一、概况我区地处南亚热带。湿地松引种已有十多年历史,最早在德庆县官圩病虫害防治站,1966年引种,现仅存4株,1967年种28株(因栽于马尾松林下,生长极差);地区林科所1967年引种15亩(定植几年后曾移植过)。从1966年到1980年全区有90个点引种,面积共2万亩,绝大多数是1973年以后 I. Overview My area is located in the southern subtropics. Pinus elliotis has been introduced for more than ten years. The earliest introduction was in 1966 in Weiqingshan Pest Control Station in Deqing County, with only four existing and 28 in 1967 (extremely poor growth due to planting in Pinus massoniana forest). The area Linke the introduction of 15 acres in 1967 (colonization after a few years had transplanted). From 1966 to 1980, the whole region has 90 points of introduction, with a total area of ​​2 million mu, the vast majority are after 1973