【摘要】 通过多年对科尔沁沙地西部盐碱地提高造林成活率技术措施的研究,结果表明:采用开沟造林技术是适合当地特点的成功造林措施。造林成活率达到85%以上,林木生长量比一般整地造林方式高一倍。在地下水位浅、土壤盐渍化程度严重的地区,采用筑台地造林,其成活率可高达90%,造林5年后即可郁闭成林,林木生长量为一般造林地的2倍。采用上述2种整地造林技术,可有效改善土壤中养分和水分状况,同时土壤含盐量和pH值均明显下降,在沙地盐渍化轻度地区可采用穿透碱隔深穴造林措施。更多还原

【Abstract】 <Abstrcat> According to the research on methods to raise the survival rate of forestation in alkali-saline land in Keerqin Sandy Land, the results show that forestation by making furrows is a kind of successful method suited to local situation, which the survival rate can reach up to 85%. In a district with low ground water level and serious alkali-saline soil, the survival rate of forestation can reach up to 90% by use of building terrace. These two kinds of technology can effectively improve soil nutrient and water, decrease the salty content of soil and pH value obviously. The technology of penetrating alkali-board and planting trees in deep hole can be used in a district of light alkali-saline soil.更多还原