总侵蚀 meaning in English

gross erosion

The results indicated that the ree tracer technology has high precision to quantify the spatial - temporal process of soil erosion ; in earlier rainfall course , the development degree of sheet and nil erosion was general equation ; otherwise in the following course , the rill erosion was dominant in the total erosion , its average erosion acceleration and the average erosion rate was 15 and 9 times of sheet erosion , respectively ; in the end of experiment , the rill erosion took up 90 % of total erosion amount ; the section of slope bottom occupying about 1 / 3 slope area was active erosion segment in this experiment
结果表明： ree示踪技术对定量研究土壤侵蚀具有较高的精度；降雨前期，片蚀与细沟侵蚀发育程度基本相当；后期细沟侵蚀占据坡面侵蚀的主导地位，其侵蚀平均加速度和平均侵蚀率分别是片蚀的15倍、 9倍；试验结束，细沟侵蚀占据坡面总侵蚀的90 % ；本试验条件下，坡面下1 / 3区域为侵蚀活跃带。