Furthermore , soil and water conservation also resulted in the underground flow decrease but its decrease extent is smaller than of surface flow 水土保持也使河川地下径流量有所减少，但降低程度较地表径流量小。
( 2 ) through the analysis of the dynamic trends of annual runoff of yeerqiang river , the change trends of annual runoff is acquired ( 2 )对叶尔羌河年径流量动态变化趋势进行了分析，得出了叶尔羌河年径流量变化趋势。
There is also a difference in all rivers in this region . annual runoff of wudinghe river reduced notably in both general tendency and periodic change 陕甘宁地区河流径流量总的变化趋势为减少，但各条河流变化情况不同。
Increased surface runoff was found in the mountainous areas of the southwest and northeast , and in some areas along the south coast 地表径流量升高的地区以西南部及东北部高山地区较为明显，在南部沿海部分地区亦有类似现象。
In this paper , the characteristics and tendency of annual runoff changes of wudinghe river , malianhe river and qingshuihe river are analyzed 河流径流量在自然和人为因素的共同影响下而变化，变化特征复杂，趋势具有不确定性。
By statistical computation we prove that the confluence process of jiangjia ravine obeys the power - law frequency - area distribution 本文通过统计计算得到，蒋家沟泥石流汇流和流量过程在暴发频率与泥石流总径流量上服从负幂律分布。
In a year river flow has two peaks that respectively are march and august . there is different decrease in the different months by soil and water conservation 在一个日历年内，径流量分配具有“双峰型”特征， 3月和8月为两个峰值月份。
Calculation of natural runoff of the yellow river is the basic work for water resource planning , distribution , production and scientific research of the river 黄河流域天然径流量的计算是黄河流域水资源规划、调度、生产、科研的基础性工作。
On average , when compared with no input , the amount of runoff was saved by 17 % under the low input and 26 % under the high input treatment 与不投入相比，低投入处理平均有17 %的径流被土壤保持下来，而高投入处理则平均有26 %的径流量被保持下来。
The stability of aggregates of t3 , t2 was very low and multilevel pore was few , so soil splash erosion and sediment was very high . 5 T3 、 t2团聚体发育差，缺乏多级孔隙，形成的高径流量和溅蚀率使t2 、 t3的产沙率在相对大的数值范围内变动。
