梭梭人工林密度研究  

THE STUDIES ON ARTIFICIAL FOREST DENSITY OF HALOXYLON AMMODENDRON

作　　者：李银芳[1] 杨戈[1] 

机构地区：[1]中国科学院新疆生物土壤沙漠研究所

出　　处：《中国沙漠》1998年第1期22-26,共5页Journal of Desert Research

摘　　要：对秋灌梭梭人工林进行了２ｍ×４ｍ、２．５ｍ×１．５ｍ和天然荒漠林对照的密度研究。结果表明，２．５ｍ×３ｍ，１３３３株／ｈｍ２作为初植密度和成林密度是较为合适的。土壤高含水量层的深度范围和时间过程构成的面积大，土壤水减少量和蒸散量小，能适时进入成林阶段的郁闭状态，现虽然生长状况一般，但水分供需平衡。而且在不灌溉情况下，仅靠降水不会出现固沙林衰亡的恶果。The contrasting experiment on the planting denstity of Haloxylon Ammodendron was carried out. The studing results to 4 dealings which including 2 m×4 m,2.5 m×3.0 m,1.5 m×1.5 m and natural density showed that the suitable planting density should be 2.5 m×3.0 m or 133.3 plants per hectare. In such case, the soil had high water bearing stratum which could run longer time under smaller evaporation and the plants would go into the closing state in time; Moreover, even if with no irrigation and only depended on precipitation, the sand binding forest couldnt degrade or die except for a common growth level.

关 键 词：固沙林 梭梭 密度 水分平衡 梭梭人工林 

分 类 号：S727.23[农业科学—林木遗传育种]