Usage and analysis of antibiotics in acute upper respiratory tract infection of 1230 children in semitropical area 1230例亚热带地区儿童急性上呼吸道感染抗生素的使用和分析
2.
Implementation of large - scale development in the western part of china has endowed the beautiful and rich semitropical nanning a good development opportunity as well as an investment environment 西部大开发的实施，更加给美丽富饶的亚热带带南宁提供了一个良好的发展机会或投资环境。
3.
When the rainy season is over , the real summer comes . ogasawara islands , in particular , being 1000 km away from tokyo and belonging to a semitropical zone , are an area of the eternal summer throughout the year 23区(东京?新木场?羽田?练马?世田谷)月平均气温和降水量多摩地区(小河内?青梅?八王子?府中?小泽)月平均气温和降水量
4.
The paper concludes that the changing rate of ndvi of rain forest in tropic is the smallest , the changing curve is smooth , while the changing rate of ndvi of the deciduous broad leaf forest in warm - temperate zone is the largest the change of ndvi is the most conspicuous in winter and spring ( especially in april ) while is not conspicuous in summer and autumn by analyzing the change of ndvi along latitude using the ndvi value of different vegetation types along the same longitude . the vegetation index from warm temperate zone to semitropical zone has obvious transition , while other areas have no distinct change by analyzing the change of ndvi from temperate zone to semitropical zone to tropical zone using ndvi averagejn the same time it is concluded that the sink value in the beginning of the year 1995 is from the influence of the monsoon in east of china by analyzing the ndvi curve of several typical needle leaf forests . the relation between ndvi value and temperature is conspicuous while the relation of precipitation is less or not by analyzing the relation between ndvi and temperature and precipitation finally it can get the conclusion that the change of river area is the smallest , the change of sienna area is the greatest by analyzing two phases of tm data in 1987 and 1997 with rs technic 利用从同一经度的不同森林类型ndvi值分析，沿纬度方向ndvi变化可得出， ndvi在冬春季变化最明显(尤其是在4月份最大) ，而在夏季和秋季变化不明显。利用ndvi均值进行分析，从暖温带到亚热带到热带的变化情况发现，从暖温带到亚热带ndvi指数形成明显的阶跃，而其它区域没有太大的变化，同时对几种典型的针叶林曲线分析可知其年初的凹值源自于我国东部季风的影响。利用ndvi数据分析其与月均温度与降水的相关性得出与温度相关性较为显著，而与降水相关性不显著或无相关性。
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The vegetation type was classified in the east transect by unsupervised classification using the data ( ikmx 1km ) from noaa meteorology satellite from 1995 - 1996 , and the article analyzed the change of ndvi of all kinds of vegetation types , in the same time analyzed the forest dynamics in typical ecotone ( warm temperate zone to semitropical in qinling woods ) using the higher spatial resolution tm data 本论文利用1995 - 1996年noaa气象卫星的ndvi ( 1km 1km )数据，采用无监督分类方法对中国东部样带南方部分进行植被类型的划分，分析各植被类型的ndvi变化情况；并利用较高精度的tm数据分析典型交错区域(暖温带到亚热带的秦岭林区)的森林动态变化情况。
