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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。
In view of the multi-environment stress such as wind and sand damage, drought and water shortage, soil erosion and animal disturbance, afforestation in Mu Us sandy land was carried out in Yulin City, and its growth and soil properties were tested. The results showed that the rate of afforestation preservation was as high as 96.67%, increased by 30% compared with no baskets, and the tree height, diameter, crown growth and aboveground productivity increased by 36.7%, 42.37%, 48.33% and 292.59% respectively. The utility model has the multiple effects of reducing the sand buried in the wind erosion, keeping the soil moisture, improving the soil nutrient and preventing the animal from damaging, thereby remarkably improving the afforestation effect.