【摘要】 10年来石灰岩山地的治理证明 ,水土保持技术在生态环境建设中起到了关键性作用。水平阶整地可使土壤含水量比未整地高 5 % ,生物地堰构成疏薄型防护林带后 ,光照平均减弱 8% ,风速平均降低 2 0 %以上 ,空气湿度平均提高 1 8%。更多还原

【Abstract】 It is turned out from ten year limestone mountainous region harnessing experience that soil and water conservation played a key role in ecological environment construction.Level terrace site preparation can increase soil moisture capacity 5% compared to original preparation.After ecological weir being composed of sparse protective forest,8% sunlight is weakened averagely,20% wind speed is droped on an average and 18% air humidity is raised.更多还原