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- mixed tree species composition 混交树种组成
- Tree Species Composition Index and Its Application 树种组成指数及其应用
- Patterns of Tree Species Composition of Secondary Natural Vegetation along an Altitudinal Gradient on Earthy-rocky Mountainous Area in Western Shanxi Province 晋西黄土高原天然次生林木本植物垂直分布格局
- mixed tree species 混交树种
- tree species composition 树种组成
- 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。
- The biota on an island endures constant turnover in species composition. 面积越小、隔离程度越高，生态释放效应更明显。
- 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]
- It is recommended to reserve Korean Pine and broadleaved tree species for current mixed Larch-Spruce-Fir stands to develop towards deciduous Korean Pine forest. 从枯损和进界看，如果能对红松和阔叶树进行保护，这种林分很可能逐渐演化为阔叶红松林。
- We studied changes in floristic composition, community structure and tree species diversity along an altitudinal gradient on Mt.Mang (eastern Nanling Mountains) and Mt. 根据沿海拔梯度设置的样地的调查资料，对南岭东段的莽山和西段的猫儿山植物群落乔木层物种多样性的垂直分布格局进行了比较研究。
- The species composition and characteristics of mangrove flora in the world were reviewed and discussed. 探讨了世界红树林植物区系的种类组成及其特点。
- Species richness and evenness were unrelated to similarity in species composition. 物种丰富度和均匀度均与物种构成上的相似性没有显著相关关系。
- 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。
- The species composition of mollusca were markedly difference in different sediment. 不同底质的红树林区软体动物组成有显著差异。 污染可能是造成沙头角红树林区软体动物多样性低的重要环境因子。
- Pioneer Tree Species for Forestation in Sandy Land--Hippophae rhamnoides L. 沙地造林的先锋树种-沙棘。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
