粮食产量
- 名grain yield
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中国粮食产量的无偏灰色GM(1,1)模型与预测
Application of Unbiased Gray Model in Forecasting the Grain Yield in China
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云南粮食产量对ENSO振动的响应
The primary study of the grain yield of Yunnan Province responding to ENSO
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天气变得更加温和,粮食产量也已经提高。
The climate has grown more equable and the crop yields have risen .
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在粮食产量上,中国首屈一指。
In the output of grain , China is second to none .
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粮食产量翻了两番。
The grain output is quadrupled .
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粮食产量激增。
Grain output shot up .
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尽管天气不好,粮食产量并未下降,甚至比上年还略有增加。
In spite of the unfavorable weather , the grain output of the farm kept up and even increased a little than last year .
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预计到2050年,全球人口将增长到96亿,一些分析人士估计,粮食产量需要提高50%,才能维持目前的水平。
The global population is expected to grow to 9 . 6 billion by 2050 , and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels .
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嵌入知识的GM(1,1)模型及其在粮食产量预测中的应用
Knowledge-Embedded GM ( 1,1 ) Model and Its Application to Forecasting of Grain Output
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这几年粮食产量有le很大增长。
Grain output has greatly increased in the past few years .
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更为根本的是,g20必须推动粮食产量的增加,特别是在食品短缺的贫困地区。
More fundamentally , the G20 must promote increased food production , especially in the poor and food-deficit regions .
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本周,来自联合国和经济合作和发展组织(OrganisationforEconomicCo-operationandDevelopment)的报道称,一些环境因素,诸如旱灾、减产和土地流失很有可能会制约全球粮食产量的增长。
This week , the UN and the Organisation for Economic Co-operation and Development reported that environmental factors such as droughts , bad harvests and lack of land were likely to limit the growth of global food output .
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基于改进B-P算法的内蒙古粮食产量中长期预测
Middle and long term forecasting the grain gross output of Inner Mongolia with back-propagation algorithm
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联合国粮农组织(UNFoodandAgricultureOrganisation)的研究表明,只有把全球粮食产量提高70%,才能满足人口增加、饮食习惯变化和城市化所导致的粮食需求上升。
According to research by the UN Food and Agriculture Organisation , global grain production will have to increase by 70 per cent to meet the rise in food demand caused by population growth , changing dietary habits and urbanisation .
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本文建立基于BP神经网络的粮食产量预测模型,将国家统计局发布的粮食产量数据作为模型的训练样本和测试样本。
The grain output data released by the State Statistics Bureau is used as training samples and test samples . The prediction by BP algorithm and the BP algorithm optimized by genetic algorithm in grain output prediction model are compared .
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美国农业部长TomVilsack表示,任何一个国家都不可能单独实现既减少农业温室气体排放,同时又增加粮食产量。
United States Agriculture Secretary Tom Vilsack said no one single nation can fight agricultural greenhouse gas emissions and increase food production at the same time .
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针对中国农村劳动力严重过剩的国情,选用Bruno的生产函数,对我国的粮食产量进行了实证分析。
In this article , Bruno production function is selected for the two step analysis of the Chinese agricultural output , which has taken the country 's surplus labour force and its transfer into full consideration .
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对中国粮食产量增长率的波动性进行了实证计量分析,利用最大似然方法估计了3种GARCH族模型(GARCH、T-GARCH和E-GARCH)。
In this article , the author makes an empirical econometrical analysis of increasing rate of China 's grain output . Then he estimates three GARCH models ( GARCH ? T-GARCH and E-GARCH ) with the methods of Quasi-maximum likelihood estimation .
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农业复杂巨系统的特点与全国粮食产量预测研究
Characteristic of Agricultural Complex Giant System and National Grain Output Prediction
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江西省粮食产量预警系统研究
The Study on the Early Warning System of Jiangxi Grain Yield
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免耕对粮食产量及经济效益的影响评述
Review of impacts of no-tillage on crop yield and economic benefit
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甘肃省粮食产量气候年景评判方法
Evaluation methods to climate years for grain yield in Gansu province
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基于灰色系统模型的河南省粮食产量预测
A projection of Henan grain production based on grey systems models
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贵州省粮食产量波动的气象原因及其对策的研究
Meteorological factors affecting grain output fluctuation and its countermeasure in Guizhou
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影响齐齐哈尔市粮食产量的灾害因素灰色关联分析
Gray Incidence Analysis on the Factors of the Agriculture Output in Qiqihar
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中国粮食产量保险费率的订定方法和保险费率区划
The Formulation of Premium Rate and Its Division in China
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常年粮食产量150万吨左右。
Often year food yield 1,500,000 tons be or so .
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那个村的粮食产量是2002年的两倍。
The grain output in that village is twice over that of2002 .
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官员们将粮食产量降低归咎于干旱少雨。
Officials have blamed the decreased production on a lack of rainfall .
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广西粮食产量灰色关联分析
The Grey Correlation Analytic Process of Grain Yield in Guangxi