摘要
以黑龙江省孙吴县所引种的大果沙棘人工林为研究对象,采用空间代替时间的方法,在相似生境条件下选取不同林龄(11a,7a,2a)大果沙棘进行研究,并选取立地质量相近的撂荒地作为对照,进行时间方向的对比研究。同时选取相同林龄不同地形条件的样地,进行空间方向的对比研究。研究表明:不同林龄的大果沙棘人工林对土壤具有改良效果,并表现出林龄越高改良效果越明显。2年的大果沙棘人工林则与撂荒地的土壤情况类似,改良效果不明显。平地大果沙棘人工林生长的各项指标均好于低洼地与漫岗地,综合比较可以看出,土壤pH值可能是影响大果沙棘人工林生长的重要因素之一。
The article choose Hippophae rhamnoides Linn.variety from Russia as research object which introduced from Russia in Sunwu county,Heilongjiang province.The method of using space instead of time,in the similar habitat we choose different conditions,age（11 a,2 a,7 a） Hippophae rhamnoides Linn.variety from Russia,and select abandoned land which the quality of the site is similar to the plots as the comparative research direction in temporal variation.To choose the main Hippophae rhamnoides Linn.variety from Russia planting in Sunwu county under the terrain as sample plot of the comparative research direction in spatial variation.The research shows that Hippophae rhamnoides Linn.variety from Russia in different stand age has the effect of soil improvement,and the more effect of the elder stand age has high soil improvement,2 years of Hippophae rhamnoides Linn.variety from Russia and abandoned land has close soil conditions,the effect of the soil improvement is not obvious.All of the indexes of l Hippophae rhamnoides Linn.variety from Russia in the flatland are better than that in the lowland and rolling hill,comprehensive comparison can be showed that the soil pH is one of important factors to affect large berry cultivars of sea buckthorn growing.
出处
《水土保持学报》
CSCD
北大核心
2011年第1期162-166,共5页
Journal of Soil and Water Conservation
关键词
大果沙棘
土壤改良
地形
时空变异
Hippophae rhamnoides Linn.variety from Russia
soil improvement
terrain
temporal and spatial variation
