摘要
为 落实党和 国家关于 再造一 个山川秀 美的 大西 北和 黄土 丘陵 区 退田 还林 、封 山绿 化的战 略决策 ，依据多年 试验研 究和实践 结果，对 加速植被 建造的 有关问题 作了论述 。认为首 先要提 高对植被 建设重 要性的认 识，强化 全民的生 态意识 和可持续 发展战略 思想，下 决心改变 广种薄 收习惯， 退田还林 还草；重 点论述了 林草植 被建 设的 有关 科学 技术 问 题；提 出 依据 植被 地带性 分布规律 ，在不同 地区选择 相应地 带性植被 优势种 作为造林 种草主要 树草种 ，建造复层 混交植 被是提 高造林种 草成效的 关键。
In order to implement the strategic decision about reconstructing a northwest region with graceful hill and river as well as returning farmland to woodland and grassland, closing off and making the hills green in loess hilly region, according to study and practice results the some problems on expediting vegetation establishment were expounded. Firstly, deepening peoples understanding to importance of vegetation establishment, strengthening the whole peoples ecological consciousness and strategic ideology of sustainable development ,resolvedly giving up extensive cultivation, turning farmland into woodland and grassland. It was emphasized that according to the law of zone distribution of vegetation, the dominants of corresponding vegetation zone should be selected as fundamental species, and construct different types of artificial mult storied mixture vegetation in different zones. This is the key to increased effect of afforestation.
基金
国家"九五"科技攻关项目
