that flammability can be predicted from properties of tree species, which are significantly correlated among themselves. __________ Translated from Forest Resources Management, 2008, 4: 83–88 [译自:林业资源管理]     

基于隶属函数的杉木伴生树种的选择

根据生态相似度,采用隶属函数方法对6种不同类型的杉木伴生树种的选择开展分析,结果表明：木荷和毛竹是良好的杉木伴生树种,马尾松和虎皮楠是较好的伴生树种,而猴欢喜和厚皮香是较差的伴生树种。