不同初植密度的红松果林生长及结实状况的调查

Growth and fruiting states investigation on different planting density of fruit-harvest forest of Pinus koraiensis

对不同初植密度红松果林生长与结实状况的调查结果表明,株行距2.0 m×2.0 m造林地块(18 a)结果率比株行距3.0 m×3.0 m造林地块低80%;在进行光合作用能力的主要指标上,2.0 m×2.0 m造林地块单株冠幅比3.0 m×3.0 m造林地块小18%,林冠下造林地块单株冠幅比3.0 m×3.0 m造林地块小140%。营造红松果林宜采用大株行距造林的方法。

The growth and fruiting states investigation results of different planting density of fruit - harvest forest of P/nus kora/ens/s indicated that the fruiting rate of planting sites （18 a）with planting spacing of 2.0 m × 2.0 m was 80% lower than that of 3.0 m × 3.0 m; Among the leading indicator of photosynthesis ability, crown width per plato of planting sites of 2.0 m × 2.0 m was 18% smaller than that of 3.0m x 3. Ore, and under the canopy, was 140% smaller than that of 3.0 m x 3.0 m. The large planting spacing forestation was a suitable method to build fruit- harvest forest of P/nus kora/ens/s.