1976年以来,我场引种火矩松,湿地松造林250余亩,分别栽植于山区、丘陵区等不同立地条件下.为探讨国外松在我场的生长情况,我们分别对三年生的幼林进行了调查和初步观察,现初步整理如下,供参考:一、引种地自然概况引种地处豫鄂两省交界的大别山北麓,属江淮流域,北纬37°57′,东径114°18′.林地海拔高一般为200米左右,土壤为棕色森林土,山区土壤深40厘米以上,质地疏松,湿 Since 1976, my field of introduction of Pinus sylvestris, Pinus elliottii plantation more than 250 acres, were planted in mountainous areas, hilly areas and other different site conditions.In order to explore the growth of foreign pine in my field, we respectively three-year-old young forest Investigations and preliminary observations are now prefaced below for reference: First, the introduction of natural profiles introduced at the junction of Henan and Hubei provinces at the foot of the northern foot of the Dabie Mountains, is the Jianghuai River Valley, latitude 37 ° 57 ’north latitude and longitude 114 ° 18’. Forest land elevation is generally about 200 meters, the soil is brown forest soil, mountain soil more than 40 cm deep, loose texture, wet