您要查找的是不是:
- Nair KSS,2001.Pest Outbreaks in Tropical Forest Plantations:Is There a Greater Risk for Exotic Tree Species? Jakarta:Center for International Forestry Research.47-61. [潘志刚;游应天;1994.;中国主要外来树种引种栽培
- introduction of exotic tree species 林木引种
- Influence of Extreme Climatic Condition on Exotic Tree Species in Horqin Sandy Land 科尔沁沙地极端气候条件对外来树种影响的研究
- Study on Selection of Appropriate Introduced Source Regions of Exotic Tree Species for the Tropics and South-Subtropics of Guangxi, China 广西热带南亚热带适宜的国外树种引种来源区选择的研究
- The exotic tree species 外来树种
- exotic tree species 外来树种
- While exotic species should not be excluded for special reasons or purposes, native tree species should be preferred as a matter of principle. 不应因特别原因或用途而完全排除外来的品种,但仍应以本地品种为优先。
- 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。
- Cunninghamia lanceolata,Pinus massoniana and exotic pines were selected as main forestation tree species in the forestation project in Zhejiang province granted loan by the World Bank. 浙江省主要造林树种杉木、马尾松、国外松,通过大规模项目造林实施与试验示范林的测试后,对其商品林经营技术及推广应用,进行了较为系统的总结。
- This wooded country of exotic trees and flowers is the haunt of rare Birds and animals. 这里到处是密林,奇花异草遍地丛生,珍禽异兽出没其中。
- 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。
- 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。
- 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。