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- arragement of tree species 树种配置
- 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。
- Application of cone calorimeter for the assessment of the fire resistance of tree species. 利用锥形量热仪分析树种阻火性能。
- Mckenny H J A, Kirkpatrick J B. The role of fallen logs in the regeneration of tree species in Tasmanian mixed forest[ J ]. Austrilian Journal Botany, 1999,47:745 - 753. 班勇徐化成.;兴安落叶松老龄林落叶松林木死亡格局以及倒木对更新的影响[J]
- O. hosiei is on upper layer of tree species and has significant relative dominance and absolute advantages in competition for illuminance in the forest. 红豆树在群落中处于乔木上层,为林中霸王木,具有较显著的相对优势度,成林后对光照条件的竞争具有绝对优势。
- The new record-breaking tree was discovered in Dalarna in 2004 when Swedish researchers were carrying out a census of tree species in the region, Kullman said. 卡尔曼说,这棵“打破纪录”的树是2004年瑞典研究人员在达拉那一带进行树种调查时发现的。
- The writer is of the opinion that some site factors, such as climate, microtopography and soil are intimately correlated with the distribution and growth of tree species. 针对江苏海岸各种立地环境条件,论述了如何选择先锋树种和后继树种,使海岸造林取得预期效果。
- They built a primitive shelter out of tree trunks. 他们用一些树干建造了一个简陋的棚子。
- What kind of/sort of tree is that? 那是什麽树?
- The number of tree species that contributed to CWD increased along the successional sequence with 7, 18, and 29 species in the Pinus massoniana, mixed coniferous broad-leaved, and monsoon evergreen broad-leaved forest sites, respectively. 组成马尾松林、针阔叶混交林和季风常绿阔叶林CWD的树种数量分别为7、18和29;
- From the viewpoint of height class structure,the compositional complexity of tree species H(X),structural complexity of tree species H(Y|X),and complexity of whole community H(X,Y)all increased first,but decreased then with the succession. 按高度级结构计算的群落树种组成复杂性H(X)、层次结构复杂性H(Y|X)、群落总体复杂性H(X;Y)均呈先增加后减小的趋势:H(X)指数值在演替初期阶段为2.;96;演替中期增加到3
- Pinus sylvestriformis and P. sylvestris have been introduced to Zhanggutai sandy area since 1981 aiming at the shortage of vegetation and unitary structure of tree species in Keerqin Sandland. 摘要针对科尔沁沙地治沙植物匮乏、树种结构单一等问题,自1981年开始,在章古台沙地引种长白松和欧洲赤松。
- We made camp under the shade of trees. 我们在树荫下宿营。
- A row of trees screened our view. 一排树木挡住了我们的视线。
- A fringe of trees stood round the pool. 池塘四周耸立着一圈树木。
- A belt of trees grew between the two fields. 两块田之间有一条树木带。
- Distribution area of tree species 树种分布区
- The reddening sky threw into relief a line of trees on the horizon. 通红的天空使地平线上的一行清晰可见。
- The place is destitute of trees. 那地方没有树木。
- Shanxi allspice tree species of medicinal and spice. 山西香果药用及香料树种。