自然類群 的英文怎麼說

中文拼音 [zìránlèiqún]
自然類群 英文
natural group
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 然 : Ⅰ形容詞（對; 不錯） right; correct Ⅱ代詞（如此; 這樣; 那樣） so; like that Ⅲ連詞[書面語] （然而）...
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 自然 : 自然at ease; natural; free from affectation
  1. The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu

    另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。
  2. Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )

    2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地，通過多次現場采樣與室內實驗分析，測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分，並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗，初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。
  3. The autotrophic nitrifying bacteria play a critical role in nitrogen cycle in nature

    硝化細菌是一大類在自然界氮循環中起關鍵作用微生物菌群。
  4. The group which they delimit are called natural groups.

    由此劃分出的類群稱為自然類群。
  5. Studies by hargrave and geen estimated natural community graz - ing rates by measuring feeding rates of individual zooplankton species in the laboratory and then computing community grazing rates for field conditions using the known population density of grazers

    由哈格雷夫（ hargrave ）和吉恩（ geen ）所進行的研究，對自然條件下的群落食草比例進行了估計，其手段是通過測量出實驗室內單獨的浮遊動物種類的結食比例，然後利用已知的食草動物種群密度，計算出實地狀況下的群落食草比例。
  6. In the analysis of ecological relationship between vegetation and environment, we got 11 community types by combining twinspan with dca. the first axis of oca indicated the elevation level and heat gradient while the second axis indicated slope factor. the analysis shows that the resource of tourism in pangquan gully is abundant and the construction is rational

    第一軸基本上反映了各植物群落所在環境的海拔和熱量梯度，從左到右，海拔在體呈升高趨勢，熱量呈下降趨勢；第二軸基本反映了各植物群落所在的坡度梯度，從下到上呈良好的發展趨勢，從群落類型來看，各群落類型在排序圖上有規律地分佈，得出龐泉溝植被結構合理，分佈符合自然進化規律，龐泉溝生態旅遊資源未受到破壞，人為因素不明顯。
  7. Abstract : the aim of this paper is to study amenably natural order abundant semigroups. in this note, we establish structures of two classes of such semigroups

    文摘:本文研究可控自然序富足半群.文中給出兩類可控自然序富足半群的結構
  8. Daming mountain natural reserve is typical evergreen broadleaf monsoon forest area located on the tropic of cance in china. there are rich natural resources in this area, such as 1 836 plants, 49 wild mammals, over 65 birds, 11 fresh water fish and a lot of insects. some suggestions about the protection of biodiversity and sustained exploitation of resources were proposed

    大明山自然保護區是我國在北回歸線上保存下來的南熱帶季風常綠闊葉林區，通過對大明山自然保護區調查研究發現有高等植物1836種，野生哺乳動物有49種，鳥類超過65種，兩棲爬行類有13種，淡水魚類有11種，以及種類繁多的昆蟲.分析了植物資源及群落的多樣性，哺乳動物、鳥類、兩棲爬行類、魚類的分佈及現存狀況
  9. In may 2004, aggregation of swinhoes egret was found on the caiyu archipelagos along the southern coast of fujian province. based on the sighting records, school of life sciences of xiamen university and xiamen birdwatching society had organized a jointed research on the breeding ecology and conservation of swinhoes egret. the project was sponsored by the hsbc wetland management training programme and was done from may to december 2004

    2004年5月，在發現福建南部沿海的菜嶼列島上有黃嘴白鷺等水鳥集群以後，廈門大學生命科學學院資源鳥類學研究組和廈門觀鳥協會在世界自然香港基金會匯豐濕地管理資金的支援下，於2004年5月至2004年12月完成黃嘴白鷺繁殖生態與保護項目。
  10. Classification of environmental conditions. part 2 : environmental conditions appearing in nature. fauna and flora

    環境條件分類.第2部分:自然環境條件.第7節:動物群與植物群
  11. Classification of environmental conditions - environmental conditions appearing in nature - fauna and flora

    環境條件分類.第2部分:大自然呈現的環境條件.第7節:動物群和植物群
  12. Based on detailed community study on the natural vegetation of jiangwan airport abandoned 17 years ago, floristic composition and structure character of the communities have been analyzed, in addition, the restoration process and potential of the communities were also illuminated

    以市區內江灣機場失去管理后出現的自然植被為研究對象，通過群落學調查研究，分析了群落的種類組成以及結構特徵，闡明了群落的恢復過程和潛力。
  13. According to the sample area survey ; there are 120 species of plants belonging to 84 gener 47families in the 25 - year - old chinese fir plantation community which will succeed toward the direction simi - ler to the community type before the felling of evergreen broadleaved forest if it is let to develop naturally or the logging residues are not burnt after the felling of the chinese fir plantation due to the superiority of cas - tanopsis carlesii and schima superba in the aspling layer in it

    據樣地調查，該25年生杉木人工林群落的植物有41科84屬120種，群落的外貌特徵以包括藤本在內的高位芽占絕對優勢，葉特徵以革質，單葉，中小型葉為主，由於該群落的幼樹層以米儲和木荷等占優勢，若讓其自然發展或杉木林採伐后不煉山，並排除其它人為干擾，該群落將向與常綠闊葉林採伐前的群落類型相似的方向演替。
  14. The life - form spectrum, plant kinds, vertical structure and horizontal structure of oka nutural secondary forest in baotianman national reserve were preliminary analyzed, which has produced the more conjecture : the vertical distribution in the area is obvious ; the kinds of phanphytes plants in the community is the most ; the q. variabilis and q. variabilis are on predominance ground

    摘要對寶天曼自然保護區櫟類天然次生林群落的生活型譜、種類組成、垂直結構和水平結構進行了初步分析，並由此進一步推測：該地區植物群落垂直分佈較明顯；群落中高位芽植物最多，佔61 . 6 % ；栓皮櫟和銳齒櫟在群落中正處于優勢地位。
  15. In 0 - 200cm light dried layer was formed and can be recovered partly after rainfall, but beneath 200cm the serious perpetual dried layer has lower water content and larger thickness and is very difficult to be recovered in short period because of the special hydrological characteristics in the loess plateau where infiltration depth is about 200cm and could not percolate into deeper layer. ( 4 ) the landscape ecology in fuxian county shows that the two kinds of forest community have not declined

    （ 4 ）富縣天然山楊林和天然遼東櫟林的景觀生態特徵表明，兩類森林群落沒有出現衰退的跡象，這說明森林群落合理的內部結構不會造成林地土壤水分的嚴重虧缺，其自然氣候條件可以滿足森林群落生存、發展的需要。
  16. Numerical classification of the evergreen broadleaved forest community in castanopsis kawakamii nature reserve

    格氏栲自然保護區常綠闊葉林群落的數量分類
  17. This study deals with butterfly diversity and assessing endangered species in natural reserve of baishuijiang in gansu province. the research includes field investigation, observation at certain time and places, captive breeding in experimental area, capture - recapture etc. the biology of four important butterfly species is studied, especially focusing on the natural population life table, habitats, population structure and mobility of byasa impediens. the population developing trend and key factor that result population decline and fluctuation of troides aeacus and byasa impediens are analysed

    本文在甘肅白水江自然保護區碧峰溝通過野外調查、定點定時觀察、實驗地飼養、標記重捕等方法研究了碧峰溝的蝶類多樣性並進行了局部瀕危評估；研究了四種重要蝶類的生物學特性；對長尾麝鳳蝶的生境、自然種群生命表、種群結構、種群移動性進行了深入研究，並估測了各種種群參數，分析了種群發展趨勢。
  18. Investigation on dynamics of populatin of mites from varieties of citrus orchards of different areas in jiangxi

    江西不同品種柑桔園蟎類自然種群消長動態調查
  19. Comparative studies on life tablesof cotton bollworm helicoverpaarmigera in the different cottoncropping systems

    不同類型棉田棉鈴蟲自然種群生命表比較研究
  20. Middle - east of taihang mountain, is one of the richest regions of plants system in hebei province, not only has the abundant natural seed plants but also has the rich artificial vegetations, medicina l plants, flower plants, has many particular precious local plants and sole inheritance plants

    太行山中段東麓是河北省植被植物區系最為豐富的地區之一，不僅自然建群種植物豐富，而且人工植被、藥用植物、花卉植物種類也較為多樣，且具有多種孑遺植物、河北省特有的名貴植物。
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