選用群落 的英文怎麼說

中文拼音 [xuǎnyòngqún]
選用群落 英文
selected population
  • : Ⅰ動詞1. (挑選) select; choose; pick 2. (選舉) elect Ⅱ名詞(挑選出來編在一起的作品) selections; anthology
  • : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
  • : 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
  • : 落名詞[方言] (北方對蓮花落的俗稱) a kind of folk song
  • 選用 : select and use [apply]
  • 群落 : community; cenosis; coenosis; coenosium; duriherbosa; coen
  1. 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,擇了幾種重要的利方式,包括林地、果園、耕地、棄耕地和灌草坡,採野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利方式巖溶土壤肥力為重點,對不同土地利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及結構的調控管理提供依據。
  2. According to the environment features inside and outside caves in guizhou and current development of cave creature study home and abroad, making use of karstology, environment science, ecology, zoology and the theory of human - land relation, and through combining microscale with macroscale, component with system, field investigation with interview, and theory with experiment, the author chooses guiyang, anshun, pingba and honglin, where human activities are frequent and strong, to make a macroscopical investigation on animals and environment, and selects some typical caves in honglin to make a comparison study on environment features inside and outside the caves, biodiversity and present situation of plant society, and adaptability of cave animals to environment, and analyzes theoretically the effects of human activities on the cave animals and evaluates objectively the development potential of cave animal resource

    根據貴州喀斯特洞內外環境和國內外洞穴動物研究現狀,運喀斯特學、環境學、生態學、動物學以及人地關系等相關理論,採取點面結合,特殊與一般結合,系統與要素結合,實查與訪問結合,理論與實驗結合的方法,擇貴陽、安順、平壩、紅林等人類活動強度大的區域進行面上動物和環境的調查,擇紅林地區代表性的洞穴對洞內外環境、物種多樣性及現狀、動物對環境的適應等進行對比研究,理論分析人類活動對洞穴動物的影響和客觀評判人類活動的洞穴動物效應與動物開發潛力。
  3. Meanwhile, the study also shows that the diversity of studied cave animals is inversely proportional to human population density and water quality ; and bio - diversity, to some extent, is proportional to soil fertility and amount of chemical fertilizer, but inversely when excessive ; the correlativity between bio - diversity and vegetation cover rate is not obvious, when ground vegetation is strongly interfered by human being ; the amount of diestrammena marmorata is proportional to the d iversity of plant, and inversely proportional to soil fertility, and in a way, to water quality ; and the correlativity between community and water quality and soil fertility, and between water quality and the amount of mosquito and fly, is not as good as expected. the author points out that diestrammena marmorata, bat, mosquito, fly, oreolalaxrhohostig metus ( or cudata ), and fish can be chosen as in

    同時,研究還表明:調查洞穴的物種多樣性與人口密度、水質成負相關;在一定范圍內,物種多樣性與化肥施量、土壤肥力成正相關,超過一定的值則成負相關;在人類對地表植被的高強度作下,物種多樣性與植被覆蓋率的相關性不明顯;蚊蠅數量與土壤肥力基本上呈正相關;斑灶馬數量與植物種數呈正相關,斑灶馬數量與在一定水質范圍內與水質呈負相關,與土壤肥力呈負相關;數與水質和土壤肥力、蚊蠅數量與水質都不能表現較好的相關性;研究認為,可以擇斑灶馬、蝙蝠、蚊蠅、紅點囊蟾(或有尾類) 、魚類等作為指示動物對洞穴環境進行監測。
  4. In the meanwhile, the best community that was picked out from natural deciduous broad - leaved forest was taken as contrast. and the hight, dominance, soil fertility, coverage, composition and biomass of the community were used as community characteristics parameters to comprehensively evaluate the restored degree of communities at different restoration stages

    同時,在天然闊葉葉林中取一個最佳作為參照,運高度、顯著度、土壤肥力、蓋度、組成結構和生物量6個指標為特徵參數,對各個階段恢復的程度進行了綜合的評價。
  5. 3. study on vegetation succession : by using place to make succession, instead of using time, we have a useful try to hope to support helpful use for reference. on the other hand, we reveal actuality and stages of community succession of midland of taihang mountain to presume the succession direction in the future

    植被的演替研究:本文對空間代替時間的方法進行演替研究時,取樣地應遵循的原則進行了有益探索,以期對今後的研究提供有益借鑒,並且科學揭示了太行山中段地區的演替現狀和各的演替階段,對各演替階段今後的演替方向作出推測。
  6. Analyse the research of distributing of microbe community and the tendency of the change, disscuss the principle and traits of denaturing gradient gel electrophoresisand terminal restriction fragment length polymorphism, to research the law of change that the microbe community have in composting process, we can get effective and rapid information to filtrate the microorganism during composting process, then accelerate the development of compost technology

    摘要對堆肥微生物種分佈及其動態變化的研究進行了分析,論述了分子生物技術中的變性梯度凝膠電泳和末端標記限制性片段長度多態性的原理和特點,以及於研究堆肥微生物的結構演變規律,為分析和篩堆肥中的微生物提供更加有效、快速的信息,促進堆肥技術的發展。
  7. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題,尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的,但另外一些則有著嚴重的後果,會給入侵地的生物以至於整個生物造成影響.本文總結了分佈區擴張的常見模式,概述了它們對遺傳多樣性和種結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑,來揭示伴隨擴張擇和漂變在形成種遺傳樣式中的作.本文對日益增多的體遺傳學方法進行了總結,這些技術可以來在不同的時間尺度上推斷種規模所發生的巨大變化(瓶頸效應及種擴張) .最後,我們以歐洲櫟癭蜂(膜翅目,癭蜂科,癭蜂族)一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上,多態的等位酶位點上等位基因頻率的數據表明: 1 )遺傳多樣性沿入侵路線呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性中心的作; 2 )入侵地區的種與該物種原產地的種相比,遺傳上的分化更為強烈.這種種結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  8. The results shows that the community richness, species diversity indices and evenness of tree layer and shrub layer share the same order, of which is higher in pure limestone region than that of in pure dolomite region, but it reverse in herb layer ; the coefficient of similarity is considerably low between all plots, while species turnover rate is quite high among the plots and is higher in dolomite region than that of in limestone ; in different karst regions, karst processing leads to niches diversity characterized by special morphologies and special element geochamical features, and therefore affect the dynamic and features of plant communities

    我們在最有代表性之一的貴州茂蘭喀斯特森林保護區取純灰巖和純白雲巖兩種巖性的喀斯特環境,對其元素地球化學特徵及其中原生性植物的相異性和物種多樣性進行了對比,結果發現:不同巖性區域多樣性:喬木層和灌木層為純灰巖區純白雲巖區,草本層為純白雲巖區純灰巖區,總體上純灰巖區的高於純白雲巖區的;各樣地間的相似性系數都很低,相同巖性類型內的明顯高於不同巖性類型之間的相似度;物種周轉率高,且白雲巖區高於石灰巖區,種類組成差異明顯;喀斯特區可溶巖地球化學背景通過喀斯特作導致特殊的地形條件與元素地球化學特徵,並引起局部小生境的分異從而影響植物特徵。
  9. I studied the factors that influence avian community organization in zuojia narural protective reserve and dagang forestry center in jilin province during the period between april to july, 200land 2002 ( and combine part data that collected in the same area since 1996 ). the contents include : the relationship between habitat and avian community ; the resource utilizatin among avian community ; the role of community organiger in avian community ; the influnence of habitat fragmentation onavian community organization

    本人於2001年和2002年4 7月,在吉林省左家自然保護區和鎮賚縣大綱林場(結合本人1996年以來在左家地區的部分調查資料)對鳥類結構形成的因素進行了分析研究,研究內容包括:生境擇與鳥類形成的關系;鳥類中的資源利組織者在中的作;棲息地破碎化與鳥類結構的形成。
  10. It mainly refers that in the practical work, we are not prettily put cadres into mass for checking and training, especially the knowing - right participation - right - > selecting - right and the supervision - right of mass selecting and appointing cadres are not put into practice

    人程序封閉主要是指在實際工作中,沒有很好地把幹部放到眾中去鑒別和鍛煉,特別是眾在人上的知情權、參與權、擇權和監督權沒有得到很好的實。
  11. The ecological study of macrofauna was conducted on four typical sampling stations selected in the northern muddy bottom area of jiaozhou bay, estuary of dagu river, culturing and nearby area in hangdao in mar., jun., aug. and dec., 2002. abundance and biomass of macrofauna were investigated by quantitative study. the macrobenthic community structure and biodiversity were analyzed through multivariate statistic analysis

    本研究分別在膠州灣北部軟底區、大沽河口、黃島養殖區及養殖區鄰域取四個典型站位,於2002年3月、 6月、 8月和12月野外采樣,對大型底棲動物進行了定量研究,採多元統計方法分析了結構和生物多樣性,探討了底棲生物與環境因子的關系;豐度和生物量比較曲線法分析大型底棲生物對自然和人為擾動產生的響應。
  12. With this method of observation it very often happens that the observer, judging from the direction chosen by him, reckons as leaders those who, when the direction of the masses is changed, are not in front, but on one side, and even sometimes the hindmost

    使這種觀察方法就常常發生以下的情形:那個觀察者按照他所定的方向,把那些由於眾改變方向,不再走在前頭而走在一邊甚至有時把在後面的人當作帶頭的人。
  13. " restoration plan of wetland higher plant community in xuanwu lake " discusses the tenet and principle of the restoration of wetland higher plant community in xuanwu lake, collects the basis of choosing of the wetland higher plant communities from four angles, controlling pollution, landscape succession, beautifying environment, economic utilization. then on the basic of the environment characteristic of the xuanwu lake and the characteristic of the vegetative form and the distribution pattern of wetland plant community, we choose the suitable wetland plant population ; make the plan of the topographical reformation and wetland plant community construction

    「玄武湖濕地高等植物恢復規劃方案」討論了玄武湖濕地高等植物恢復的原理與原則,從治理污染、景觀演替、觀賞美化和經濟實的角度研究收集了植物擇依據,進而根據玄武湖濕地獨特的生態環境特點、濕地植物特殊的生活型及分佈方式,確定了適宜的濕地高等植物種,同時也確定了玄武湖濕地植物恢復試驗區湖底地形的改造方案、植物的配置和種植方式。
  14. The soil macro - arthropods were hand - sorted in the field. [ result ] a total of 2 357 soil macro - arthropods individuals was captured and fell into 5 classes, 9 orders and 70 families. [ conclusion ] the results suggest that the types of land use affect the species richness and abundance, and human activity has a significant impact on the soil macro - arthropods community

    取吉林省中部黑土區農田、居民點園地和「三北」防護林等典型農業土地利生境作為研究樣地,於2003年7月和9月分別進行大型土壤節肢動物調查,研究大型土壤節肢動物的組成與生態分佈。
  15. Compared with the studies on macrofauna in bohai sea and southern yellow sea, the macrobenthic abundance and biomass in jiaozhou bay were less than those of two seas. but the macrobenthic secondary production in jiaozhou bay was more than that of the bohai sea. using the sieves with 0. 5mm aperture mesh in sorting quantitative macrobenthic samples shows more advantages than that of using sieves with 1mm aperture mesh

    本研究同時使了1mm和0 . 5mm孔徑的網篩進行大型底棲動物的分,通過兩種孔徑網篩篩留大型底棲動物的種數、豐度和生物量比較,說明0 . 5mm孔徑的網篩對大型底棲動物分在種類和數量組成優於1mm孔徑網篩,使結構更完整,樣品代表性更高。
  16. For power control of listening users, forward power control method are introduced based on full, multichannel, filtered report, and collision method etc. the full report method has redundancy report information, and its real - time performance is bad, multichannel report is introduced to improve the real - time performance, and filtered report is introduced to eliminate the redundancy information, finally the collision method introduced can not only get higher real - time performance but also diminish the redundancy information ; 2. in order to meet the requirements of making the dynamic simulation of trunking group system, the ms ’ s random move equation is brought forward, the simulation of ms ’ s distribution is done and the integrated channel model are presented ; 3. the smart predicative model of power control is introduced to overcome the delay and track the change of the complicated network, with this model, the power control ‘ s performance is greatly improved

    全匯報方法存在冗餘的匯報信息,而且實時性較差,為了改善實時性提出了多通道的匯報方式,為了改善冗餘匯報而提出了篩法,最後介紹的碰撞法在減少冗餘信息的同時又提高了實時性;二、為了集功率控制動態模擬的需要,提出了移動臺的隨機運動方程,進行了有關移動臺的分佈模擬,建立了綜合的通道模型;三、希望克服延時和跟蹤復雜網路環境變化,提出了功率控制的智能預測模型,通過智能預測模型可以改善功率控制的性能,著重介紹了採神經網路的方法實現智能預測的通模型,從而跟蹤復雜多變的無線環境,諸如慢衰及快衰(包括多徑衰、多普勒效應所引起的衰)等網路特徵,達到預測功率需求;四、採二級正交碼和智能天線(空分多址)的方法進行組內戶的識別,改進功率控制效果;五、話權戶的前向和反向功率控制方法;六、對引入gota的cdma系統提出了復合容量表示方法,並作容量分析,探討有關gota系統的qos問題。
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