林分生長量의 推鄭에 關한 硏究(第2報) : 單純無作爲抽出法을 中心으로 by the Simple Random Sampling = Studies on the Estimation of Stand Volume Increment in Kyung Hee University Experiment Forest (Ⅱ)

다국어 초록 (Multilingual Abstract)

This Study is to estimate the stand yield in future base on the mensuration of the volume growth in the last 10 years.
Surveying district is the second block (20.80ha) of Kyung Hee university experiment forest on the Gaegok-ri, Gapyung-yeup. Gapyung-gun, Kyung gi province.
The stand is composed of mainly the Japanese red pine and oak tree processing the survey of stands was conducted by taking the core at the D.B.H. of the sampling tree, which was selected by the simple random sampling.
The results are as following.
1. The regression between the diameter and diameter increment:
1) Japanese red pine I^=0.6934-0.0050D
2) oak tree I^=0.3528+0.0153D
2. The estimated regression of confidence interval of the diameter increment:
1) Japanese red pine S^(2)I^=0.01856(0.31550-0.02734D+0.00068D^(2))
2) oak tree S^(2)I^=0.01254(0.18251-0.02154D+0.00071D^(2))
3. Annual increment volume in the Japanese red pine stand is 4.6788㎥/ha and the oak tree stand 4.0980㎥/ha and Its effective range are 5.1939∼4.1599 ㎥ of Japanese red pine and 4.3878∼33.8002㎥ of oak tree stand.
4. Annual growth rate of total volume.
◁표삽입▷ (원문을 참조하세요)
5. The stand volume and increment growth of all stands
1) Annual volume growth is 8.1768㎥/ha and confidence interval is 9.5817∼7.9601㎥
2) Annual volume growth rate is 8.28% and error 9.17%