摘要
辐射过程的研究是水热平衡的基础与出发点．本文通过实验观测，对辐射平衡方程及Rn=Q（1-A）-F0的各项分别进行了荒漠──绿洲间及绿洲不同农田作物间的对比分析．
The research on radiation balance is the basis of the research on water and heat balance. In this paper, all the components of radiation balance equation Rn=Q (1-A)-Fo are analyzed based on the observcd data. The rcsults are as following: (1) The contrast of reflectivity A from different fie1ds and between oasis and desert is great in daytime, but their contrast of Q(1-A) is small. It is obvious that A is not the important reason for bringing about the contrast of Rn between desert and oasis. (2) The contrast of effoctive radiation FD in the different fie1ds and between oasis and desert is complicated in daily changing course. The amount of Fo in oasis is less than that of desert, but Fo of the dir ferent fields is not remarkable. It is obvious that effective radiation is the rnain factor which causes the contrast of Rn between desert and oasis. (3) The contrast of net radiation Rn is small between the different farmlands, but it is remarkable between oasis and desert, which is just as the main reason to cause the big contrast of water and beat condihons between oasis and desert, but a small contrast within a oasis.
出处
《干旱区地理》
CSCD
北大核心
1996年第3期72-79,共8页
Arid Land Geography
基金
国家自然基金!"塔里木绿洲地表水热平衡过程与机制的实验理论研究"
