在阳江罗琴林场连续4年进行了加勒比松幼林环境观测。
The article analyses the soil fertility degradation in yangjiang Caribbean pine planting site, the project has been carried out for 4 years.
结果表明，变种地点间生长差异极为显著，西北部的加勒比松生长好于东部的；
The experimental results showed that the growth of P. caribaea between two sites were different significantly.
结果表明，变种地点间生长差异极为显著，西北部的加勒比松生长好于东部的；
The experimental results showed that the growth of P. caribaea between two sites were different significantly.
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