南昌工程学院学报
南昌工程學院學報
남창공정학원학보
JOURNAL OF NANCHANG INSTITUTE OF TECHNOLOGY
2011年
6期
54-57
,共4页
江淼华%郭剑芬%谢锦升%王维明
江淼華%郭劍芬%謝錦升%王維明
강묘화%곽검분%사금승%왕유명
水土保持%封山育林%降雨%裸露地
水土保持%封山育林%降雨%裸露地
수토보지%봉산육림%강우%라로지
soil and water conservation%forest conservation%rain fall%bare land
运用径流小区法研究了闽北封山育林地的水土保持效应,结果表明:封山育林的保水保土效应显著,封山育林地的年径流量为18.90mE,是裸露地年径流量的1/30;年土壤流失量为27.51(kg·hm^2)是裸露地土壤流失量的1/1900.说明封山育林措施能起到良好的水土保持效果,尤其是在降雨多发的夏季及春季,能起到良好的调蓄降水,降低降雨对土壤的侵蚀作用.
運用徑流小區法研究瞭閩北封山育林地的水土保持效應,結果錶明:封山育林的保水保土效應顯著,封山育林地的年徑流量為18.90mE,是裸露地年徑流量的1/30;年土壤流失量為27.51(kg·hm^2)是裸露地土壤流失量的1/1900.說明封山育林措施能起到良好的水土保持效果,尤其是在降雨多髮的夏季及春季,能起到良好的調蓄降水,降低降雨對土壤的侵蝕作用.
운용경류소구법연구료민북봉산육임지적수토보지효응,결과표명:봉산육림적보수보토효응현저,봉산육임지적년경류량위18.90mE,시라로지년경류량적1/30;년토양류실량위27.51(kg·hm^2)시라로지토양류실량적1/1900.설명봉산육림조시능기도량호적수토보지효과,우기시재강우다발적하계급춘계,능기도량호적조축강수,강저강우대토양적침식작용.
The effect of forest conservation on soil and water conservation in northern Fujian Province is studied with the method of runoff plot in the paper. The results indicate that the effect of forest conservation on soil and water conservation is of great significance. The annual runoff of the forest conservation is 18.90 mm,which is 1/30 of that of the bare land. The annual soil loss of the forest conservation is 27.61 ( kg.hm^-2 ) ,which is 1/1 900 of that of the bare land. It suggests that the forest conservation measures have a good effect on soil and water conservaticn, especially during spring and summer. It plays a good role in regulating the rainfall and reducing the soil erosion brought by the rainfall.