【摘要】 针对毛乌素沙地造林受到风沙危害、干旱缺水、土壤贫瘠、动物干扰等多重环境胁迫问题,在榆林市开展"套篓造林"技术试验,并对其生长量和土壤性状进行测定。结果表明,套篓造林保存率高达96.67%,比不套篓提高30%,树高、地径、冠幅生长量和地上生产力分别提高36.7%、42.37%、48.33%和292.59%,且该技术具有减轻风蚀沙埋、保持土壤水分、改善土壤养分、阻止动物危害等多重功效,从而显著提高了造林成效。更多还原

【Abstract】 For dealing with multiple environment threats from sand storm,drought weather,poor soil and animal interference in forest plantation of Mu Us sandy land,a new plantation technology by using basket were applied in Yuling city,and several key indicators such as tree growth,soil properties and biodiversity index were measured.The results showed that the survival rate after using basket was improved to 96. 67 %,improved 30 % compared with none-basket plantation,indicators on tree height,ground diameter,canopy coverage and above-ground productivity were all improved 36. 7 %,42. 37 %,48. 33 % and 292. 59 % respectively. In addition,this plantation technology plays a multiple function role in reducing wind erosion and sand burial,keeping soil moisture,improving soil nutrient,and preventing animal interference,therefore this technology improved the effection of tree plantation in Mu Us sandy land.更多还原