武定县湿加松引种试验初探

Preliminary Study on Introduction Experiment of Pinus elliottii×P.caribaea in Wuding County

对武定县2019年引种湿加松造林地块进行样地监测调查,分析海拔、土层厚度、整地方式、经营管理措施对湿加松树高和胸径的影响。结果表明:湿加松适宜在海拔1800~2300 m的温凉坝区和云南松原生分布区种植;中厚层土壤、阳坡、缓坡有利于湿加松生长;机械全垦,布设70 cm×70 cm×60 cm以上规格种植塘,基肥施入农家肥和复合肥,湿加松速生丰产杂交优势明显;造林后全面封禁,适时松土、除草、抹蘖,幼树生长健壮。

A sample plot survey and analysis were conducted on the introduction of Pinus elliottii×P.caribaea in Wuding County in 2019.The altitude,soil layer thickness,land preparation methods,and management had a significant impact on the height and DBH of Pinus elliottii×P.caribaea.The results showed that Pinus elliottii×P.caribaea was suitable for planting in the warm and cool dam area at an altitude of 1800~2300 meters and the original distribution area of Pinus yunnanensis;medium thick soil layer,sunny slopes,and gentle slopes were beneficial for the growth of Pinus elliottii×P.caribaea;mechanical reclamation,deployment of planting ponds over the size of 70 cm×70 cm×60 cm,and applying base fertilizer to farm manure and compound fertilizer,had a significant hybrid advantage in quick growth and high yield of Pinus elliottii×P.caribaea;comprehensive ban after afforestation and timely ripping,weeding,and tiller cutting were beneficial for the growth and health of young trees.