population index 中文意思是什麼

population index 解釋
人口索引
  • population : n. 1. 人口;人口總數;全體居民;人口的聚居。2. 物的全體[總數];【生物學】蟲口;種群(量);群體;族,組,個數;【統計學】對象總體,全域。3. 【物理學】布居;密度。4. 〈罕用語〉殖民。
  • index : n (pl es dices )1 索引。2 指標,標準,標志。3 示[食]指 (=index finger)。4 指數。5 【印刷】指...
  1. In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”

    由於人類活動干擾強度加大,公路效應深度不斷擴展, 1976年為5km , 1988年為7km , 2003年達到11km ;受自然、社會條件的影響,不同路段的公路效應存在較大差異,甚至同一路段兩側效應也各不相同。 1976年至2003年,距公路不同距離范圍內的人口密度都在增加,且距離公路越近,人口數量密度越大、增長越快,人口分布有向公路兩側聚集的趨勢。選取人口密度為大、中、小三個樣區分別分析公路效應的范圍表明,人口密度
  2. Crossbreeding of chlamys farreri were performed using the parent scallops from the korea wild population ( k ), china cultured stock ( c ) and the survived individuals in epedimic waters in culture area of china ( cs ). four crosses, k k, k c, k cs and c c, were constructed. the index of growth performance of their progenies such as the length and width of the shell and the individual weight were measured for heterosis study

    用來自韓國野生的櫛孔扇貝和中國養殖的櫛孔扇貝以及發病區存活的個體作為親本,構建韓國野生韓國野生、韓國野生中國養殖、韓國野生中國養殖發病區存活個體以及中國養殖中國養殖共四個交配組合,通過對f1代個體殼寬、殼高和體重的測量比較不同群體的生長情況。
  3. 3 ) the cochineal insect can develop well when the light is 601ux to 9801ux while the temperature and humidity are at suitable levels. comparing from the population tendency index, the index is larger under weaker light

    3 )在光照對胭脂蟲的影響方面,只要有適宜的溫濕度條件, 601ux到980lux的光照強度下胭脂蟲均能正常發育,從種群趨勢指數上看,弱光下胭脂蟲的種群趨勢指數更大。
  4. On the basis of foreign documents, the dissertation firstly describes the morphology, taxonomy, and biological characters of cochineal insects. then, by using artificial climate cases in the lab, according to orthogonal design, 8 lands of combinations of temperature, humidity and light is set, while the temperature has four levels : 15, 20, 25 and 30, and the relative humidity has two levels : 60 % and 80 %, while the light also has two levels : 980 lux and 60 lux. through observations and analysis of hatching percentage, survival percentage of the first instar and during from the second instar to the adult, the population tendency index, generation life cycle, size and eggs of female adult, the development of the cochineal under different conditions is studied

    在收集、整理國外對胭脂蟲的研究資料基礎上,首先從胭脂蟲的形態學、分類學、生物學特性入手,進而在實驗室內利用人工氣候箱,應用正交設計方法,設計了4種溫度、 2種濕度、 2種光照梯度的不同組合,通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標,深入研究胭脂蟲在這些組合下的生長發育狀況,應用數理統計方法,分析出溫度、濕度和光照對各項生物學指標的影響,找出胭脂蟲適宜的室內培育條件,並為野外胭脂蟲的培育提供一定的理論依據。
  5. Population status logs that record status and indexing errors for each index within a catalog

    將每個索引的狀態和索引錯誤記錄到一個目錄中的填充狀態日誌。
  6. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定,而格局分佈有可能受樣方大小的影響,且分析過程中沒有涉及聚塊間密度差的問題,因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法,測定不同生境的格氏栲種群空間格局,分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義,紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明,格氏栲種群格局強度從高到低排列次序為:木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷;格局紋理從粗到細的順序是:木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此,格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
  7. Based on the cultivated land fertility, according to grain yield, the planting coverage, the ratio of the grain crops to industrial crops and multiple crop index, the cultivated land population carrying capacity in 2010 and 2030 at the different population increasing modes were attained by predicting and analysing the food produce and the cultivated land carrying capacity

    摘要以耕地地力為基礎,根據糧食單產、種植面積、糧經比和復種指數對河南省糧食產量和耕地資源承載力進行了預測和分析,得出不同人口增長模式下的河南省2010年和2030年耕地資源人口承載力。
  8. According to the modified carlson ' s trophic state index, the lake has recently been varied between oligotrophic and mesotrophic. cyanophyta, bacillariophyta and crytophyta were the superiority population in qiandao lake, but cyanophyta was the superiority population in algae bloomed month such as march, june and july

    藍藻門、硅藻門、隱藻門為千島湖的優勢種群,但在藻類爆發的5月、 6月和7月,均是藍藻門為優勢種群,優勢種群與1992年比較發生了i刪。
  9. From the analyse of in - out index, we know that hetian population grows quickly and keeps such condition for a long time. this causes a large number of population and makes the population denominator effect obviously. overfull population affects the regional sustainable development, and causes contradiction between the population number and the land, food and all kin

    而人口是「 ppe 」怪圈中唯一的具有能動性的因子,又位於可持續發展的基礎層,人口數量問題給當地脫貧工作帶來了困難,所以要想達到全面小康社會的目標,解決和田不可持續問題就需要找出貧困怪圈的癥結,要首先解決人口問題。
  10. But an index of needs would also account for differences in the requirements for living as the population becomes more urbanized and suburbanized ; for the changes in national defense requirements ; and for changes in the effect of weather on our needs

    但是這個需求的指標同時也要在人口結構發生城市化和鄉村化的變化時,在在國防和氣候方面的需求發生變化時,能夠區分它們之間的差別。
  11. Soil microbial biomass and viable population size ( plant counts ) were negatively affected by the elevated metal levels, but the size of soil basal respiration rate and microbial metabolic quotients were positively influenced by the increasing heavy metal pollution levels. microbial community structure also changed with increasing contamination, as indicated by biolog data and principal component analysis of biolog community metabolic profiles. soil microbial metabolic profiles ( awcd ) values, community richness and diversity index in mine - soils decreased remarkably as compared

    相關分析結果表明,土壤重金屬含量和土壤基礎呼吸、微生物量cfn 、代謝剖面( awcd ) 、微生物商( cmic / corg ) 、代謝商( qc02 )與人工栽培的香根草植物地上部分呈顯著或極顯著正相關(卜0 . 6653飛0 . 8945 」 ) ;微生物量c 、微生物量n 、生化作用強度、酶活性、群落shannon指數( h )和微生物群落豐富度( s )與人工栽培的香根草植物地上部分生物量呈顯著或極顯著地負相關( r =一。
  12. We fist concisely summarize the indicators and index systems of the asd at home and abroad to inforce the base on which we can bring forth new idea in index system of easd in chapter 2. secondly, in chapter 3 systematical analysis is made on the conception and denotation of asd that includes populational, economic, social, resources, and environmental factors. then we draw an initial generalization and conclusion of the theoretical foundation of the asd : the theory of population carrying capacity, the theory of ecological economic, and the theory of system control

    論文的第二章對農業可持續發展評估研究現狀的綜述,追溯評估指標體系的產生和研究進展,考察現有評估指標體系的長處和不足,為農業可持續發展評估指標體系的創新研究夯實基礎;論文的第三章系統分析農業可持續發展的內涵及影響因素,對持續農業的概念和內涵進行系統闡述,對影響農業發展的人口、經濟、社會、資源、環境五大因素進行分析,並初步歸納了農業發展可持續性的人口承載力、生態經濟、系統控制等相關理論,從而更準確地把握農業可持續發展的內涵,為評估指標體系的建模奠定良好的基礎。
  13. In chapter 4, based on the analysis of denotation and functions of index system and the elaboration of connotation, goals, basic principles and its factors of asd, we inquire 25 scholars in the fields of asd and construct the index system of easd including population, economic, social, resources, environmental system that add up to 32 indicators considering from the statistic data in hand. then we calculate the weight of each indicator with the analytic hierarchy process ( ahp ) according to the advices given by the scholars. next, a comprehensive evaluation model is built for evaluating the level of asd, the ability of the resources and environmental systems to the population, economic, social development systems, the level of coordination development situation of population, economic, society, resources, environment with the methods of econometrics regress models and fuzzy mathematics

    論文第四章,在把握一般指標體系內涵、功能的前提下,結合對農業可持續發展的涵義、目標與影響因素分析的基礎上,通過對25位國內農業可持續發展研究學者的咨詢,構建包含人口、經濟、社會、資源與環境五大系統共32個指標的浙江大學碩上學位論文衣業友展可持續性的評估指標體系及其應用研究農業可持續發展評估指標體系,採用層次分析法( ahp )確定各指標權重,進而從農業可持續發展水平、農業中資源與環境系統對人口、經濟、社會系統的支持能力及各大系統之間的協調發展狀況三個方面運用統計分析方法(計量經濟學和模糊數學)建立綜合評估模型。
  14. But the population genetic that based on the statistic model ca n ' t explain the entropy change disciplinarian in the process of evolution, and the genetic diversity index system not enough prefect

    但目前建立在統計學基礎上的群體遺傳學尚未闡述清楚進化過程群體的熵變規律,而且遺傳多態性分析的指標體系不夠完善,因而必須用信息論方法科學描述和豐富遺傳多樣性的指標體系。
  15. So must use information theory method depict and abundant the genetic diversity index system. in addition to, the introduce of molecule biology technology and the research of nucleotide sequence evolutive give a new method for population genetic, so must do deeply research about the analysis method of dna sequence data = the research main about the follows : there are three parts about the information model of population genetic : one about the shannon information entropy property of equilibrium population and the entropy change in the process of establish equilibrium ; another research is about the diversity measure - ment of genetic variation ; lastly, research the shannon information measurement about the disequilibrium gene variation. the result is : 1 to a definite gene distribution, the genotype entropy reach the maximum at the equilibrium population, the process of population from disequilibrium to equilibrium, the entropy get large and large

    此外,分子生物技術的介入及核苷酸序列進化的研究都為群體遺傳學的深入研究提供了新的途徑,但關于dna序列數據的分析方法需要作進一步的研究。本研究主要體現在以下幾個方面: (一)關于群體遺傳學的信息論模型研究,主要分為三部分內容:一是群體平衡的shannon信息熵的性質和群體平衡建立的熵變性質;二是群體遺傳多樣性測度的研究;三是非平衡群體的基因變異測量shannon信息量的方法研究。得到了如下結論: 1 、平衡群體的shannon信息熵最大,群體平衡的過程是熵的增大過程。
  16. The paper is divided into three sector : in the first sector, base on cohort - component method and via quantitative analysis and qualitative analysis to matter of fact, the paper imports several variable : accelerating function of survival rate, correct children women ratio, proportion of infants, and establish correct cohort - component method. in the second sector, base on several hypothesis, zhejiang province population forecasts are made by correct cohort - component method, and population composing are presented in the future. in the third sector, base on results of zhejiang province population forecasts, the paper discusses change trend of mainly population index in the 21 century, and analyzes how population trend effects development of society and economy

    本文分三部分進行:第一部分,在隊列要素法的基礎上,通過對實際情況的定量分析與定性分析,在模型中引入了以下變量:生存概率加速函數、修正兒童婦女比、幼兒性別比,建立了修正隊列要素法模型;第二部分,在幾個重要假設的基礎上,根據修正隊列要素法進行浙江省未來五十年人口預測,給出了各預測年份分性別年齡的人口構成情況;第三部分,是在上述預測結果的基礎上,對21世紀前半葉浙江省的主要人口指標的變化趨勢進行討論,並對浙江省的總的人口變動趨勢及其對社會經濟發展影響進行分析。
  17. Population index ? covers all fields of interest to demographers, including fertility, mortality, population size and growth, migration, muptiality and the family, and research methodology

    人口索引向人口學家,包含死亡人數,人口數量和成長,遷移,結婚率和家庭的研究方法覆蓋所有的使人感興趣的領域。
  18. One is population index way witch use city population to respond the urbanization. the other way is complex index way witch is still in the study. we 11 use a new way - - complex index way - - to messure guangdong province ' s and other provice ' s urbanization

    要研究城市化發展情況,就要準確、客觀地評測城市化水平,現在世界上廣為運用的評估城市化水平的方法是人口指標法,運用城鎮人口占總人口比例來反映城市化發展水平,另外一種新的方法:復合指標法,仍然在研究當中,還沒有廣泛運用。
  19. The correlation between land use urbanization index and population index was calculated and the coefficient was r = 0. 826

    通過對全國土地利用城鎮化指數和人口城鎮化指數的相關性分析,兩者相關系數達0 . 826 ,顯著相關。
  20. This makes the daytime population 1. 2 times more than that of the nighttime population ; the daytime population index is 122 against the nighttime population taken at 100. this difference is caused by the population of commuting workers and students, constituting a daytime influx from the three neighboring prefectures of saitama, chiba and kanagawa

    以夜間人口指數為100 ,白天人口指數就是122 ,這個差別是由通勤的學生和工薪族所引起的,來自三個鄰縣?玉千葉和神奈川的人口構成了白天的流動量。
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