论文部分内容阅读
辽宁省阜新县七家子水土保持实验站,1954年以来依据不同沟壑侵蚀情况,营建了几种不同类型的沟底固土林,经过实验观察效益显著。一栽植方法1.沟底造林:适宜在沟宽15—40米的沙质沟或土沟采用。办法是:沿沟两侧,大体顺水路成燕翅式栽植,燕翅伸长6—10米,适当留出水路。其顺水角度,即燕翅形树行与水流方向之间的夹角为25—35度,做单沟双行直立埋干,沟宽1.0米,深0.9米,沟间距2.0米。每沟内植杨树两行,行距1.0米,株距0.6米。在纯沙土上栽植前应适量换土,将填入沙土踏实,再在两沟坡营造固坡林。(如图一图二)
Seventeen sub-stations of soil and water conservation in Fuxin County, Liaoning Province, since 1954, several different types of ditch-fixing forest have been constructed based on the erosion of different gully areas. The experimental results show significant benefits. A planting method 1. Groove at the end of afforestation: suitable for 15-40 meters in width of the ditch or soil ditch used. Approach is: along the ditch on both sides, generally along the waterway into a wing-type planting, Yan-wing elongation of 6-10 meters, appropriate to leave the waterway. The cis-water angle, that is, the angle between the wing-shaped tree line and the direction of the flow of 25-35 degrees, to do single-trench double row vertical buried stem, groove width of 1.0 m, 0.9 m deep, trench spacing of 2.0 meters. Poplar planting two rows of each groove, spacing of 1.0 meters, spacing 0.6 meters. Appropriate amount of soil in the pure sand before planting, will fill the sand and practical, and then in the two slope slope to create solid slope forest. (Figure 1 Figure 2)