吉林省半干旱地区樟子松大树移植技术

Techniques for transplanting big tree of Pinus sylvestris var.mongolica in semi-arid area of Jilin Province

针对吉林省半干旱地区绿化樟子松大树移植成活率低的问题,对其树冠体积与根系土坨体积的关系进行了试验研究,结果表明:树冠体积与土坨体积的比值与移植成活率成反比,即比值越大,成活率越低;移植成活率达到100%时允许的最大比值、亦是最经济比值为5.80,若比值大于5.80,则移植成活率呈现逐渐降低趋势。

The relationship of canopy volume and root - soil clump volume was analyzed according to the low survival in transplanting big tree of Pinus sylvestris var. mongolica in semi - arid area of Jilin province. Results showed that the volume ratio of canopy/root - soil clump was negatively related with the survival of transplantation, i.e. bigger ratio with lower survival. The biggest and economic canopy/root - soil clump volume ratio was 5.8 when the survival was 100%. The survival decreased ff the ratio above 5.8.