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利用西双版纳人工橡胶群落试验集水区内测流堰１９９３年５月至１９９４年１２月的径流量与降水量资料，经分析结果表明：１）径流量年变化趋势与降水量相似，并且具有较好的相关性，雨季径流量大于干季径流量８～１０倍。径流量最小峰值出现在５月份，最大峰值出现在７月份；２）利用总径流量与降水量资料综合考虑分离出地下径流量与地表径流量；地表径流量较地下径流量偏小７０．３ｍｍ；地表径流与地下径流分别占总径流量的４５．３％和５４．７％。
Based on the data of runoff and precipitation from May 1993 to December 1994 in weighed area of Xishuangbanna Artificial Rubber Community, the results show that: 1) The annual trend of runoff is similar to that of precipitation, Good correlation, rainy season runoff is greater than the dry season runoff 8 to 10 times. The minimum peak of runoff occurred in May and the peak appeared in July. 2) The total runoff and surface runoff were separated by using the total runoff and precipitation data. The surface runoff was 70.3mm smaller than the underground runoff ; Surface runoff and underground runoff accounted for 45.3% and 54.7% of the total runoff respectively.