真土壤 的英文怎麼說
中文拼音 [zhēntǔrǎng]
真土壤
英文
solum-
The results showed in the paddy field the bacteria were predominated, in the dry land the proportion of fungi and actinomyces was distinctly higher than the other two kinds of soil, in the woodland abundant species of basidiomycetes were found ; the natural degradation speed was low, with the degradation the number and composition of microorganisms changed regularly ; when the c / n ratio was adjusted to 25 " ? 1, the degradation remnant ratio reduced 10. 67 % than the control
結果表明,水田以細菌為主,旱地中真菌和放線菌數量最多,林地中有大量的高等擔子菌;秸稈自然降解較慢,土壤微生物也隨著降解的進行而呈現一定的變化規律;當調節c / n比為25 : 1時,秸稈的腐解殘留率比對照組下降10 . 67 。 2The rhizosphere microflora dynamics of bacteria, actinomyces, fungi and four bacterial physiological groups of kentucky bluegrass under different quality of illumination were studied by adopting selective culture medium to explain scientifically response regular of this grass to different illumination condition
摘要研究了草地早熟禾在不同光照條件下其根際與非根際細菌、真菌、放線菌以及氨化細菌、硝化細菌、好氣性纖維素分解菌、固氮菌生理類群的區系動態變化,擬從根際土壤微生物數量變化方面來闡述草地早熟禾對不同光照條件的響應規律。They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。1. ecological effects of long - term organophasphate pesticides contamination on soil microflora the long - term effects of organophosphate pesticides contamination on soil microflora were investigated in the present study. little difference in total counts of bacteria, actinomycetes and fungi was observed between the contaminated and the non - contaminated soil. compared with the control there were a slight decrease in total counts of free - living nitrogen - fixer and denitrifying bacteria and a significant increase in those of ammonifying and ammonia - oxidizing and nitrifying _ bacteria in the methylparathion contaminated soil
一、甲基對硫磷長期污染對土壤微生物的生態學效應研究了有機磷農藥甲基對硫磷長期污染對土壤微生物的影響,實驗表明:土壤細菌、放線菌、真菌總的數量影響不大;自生固氮菌和反硝化細菌數量減少;氨化細菌、亞硝化細菌、硝化細菌的數量在污染土壤中卻有所增加;與對照土壤相比,污染土壤呼吸作用下降了29 . 93 ;氨化作用和硝化作用強度得到增強。We mensurate the number of the primary soil microbes such as bacteria, fungi and azotobacter with diluting flat technique, and mensurate the number of cellulose decomposing bacteria with mpn technique, and mensurate the biological quantity of the soil microbes with the technique of chloroform suffocating - inundation culture - colour - compared
本文以長期壟作免耕試驗田為研究對象,採用稀釋平板計數法測定了土壤中主要的微生物細菌、真菌、自生固氮菌數量,用mpn (最大或然值法)測定纖維素分解菌的數量,採用氯仿熏蒸?淹水培養?納氏比色法測定微生物生物量。Bacteria and fungi are other important soil organisms.
細菌和真菌是另一類重要的土壤有機體。The site had been inoculated with soil containing suitable mycorrhizal fungi.
在生境中用帶有合適菌根真菌的土壤接種。Some form symbiotic associations with algae or cyanobacteria to form lichens, while others form extremely important mycorrhizae with the roots of many plants, including most forest trees
真菌是土壤和淡水中主要的分解者,一些與藻類或藍細菌共生形成地衣,還有一些真菌與許多植物包括大多數林木的根形成大量的菌根。Fungi form mycorrhizae in plant roots and the hyphae take in carbon from plants through their epidermal cells and move mineral nutrients and water from soil to their epidermal cells ; this symbiosis is of high importance in studying biodiversity conservation, the origins and evolution of terrestrial plant, the rehabilitation and reconstruction of degenerated ecosystems, agriculture, horticulture and forestry
真菌在植物根系形成菌根后,菌絲通過根的皮層細胞獲取植物提供的碳源,同時將礦物營養和水從土壤轉運到皮層細胞,這種共生過程的研究在生物多樣性的保護、陸生植物的起源與演化、退化生態系統的修復與重建以及農業、林業和園藝業的應用具有重要的意義。This is the first repot of amf pure isolate seprated in chinese heavy metal contaminated soil. 2
這是我國首次從重金屬污染區土壤中分離到叢枝菌根真菌純種並在國際上報道。Wood preservatives. determination of the effectiveness against soft rotting micro - fungi and other soil inhabiting micro - organisms
木材防腐劑.抗微真菌軟腐蝕和其他土壤中微生物效果的測定Soil quality - inhibition of reproduction of collembola folsomia candida by soil pollutants iso 11267 : 1999
土質.土壤污染造成彈尾目真菌復制的抑制In the present study, a compartment cultivation system and histochemical staining were used to investigate the influence of soil available p level, plant p status and soil organic p on the growth and metabolic activity of am fungi. differences in metabolic activity among am fungal isolates and the relationship between metabolic activity and mycorrhizal effectiveness were al so investigated. in addition, am fungi from a wide range of environmental conditions ( originally isolated from north, central and south china ) were used to study the ecological adaptability of am fungi and the influence of edaphic conditions on am fungal growth and metabolic activity
本研究採用分室根箱、組織化學等手段研究了土壤施磷水平、植物磷營養狀況、土壤有機磷對am真菌生長和代謝活性的影響;不同am真菌的代謝活性及其與菌根效應之間的關系,並對我國華北、華中和華南地區篩選出的高效菌株進行了生態適應性的比較,以期在理論上闡述宿主植物生長狀況及土壤條件對菌根真菌生長和代謝活性的調控機制,篩選出具有廣泛生態適應性的am菌株。( am ) fungi exhibit low host specificity and form mutualistic associations with a wide range of host plant species over a wide range of environmental conditions. some characteristics of am fungi, including hyphal growth, distribution and metabolic activity, are closely related to mycorrhizal efficiency and to ecological function of am fungi, and may be influenced by host plant and soil conditions
叢枝菌根共生體由宿主植物和真菌共同組成,菌根真菌的生長、代謝活性、菌絲分佈以及生態適應性等特徵不但與菌根效應、菌根真菌的生態功能密切相關,而且受到宿主植物和土壤條件的影響。The growth of extraradical hyphae and hyphal density in soil were decreased significantly at high p level, however the growth of am fungus stimulated by moderate p supplied into soil ( 50 mg - kg - 1 )
高磷水平下, am真菌的菌物生長量和土壤中的根外菌絲密度明顯減少,而適當施磷( 50mg ? kg ~ ( - 1 ) )對am真菌的生長有刺激作用。The results showed that quantity of bacterium and four bacterial physiology groups was positively correlated with quality of illumination ; their quantity showed a reduced tendency with the reducing of the illumination condition, but quantity of fungi was negatively correlated, it was increased gradually with the reducing of the illumination condition ; rhizosphere soil of kentucky bluegrass turned into fungi type from bacterium type ; the rhizosphere effect of various bacterial physiological group of kentucky bluegrass is obvious under different quality of illumination
結果表明,草地早熟禾根際細菌及四類細菌生理群數量與光照條件呈正相關,隨著光照條件的減弱,其數量呈降低趨勢;根際放線菌數量隨光照的減弱呈先下降後上升的趨勢;而真菌數量與光照條件呈負相關,隨著光照條件的減弱,根際真菌的數量逐漸增加;草地早熟禾根際土壤由「細菌型」向「真菌型」轉化;不同光照條件下,根際各微生物類群都表現出明顯的根際效應。Simulated soil is used instead as it is too costly to use actual lunar soil at this stage
由於真正的月球土壤太昂貴,在這階段不宜作研究之用。In a proof of principle, the team used a lens to focus sunlight into a tiny vacuum chamber and heated 10 grams of simulated lunar soil to about 2, 500
為了驗證這個原理,卡迪夫和組員利用透鏡將陽光聚焦到細小的真空室,把十克模擬月球土壤加熱至約攝氏2 , 500度。Arbuscular mycorrhiza can improve the ability of resisting drought from several aspects : hyphal enhances plants ' chances of absorbing water from soil ; it can improve plants ' phosphorus and another minerals ' nutrition, increase the content of chlorophyll ; observably enhance transpiration and stoma conduction ; reduce the flow of water, permanent languish point, stoma resistance ; change the balance of hormone, promote accumulation plant proline and capability of nitric reductive enzyme
叢枝菌根真菌可以通過以下幾個方面增強植物抗旱性:通過菌絲增加植物對土壤水分的吸收;改善植物的磷營養及其他礦質元素營養;能顯著提高蒸騰速率和氣孔導度;乾旱條件下降低植株葉片水勢、永久凋萎點、葉片飽和虧、氣孔阻力和恢復時間;改變激素平衡。24 samples including matsutake basidiocarps and different origin isolates were analyzed with rapd fingerprinting comparison using 17 arbitrary decamer nucleotide primers. the results showed that all slow - growing mycelia isolated from lamellae have the same dna fingerprinting
試驗還對松茸菌根、帶菌絲土壤進行了分離,結果很容易獲得各種快生型的絲狀真菌,因此認為菌根、土壤並不適合分離鬆口蘑菌絲體。分享友人