论文部分内容阅读
通过对湘中丘陵红壤区不同类型林分的定位观测,对林地不同年份因降雨量差异而产生的径流量、泥沙含量的差异进行对比分析。结果表明:降雨量较大的2010年林地的径流量、泥沙含量、径流系数均大于相对干旱的2009年;径流量、泥沙含量的大小与大雨量降雨的次数和降雨量密切相关。
Based on the observation and observation of different types of forest in the hilly red soil region in the middle part of Hunan Province, the differences of runoff and sediment contents caused by the difference of rainfall in different years were compared. The results showed that the runoff, sediment content and runoff coefficient of woodland in 2010 were higher than that in 2009 when the rainfall was heavy. The runoff and sediment content were closely related to the rainfall quantity and heavy rainfall.