| 释义 |
Pure forests
基本例句
纯林
Selaginella broadly distributes in the mixed and pure forests, and it holds an important position among understory vegetations.卷柏是地被层的唯一植物，在侧柏纯林和混交林中分布都很广，在林下植物中占有重要地位。
The average height and DBH of ? Fokienia hodginsii? in the mixed forest are 2 08 m and 1 50 cm greater than that in the pure forest,respectively.结果表明，混交林中，福建柏的平均树高和平均胸径，分别比福建柏纯林大2?08m和1?50cm。
The related factors in the mixed forest and pure forest were compared.摘要通过对比油松刺槐混交林与油松纯林内相关因素，研究其对赤松毛虫的自然控制。
The dynamic uptrend of diversity and evenness indexes between mix forest and pure forest are analogical, and on the contrary it is different.混交林中群落数量、丰富度及多样性指数多数月份高于纯林。
Acceding to the domestic and overseas experience, the technology and theory of approaching-nature forest management d the pure forests are discussed in the paper, to provide gist for restoring the ecological function and economic benefit of the community.针对这些实际情况，本文依据国内外研究成果对云南松纯林近自然化改造的技术和理论进行了探讨，为恢复云南松群落的生态功能和经济功能提供依据。Conclusions show that: Judging from water conservation and water use efficiency, mixed forest is better than pure forest, and in pure forest Kalopanax pictus>Koelreuteria panicutata. 混交林对水分的贮蓄和调节能力较强，但各林分供水性能差别不大。⎤ |