沙地沙棘苗冷藏造林技术研究

为了提高半干旱区沙漠化土地的造林成活率与保存率,文章对一年生沙棘苗进行了冷藏处理和造林抚育试验。试验发现:冷藏可以延长苗木的保存期,使造林得以在春季干旱多风季节之后进行,避开了干旱与大风对苗木的危害,有效地提高造林的成活率,同时也降低了造林与抚育的成本。与常规造林相比,冷藏苗造林可以节省约50%左右的费用。试验还发现沙棘苗木在冷藏过程中,适度的温度控制以及冷藏后与造林前的常态恢复训练与苗木冷藏处理后质量的好坏有着密切的联系。训练过程中要注意保持一定的湿度,训练应该选择在阴天或阴凉处进行,避免光线直射。人工开沟深坑造林技术也是提高冷藏苗造林成活率的重要技术之一。

Research on Techniques of Planting Sea-buckthorn Seedlings Stored at Low Temperature on Sandy Land

In order to improve the survival rate and remaining rate of seedlings after planted, one - year - old sea - buckthom （ Hippophae rhamnodes L. ） seedlings were stored at temperature around - 10℃ for planting. It was found that low temperature can greatly elongate the storage life of seedlings for planting over the windy and dry season in semi - arid region and greatly improve the survival rate and remaining rate of seedlings. Low temperature can also lead to reduction of cost by the rate about 50%, compared to the conventional planting. It is also noted that proper humidity during storage and training of seedlings for conventional state immediately after storage and before planting was crucial to the survival of planted seedlings. Planting seedlings in rowed holds digged out in canals was important to keep high surviving rate.