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用量水堰法研究了九连山常绿阔叶林小流域的流出特性。3个小流域的特性是相似的。年流量(Q)随年降水量(P)的增多而增加,Q/P 为38.3%～64.6%。P-Q 的差数在718mm～1125mm 之间,大体上是稳定的。根据流量曲线推定,小流域的滞容水能力在流量水平0.04mm/h～2mm/h 之间不少于255mm～285mm。在雨季观测到的暴雨最大流量水平为8.9mm/h。仅在雨季骤性暴雨时才可能产生小的表面流出峰,其流量约占暴雨雨量的1%～2%。从10月至翌年1月共4个月的旱季流量合计一般在124mm～164mm 之间,基本上是稳定的。旱季流出主要是深层的基底(地下水)流出,因而与旱季的降水量无明显关系。
The amount of weir method was used to study the outflow characteristics of the small watershed in the evergreen broad-leaved forest in Jiulianshan Mountain. The characteristics of the three small watersheds are similar. Annual flow (Q) increased with the increase of annual precipitation (P), Q / P was 38.3% ~ 64.6%. P-Q difference between 718mm ~ 1125mm, is generally stable. According to the estimation of the flow curve, the stagnant water capacity of small watershed should not be less than 255mm ~ 285mm at the flow rate of 0.04mm / h ~ 2mm / h. The maximum level of rainstorm observed during the rainy season is 8.9 mm / h. Small surface runoff peaks may occur only during sudden rainstorms, which account for about 1% to 2% of storm rainfall. The dry season flow from October to January of the following four months totaled between 124mm and 164mm, which was basically stable. Outflow in the dry season was mainly from the outflow of deep basins (groundwater), and therefore had no significant correlation with the precipitation in the dry season.