宁夏干旱区梭梭造林试验研究

在宁夏干旱区3种不同立地条件下开展梭梭人工造林试验的结果表明,半流动沙丘、丘间低地、沙障防护沙地3种不同立地类型造林成活率分别为66%、62%、68%,保存率为43%、55%、59%。这证明通过人工布设沙障机械固沙,能够有效防止风沙流动对梭梭幼苗的侵蚀,提高半流动沙丘迎风坡面沙地梭梭造林保存率。

Study on Haloxylon ammodendran Afforestation Experiment in Ningxia Arid Area

Survival rate, preservation rate, crown diameter, basal diameter and their growth and development were carried out and record by artificial afforestation test in three kinds of different site conditions of in Ningxia arid areas. The results showed that the survival rate of afforestation of the semimobile dunes, interdune lowlands, sand barrier protective sand were 66%, 62%, 68%, retention rate were 43%, 55%, 59%, respectively. The study also have shown that mechanical fixing artificial sand barrier can protect Haloxylon seedlings against sand flow of erosion and improve the preservation rate of semi-mobile dune windward slopes.