larix 中文意思是什麼

Results showed that the 33 sporophores of t. terreum collected from larix principis - rupprechtii stand belonged to distinct genotypes based on the analysis of rapd markers. the genet size of this species was small and no larger than 0. 5 m

對33個棕灰口蘑子實體的rapd分析表明：每一個子實體屬于不同的基因型，該種群形成數量多的小基因型，即基因型不大於0 . 5m 。

The investigation on the species and amount of the pest in burned forest in heihe area showed the plantation of pinus slyuestris var. mongolica and larix gmelinii were easily attracted by ips spp. and anoplophora spp. the relationship between the smoked height and diameter at breast height of poles and the occurrence of the pests was analyzed with binary logistic regression

摘要文章通過對黑河地區過火林地的蟲害發生數量和種類的調查研究，表明樟子松和落葉松人工林在火燒后極易受到小蠹類和天牛類蛀干害蟲的攻擊。

Due to different exploitation intensity and ecological restoration measures used in hongchiba region, wuxi county, the vegetation have been formed a series of succession stages, i. e. herbaceous stage scrub - shrub stage - shrub - tree stage - pure larix daempferi conifer forest stage - pinus armandii needle broad - leaved mixed forest stage - natural deciduous broad - leaved forest

巫溪縣紅池壩地區由於歷史上開發強度和生態恢復措施的不同，使當地植被形成了從草本群落灌木灌叢林灌過渡帶日本落葉松（ larixdaempferi ）針葉純林華山松（ pinusarmandii ）針闊葉混交林天然闊葉落葉林的一系列生態恢復演替階段。

This paper investigated the fungus flora of 8 main tree species, which are pinus tabulaeformis, larix principis - rupprechtii mayr, betula platyphylla suk, ostryopsis davidiana decne, ulmus pumila l., quercus liaotungensis koidz, populus davidiana dode, prunus ansu, in daqingshan mountain

大青山地區環境惡劣、植被破壞嚴重，利用菌根生物技術實現植被恢復是一個重要方向。本文對大青山8個主要樹種，即：油松、落葉松、白樺、虎榛子、榆樹、遼東櫟、山杏菌根資源及生態進行了調查。

Mongolica young stand, secondary natural forest, and the mixed forest of larix olgensis and fraxinus mandshurica rupr. countermeasures for controlling soil degradation were also recommended. the study got following results : ( 1 ) from young stand to mid - age of larix olgensis, with the closure of canopy and the decrease of undergrowth vegetation cover, soil acidity, enzyme activity, total inorganic phosphorus, available k, soil moisture and total porosity decreased significantly ; while soil organic matter content, humus component content, the amount of three main types of microbes, acid phosphatase activity, and bulk density in rhizosphere soil and non - rhizosphere soil increased with the increase of the amount of forest floor litter ; from mid - age stand to near mature stand, with the decrease of stand density and crown cover as well as the restoration of undergrowth vegetation after preliminary thinning, soil organic matter content, fulvic acid, exchangeable acidity, exchangeable aluminium, neutral phosphatase activity, total amount of inorganic phosphorus, the amount of actinomycetes, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil apparently increased ; from near matu re stand to mature stand, soil activity acidity, organic matter content, humus component content, available phosphorus, total amount of amino acid, available k, soil enzyme activity, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil decreased, but total phosphorus, soil acidity ( in particular, exchangeable aluminium ), and bulk density increased

結果表明： （ 1 ）從落葉松幼齡林到中齡林，隨著林冠的郁閉和林下植被蓋度的急劇下降，林地土壤酸度、土壤酶活性、無機磷總量、速效鉀、土壤水分含量、總孔隙度呈明顯下降趨勢，而根際和非根際土壤有機質含量、腐殖質各組分含量、三大類微生物數量、酸性磷酸酶活性和土壤容重隨著凋落物的增加呈明顯上升趨勢；從中齡林到近熟林，由於撫育間伐，林分密度及郁閉度下降，林下植被蓋度逐步得到恢復，根際與非根際土壤有機質含量、富里酸、交換性酸、交換性鋁、中性磷酸酶、無機磷總量、放線菌數量、土壤水分含量、總孔隙度呈明顯的上升趨勢；從近熟林到成熟林，隨著林齡的增大，根際與非根際土壤活性酸、有機質含量、腐殖質各組分含量、有效磷含量、氨基酸總量、速效鉀、土壤酶的活性、土壤水分含量和總孔隙度呈下降趨勢，而根際與非根際土壤全磷含量、土壤酸度（特別是交換性鋁）和容重呈增加趨勢。

Cultivation and afforestation techniques of mycorrizal seedlings of larix kaempferi

落葉松菌根苗培育及造林技術

The study has investigated and compared soil physical, chemical, biochemical properties of eight stands on paired sites in mountainous regions of northeastern china, trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity. the eight stands are 4 first rotation of larix olgensis plantations with different age classes, the second rotation of larix olgensis young stand, pinus sylvestris var

本文通過固定和典型樣地，對東北山地不同生長發育階段落葉松人工林和二代落葉松幼齡林以及與二代落葉松幼齡林同一塊林地的樟子松幼齡林、天然次生林、落葉松水曲柳混交林等8個林型土壤質量進行了對比與分析，深入探討了落葉松人工林土壤質量降低的機理和不同發育階段土壤質量變化規律以及與森林生產力變化的關系，並提出了林地土壤質量調控措施。

Density structure and growth dynamics of larix principis - rupprechtii stand for water resource conservation in wutai mountain region in shanxi province

五臺山華北落葉松水源涵養林密度結構與生長動態

Forestland evapotranspiration and water balance of picea asperata mast. and larix gmeini rupr mixed stand

青海雲杉和華北落葉松混交林林地蒸散和水量平衡研究

Thoughts on the natural regeneration of larix gmelinii rupr

對興安落葉松天然更新的思考

Seed zones of chinese forest trees - seed zones of larix gmelini rupr

中國林木種子區興安落葉松種子區

Study on biomass and productivity of larix kaempferi plantation

日本落葉松人工林生物量及生產力的研究

Larix olgensis is main afforestation species in the northeastern china

落葉松（ larixolgensis ）是我國東北地區主要的造林樹種。

( 3 ) compared to young stand of the first rotation of larix olgensis, activity acidity ( ph value ), organic matter content, humus component content, moisture, and total porosity in rhizosphere soil of the young stand of the second rotation of larix olgensis decreased

（ 3 ）二代落葉松幼齡林與一代落葉松幼齡林相比，根際土壤活性酸（ ph值） 、有機質含量、腐殖質組成、土壤水分含量和總孔隙度降低。

Fast growing and high yield plantation of olga bay larch larix olgensis and dahurian larch larix gmelini

長白落葉松興安落葉松速生豐產林

Mongolica, soil acidity, humus component content, available k, total p, organic p, inorganic p, enzyme activity, and microbe amount of young stand olgensis of the second rotation of larix olgensis in non - rhizosphere soil also

不同發育階段影響林木生長量的主要養分因子是土壤有機質、速效鉀、水解氮以及土壤磷形態的全磷、有機磷、無機磷總量、有效磷、 ca一p和fe一p 。

( 2 ) compared to secondary natural forest, the amount of three main types of microbes in rhizosphere soil of different age of larix olgensis plantation correspondingly decreased largely, enzyme activity in non - rhizosphere soil reduced, the biochemical activities abated, and soil physical and chemical properties deteriorated

（ 2 ）與天然次生林相比，落葉松人工林不同發育階段根際土壤三大類微生物數量均相應地有較大幅度的降低，非根際土壤酶活性減弱，土壤生化作用強度降低，土壤理化性質變壞。

The estimate of fine root biomass in upper soil layer of larix olgensis plantation by geostatistics method

採用地統計學方法對落葉松人工純林表層細根生物量的估計

Macroporous adsorptive resin column and polyamide column were used respectively to purify arabinogalactan ( ag ) from larix gmeini rupr. the contents of impurity in ag and sugar varying with time were analyzed

摘要分別採用大孔吸附樹脂柱層析和聚酰胺柱層析技術純化興安落葉松中的阿拉伯半乳聚糖，研究了兩種層析柱洗脫過程中的雜質含量、糖含量隨時間變化的情況，對比分析了它們對阿拉伯半乳聚糖的純化效果。

Studies on the ecological characteristics of larix principis - rupprechtii plantations in the steppe of inner mongolia

內蒙古草原華北落葉松人工林生態特性研究