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本文针对甘肃民勤地区梭梭(Haloxylon ammodendron) 林大面积衰退及死亡现象,根据大面积调查,探讨梭梭林的生长和林分密度及林地水分关系,得出了:由于密度过大所造成的土壤干旱,严重地影响梭梭林的正常生长,是民勤地区梭梭林衰亡的根本原因。并根据沙地水分状况及满足植物固沙所要求的盖度,参考西北梭梭荒漠梭梭林密度,提出民勤地区梭梭林成林合理密度供生产中参考。
According to the large-area survey, the relationship between Haloxylon ammodendron forest growth and stand density and woodland moisture was studied in this paper. It is concluded that due to the over-density Soil drought, seriously affecting the normal growth of Haloxylon ammodendron is the root cause of the decline of Haloxylon ammodendron. According to the water condition of sandy land and the coverage required to meet the requirement of plant sand fixation, the density of Haloxylon ammodendron forest in Northwest Haloxylon desert was referenced to the density of Haloxylon ammodendron forest in Minqin area for reference in production.