種群生物量 的英文怎麼說

中文拼音 [zhǒngqúnshēngwùliáng]
種群生物量 英文
population biomass
  • 種 : 種名詞（姓氏） a surname
  • 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
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 生物 : living things; living beings; organisms; bios （pl bioi bioses）; biont; thing; life生物材料 biol...
  1. Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us

    本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。
  2. The method of modified simplex was applied to optimize the models, and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form. taxus chinensis var. mairei population, and the highest growth rate of basal area was the tenth age class, namely the phase when breast diameter was 68 ~ 76 cm

    以胸高斷面積代替種群生物量，分別採用logistic常規模型及劉金福提出的logistic改進模型對南方紅豆杉種群的增長動態進行研究，運用改進單純形法對模型進行優化，擬合結果表明改進模型比logistic常規模型更符合南方紅豆杉種群的增長趨勢，南方紅豆杉種群的最大增長速度出現在第10齡級，即胸徑為68 76cm時期。
  3. The tiller - nodes of 6 species of rhizome grass, including leymus chinensis, hemarthriajaponica, arundinella hirta, calamagrostis epigeios, c. rigidula, hordeum brevisubulatum in songnen plain, can live at best for 2 to 5 years, and do 2 to 4 propagating generations which is the same as the age class of tiller in number. the age structure of population is an increasing model which the young tiller is more than the old at quantity and biomass. during the whole growing season, the age spectrum varies for each species

    松嫩平原，羊草、牛鞭草、野古草、拂子茅、硬拂子茅和野大麥等6種根莖型禾草種群的分蘗節最多可以存活2 5個年度，可以進行營養繁殖2 4個世代，分蘗株的齡級數與分蘗節營養繁殖的世代數相同，在種群分蘗株的數量和生物量上，生長季的各個時期均以幼齡分蘗株占較大比例，呈現為明顯的增長型年齡結構，各種類的年齡譜組成各異。
  4. This investigation of the two species is mainly dealing with their morphological characters, population biology, pollination biology and molecular biology, based on the following methods such as section slides, sem, artificial pollination, rapd analysis and gravity glass slides. this study is intended to demonstrate the distribution patterns of the populations for the two species, the numerical and spatial characteristics of ecological difference, the biological characters of seeds, pollination mode and reproductive stratigies, and molecular genetics. in light of the results from this study, the reasons that resulted in the present dangerous situation for the two species were discussed, and the suggestions for protecting them were proposed

    本研究以種群為單位，採用石蠟切片、掃描電鏡、重力玻片、人工授粉、 rapd分析等方法，對兩種植物的形態生物學、種群生物學、繁殖生物學和分子生物學等方面進行了詳細研究，以揭示它們的種群分佈類型及成因、種群生態環境差異的數量特徵和空間特徵、種子生物學特徵、傳粉和生殖策略以及種群分子遺傳特徵，進而探討兩物種瀕危的成因和機制，並針對性地提出了科學合理的保護對策和建議。
  5. The density with the biodiversity increasing shows " m " model. ( 3 ) the correlation analysis shows : elevation, slope, development stage and biomass are main factors which affect the biodiversity pattern in the research region. the biodiversity of the quercus aliena var. acutesrata community shows the patterns with the elevation and slope affecting : on sunny slope, the species diversity increases with the elevation increasing below the attitude of 1640m and its climax is at this attitude ( the diversity index h = 1. 68 ), upward this point, the diversity index descends slowly. the evenness shows ascend trend with the elevation upward, its climax point at 1800m ( the evenness index jsw = 0. 78 ), then descending after this point

    （ 5 ）通過分析，銳齒棟群落生物量與生物多樣性呈現如下關系:在海拔1500一170枷范圍內，銳齒棟群落生物量與物種多樣性之間呈單峰曲線關系;在海拔1700一1900m范圍內，生物量與物種多樣性之間呈不明顯的波動關系;在海拔1900一2100m范圍內，生物量隨物種多樣性的增加而增大，通過對不同高程內生物量與物種多樣性分析發現，隨著海拔的上升，最大生物量對應的物種多樣性略有增加趨勢;在相同海拔和坡向條件下，生物量與物種多樣性之間也呈典型的單峰曲線關系;群落凈生產力與物種多樣性之間總體上也呈單峰曲線關系。
  6. V ) occupying space and covering ground should be served as the main strategy in early stage of vegetation restoration, which would enable the community coverage to rehabilitate rapidly. in mid - stage, due to the change of light environment and the species substitution, component adjustment should be chose as the main strategy

    5 ）植被恢復的策略是早期階段以搶占空間、覆蓋地面的對策為主，群落蓋度恢復很快;中期階段，林內光照環境改變，物種替代，恢復對策以物種組成成分的調整為主;後期則是生物量積累與組成結構調整並重。
  7. Pyramid of biomass a type of ecological pyramid based on the total amount of living material at each trophic level in the community, which is normally measured by total dry weight or calorific value per unit area or volume, and shown diagrammatically

    生物量金字塔：指基於群落每個營養水平上有生命的物質總量的一種生態金字塔類型，通常通過總干重或者每單位面積或體積的生熱量值來衡量，並用圖表表示出來。
  8. Results demonstrate that with the succession going on from herbosa shrubs coniferous forest theropencedrymion evergreen broad - leaved forest, abundance and diversity index of species, biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax

    結果表明：隨著草叢灌叢針葉林針闊混交林次生常綠闊葉林正向演替的進行，在未形成成熟而穩定的頂極群落之前，物種豐富度、物種多樣性指數、植被生物量及生產力都呈增大趨勢。
  9. The system could move forwards at the speed of 1 m / a or the patches shifted their sites each other, which led to the clone population and maintained its stable state in even large area

    同時，林緣擴散種群具有密度大、生產力高等特徵，但其生物量積累和自然稀疏過程與有性植物種群具有相同的規律。
  10. Studies on population ecology showed that d. versipellis is able to grow on the hillsides of subtropical broadleaf or acicularleaf secondary forest where soil is fertile and the content of n, p, k is high and the ph is 5. 49 - 6. 59

    種群生態研究表明八角蓮適宜生長的土壤為中性偏酸（ ph5 . 49 6 . 59 ） 、有機質含量為7 . 34 33 . 33和n 、 p 、 k養分含量高的黃棕壤；其生長環境的植被為亞熱帶針葉混交林，伴生植物多為當地優勢種。
  11. The grazing of david ' s deer to p. virdis ( l. ) beauv. varied between different seasons, greatly producing differences of the proportion and biomass of plant communities accordingly

    麋鹿對狼尾草的取食具有季節選擇性的特點，這很大程度上影響了目前棲息地的植物群落組成結構及各種植物的生物量比例隨季節的變化。
  12. The paper investigated the monthly biomass dynamics of grass layer of different plant communities in dafeng national david ' s deer nature reserve, which increased from may to september, the percentages of pennisetum virdis ( l. ) beauv. biomass were from 61. 15 % to 85. 57 % during may to september

    摘要測定了大豐國家級麋鹿保護區圈養區內不同類型植物群落草本層總生物量隨月份變化動態，結果表明，植物群落的總生物量從5月份至9月份呈增加趨勢，其中狼尾草種群生物量占總生物量的比例從5月份的61 . 15 %增加到9月份的85 . 57 % 。
  13. In jinyun, beibei, chongqing. with the helps of various statistical analyses we studied the composition, species diversity and liaison between species in the communities in which s. tsinyunensis distributed, as well as the niche, distribution pattern, modular structure of the populations. the result shows as folio wings : there are 78 species of 70 genera in 47 families of higher plants in the communities in which s. tsinyunensis distributed

    本文運用植物群落學、種群生態學及多種數量統計分析方法，對縉雲黃芩全分佈區的群落組成、物種多樣性、物種間聯結性、種群生態位、種群分佈格局及構件種群進行了研究，結果如下： 1 ）縉雲黃芩種群分佈的群落中有高等植物78種，分屬47科70屬。
  14. Of the species, . characters of ecology, reproductive biology, genetic diversity, population genetic structure, endangering mechanisms, and sampling strategy have been studied in view of conservation biology. the results may be summarized as follows : by field investigation, we found that the localities recorded for four specimens of d. versipellis and d. pleiantha had disappeared, and most of the present populations are located in protected subforests. the distributional range of d. versipellis has also been reduced greatly, evidently, the number of present populations has decreased, the resources are reduced sharply, and the species are clearly endangered

    從保育生物學的角度，對八角蓮種群生態學和生物學特性、遺傳多樣性水平和遺傳結構、瀕危機制及保育取樣策略進行了研究，結果如下：通過野外調查發現，原標本記載的一些八角蓮和六角蓮種群已難以找到，該類群目前多分佈於自然保護區外圍次生林地帶，分佈范圍明顯縮小，現存群體的規模也明顯減少，資源量貧乏，物種處于瀕危狀況。
  15. Both have been on the verge of extinction due to poaching and habitat fragmentation. in order to enlarge the population size and recover the wild populations, ex situ conservation strategy has been advocated by the governing agents in china through natural or artificial breeding in captivity

    為了拯救此二物種，我國政府主管部門相繼制定了人工易地保護的物種保護策略，以期通過人工圈養條件下的自然繁殖和人工繁殖，達到增加種群的數量，促進野生種群恢復之目的。
  16. In a survey aiming at making clear of the environmental conditions of plants in the as - contaminated areas in hunan province, it is found that as - contamination has caused a marked decrease in plant species and reduction in biomass of the plants grown there. moreever, there is higher than 54 % of cultivated vegetables with as content beyond the critical value of safety for food

    本研究首先調查了湖南砷污染區的植物生長環境，發現砷污染已導致植物種類減少，群體生物量下降；污染區栽培的蔬菜有54砷含量超標，其中菠菜、茼蒿和萵筍等超過最大許可量（ mpc ）的5倍左右。
  17. It was found that high transplantation efficiency and stable production can be achieved by improving egg fertilization, and egg stocking pattern, by high density of fertilized eggs, and by fertilization and feeding

    結果表明，通過控制受精卵的質量，選擇適宜的投卵方式，保持比較高的受精卵投放密度，並在形成較大種群時進行施肥，增加餌料生物量等方法，可提高移植增殖效果，獲得持續穩定的高產。
  18. As a case study, the responses of leymus chinensis steppe of songnen plain in northeast of china to human being activity ( light grazing, middle grazing, heavy grazing and overgrazing ) were discussed based on the field observed data

    結果表明，隨著放牧強度的增加，羊草草原的植被蓋度和生物量隨之降低，優勢羊草群落將逐漸被鹽生植物所替代，群落結構趨于簡化，物種向旱生化和鹽生化演替。
  19. Based on the enviroment of the nandagang wetland, combining the outside investigation and inside analysis, adopting the mathematical analysis methods such as the principal component analysis ( pca ), regression analysis, correlation analysis etc. the type of wetland ecosystem, the flora of the wetland plant, the type, the function, the formation and succession and the outside influencial factors of the vegetation, the ecological conditions and biomass of the reed population are all studied. the main results can be concluded as follows : 1 ) the nandagang wetland is a freshwater one close to the bohai sea. its ecosystem can be divided into two parts : natural ecosystem and semi - artificial ecosystem

    本研究從南大港濕地的實際環境出發，採用樣方調查的方法，以外業調查和內業分析相結合、野外採集測量與實驗室分析處理相結合、定性描述與定量分析相結合為根本研究路線，應用主分量分析（ pca ） 、回歸分析、相關分析等數學分析手段，對南大港濕地生態系統的類型、濕地植物的區系組成、濕地植被類型、植被的功能、植被的形成和演替、植被的外界影響因素、濕地蘆葦種群的生態條件和種群生物量等方面進行了較深入的研究，主要研究結果如下： 1 ）南大港濕地是濱海瀉湖型淡水濕地。
  20. Seed collection should begin when seed on the most top of the spike sloughing, and go on for 3 days. biology population of this plant was research on clone and modular level, mainly discussed how density affect the population size and biomass, as well as the " - 3 / 2 self thinning " and the primary productions under different densities

    從無性系構件和個體水平上進行了野大麥種群生物學方面的研究。主要討論了密度對種群數量和生物量的影響，對「 - 3 2 」自疏法則進行了討論，並從草地生產角度比較了不同密度種植區的草地凈第一性生產力。
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