查询词典 sprout forest
- 与 sprout forest 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The CVNX features a substantially smaller redesigned command "island" than current aircraft carriers, as well multifunction arrays that replace the forest of antennas that current ships sprout, making the carrier inherently harder to detect and attack.
据估算,CVN-21航母的总体研发设计费用大约为140亿美元,其中的大约40%都用于设计第一艘CVN-21级航母,因此第一艘CVN-21航母的设计和制造费用总共需要花掉大约90亿美元。
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The origin of some natural Betula L. stand is seedling. Some are sprout forest.
桦树天然林的起源有实生的,也有萌生的。
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The results indicated that the soils in the forest zone of Taichung harbor is sand with extremely low organic matter content. This is unfavorable to grow and sprout in forest.
由研究结果得知,台中港林区属於砂土,有机质含量极低,不利於林木生长与萌芽。
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Stand in different growth period by weibull distribution function.(6) Height and diameter of a tree are two factors to show growth in upright and cross. When they are young, the ratio of height and diameter is more than 1. It shows the fact that natural stand, especially natural sprout forest grows fast in early period. Later, with the age increasing, the ratio of height and diameter gradually reduces. In nearly mature stand and mature stand, increment of diameter is over increment of height.
5树高和直径是表明林木纵向生长和横向生长的两个特征因子,在幼龄阶段,高径比大于1,说明天然林,尤其是天然萌生林早期高生长快的特点,此后随着年龄的增加,高径比逐渐减小,在近成熟或成熟阶段,直径生长量超过树高生长量。
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This attributes to the abundance remnant nutrients remaining in the stump. However, in later growing stage the difference between the two regeneration patterns gradually shrinks, in tree height the seeding individuals even exceed the sprouting ones. This reflects that the sprout forest exist premature senility phenomenon.
但是到了生长后期,两种更新方式形成的个体间生长量差异逐渐的缩小,在树高生长上实生个体的生长甚至超过了萌生个体的生长,这反应出了萌枝更新形成的萌芽林存在林木早衰的现象。
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Remark:(1)The cost ofseeding、soil preparation、clearance ofweeds、fertilization、implantation、repair planting、tending and fertilizers etc is included in afforestation cost, the plantations are tended l time in the afforest first year and thesame thing had been done in the next year;(2)The land rent which is 225 yuanhm-2a-1 and the cost of pest control and fire proof which is 75yuanhm-2a-1 are included in the fixed cost;(3)The plantation is managed aS the sprout forest after catastrophe, the plantations are tended 1 time in the year of disaster and the same thing had been done in the next year.
桉树速生用材林营林成本因地点和经营者的不同而有所差异,为方便进行经济效益评价,经咨询江西赣州金太阳科技林业有限公司、湖南永州林业局、广东连州市林业局和广西来宾市林业局的有关人员,结合华南地区桉树人工林造林成本,本研究的经营成本统一确定如下(表2)。注:(1)造林费用包括造林当年的种苗、清山,除杂、整地、施肥、栽种、补植、当年的抚育以及肥料等人、财、物的投入;在一个轮伐期中,造林当年抚育一次,次年抚育1次;(2)年固定费用包括:土地租金按225元hm-2a-1计算,护林防火、病虫害防治等费用按75元hm-2a-1计算;(3)林分受灾后作萌芽林经营,受灾当年抚育一次、次年抚育一次。
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Cunninghamia Lanceolata showed that,after Cunninghamia Lanceolata sprout forest had been changed into Schima superba and Cunninghamia Lanceolata mixing forest,tree growth had largely been increased,and the water holding and conserving ability had been upgrated,as well as,the microclimate within forest had been improved,the forest land productivity had been protected.
木荷与杉木萌芽林混交试验,结果表明:杉木萌芽林改造为木荷杉木混交林后,林木生长量大幅度提高,林木和林地持水、保水能力增强,林内小气候得到改善,林分水源涵养能力进一步提高,林地生产力得到维护,为今后杉木多代萌芽林和杉木低产林改造提供科学依据。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。