sample area造句
例句与造句
- Because of decrement in pesticide use , from 1999 - 2001 , the poisoning probability caused by pesticides use for farmers who plant bt cottonseeds is respectively 17 % , 22 % and 4 % lower than those who plant non - bt cottonseeds , with an average number of 11 % in this three years . meanwhile , bt cotton planting farmers in yellow river watershed and changjiang river shed saved 48 . 4 yuan and 107 . 8 yuan per time in pesticide and wage losing cost , with the average of 68 in sample areas
中冈农业和学院博卜学泣论文中英义摘芙山于农户大幅度减少了衣药投入， 1999 2001年调查的种植bt抗虫棉的农户发生农药中毒的概率分别要比种植非bt棉的农户低17见2肌和4 “三年总平均要低11以同时按照样本所在棉区计算的bt棉种植农户相应节约的农药和误工费用分别为黄河流域棉区48 - This paper mainly carries on research into quantity , degree and depth of luc , and landscape change degree in different economic zones of chongqing , comparative study of human driving forces causing different luc from qualitative and quantitative respects in different economic zones of chongqing , further investigation with cultivated land change and construction land change and driving force through analyzing proper human driving forces using principal components " analysis , multi - linear regression model , stepwise regression model , quantitative prediction of cultivated land and construction land in the following 10 years in the sample areas with the help of grey trend prediction model such as gm ( 1 , 1 )
本研究主要进行了不同经济区土地利用变化数量、变化程度(速度、速率) 、深度以及景观变化差异研究；从定性和定量两个方面对引起不同经济区样点土地利用变化差异的人类驱动力进行对比性研究；通过选取适当的人类驱动力因子，利用主成分分析法、多元线回归模型、逐步回归分析法对人类驱动力所引起的不同经济区的耕地、建设用地的土地利用变化进行深入研究；利用灰色动态预测模型gm ( 1 ， 1 )对未来10年内样点区耕地、建设用地变化进行预测性研究。 - As urban is the region where the human behavior has effect on nature landscape ecological system most frequently and acutely , the research on land use of urban and its change has arouse people ' s interests . based on the data of land use investigate and remote sensing , the land use dynamic change of beijing chosen as the research flat from 1992 to 2001 has been opened from three level ( total city , district , sample area )
而城市作为人类行为对自然景观生态系统作用最频繁和最剧烈的区域，它的土地利用及其变化引起了人们的研究兴趣。本文选择北京市作为研究平台，在土地利用调查数据和多时段遥感数据的支持下，试图从三个层次(全市、区域、样区)来揭示1992 2001年北京市土地利用动态变化时空特征。 - The research results are as follows : ( 1 ) with the increasing of the height to the ground , the value of co2 concentration in air become adding ; the depth of soil profile more deeper , the value of co2 concentration in soil more higher . ( 2 ) the temperature in the sample area , which is with high elevation , is higher than the temperature in the sample area , which is with low elevation
通过研究发现： ( 1 )两不同海拔高度上的样地内大气co _ 2浓度值均具有随距地表高夏季金佛山垂直自然带匕岩溶生态系统内co :动态的研究度的增加而减少的趋势;而土壤空气中的c0 :浓度值多具有随土深增加而增大的趋势。 - It's difficult to find sample area in a sentence. 用sample area造句挺难的
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