红桦

红桦组织细胞束缚水含量较高、持水力较强，主要以延迟脱水的方式抵御干旱；

The bound water content , water-possessing ability of Betula albosinensis is higher , and resisting drought by delaying dehydrate .

CO2浓度和温度升高对红桦根际微生物的影响

Effects of elevated atmospheric CO_2 concentration and increased temperature on Betula albo-sinensis rhizospheric microbe

红桦幼苗干物质分配与营养对CO2升高的响应

Response of dry matter allocation and nutrition of red birch ( Betula albosinensis ) seedlings to elevated CO_2

不同密度红桦幼苗苗冠结构与竞争对CO2浓度升高的响应

Responses of crown architecture and competition of birch seedlings ( Betula albosinensis ) to enriched CO_2 under different planting densities

采用控制环境生长室研究了2个密度水平下CO2浓度升高对红桦幼苗干物质分配与营养的影响，并分析了红桦干物质分配与养分浓度的关系。

The effects of elevated CO2 concentration on dry matter allocation and nutrient contents of red birch seedlings were studied under two planting densities in controlled environment chambers .

m-2两个密度水平。结果表明，升高CO2浓度可促进红桦幼苗生物量的增加，但对根冠比没有显著影响。

The results showed that red birch biomass was stimulated by CO2 enrichment , while the root to shoot ratio was not affected .

在侵染后期，AMF主要以泡囊的形式侵染红桦根系；

In the late of colonizing , AMF mostly uses the form of vesicle to colonize rootlet of Betula albo-sinensis .

研究了高（HD）、低（LD）两个种植密度下红桦幼苗的树皮和去皮树干特征对CO2升高的响应。

The response of wood / bark properties of red birch seedlings to elevated CO2 ( EC ) under low ( LD ) and high density ( HD ) were investigated in closed top fumigation chambers ( CTC ) .

4增强UV-B辐射处理降低了两种幼苗UV-B吸收物质含量和类胡萝卜素含量，增加青榨槭表皮层厚度和红桦栅栏组织厚度。

The enhanced UV-B radiation reduced the epidermis thickness of Acer davidii and palisade tissue thickness of Betula albo-sinensis . Contrary to what was expected , enhanced UV-B radiation decreased the carotenoid UV-absorbing compound content in leaves of both species suggesting a reduction in protection provided .

秦岭南坡青杄林、青杄华山松红桦混交林林地土壤特性研究

Soil Properties of Picea wilsonii Forest and Mixed Forest of Picea wilsonii-Pinus armandi-Betula albo-sinensis on South-facing Slope of the Qinling Mountains

未来一段时间内，先锋种群红桦将处于生长优势地位，但从长远看，仍需要人工辅助更新。

In a period of future time , B.albo-sinensis would still be dominant , but from a long-term view , it was necessary to take some artificial measures to improve the regeneration of B.albo-sinensis .

在中山针阔混交林群落与巴山冷杉和落叶松群落、红桦-牛皮桦-巴山冷杉群落之间，物种多样性指数、群落均匀度指数和物种丰富度呈下降趋势。

But from mixed coniferous and broad_leaved forest communities to alpine coniferous forest communities and alpine meadow communities , the Shannon_Wiener 's diversity index , Pielou 's evenness index and species richness presented an decreasing trend .