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前言农田林网防护效益和小气候效应在国内、外已有许多报道,也做了大量的工作。本文通过对珠江三角洲农田林网内、外的太阳辐射和CO_2浓度的观测资料,应用SHARPPC—1500袖珍计算机,用BASIC语言编程上机运算,建立农田林网太阳辐射及CO_2浓度的模式,并通过数理统计建立CO_2浓度与农业气象因子的逐步回归方程。使定性分析转到定量分析去讨论林网内、外太阳辐射及CO_2浓度的变化规律。一、观测结果与建立模式 1984年6月29日至7月11日及10月18日至
Preface Farmland network protection effectiveness and microclimate effects at home and abroad have been many reports, also done a lot of work. Based on the observation data of solar radiation and CO_2 concentration inside and outside the farmland in the Pearl River Delta, this paper uses SHARPPC-1500 pocket computer to program on-board computer with BASIC language to establish the model of solar radiation and CO_2 concentration in farmland forest network. Mathematical statistics establish a stepwise regression equation of CO2 concentration and agrometeorological factors. The qualitative analysis is transferred to the quantitative analysis to discuss the changes of solar radiation and CO 2 concentration inside and outside the forest net. I. Observations and Establishment Models June 29 to July 11 and October 18 to June 1984