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人类活动使下垫面发生变化,不仅影响年径流、径流深、径流系数和最大洪峰流量的变化,也必然会影响到径流的年内分配,本次只做了人类活动影响下垫面变化后对年径流量的影响分析,逐步、深化次降水径流关系,暴雨与洪水,地表径流的汇流,四水转化和水文参数受人类活动影响下垫面改变后的相互关系,对今后的水利建设规划、设计、防洪抗旱预案的制定,水资源开发利用优化决策,都有十分重要的作用。
Human activities make the underlying surface change, which not only affects annual runoff, runoff depth, runoff coefficient and maximum peak flow changes, will inevitably affect the runoff distribution within the year, this time only human activities under the influence of underlying surface changes Annual runoff of the impact analysis, and gradually deepen the secondary precipitation runoff, storm and flood, surface runoff convergence, hydrological transformation and hydrological parameters under the influence of human activities under the surface of the interrelationships, the future of water conservancy planning, Design, flood control and drought preparedness plan, water resources development and utilization of optimal decision-making, have a very important role.