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- Continental forests are reasonably resistant to newly introduced tree species,except in cases where they have been disturbed by heavy cutting or partial clearing. 陆地上的森林很自然地排斥新传人的树种,除非那个地方已被过度砍伐或部分砍光所扰乱。
- Continental forests are reasonably resistant to newly introduced tree species, except in cases where they have been disturbed by heavy cutting or partial clearing. 陆地上的森林很自然地排斥新传人的树种,除非那个地方已被过度砍伐或部分砍光所扰乱。
- Invasive Potential of Two Introduced Tree Species: Acacia mearnsii and Acacia dealbata 黑荆和银荆的繁殖扩散与入侵潜力
- introduced tree species 引进树种
- Some other applications of ornamental tree species were also introduced. 文中还介绍了观赏树木其它方面的用途。
- It's one of the tree species I have just learned to know. 我刚认识的树种。
- China has the world's most ancient tree species -- metasequoia. 中国有世界最古老的树种 --水杉。
- Dormancy Depth of Several North-east China Tree Species. 东北几个树种苗木的休眠深度
- Shanxi allspice tree species of medicinal and spice. 山西香果药用及香料树种。
- Lower slopes of the upper dry rainforest tree species. 为低山坡干性雨林中上层乔木树种。
- Acacia cincinnata,introduced to China from Australia resently,is a fast growing tree species with straight form and good quality in timber. 卷荚相思是从澳洲新引种的树种,具有生长迅速,干形通直,木材质量好的特点。
- As well as conserving local tree species, the botanical garden also contains introduced species which are being grown experimentally. 除了保存本地树种外,园区也引进外来种试植。
- It is 700 metres in length and introduces 20 tree species along the walk. 树径全长700米,介绍沿途20种树木植物。
- The Comparison of Frozen Resistance of Several Tree Species of Ilex L. 几种冬青属植物抗冻能力比较。
- Pioneer Tree Species for Forestation in Sandy Land--Hippophae rhamnoides L. 沙地造林的先锋树种-沙棘。
- For the majority of tree species this method appears to be very well suited. 对于大多数树种来说,这个方法看来都是适合的。
- The more steady ascendent tree species are Q. acutissima, L. formosana, etc. 稳定的优势树种为麻栎、枫香等。
- Tungoiltree is one of the endemic industrial oil tree species in China. 油桐是我国特有的工业用油料树种。
- Two tree species, gingkgo and metasequoia, were involved in experiment plots. 试验地包括银杏、水杉两个树种。
- Michelia chapensis is one of the endemic garden tree species in China. 乐昌含笑是中国特有的经济、园林树种之一;