黄土丘陵区水保林优化配置及抗旱示范推广成效分析  

The Promotion Effectiveness Analysis of Water-saving and Drought Model Reforestation of Optimal Allocation of Soil and Water Conservation Reforestation in Loess Hilly Region

作　　者：王怀彪[1] 潘鹏[1] 高保山[2] 

机构地区：[1]陕西省榆林市榆阳区林业工作站,陕西榆林719000 [2]西北农林科技大学,陕西杨陵712100

出　　处：《陕西林业科技》2009年第2期74-78,共5页Shaanxi Forest Science and Technology

摘　　要：黄土丘陵区控制水土流失的关键是科学调控坡面径流,本文根据径流调控理论,采取植物措施,在黄土丘陵区营建水保示范林并对其效益进行了监测,取得了如下结果:(1)节水抗旱整合配套造林技术的应用,能够将降雨径流资源化,缓解干旱缺水,使造林成活率达到88.6%,保存率达到80%以上,达到速生效果,综合效益提高34.1%。(2)优势树种选择与优化配置能够在短期内培育起较为稳定的植被群落,使当年植被覆盖率达到40%,5年后植被覆盖率达到70%以上。(3)示范推广造林水土保持效益明显,改善了当地的气候,使水土流失减小到500 t/km2.a以下,水土流失得到了治理。The key technology to control soil erosion was that controlled slope runoff Scientifically in loess hilly region.In this paper,Soil and Water Conservation reforestation was constructed,and the effectiveness was monitored by adopting plants measures in accordance with the Run-off control theory.The results were following:(1) Appling water-saving drought integrated technology could resources rainfall runoff,ease the drought and water shortage,so that survival rate reached 88.6%,retention rate of more than 80%...

关 键 词：黄土丘陵区 水土保持林 树种选择 优化配置 节水抗旱 造林技术 径流调控 

分 类 号：S727.22[农业科学—林木遗传育种]