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- Using the theory of SPAC and the method of control experiment, the biology and growth behavor of young trees of the main afforestation tree species under different water conditons were studied. 基于水分因子是反映黄土高原不同造林立地类型宜林性,以及影响林木生长的主导环境因子这一观点,运用SPAC理论,通过控制试验,研究主要造林树种幼树在不同水分梯度下的生理及外观反应。
- Main afforesting tree species 主要造林树种
- Characteristics of seedlings water consumption by transpiration of main afforestation tree species in north China 北方主要造林树种苗木蒸腾耗水特性研究
- main afforestation tree species 造林树种
- Machilus pauhoil is a good evergreen broad-leave tree species with wide uses.It has a high ornamental value so that it is also a garden afforestation tree species. 刨花楠是一具有广泛用途的优良常绿阔叶树种,也是一种园林绿化树种,观赏价值很高。
- PRELIMINARY STUDY ON INTENSITY OF GROWTH OF SEVERAL AFFORESTING TREE SPECIES 几种造林树种生长势的初步研究
- Study on the Selection Inquiring System of Afforesting Tree Species in Daqing City 大庆市绿化树种选择查询系统的研究
- introducing afforestation tree species 引种树种
- urban afforestation tree species 城市绿化树种
- afforesting tree species 绿化树种
- Main associated tree species are listed for Loblolly pine plantation in hillock areas of Southern Anhui Province. 为皖南丘岗地区火炬松人工林提出可供选择的主要伴生树种。
- Pb concentration and distribution in main tree species on both sides of highway in suburbs of Nanjing City. 城郊公路两侧主要森林类型铅含量及分布规律。
- 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
- The results contributed to the vertical placement of afforesting trees and the applying of the afforesting practice. 这对造林树种的垂直布局和造林抚育措施的实施有一定的指导意义。
- 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。
- To afforest trees and to build terraced fields are also essential for controlling soil erosion. 坚持植树造林,修筑梯田控制水土流失。
- Relationship between water supply and consumption of main planting tree species of protection forests in loess area of western Shanxi Province. 黄土区防护林主要造林树种水分供需关系研究。