beech相关论文
Dead trees, particularly downed logs, play an important role in the dynamics of forest ecosystem. Contribution of decayi......
The fluxes of masses and the nutrients Ca,Mg,K,N,P and S were determined in the litterfall of two adjacent forest ecosys......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
We studied the damage caused to unfelled trees during skidding operations in four beech stands of northern and central G......
Effects of uprooting tree on herbaceous species diversity, woody species regeneration status and sof
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Carbon sequestration capability of Fagus sylvatica forests developing in the Majella National Park (
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Natural regeneration of oriental beech (Fagus orientalis Lipsky) trees in canopy gaps and under clos
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Distribution of stem decay in the beech trees of the Azerbaijan and its impact on the output of comm
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Background:Coarse woody debris(CWD)is an important element of forest structure that needs to be considered when managing......
It was hypothesized that increasing air and/or soil temperature would increase rates of microbial processes including li......
测定森林土壤中的CO2 和N2O 的释放,在评价森林平衡大气中CO2 和N2O的作用方面有着重要的意义.为了量化立地对净碳矿化和N2O氮释放......
Effects of uprooting tree on herbaceous species diversity, woody species regeneration status and sof
We conducted a study to examine the pattern of development of herbaceous plant species,woody species regeneration and so......
报道了英国独特的真菌保护区里真菌的生态学和生物多样性,而该保护区内有关物种构成的数据自1994年就开始进行收集了.关于真菌的生......
Translocation of carbohydrate from leaves to roots via phloem and reallocation from roots to leaves via xylem regulate t......
To analyze the effects of elevated carbon dioxide concentration (PCO2) on the mass flow of reduced nitrogen (N) in the p......
通过比较山毛榉木材在4种室外用涂料涂够前和涂饰后的气体渗透能力，研究木材弦向和径向的气体渗透能力的变化。结果表明：漆膜可较好......
Effects of uprooting tree on herbaceous species diversity, woody species regeneration status and soi
我们进行了研究检验在树在 Tarbiat Modares 大学的试验性的福雷斯特车站的 20-ha 区域拔起以后的物理特征在伊朗的北方在 Mazanda......
到经由从根的韧皮部和到经由木部的叶子的重新分配的根的从叶子的糖类的 Translocation 调整在树的上面、地下的机关之间的碳(C) ......
Effect of canopy gap size and ecological factors on species diversity and beech seedlings in managed
We studied the species diversity of the herb layer and ecological factors in harvest-created gaps in beech stands under ......
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我们学习了在在不同收获系统下面被管理的北、中央的希腊的四个山毛榉看台在打滑的操作期间引起到 unfelled 树的损坏。在木材被收......
Beech （Fagus orientalis Lipsky） forest covers about 565,000 ha of land in Guilan province, north of Iran and forms a major......
Carbon sequestration capability of Fagus sylvatica forests developing in the Majella National Park(C
Terrestrial ecosystems represent a major sink for atmospheric carbon(C)and temperate forests play an important role in g......
Distribution of stem decay in the beech trees of the Azerbaijan and its impact on the output of comm
To determine the distribution of stem decay in the beech stands of Azerbaijan, we sought to identify the species, number......
Spatial correlation of pit and mound topography with canopy gaps in a virgin mixed beech forest,nort
In a reserved forest parcel in a virgin eastern Hyrcanian mixed beech forest,80 ha was surveyed to determine the pit and......
The fluxes of masses and the nutrients Ca,Mg,K,N,P and S were determined in the litterfall of two adjacent forest ecosys......
报道了英国独特的真菌保护区里真菌的生态学和生物多样性,而该保护区内有关物种构成的数据自1994年就开始进行收集了。关于真菌的......
摘要目前,应用于榉树无性繁殖的方法主要有嫁接、扦插和组织培养等。其中以扦插繁殖技术比较成熟,老枝的扦插成活率达到75%以上,嫩......
The dynamics and performance of soil biota during forest rotation were studied in monoculture beech stands forming a chr......
本文利用凝胶电泳法研究亮叶水青冈（Ｆａｇｕｓｌｕｃｉｄａ）种内遗传多样性。所测定的酶系统包括：过氧化物酶（ＰＸ１和ＰＸ２）、磷酸葡萄糖脱氢酶（ＰＧＤ）、谷氨酸草酰乙酸转氨酶（ＧＯＴ１和......
Gaps play a key role in forest ecosystem development and result from either natural processes or targeted forest managem......
该文应用凝胶电泳法测定中国水青冈3个种,即米心水青冈、巴山水青冈和亮叶水青冈的种群遗传多样性;分析了各物种种间、种内的遗传......
提出了根据不同植物种在地形梯度上的分布格局测度和比较其生态位的思路.将地形分解为海拔、坡向、坡位和坡度4个属性指标,作为多......
