... grass minimum temperature 最低地面温度 grass moor 沼泽草原 grass pine forest 草本松林 ...
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grass marsh pine forest 草本沼泽松林
·2,447,543篇论文数据，部分数据来源于NoteExpress
The results indicated that the effect of mixed masson pine and oak forest on soil amelioration was the best, that of grass was the second and the pure masson pine forest was the worst.
结果表明：松栎混交林对土壤的改良效果最好，草地次之，马尾松纯林则较差。
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