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为了探讨农田林网对苏北沿海平原棉粮生产的防护效益,我们于1980年和1981年在东台县五七公社进行了两年的定位观测工作.在观测中我们发现,网格内外在某一时间里,有一个相等的温度值(我们暂叫它“等温值”).如当时气温高于这个温度值,林网里的温度就低于旷野;如当时的气温低于这个温度值,林网里的温度就高于旷野.因而我们对于这个温度值便产生了兴趣.并整理成文,试图和关心此项工作的同志们共同商讨.
In order to investigate the protective effect of farmland forest net on the cotton production in the coastal plain of northern Jiangsu, we conducted two years of observation and observation work at Wutai Commune of Dongtai County in 1980 and 1981. During the observation, we found that both inside and outside the grid For a time, there is an equal temperature value (we tentatively call it “isothermal value.”) If the temperature is higher than this temperature, the temperature in the net is lower than in the wilderness; if the temperature is lower than this temperature, The temperature in the woods was higher than in the wilderness, so we became interested in the temperature and collated it, trying to negotiate with our comrades who care about the work.