n.重新植林

A reafforestation programme has favoured spruce, pines larches and fir. 再造林工程更青睐北美云杉、松树,落叶松和冷杉。

Finally,some suggestions were also presented on future research,policies and management demands in reafforestation projects on farming steep lands. 并对退耕还林工程中的科技支撑、管理与政策措施提出了建议.

Based on 3 years locating and semi-locating observation, the amount of soil loss in runoff from yellow soil of hilly areas by de farming and reafforestation in Guizhou province. 通过3年定位、半定位观测,对贵州山区退耕还林(草)地进行采样并采用无界径流小区法收集地表径流样品,探讨贵州山区退耕还林(草)措施对贵州山区土壤养分流失以及水土保持效益的影响。

Zhang L X, He Y.De-farming and reafforestation policy efficiency review and analysis of west development[J].Scientia Silvae Sinicae, 2002, 38(1): 130-135. [3]张力小

As the implementation of reafforestation project and forbiding grazing policy in Ningxia Autonomous Region,after sloping fields transforming project,the vegetation recovered to some extent. 随着退耕还林草工程和自治区人民政府全区范围内禁牧政策的实施,经过人工坡地改造工程,该区自然植被得到了一定的恢复。