| 词汇 | example_english_natural-fertility |
| 释义 | natural fertilitycollocation in Englishmeanings of naturaland fertilityThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with fertility. natural adjective uk /ˈnætʃ.ər.əl/ us /ˈnætʃ.ɚ.əl/ as found in nature and not involving anything made or done ... See more at natural fertility noun[U] uk /fəˈtɪl.ə.ti/ us /fɚˈtɪl.ə.t̬i/ (of animals and plants) the quality of being able to produce young ... See more at fertility Examples of natural fertilityThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Though the length of birth intervals can vary substantially under conditions of naturalfertility, the general pattern of these intervals is essentially the same in naturalfertility populations. To understand this, consider a woman who under naturalfertility would have 12 confinements. This does not mean that the women would achieve the full potential of their naturalfertility. The naturalfertility of participants increases as the government programme is assumed increasingly to include younger adult women. This may suggest that even among the naturalfertility cohort of 1894-1913, fertility was not homogeneous. To calculate this, we need to know what this distribution would be in a population with naturalfertility. However, the incidence of sterility and childlessness do not support the idea of impairment of naturalfertility. Thus, their fertility level may be considered as approaching the biological maximum or what is sometimes called 'naturalfertility'. Two of the factors that influence the naturalfertility rate of a population are permanent sterility and fecundability. It has been observed that in naturalfertility populations, women with a great number of confinements have shorter birth intervals than women with few confinements.#! High levels of grazing pressure/utilization result in the loss of more productive species, except in areas where the naturalfertility and rainfall is high. The age pattern of these rates started deviating from that of a naturalfertility standard for those who married between 1914 and 1923. Since the age at last birth was 40 for those who married between 1894 and 1903, this marriage cohort was probably acting under naturalfertility. The natural vegetation is incorporated into the soil as naturalfertility (usually as ashes after burning it) at the time of cultivation. The advantage of this definition, however, is that it makes it easier for the demographer to distinguish between populations acting under naturalfertility and populations deviating from it. This definition can allow ' spacing ' techniques of fertility control, consciously undertaken for the purpose of delaying further births, still to be characterized as a species of naturalfertility. Disaggregating fertility by occupational group has revealed that even among the naturalfertility cohorts at the beginning of the study period (1894-1913) fertility was not homogeneous. The method of family reconstitution was primarily devised to measure fertility and especially to establish how close the fertility of the examined population is\\was to naturalfertility. You can no more do that than you can create the naturalfertility of the soil. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Naturalfertility in human beings is relatively poor; we are not an efficient species. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It improved the naturalfertility of the soil, and it changed its colour. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 This has created a sandy desert where erosion by wind and rain quickly destroys any naturalfertility. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is a great hardship to themselves and a squandering of the naturalfertility and resources of that land. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of natural Go to the definition of fertility See other collocations with fertility |
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