Picea相关论文
Detecting the driving forces underlying the divergence of spruce forests in China:evidence from phyt
本研究在中国云杉林的全部自然分布范围内(23°-53°N,75°-134°E,海拔250-4300 m),采样调查了172个样方,收集其群落的物种组成、......
青海云杉(Picea crassifoliaKom)是我省的主要造林、用材、水源涵养和绿化观赏的乡土优良广域树种;华北落叶松(Larix principis—......
青海云杉(Picea crassifolia Kom.)、青杨(Populus cathayana Rchd.)是我省林区和川水地区的2个主要建群树种。其材质的优劣往往......
临江林业局从1966年起即将红皮云杉(Picea Koraiensis)列为主要更新树种之一。二十年来,共营造红皮云杉人工林80,559亩,其中已郁......
森林立地质量的高低对林木产量影响很大,一切森林经营工作和估计林木生长潜力,对不同立地必须分别对待。过去少采用划分不同更新经......
天山中部林区对天山云杉(Picea Sch-renkiana)实行择伐作业已有近30年的历史.目前该区覆被的近成熟林绝大部分是经过择伐作业的林......
本文以天山中东部林区天山云杉(Picea Schrenkiana Fisch.et Mey.Vat.tianshanica(Rupr.)Cheng et S.H.Fu)异龄林为研究对象。利用......
重金属和酸性沉降物连同干旱和其它因素已经成为导致“森林减少”的原因。赛勒和帕格涅里将红果云杉(Picea rubensSarg)和火炬松(......
引言人们已经提出许多假说来解释整个北美东部不同地区红果云杉(Picea rubens Sarg.)的活力、生物量以及更新能力下降的原因。关......
通过对凉水林场红皮云杉(Picea koraiensis)天然林和人工林树干解析研究表明:个体的生长变异与成幼龄生长变异的相关程度,均随年龄......
我国50～60年代初期,林业部综合队曾编制红松(Pinus koraiensis Sieb.et Zucc.)、云杉(Picea spp.)、马尾松(Pinus massoniana Lamb......
本文以径级(胸径间隔)为基础,编制甘南地区紫果云杉、岷江冷杉生命表。 一、研究方法 本项研究于1986和1987年,在甘肃省南部云、......
本篇论文报道了挪威针叶树树冠密度与自然因素之间的联系。这项研究的结果结合监测潜在由空气污染物引起的森林衰退问题进行了讨论......
With the support of 18 AMS-14C data, a high-resolution pollen record from the Suancigou section at Jingning, Gansu Provi......
A paleo-sprucc (Picea jezoensis) timber dated to (10 040 + 100) a B. P. was found in the Hunshan-dak sandy land, Inner M......
对种群年龄结构的研究表明，虽经人为频繁干扰，管涔山青扦天然林仍表现出异龄林结构特征，立木年龄范围超过一个龄级期，根据年龄结构特征......
New observation of cone flies attacking cones of Picea obovata and Larix sibirica in central Siberia
Two species of cone flies (Strobilomyia anthracina and S. svenssoni) emerged from puparia werecollected under Siberian s......
从1989年起对挪威大约4000棵云杉的落叶和林冠颜色作了逐年调查。在1989～1995年间挪威云杉(Picea abies)的落叶和针叶褪色呈现显著......
本文分别对凉水地区的红皮云杉天然林和帽耳山地区的红皮云杉人工林的管胞性状进行了研究，方差分析结果表明：管胞长度、管胞直径和管......
在钥匙湖镍矿体上方采集的植物和土壤样品作了U、Ni、Co、Cu、Pb、Zn、Cd、V、Mo、Fe、Mn和Cu元素分析。采样植物有短叶松(Pinns ......
Poroid species of wood-inhabiting fungi growing on spruce (Picea koraiensis Nakai or Picea yezoensis (Sieb. & Zucc.) Ca......
组成长白山阔叶红松林的主要树种红松、云杉、落叶松、大青杨、白桦、椴树、水曲柳和色木的幼树,盆栽于模拟自然光照和人工调节CO2......
在长白山北坡海拔700m至1300m,海拔每上升100m设置一样地,共计13个海拔梯度,研究主要建群种种群结构及重要值沿海拔梯度的变化。结......
The Gongga Mountain of eastern Tibet Plateau is a representative of the alpine regions with high peaks and deep valleys.......
Tree Productivity and Water Potential Productivity in Returning Farmland to Forest Project in Datong
From 2002 to 2003, based on the investigation of sample plots and stem analysis of remained plantation communities in th......
Biogeographic Differences in Cone, Needle and Seed Morphology among Natural Picea asperata Populatio
This study represents a geographical approach to morphological variation of cones, needles and seeds in natural dragon s......
Based on the spatial information techniques such as RS, GIS, and GPS, the forest landscape patterns in the Helan Mountai......
我国晚冰期和现代都存在寒温型和温暖型两类不同生态的暗针叶林,晚冰期之初,它们在东部平原的分布南界分别为37°N和31°N.晚冰期......
Picea mongolica is an endemic but endangered species in China. The spruce forest is only found in sandy forest-steppe ec......
Morphological and biological investigation of two pioneer Ips bark beetles in natural spruce forests
Bark beetle species in natural stands of spruce, Picea crassifolia (Kom.) were investigated in Maixiu Forest Park, Qingh......
Many studies have estimated approximately ranges of thresholds of low soil temperature in the growth and ecophysiologica......
[Objective] The experiment aimed to determine the optimum ISSR-PCR reaction system of Picea crassifolia kom. [Method] Pi......
53 pollen traps and surface samples were collected in order to detect the characteristics of pollen assemblages and thei......
在日本北海道高位泥沼池,调查了远东红皮云杉(Piceaglehnii)、库页冷杉(Abies sachalinensis)和日本桤木(Alnusjaponica)树干茎流......
Altitudinal patterns of stand structure and herb layer diversity of Picea schrenkiana forests in the
Altitude is a useful indicator to examine patterns of forest structure and species diversity in relation to environmenta......
Picea mongolica W. D. Xu is an endemic and endangered species which is only found in semi-arid areas of northern China. ......
PALYNOLOGICAL RECORD OF PALEOVEGETATIONCHANGE DURING HOLOCENE AT NORTH TUMDPLAIN IN INNER MONGOLIA,C
In this paper, the Holocene paleoenvironment change sequence in middle Inner Mongolia was primarily reconstructed on the......
Tibetan spruce (Picea smithiana) is an endemic species of the Himalayas,and it distributes only in a re-stricted area wi......
The local damages such as knots,decay, and cracks can be translated into a reduction of service life due to mechanical a......
The effects of sucrose concentration,pH value and storage conditions on germination and pollen tube growth of in vitro c......
Spatial distribution pattern of Picea schrenkiana population in the Middle Tianshan Mountains and th
The spatial distribution of plant populations is an important feature of population structure and it determines the popu......
Snow gliding and loading under two different forest stands: a case study in the north-western Italia
The presence of a thick snowpack could interfere with forest stability, especially on steep slopes with potential damage......
The environmental signal of an early Holocene pollen record from the Shiyang River basin lake sedime
Pollen analyses of 85 samples from the San-jiaocheng section well along the margin of a palaeolake at the end of the Shi......
基于林业生态功能和青海省森林资源清查数据,采用森林植被生物量换算因子连续函数法,系统估算与分析青海省森林植被碳储量、碳密度......
