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In this thesis, research on alleviation of autotoxicity by planting mixture of Chinese fir and Broadleaf trees and developing undergrowth vegetation were also done. The results showed that Michelia macclurei and Cinnamomum camphora had positive allelopathic effect on the growth of Chinese fir saplings and developing undergrowth vegetation improved soil decline of Chinese fir plantation.

另外,论文还从植物化感作用的角度,对克服杉木人工林连栽障碍的其它生产措施,如营造混交林及人促林下植被的发育生长,进行了研究:提出了与杉木化学生态关系良好的两种伴生树种,并从化感作用角度证明人促林下植被发育有利于克服杉木人工林的连栽障碍。

Based on the distribution data of 22 dominant species of typical evergreen broadleaf forest of Castanopsis , Cyclobalanopsis and Lithocarpus and 11 climatic factors, the range types of these species and their relationship with environmental factors were analyzed by Correspond Analysis and Canonical Correspond Analysis.

以壳斗科锥属、青冈属和柯属的22个典型常绿阔叶优势种的分布资料和11项环境因子为基础,利用对应分析和典范对应分析,对这些物种的分布类型以及同环境因子之间的关系开展数量分析。

11local broadleaf Species were planted in west of Guangdong in spring,2003.Early growth resuit showed, species could adapt the climate and soil condition of west Guangdong,2 species include Castanopsis fissa.and Castanopsis hystrix grew best.

2003年在信宜进行了53个阔叶树种生长比较试验,选择其中11个树种进行调查分析,结果表明:11个阔叶树种在粤西地区具有极强的适应性;多个阔叶树种在粤西地区的早期表现良好,生长表现最好的树种是藜蒴和红椎。

Using Close-Top incubation method,we measured the N mineralization rate in soils (0~15 cm) of monsoon evergreen broadleaf forest,seasonal rain forest,rubber plantation,heavily disturbed seasonal rain forest,Millettia laptobotrya secondary forest and upland rice field.

在云南省中国科学院西双版纳热带生态站周围,用顶盖埋管法,对季风常绿阔叶林、季节雨林、橡胶林、受过严重干扰的季节雨林、鸡血藤次生林和旱谷地的氮矿化速率进行研究。

Five leaf morphometric indexes, namely Leaf area, leaf perimeter, leaf vertical length, leaf horizontal width and blade length of four plants including Cinnamomum burmannii, Evodia lepta, Psychotria rubra and Rhodomyrtus tomentosa were determined using WinFolia, an image analysis system of broadleaf.

利用阔叶图像分析系统WinFolia测定了我国南方阴香、三叉苦、九节和桃金娘4种植物的叶面积、叶周长、叶垂直长、叶水平宽和叶片长5项叶形态指标,通过方差分析和回归分析揭示各项指标的变异状况和指标间的相关性,探寻其叶面积无损测定方法及其可靠性。

The results showed that small-scale gaps were the predominant types of disturbance. The average gap density was 12.5 km^(-1). The distribution pattern of gaps was aggregated on south facing slopes and was approximately homogeneous on north facing slopes. Conifer trees were the primary gap-makers in this forest that was dominated by Abies faxoniana, Tsuga chinensis, Betida utilis, both in abundance and diameter rank. The decay class distribution of gap-makers indicated that the mode of gap formation and gap-maker species changed with age of the forest; the contribution of conifer species to gap formation decreased with time and broadleaf species increased.

结果表明:l本区以小型林隙干扰为主,林隙平均密度为12.5个km^(-1),林隙的分布格局在阳坡和山脊为集聚分布,阴坡近均匀分布;林隙形成木以针叶树为主,岷江冷杉、铁杉和糙皮桦在形成木的数量和径级组成上均居前列。2林隙形成木的腐烂等级分布揭示出林隙形成木的形成方式和种类组成均随时间变化。

Warmer climate is unadvantaged to major forest type in the northeast of China,The percentage of major conifers decrease, along with the percentage increase of some broadleaf trees.

气候增暖不利于东北主要森林类型生长,主要针叶树种比例下降,阔叶树比例增加;温带针阔混交林垂直分布带有上移的趋势;增暖幅度越大,变化越明显。

Needle broadleaf mixed forest, altitude among 2400—2700m, southern slop,glade and inhabit wood (according to 49%,44%, 44%, 64%, 58% respectively).The main food of blood pheasant are grain leaf and genus carex.Some of them also choose shrubs, conifer forest and eastern slop of hills.

影响血雉栖息地选择主要有下列因子:针阔叶混交林、海拔2400—2700米、南坡和有大量林中空地及栖材的生境(其比例分别为49%、44%、44%、64%、58%),食物主要是禾叶苔草;对灌丛、针叶林、东坡也有一定的选择。

Between the dorm mansions, the broadleaf trees, bamboos, vines, camphors are growing on the lawns. There are lovely fruits hung on the peaches and apple trees giving a sign of auspicious.

寝室楼之间草坪上种有阔叶树、竹、藤萝、香樟等,尤其让人欣喜的是那片果林,桃红梨白开过,竟硕果累累,一派教师喜盼的桃李芬芳吉祥预兆。

Discover in Ping Yuanxin Su Tieye of lake of celestial being of 10 individual plant gives birth to plant; Bai Leshu to be in those who join an administrative division to plant among them group of amounts amount to 160 individual plant, give priority to; to be in with seedling benevolence change fine-toothed comb 3 pointed fir amount to; of 300 individual plant to make the same score Yuan Banfeng carry on one's shoulder to Ren Douxin of; of 100 individual plant sees Yu Qingxin is mixed only then promote, peace of; of above of 1000 individual plant, river source and broadleaf plant mountain discover the amount Su Tie brake is planted group, aggregate; of hundreds individual plant only then allow new discovery tree of silver-colored magpie of 57 individual plant.

其中在平远新发现10株仙湖苏铁野生植株;伯乐树在连州的种群数量达160株,以幼苗为主;在仁化篦子三尖杉达300株;平远半枫荷有100株;任豆新见于清新和始兴,数量1000株以上;和平、河源和蕉岭发现苏铁蕨种群,合计数百株;始兴新发现57株银鹊树。

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