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grain production increase
相关语句
  粮食生产显著提高
     Through comprehensive harnessing of soil and water conservation for over 40 years,soil and water loss and land desertification in certain region have been controlled,eco-environment has changed better,which makes agricultural production conditions improve,grain production increase,countryside economy develop speedily.
     经过40多年的综合治理,局部地区水土流失与土地沙化得到有效治理,生态环境和农业生产条件明显改善,产业结构得到调整,粮食生产显著提高,农村经济迅速发展。
短句来源
  粮食增长
     APPROACH ON THE PROBLEM OF TECHNIQUE EFFICIENCY AND GRAIN PRODUCTION INCREASE
     技术效率与粮食增长问题探讨
短句来源
  “grain production increase”译为未确定词的双语例句
     Study of Half Coverage Technique with Straw in Semi arid Region in Western Liaoning and the Grain Production Increase Effect
     辽西半干旱区整秸半覆盖技术及增产效应研究
短句来源
     The supply of feed grain in domestic market will be affected by adjustment of crops plant structure, the potential of feed grain production increase, the feed grain price, the feed grain quality, and so on.
     未来国内饲料粮市场上的供给,受粮食种植结构、种植布局的调整,饲料粮的增产潜力,以及饲料粮价格和质量因素的影响。
短句来源
  相似匹配句对
     GRAIN PRODUCTION GROWTH OF INDIA
     印度粮食生产的发展
短句来源
     Production Techniques of Grain Film
     PVC粮食储藏膜的研制
短句来源
     Thoughts on Increase in China's Grain Production
     粮食增产在科技、科技增粮在推广──粮食增产之我见
短句来源
     The Production Increase Potential of Grain in JiLin Province
     吉林省粮食增产潜力分析
短句来源
     comprehensively developing resources to culture the increase of grain production;
     综合开发资源,培植粮食增长点;
短句来源
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The temporal variation of China's grain production development is studied comprehensively and systematically in this paper. First, the research method about temporal variation of China's grain production development is discussed. After analyzing the common method such as “stage method” and “step method”, the author proposed a new opinion and a method named as “gradual variation method”, and worked out a new formula to calculate “comprehensive variation ratio”. Second, taking the statistic data of historical...

The temporal variation of China's grain production development is studied comprehensively and systematically in this paper. First, the research method about temporal variation of China's grain production development is discussed. After analyzing the common method such as “stage method” and “step method”, the author proposed a new opinion and a method named as “gradual variation method”, and worked out a new formula to calculate “comprehensive variation ratio”. Second, taking the statistic data of historical national annual total grain production (from 1949 to 1995) as source data, the author analyzed the temporal variation characteristics of China's total grain production development by using the author's research method. Three temporal variation characteristics of China's total grain production are as follows: (1) The increase tendency of China's total grain production is very obvious; (2) The average increase ratio of China's total grain production is nearly 3%; (3) The trend of China's total grain production increase ratio is reducing. Third, the temporal variation mechanism of China's total grain production is researched by using relative analyses method and gray interrelation analyses method. The analyses result is that the first direct driving force of China's total grain production development is grain crop yield, and the second is grain crop sown area. Finally, the tendency of China's grain production development is studied and predicted by comprehensive dynamic prediction method and equal dimensional GM(1,1) dynamic prediction method. Three prediction schemes are obtained by each prediction method, and the final prediction result is that China's total grain production will be more than 500 million ton by the year 2000.

文章对我国粮食生产发展的时序变化进行了全面系统的研究。剖析了“阶段论”、“台阶论”等粮食生产发展研究的常用方法,提出和论述了“渐变论”的观点和方法,建立了“综合增产率”计算模型。然后,应用“渐变论”对1949年~1995年中国粮食总产量进行了定量研究,从粮食总产变化趋势和变化驱动力两方面,深入地分析了粮食总产的时序特征。最后,应用两种方法对粮食总产进行了动态预测,预测2000年我国粮食总产可突破50000×104t。

Although China's agriculture, especially grain production, has made great achievement since 1949, particularly after the open\|up and reform, in the 21st century China will meet serious difficulties and challenges for grain production increase because of serious shortage of agricultural resources and great rural labor surplus. However, by strict control of cultivated land, multiple cropping growth and raising land productivity through application of advanced technologies, China still has plentiful potential...

Although China's agriculture, especially grain production, has made great achievement since 1949, particularly after the open\|up and reform, in the 21st century China will meet serious difficulties and challenges for grain production increase because of serious shortage of agricultural resources and great rural labor surplus. However, by strict control of cultivated land, multiple cropping growth and raising land productivity through application of advanced technologies, China still has plentiful potential in grain yield and output to continuously follow the path of self sufficiency. The analysis and prediction are based on a systematic approach developed for China's grain issues, which has successfully implemented in China since 1980.

自1949 年以来,特别是改革开放以来,中国的农业特别是粮食生产有了长足的进展,在21 世纪中国在粮食生产的增长方面仍然面临严峻的形势和挑战,这主要是由于严重的农业资源匮乏和农村剩余劳力的大量过剩. 但是,通过严格控制现有土地资源、推广作物复种和采用先进技术提高单产,中国还是有能力在粮食的产出方面满足其自身发展的需要的.分析和论断基于自1980 年以来中国在粮食问题上成功使用的一种系统方法.

As measure for sediment storage,erosion control and grain production increase in water and soil loss areas,warping dams are with significant effects in sediment storage and erosion cotrol by either single dam or dams in small watersheds,tributaries and all basin.The volume of sediment storing in warping dams is makes up 40% to 80% of total sediment reduction by water and soil conservation treatment in Wuding river with average sedimcnt storage of 57 150 m3 in each hectare warping land.The developing prospects...

As measure for sediment storage,erosion control and grain production increase in water and soil loss areas,warping dams are with significant effects in sediment storage and erosion cotrol by either single dam or dams in small watersheds,tributaries and all basin.The volume of sediment storing in warping dams is makes up 40% to 80% of total sediment reduction by water and soil conservation treatment in Wuding river with average sedimcnt storage of 57 150 m3 in each hectare warping land.The developing prospects for warping dams are the consturction of relative stability of dam system,i.e.water depth is less than 0.8 m and duration for warping land in undated is shorter than 7 days when the storm with frequency of 1%0.5% happens,in which conditions the dams will keep their effects in sediment storage,erosion control and production increase for a long term.Therefore,relative stability of warping dam system is the final objective and inevitable outcome of warping dam development in gullies.

淤地坝是水土流失地区拦泥、减蚀、增产的措施,不论从单坝、小流域、支流和全流域来看,其拦泥减蚀作用都非常显著。在无定河流域每公顷坝地平均拦泥57150m3,淤地坝的拦泥量约占水保总拦泥量的40%~80%。淤地坝的发展前景是建设坝系相对稳定,在暴雨频率为1.0%~0.5%时,坝地水深不大于0.8m,淹水时间小于7昼夜,如达到此条件,淤地坝即可长期起拦泥减蚀增产的作用,因此坝系相对稳定是沟道发展淤地坝的最终目标,是淤地坝发展的必然结果。

 
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