Finding out the causes of formation to low quality forest and their classification are the bases for the evaluation and future reclamation of stand.
低质低效林的成因和分类是对其林分作出评价和改造的基础。
However, supply is harder to find as forest quality declines and the share to the collector remains low.
但是，由于森林质量下降供应变得越发困难，采集者的收益变低。
The country's forest resources feature inadequate supply, low quality and uneven distribution.
森林资源总量不足、质量低下、分布不均。
Low yield poor-quality bamboo forest transformation, press 80 yuan per Mu to give one-off grants.
低产劣质竹林改造，按每亩80元给予一次性补助。
Therefore, Jiufeng Forest Park's high-speed, low-quality mode, makes the establishment of Jiufeng Forest Park Tourism Resource Management Information System imperative.
因此，鹫峰森林公园的旅游业的高速度低质量的模式，使得建立鹫峰森林公园旅游资源管理信息系统势在必行。
The results above provide a scientific reference for impact of logging on function of soil and litter and low-quality forest management.
以上研究结果可为采伐对土壤和枯落物功能影响的研究和低质林经营提供科学参考。
In order to restoring the original forest structure and function, improving the quality of forest stands, it is necessary to transform low-quality forest.
为了改善林分质量、恢复原有森林结构和功能，有必要对低质林分进行改造。
There are large areas low-quality forest with low canopy density, low productivity because of over-harvesting operations and natural disasters.
由于多次过量采伐干扰及自然灾害，小兴安岭林区形成大面积郁闭度较低、生产力低下且林相衰败的低质林。
The timbers of our country man made forest have poor quality and some defects, which indicate their low strength and unstable size.
我国目前人工林本材材质差、缺陷多，主要表现在强度低、尺寸稳定性差。
The timbers of our country man made forest have poor quality and some defects, which indicate their low strength and unstable size.
我国目前人工林本材材质差、缺陷多，主要表现在强度低、尺寸稳定性差。
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