湿地松短周期纸浆林集约栽培技术

Silvicultural techniques of slash pine pulp plantation under short rotation

从立地选择、整地方式、苗木质量、施肥方式、林分初植密度和抚育管理等方面对湿地松短周期纸浆林集约栽培技术措施进行了比较研究。结果表明：初植密度２５００株·ｈｍ－２（２．０ｍ×２．０ｍ）和３３３４株·ｈｍ－２（２．０ｍ×１．５ｍ）的林分采取集约经营管理，在９～１０年生时，林分生长量可达１１．１９～１２．３１ｍ３·ｈｍ－２，超过了我国“八五”攻关项目中南方集体林区短周期纸浆林培育年生长量１０．５ｍ３·ｈｍ－２这一考核目标。

The study was done in site selection,land preparation,seedling grades,fertilization methods,afforestation density and rotation of forest and crop,etc The results showed that the annual volume increments of two stands,which were at 9～10 years old and with a afforestation density of 2 500 stalks per hectare(2 0 m×2 0 m)and 3 334 stalks per hectare(2 0 m×1 5 m)respectively,could reached 11 19～12 31 m 3·hm -2 The values are greater than the criterion(10 5 m 3·hm -2 ·a -1 )of planting pulp plantation with short rotation in southern collective forest area stipulated in National Key Technologies during the eighth five year plan