Double mass curve is a simple,visual and practical method,and it is widely used in the study of the consistency and long-term trend test of hydrometeorological data.In recent 30 years,Chinese researchers analyzed the effect of soil and water conservation measures and land use/cover changes on runoff and sediment using double mass curve method,and have achieved good results.The theory of double mass curve is based on that the two factors(or variables) are proportional.As a result,in the application of double...
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