population change 中文意思是什麼

population change 解釋
人口變動
  • 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。
  • change : vt 1 改變,變更,變換,變革。2 交換;兌換;把(大票等)換成零錢;把(支票等)兌成現金。3 換(車、...
  1. The different locus outcrossing rate of adiantum reniforme l. var sinese y. x. lin has great change in the same population, and the outcrossing rate difference of the same enzyme locus is also high in the different population

    荷葉鐵線蕨不同位點的異交率在同一居群內的變化很大,而不同居群間的同一酶位點的異交率差異也是較大的。
  2. Boserup, ester 1965. the conditions of agricultural growth : the economics of agrarian change under population pressure. chicago : aldine

    (埃斯特? )博塞拉普( 1965 ) : 《農業增長條件:人口壓力下農村變化的經濟學》 。
  3. 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
  4. The results show that : the main driving forces of arable land change of shouguang county are the per capita income, the ratio of the pasture output value, the ratio of the cropping output values and the ratio of agricultural labor force proportion ; the main driving forces of arable land change of quzhou county are the variation of grain yield per unit area, the ratio of the pasture output value, the ratio of the cropping output values, the ratio of grain field areas and the population density

    結果表明:壽光市耕地變化的主導驅動力包括人均收入、牧業總產值比例、種植業總產值比例和農林牧漁業勞動力;曲周縣耕地變化的主導驅動力包括糧食單產、牧業總產值比例、種植業總產值比例、糧田面積佔耕地面積比例和人口密度。在此基礎上,揭示縣域尺度上耕地變化的驅動機制,並為進一步進行土地利用覆蓋變化研究積累方法和經驗。
  5. When economically still underdeveloped, china has accomplished a historic transition in population reproduction pattern from one featuring high birth rate, low death rate and high growth rate to one featuring low birth rate, low death rate and low growth rate in a relatively short period of time, a change that took decades or even up to a hundred years for developed countries to realize in the past

    中國在經濟不發達的情況下,用較短的時間實現了人口再生產類型從高出生、低死亡、高增長到低出生、低死亡、低增長的歷史性轉變,走完了一些發達國家數十年乃至上百年才走完的路。
  6. Land allotment becomes unequal with the change of population. the ownership of land has ambiguous character, vacant subject and incomplete capacity. the right to operate contracted landing is right in personam and should be changed into right in rem

    從理論上分析產生問題的原因主要有:一是土地所有權的性質模糊、主體虛位、權能殘缺,二是土地承包經營權不規范,應為物權而是為債權,具有債權的不穩定性。
  7. A change from malthusian population theory to a modern theory of population

    從馬爾薩斯人口理論到現代人口理論的轉變
  8. 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。
  9. Every day, the news, government reports and scientific studies testfy to the increasing consequences of population change

    題意為:每天都有新聞報導、政府報告和科研結果證實人口變化帶來越來越多的後果。
  10. Response analysis between population change and urban man - made landforms in dalian

    大連市人工地貌對人口變化的響應分析
  11. In order to better understand the law governing and trend of the population change, further slow - down population growth, improve population quality, and properly formulate a population policy and social and economic development plan for the 21st century, the chinese government conducted its fifth national population census in november 2000

    為比較準確地把握人口變化的規律和趨勢,進一步控制人口增長,提高人口素質,正確制定面向二十一世紀的人口政策和社會經濟發展規劃,中國政府於2000年11月開展了第五次全國人口普查。
  12. On the basis of completing the research of the theoretic of agricultural production macro decision support system, the writer carries through the demonstration analysis research for chuangye farm, who has established the data houseware of agricultural production in chuangye farm, and has completed the the grain yield forecast, agricultural products " price index forecast, disaster changing forecast, industrial production structure assessment by using data mining system, the simulation of livestock ' s population change, analysis of input and output, and the establishment of model of industrial structure optimization. it settles the base for full information support to agricultural production macro decision of chuangye farm

    在完成農業生產宏觀決策支持系統理論研究的基礎上,作者以創業農場為研究對象進行了實證分析研究,建立了創業農場農業生產的數據倉庫系統,並應用數據開采系統完成了糧食產量預測、農產品價格預測、災害變化預測等工作,應用模型管理系統完成了牲畜種群變化的模擬和投入產出分析,並建立了宏觀生產結構優化模型,為創業農場農業生產宏觀決策提供全方位的信息支持奠定了基礎。
  13. Agricultural growth and population change

    農業增長和人口變化
  14. China ' s population change and employment in the new stage of economic development

    經濟發展新階段的中國人口變動與就業
  15. The population change in guangxi and its effect on society during anti - japanese war

    抗戰時期廣西人口變遷及其對社會的影響
  16. The influence of the chinese population change from 2003 to 2010 on the employment and countermeasures

    2010年我國人口變動對就業的影響及應對措施
  17. World development report, 1984, recovery or relapse in the world economy ? population change and development, population data supplement, world development indicators, the world bank, washington, d. c

    《 1984年世界發展報告:世界經濟是在復甦還是繼續衰退?人口變化和發展,人口資料附件》 ,世界發展指標,世界銀行,華盛頓特區。
  18. One aspect, population change, is now handled by converting output to a per capita basis on the assumption that, other things equal, twice as many people need twice as many goods and services to be equally well off

    其中一個方面就是人口的變化,根據商品和服務的人均理論,把總的產量轉化為和人口相關的人均產量。
  19. With gis, gps supporting, all of the data collected, including statistics data, farmers input and output data, soil fertility data, water depth and quality data, etc. were put on the land use map. by comparing the temporal and spatial changes of these data, there were following conclusions out coming : ( l ) the change of cultivated land shows this tendency : rapid increasing period, rapid decreasing period, slow decreasing period, stable period, the driving force of cultivated land change are population change, climate change, technical change, the economic development and the national policies

    以曲周縣1 : 5萬土地利用現狀圖、土壤圖為基礎圖件,依託gis和gps信息技術,利用曲周縣統計年鑒、土地利用變更調查、農戶調查、不同用地類型的土壤養分、地下水位、水質等數據資料進行綜合分析,得出了以下主要結論: ( 1 )建國以來,曲周耕地數量經歷了增加急劇減少緩慢減少相對穩定的變化過程。
  20. Proceed with people ' s modernization relevant concepts, some basic conception such as the modernization, population, people are differentiated and analyzed correctly, have expounded the abroad theories about the main theory of the population and development - appropriate population theory and population change theory

    從人口現代化有關的概念入手,對諸如人、人口、人的現代化等基本概念進行辨析,論述了國外關於人口與發展的主要理論?適度人口論和人口轉變論。
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