coppice forest的例句大全

The results showed that no benefit would be derived from black locust coppice forest with a rotation age beyond 20;

研究结果表明；以20a以上的轮伐期经营刺槐萌生林在经济上是不合算的；

The results showed that owing to better layers composition and more litters and roots, abilities of holding water and preventing erosion of Oriental oak forest, Black locust forest and coppice forest of Black locust are stronger than that of others.

研究表明，栓皮栎林、刺槐林和矮刺槐林具有较好的层次结构、较大的枯落物积累量及根系数量，保水防蚀能力较强；

With a discounting rate not less than 12%, the investment on the coppice forest manage-ment on the ⅲ land site is not reasonable;

贴现率不低于12%时，在（？）立地级经营刺槐萌生林是不合理投资；

Under same growth conditions, there would be relative higher volume and productivity in coppice forest than in seedling crop of Robinia pseudoacacia.

与实生林相比，在相同的生长条件下，萌生林具有较高的木材量和生产力。

Preliminary study on Coppice Forest of Robinia pseudoacacia

刺槐萌生林的初步研究

And the rotation age at the 8th to 13th years was reasonable for coppice forest management of black locust.

以培育干材和小径级矿柱材等工业用材为目的，对刺槐萌生林实施8～13a短轮伐期作业法，从经济效果最佳角度考虑是比较合理的。

Sensibility index of tree rings are rather different between two largest stems and among stands, they tend to be larger for coppice than that for high forest of black locust?

年轮宽度的灵敏度指数在林分内最大木和次大木之间和在林分间差异都较大，刺槐矮林趋于比乔林大。

A study on coppice with poplar clone ⅱ-69 for pulp-producing forest

Ⅰ－69杨纸浆用材林萌芽更新的研究