Horticultural sector in particular has been recognized for the excellent concept of color conifer species - Jinguan Parker (also known as Shannon Parker crown) Cupressus macrocarpa CV and Wheatgrass hodginsii Cupressus glabra'Blue Ice 'National, one of the major breeding base.

尤其為園藝界所公認的優(yōu)良觀色針葉樹種--金冠柏 Cupressus macrocarpa CV和藍冰柏Cupressus glabra'Blue Ice'全國主要的繁育基地之一在线免费观看黄色开车视频高清。

The population density, distribution, and sampling model of a bark beetle,Dendroctonus armanˉ di , on Huashan conifer,Pinus armandi , were investigated in a for est stand located in Liuba County, Shaanxi Province, China.

在陜西省留壩縣的華山松林區(qū)黄片免费看国产片美国，對華山松大小蠹（Dend roctonus armanˉ di）種群密度、分布狀態(tài)和抽樣模型進行了研究操美女视频导航。

The max value of the spatial heterogeneity grade were decrease according to the increase of decay degree of stump in the gap with stump.(4) The result showed by studing the season change of soil respiration in a conifer-broadleave forest after select cutting in Xiaoxingan Amount,soil respiration presenced the well season change after select cutting.The soil surface CO_2 flux has good correlated with soil temperature and soil moisture.

4對小興安嶺地區(qū)典型針闊混交林擇伐后土壤呼吸速率季節(jié)變化研究結(jié)果表明在线看片91，擇伐作業(yè)后，土壤呼吸速率呈現(xiàn)規(guī)律性的(來源：AdaB6565C論文網(wǎng)www.abclunwen.com)季節(jié)變化摸下面嗯啊网站，林地表面土壤呼吸速率與土壤溫度和濕度有著較好的相關(guān)性美女被狂cao，土壤溫度和濕度共同解釋了林地表面土壤呼吸速率的68.10%～98.9%。

These pollen maps show significant vegetation changes during the past 10 000 years in the current forest regions of Northeast China, with the early Holocene characterized by the widely distributed Birch, the mid-Holocene by the development of temperate deciduous forest mainly consisting of Quercus and Ulmus, and the late Holocene by the marked increase in Pinus abun dance and the development of temperate mixed conifer and deciduous forest.

花粉圖展示了東北地區(qū)植被演化的主要特征台湾乡下A片免费看。樺樹在全新世初期遍布從三江平原到遼東半島南端的東北東部地區(qū)国产麻豆视屏，在森林中占據(jù)絕對優(yōu)勢地位；榆屬和櫟屬等闊葉喬木在早中全新世的大部分時間內(nèi)是東部森林中的主要種類A一级毛片A一级黄片；在大約5kaBP以后久久免费影院，松屬在東北現(xiàn)在的森林地區(qū)開始增加毛片毛片一级毛片，云、冷杉屬也表現(xiàn)出較明顯擴大亚洲美女4p变态网站，中北部地區(qū)的森林覆蓋度可能比原來增大了114毛片。

According the difference of plant community in Daqinggou Nature Reserve, the environment was divided into 7 kinds of habitats, they are Fraxinus mandshurica plant community, Quercus mongolicus plant community, Ulmus macrocarpa plant community, conifer community, lakefront plant community, paddy field plant community and grassplot plant community in sandlot.

按照植物群落的不同將保護區(qū)內(nèi)的環(huán)境劃分為7種生境，分別為水曲柳植物群落a片网站在线看、蒙古櫟植物群落特级毛片A片全部免费网站、大果榆植物群落、針葉林植物群落国产一级免费啪啪、湖邊濕地植物群落国产一级A爱片在线视频、稻田植物群落和沙丘草地植物群落。

Microscopy is, of course, useful only when the substrate being investigated still contains lignified cell walls, but these techniques might be used with advantage to assess ligninolysis in relatively intact twigs or conifer needles.

顯微鏡只有在基片中仍含有木質(zhì)化細胞壁時有效人人操操操，但這種手段可以被用于對相對完整的樹枝或針葉進行木質(zhì)素降解研究日本AAA片视频。

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.

影響血雉棲息地選擇主要有下列因子：針闊葉混交林、海拔2400—2700米看久久久黄色精品视频、南坡和有大量林中空地及棲材的生境（其比例分別為49%久操美女在线视频、44%、44%视色网新域名、64%性刺激的欧美三级视频中文第一页、58%），食物主要是禾葉苔草情草视频在线；對灌叢黄色网站啊啊是视频在线免费看、針葉林、東坡也有一定的選擇天天操天天怕天天日天天。

The diversity index of broadleaved forest and bush, the evenness index of conifer forest and broadleaved forest,the dominance index of bare rock and farmland were higher than that in the other habitat types.

對5種不同生境類型的蝶類多樣性進行分析国产99r视频精品免费观看，物種多樣性指數(shù)最高的為落葉闊葉林和灌叢，均勻度指數(shù)最高的為針葉林和落葉闊葉林国内外激情视频在线播放，優(yōu)勢度最高的為裸巖和農(nóng)田黑丝美女被强奸网站。

The symbiotic association of the mycelium of a fungus with the roots of certain plants,such as conifer s,beeches,or orchids.

菌根真菌的菌絲體和某些植物，如松柏類狼友在线免费、山毛櫸或者石蘭的共同體

A dwarfed evergreen conifer or shrub shaped to have flat-topped asymmetrical branches and grown in a container .

一種矮的常青針葉樹或灌木99成年小黄片，有平冠的不對稱的枝，通常在一容器中生長国产一级A片免费网在线观看。