科尔沁沙地西部樟子松抗旱造林技术的试验研究

Study on Drought-resistant Afforestation Techniques of [WT4,4”HX]Pinus sylvestris var.

为解决科尔沁沙地樟子松造林成活率与保存率低的问题 ,进行了造林地立地类型选择、不同苗木规格及施用“三保剂”的试验。结果表明 :地面有植被覆盖条件下 ,幼树高生长高于没有植被覆盖的 ;以 5年生带土坨装袋大苗和 3年生移植苗苗木成活率、保存率均优于 2年生裸根苗 ;施用保温、保肥、保水的“三保剂”,土壤含水量比对照提高 35%～ 50 % ,促进了根系生长 。

In ordre to solve the low afforestation survival and preserving percent of Pinus sylvestris var. mongolica Litv. in Horqin sandy land, experiments on choice of site type, different seedling standards and use of “three protection agent” have been done. The results show that height growth of sapling covered with vegetation is higher than no vegetation; the survival percent of 5 year old sapling with soil mass and 3 year old transplant are higher than 2 year old truncated plant; soil moisture content increases 35%~50% than CK by using “three protection agent”.It's one of the favorable measurements to increase afforestation survival percent and sapling growth.