density of population 中文意思是什麼

density of population 解釋
人口密度
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • of : OF ＝Old French 古法語。
  • 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。
  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. During 2001 to 2002, observation and statistics were made on the dynamic status of migration, habitat form, habit of activity and population density of aves in the wetland of hengshui lake. the management and protection of bird resources are also discussed in the paper

    本文對衡水湖自然保護區鳥類的物種多樣性和季節動態、以及重要水鳥的繁殖和水鳥生境的重要性進行了研究，分析了衡水湖自然保護區水鳥面臨的威脅，並提出了保護對策。
  3. Worked out the preliminary probing or studying therewith the expressible mathematical model, used the remote sensing technology to study the relation between the density of population and the intensity of urban hot - island effect

    在利用遙感技術研究城市人口分布密度和熱島強度之間密切關系的數學模型的數值表達上，做了初步的研究和探索。
  4. 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。
  5. At last, the thesis have researched urbanization trend from these aspects of migration of population, change of population density, layer distribution of urbanization as well as development and division of satellite towns

    最後文章從人口遷移、人口密度變化、城市化圈層分佈和衛星城鎮的發展及分工等方面對人口城市化趨勢進行了探討。
  6. From the aspect of area distribution, problem of water environment and factors of population, society and economy do n ' t coordinate with each other : in those areas which are rich in water, there are serious pollution and waste ; in those which are lack of water, economy is relatively behind the times ; in those where there is less lack of water, high population density faces the water resource with great potential pressure

    水環境問題與人口、社會、經濟等因素在地區分佈上很不協調，如水資源豐富地區，水污染與水浪費十分嚴重；缺水地區，經濟相對落後；缺水程度低的地區，人口密度較高，使水資源存在巨大的潛在壓力。在影響水環境的相關因素中，人口因素的作用十分突出，主要表現在兩個方面：一是地區人口數量與分佈的集中程度是決定水資源壓力及相關水環境問題的真下因素；二是人口素質與水管理水平之間具有一定的正相關關系。
  7. The sub - model for design of population density was developed according to the principle of determining boll number from target yield, fruit node from boll number, fruit branch from fruit node and population density from fruit branch by integrating the effects of sowing date, cutout date, effective temperature accumulation above 12, variety type, and fertilizer and water management levels. sowing rate was then decided by integrating the effects of different soil water and salt contents, ph, temperature and sowing style on seedling emergence rate with relative weight method

    基於「以產定鈴、以鈴定節、以節定枝、以枝定苗」的原理，同時考慮播種日期、打頂日期、 12的有效積溫、品種株型特性、肥水管理水平差異等因素來確定適宜的種植密度；在此基礎上，應用相對權重法計算土壤含水量、含鹽量以及整地質量和播種方式等多個生態環境因子對出苗率的綜合影響，進而確定播種量。
  8. As a metropolis with a population density of 6 500 persons per square kilometre, hong kong will most probably need to give up some green belts, or carry out large - scale marine works in order to develop wind power generation extensively

    要在香港這個人口密度高達每平方公里6 ， 500人的大都會大規模發展風力發電，很大機會須要減少綠化地帶或進行大規模海上工程。
  9. Part three : analyze the particular feature of population in shantou city and conclude it is in the stage of great - base, high - growth rate and large - scale family, big - density, great - shortage in qualified persons and great pressure in job - seeking

    第三部分：汕頭市獨特的人口特點分析。分析了汕頭市人口基數大、增長快、密度大、家庭規模大，文化素質低，生育壓力大，就業壓力大，目前仍處于高自然增長率的人口生產階段。
  10. By using the improved gravity model and gray theory model, the essay makes forecast analysis on future passenger traffic volume of shjiazhuang - taiyuan passenger - dedicated line from three aspects, including passenger flow of local line, passenger flow originating from other railways and induced passenger flow, and using gdp and population density of surround cities along the passenger corridor, the passenger traffic volume on existing line of shijiazhuang - taiyuan passenger corridor and the weighted operation time between cities as impact factors respectively

    摘要利用改進的重力模型和灰色理論模型，從石太客運專線的本線客流、跨線客流和誘增客流3個方面，分別以客運通道周邊城市的gdp和人口分布密度、石太客運通道既有線的旅客運輸量、城市間的加權運行時間為影響因子，對石太客運專線的旅客運輸量進行預測分析。
  11. An analysis of population distribution took place on all of the 11 sites, and population size and density of 8 sites out of these 11 sites were estimated by direct counting method, in order to get basic information of the population ecology of cathaica cavimargo

    進行種群分佈分析時評估了石灰巖、純灌木、石灰石灌木、石灰石草地、花崗石灌木、花崗巖、純草地和花崗石草地8個樣地種群大小和密度，以便獲得cathaicacavimargo種群生態基本數據。
  12. 2 the correlativity is quite obvious between the synthetical index of land use and density of rural population, positive between the comprehensive index of land use and total densities of population and between areas of individual classification of land and income per capita

    2江安縣土地利用程度綜合指數與農村人口密度之間顯著相關，與總人口密度之間不相關。各地類的面積與人均收入之間也不相關。
  13. Only the water at jiekou had been eutrophic. the result of biological assessment was that the average density of phytoplankton at all the sampling spots was more than 1, 000, 000 per litre, indicating that the lake was eutrophic going by the population density. but this density of phytoplankton was higher than that in similar lakes at the same pollution level

    生物評價結果認為，千島湖浮遊藻類平均密度較同類營養水平的淡水水體高，其所有取樣點浮遊藻類平均密度都10 ~ 6個? l ，國內外一般認為當浮游植物平均密度10 ~ 6個? l時，其已經達到富營養化水平，因此單從浮游植物密度來看，可以認為千島湖已達到水體富營養化。
  14. Relationship between the population density of schizotetranychus nanjingensis with the bamboo output and the determination of economic threshold

    南京裂爪蟎種群密度與新竹產量的關系及經濟閾值的研究
  15. With the development of civil construction and the increase of population density, the harm of earthquake becomes more and more serious. it is very important to make preparation to reduce the lost of earthquake

    隨著城市建設的發展和人口密度的增大，地震對人類的危害變的越來越大，做好抗震防災工作具有非常重要的現實意義。
  16. The density of population in this city is very high

    這個城市的人口密度非常高。
  17. Nowhere else has the density of population and the transport demand like ours

    沒有一處地方的人口密度和運輸需求跟香港的一模一樣。
  18. For instance, hong kong might score badly because of high density of population, but at least every single citizen lives within reasonable proximity of one of our fine country parks

    例如，香港地少人多，人口密度確實很高，但最低限度市民總可在住所就近找到郊野公園，置身於綠色世界之中。
  19. The density of population is low, meagerly - populated, live and disperse ; the economic base is weak, rely mainly on the fact that self - sufficient basically ; the ecological environment is fragile ; unreasonable industrial structure, the secondary industry and the third developing of the industry are slow

    人口密度低，人煙稀少，居住分散；經濟基礎薄弱，基本以自給自足為主；生態環境脆弱；產業結構不合理，二、三產業發展緩慢。
  20. The simulating time is long as 100 years. in order to lucubrate all the variables ( population, jobs, houses supply, houses demand, workforce, the city development area, the density of population, the land - using rate ), the exogenous variables, parameters and structure are changed respectively and selectively in the simulating course

    在驗證了模型的有效性之後，對模型進行長達一百年的模擬，同時有針對性地改變模型的外生變量、結構及參數，以便更深入地觀察下列變量的變化情況：人口數量、就業崗位、住宅供給量、住宅需求量、勞動力、建成區面積、人口密度、土地佔用率。
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