English translation for "郁闭"
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- [ yùbì ]
[林学] closing 短语和例子 林冠郁闭 canopy closure
Related Translations:
未郁闭: free growingfree-to-grow 林冠郁闭: canopy closureclose of leaf canopyclosing of leaf canopy 郁闭保持: maintenance of canopy
- Example Sentences:
| 1. | In the majority of cases their objective is a closed stand with improved yield . 在大多数情况下,他们的目标是使林木郁闭,以提高产量。 | | 2. | Quickly accurate determination method of forest land crown density based on arcview gis 支持下的林地郁闭度的快速精确测定方法 | | 3. | The results showed that plant height , crown breadth , leaf number , leaf breadth and sporophyll number of dryopteris crassirhizoma populations were influenced by forest crown density and light condition 结果表明:林分郁闭度和光照条件显著影响粗茎鳞毛蕨种群的株高、冠幅、叶片数量、叶片宽度、孢子叶数等形态指标。 | | 4. | Russula subnigricans hongo grows fast after shower in the later summer and early autumn when it was hot . they emerged in the forest stand in which crown density was 0 . 9 or so . soil ph was 5 . 75 , and fagaceae species dominated 每年在夏末秋初高温阵雨之后为发生盛期。发生地林间郁闭度0 . 9左右,土壤ph值5 . 75 ,其共生树种以壳斗科为主。 | | 5. | In cradle while cut down divides low - grade forest , notice to do authority of nice area branch and low layer vegetation clear the job , can reduce rat already kind concealment place , destroy mouse kind live condition , reduce rat kind density , can reduce miscellaneous bush to wait again at the same time right young forest competition , those who be helpful for forest is hale grow and shift to an earlier date closing cheng lin , the forest land after yu ren is shut goes against rat kind habitat , can rise to control rat to feel the effect that produces greatly 在抚育伐除劣等林木的同时,注重做好地面枝权及低层植被的清理工作,既可减少鼠类的隐蔽场所,破坏鼠类生存条件、降低鼠类密度,同时又能减少杂灌木等对幼林的竞争,有利于林木的健壮生长和提前郁闭成林,郁人闭后的林地不利于鼠类栖息,可以起到控制鼠害大发生的作用。 | | 6. | To certain monitoring area and the remote sensing ratio wave bands defined , by means of the criterion of mean residual sum of squares to carry on filtering of remote sensing factors , finally the important remote sensing wave bands influencing canopy density estimation are confirmed , meanwhile the operable software system is programmed 针对特定监测区域,对设置的遥感比值波段,采用平均残差平方和准则进行筛选,最终确定对郁闭度估测有一定影响的遥感波段,并形成可操作的软件系统。 | | 7. | According to the law of different forest stand can arise different forest fire , based on the existing forest distribution at the badaling forestry center , the area percentage of different forest types , forest age , crown density and slope for each sub - compartment were analyzed , and based on the different characteristics of each sub - compartment , some rational methods of fire prevention were put forward 摘要本论文基于不同的林分能引起不同的林火特性规律,针对北京八达岭林场林分状况,统计分析了各林班不同林分类型、林龄、郁闭度、坡度的面积分布百分比,根据不同林班林分特点,提出了合理的营林防火措施。 | | 8. | The close canopy of fragmental evergreen broadleaved forest community is less than the one of continuous evergreen broadleaved forest , and the plant species of fragmental evergreen broadleaved forest community are also less than those of continuous evergreen broadleaved forest , and there are some conifers in the fragmental evergreen broadleaved forests 群落郁闭度不如连续森林大,植物种类也不如连续森林丰富,而且其中夹杂着一些针叶树。常绿成分种类组成不如连续森林丰富,针叶成分数量上较连续森林的多。 | | 9. | At first , the relations between vegetation structures and their controlling soil erosion are discussed . the results show that magnitude of plant community coverage or canopy closure is n ' t certainly the adequate condition of an anti - erosive effective community because the community function of soil and water conservation is related to height of coverage layer as well as community coverage or canopy closure 首先,讨论了植被结构与其防止土壤侵蚀作用的关系,结果表明,植被盖度或郁闭度的大小并不一定就是防蚀有效植被的充分条件,植被保持水土功能还与覆盖层的高度密切相关,覆盖层高度大并不有利于植被保持水土。 | | 10. | Mongolica young stand , secondary natural forest , and the mixed forest of larix olgensis and fraxinus mandshurica rupr . . countermeasures for controlling soil degradation were also recommended . the study got following results : ( 1 ) from young stand to mid - age of larix olgensis , with the closure of canopy and the decrease of undergrowth vegetation cover , soil acidity , enzyme activity , total inorganic phosphorus , available k , soil moisture and total porosity decreased significantly ; while soil organic matter content , humus component content , the amount of three main types of microbes , acid phosphatase activity , and bulk density in rhizosphere soil and non - rhizosphere soil increased with the increase of the amount of forest floor litter ; from mid - age stand to near mature stand , with the decrease of stand density and crown cover as well as the restoration of undergrowth vegetation after preliminary thinning , soil organic matter content , fulvic acid , exchangeable acidity , exchangeable aluminium , neutral phosphatase activity , total amount of inorganic phosphorus , the amount of actinomycetes , soil moisture , and total porosity in rhizosphere soil and non - rhizosphere soil apparently increased ; from near matu re stand to mature stand , soil activity acidity , organic matter content , humus component content , available phosphorus , total amount of amino acid , available k , soil enzyme activity , soil moisture , and total porosity in rhizosphere soil and non - rhizosphere soil decreased , but total phosphorus , soil acidity ( in particular , exchangeable aluminium ) , and bulk density increased 结果表明: ( 1 )从落叶松幼龄林到中龄林,随着林冠的郁闭和林下植被盖度的急剧下降,林地土壤酸度、土壤酶活性、无机磷总量、速效钾、土壤水分含量、总孔隙度呈明显下降趋势,而根际和非根际土壤有机质含量、腐殖质各组分含量、三大类微生物数量、酸性磷酸酶活性和土壤容重随着凋落物的增加呈明显上升趋势;从中龄林到近熟林,由于抚育间伐,林分密度及郁闭度下降,林下植被盖度逐步得到恢复,根际与非根际土壤有机质含量、富里酸、交换性酸、交换性铝、中性磷酸酶、无机磷总量、放线菌数量、土壤水分含量、总孔隙度呈明显的上升趋势;从近熟林到成熟林,随着林龄的增大,根际与非根际土壤活性酸、有机质含量、腐殖质各组分含量、有效磷含量、氨基酸总量、速效钾、土壤酶的活性、土壤水分含量和总孔隙度呈下降趋势,而根际与非根际土壤全磷含量、土壤酸度(特别是交换性铝)和容重呈增加趋势。 |
- Similar Words:
- "芋濑" English translation, "郁" English translation, "郁邦" English translation, "郁保四" English translation, "郁蔽" English translation, "郁闭保持" English translation, "郁闭的幼龄林" English translation, "郁闭度" English translation, "郁闭林分" English translation, "郁闭群丛" English translation
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