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- bamboo stand density 立竹密度
- Combinative measures could gain better effect on the expanding.Selection of proper measures is needed for best benefit from bamboo stand. 生长上可根据实际要求选择扩鞭促控措施,以生态培育的方法实现森林最高的综合效益。
- Like a giant pine trees, tall bamboo stands in the exit. 松树犹如一个巨人,高高的耸立在竹林的出口处。
- Stand density was reduced from 404 to 387 stem/hm 2,and basal area from 44 83 to 43 79 hm 2.All species in high canopy layer except Acer mono decreased in number of stems. 林分密度从404株/hm2降至387株/hm2,而基础面积从44.;83hm2降至43
- To clarify the relation between the pollen percentage of Larix and its stand density, surface samples from tundra, forest tundra and taiga in the Far East Russia were analyzed. 为了搞清楚落叶松花粉百分比和实际森林密度的关系,我们系统地分析了从苔原、森林苔原以及泰加林的表土样品。
- The results showed that Pielou evenness index, gap-fraction, openness, stand basal area, and stand density were influenced by spatial structure of the community at a broad scale. 结果表明,群落均匀度指数、空隙度和开度、林分胸高断面积和林分密度在大尺度上表现出显著的空间结构。
- The relationship between plantation productivity and stand density as well as the distribution law ofthe above ground biomass tbr Pinus sylvestris var. mongolica were preliminarily analyzed. 根据生物量调查资料,对樟子松人工林生物生产力与密度的关系以及樟子松各器官生物量的分配规律做了初步分析。
- Based on these observations, we put forward a new method of"dig & pour"to inhibit the expansion of moso bamboo stands. 基于竹鞭的这些特点 ,提出了使用“挖坑灌水”的方法来抑制毛竹林的扩散。
- Based on foregoing information, density index of stand was led into drowing control chart of stand density into variable-density yield table so that the outputting results between chart and. 引入林分密度指数,将林分密度控制图导成可变密度收获表,保证了图表之间输出结果的一致性,为可变密度收获表的编制提供了一种方法。
- Are you willing to stand surety for your brother? 你愿意当你弟弟的保证人吗?
- Existing technical problems on afforestatien of paper-pulp bamboo stands in Chishui city were investigated and analyzed.Appropriate measures to improve afforestation quality of paper-pulp bamboo stands were presented. 调查分析了赤水市纸浆竹林营造中存在的技术问题,并对怎样提高其造林质量提出了相应的措施。
- This armchair is made of bamboo. 这个扶手椅是用竹子做成的。
- I do not think we have any vase make of bamboo. 我想我们没有竹制的花瓶。
- How much do they stand to lose by this merger? 这次合并,他们要遭受多大损失?
- Stand clear of the swinging boom of the crane. 不要走近转动的超重机吊杆。
- This bamboo basket is my own work. 这只竹篮是我自己编的。
- Never stand aloof from the masses. 千万不可脱离群众。
- Those bamboo beams will not bear. 这几根竹制的横梁承受不住压力。
- Many things are made out of bamboo. 很多东西是由竹子做出的。
- Mathematical Models for Optimal Control Strategy of Stand Density 人工林林分密度最优控制策略的数学模型