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本文研究了油松(Pinus tabulaeformis Carr.)人工林在河北兴隆县的生长与土壤深度、坡向和母质的关系。研究表明,它的高生长过程可以划分为四个阶段:5年前,生长缓慢;在5—10年时,年生长加速;在10—16年为生长的全盛期;经过16—20年后,生长下降。土层的发育和它的水分养分状况,以及土壤深度强烈的影响松树根的发育和地上部分的生长。在相同的土层深度下,林木长在北坡比南坡要生长得快些。文章还比较了花岗岩和黄土母质对油松生长的影响。油松在页岩发育的深厚土壤上生长最好。
In this paper, the relationship between the growth of Pinus tabulaeformis Carr. Plantation in Xinglong County of Hebei Province and soil depth, aspect and parent material was studied. Studies show that its high growth process can be divided into four stages: 5 years ago, slow growth; 5 to 10 years, annual growth accelerated; 10-16 years for the growth of the heyday; after 16-20 years, Growth decline. The development of the soil layer and its moisture and nutrient status, as well as the soil depth, strongly influence the development of the pine root and the growth of the aerial parts. At the same soil depth, the trees grow faster on the northern slope than on the southern slope. The article also compared the granite and loess parent material on the growth of Pinus tabulaeformis. Pinus tabulaeformis grew best on deep soil with shale development.