林分 的英文怎麼說

中文拼音 [līnfēn]
林分 英文
[林學] standing forest; stand; crop; forest stand林分測定 inventory of stand; 林分改造 stand conversion
  • 林 : 名詞1 （成片的樹木或竹子） forest; woods; grove 2 （聚集在一起的同類的人或事物） circles; group 3...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  1. Workplace air - determination of phenol - 4 - amino - antipyrine spectrophotometric method

    車間空氣中酚的4 -氨基安替比林分光光度測定方法
  2. Stationary source emission - determination of phenols. 4 - amino - antipyrine spectrophotometric method

    固定污染物排氣中酚類化合物的測定. 4氨基安替比林分光光度法
  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

    結果表明：林分郁閉度和光照條件顯著影響粗莖鱗毛蕨種群的株高、冠幅、葉片數量、葉片寬度、孢子葉數等形態指標。
  4. 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

    摘要本論文基於不同的林分能引起不同的林火特性規律，針對北京八達嶺林場林分狀況，統計分析了各林班不同林分類型、林齡、郁閉度、坡度的面積分佈百分比，根據不同林班林分特點，提出了合理的營林防火措施。
  5. The variable parameter taper equation was built with diameter determination datas of different parts of cryptomeria fortunei plantation sample wood, in combination with the relative tree height curve mode and other assistant equations, volume table of c. fortunei plantation standing was compiled, and provided the scientific basis for the production and application

    摘要利用柳杉人工林樣木各部位直徑測定數據，建立可變參數削度方程，配合威布爾分佈函數、相對樹高曲線模型及其他輔助方程，編制了柳杉人工林林分出材率表，為生產應用提供科學依據。
  6. The number of ingrowth was very small in all stands, the ingrowth mainly occurred for shade - tolerant tree species such as spruce, fir, korean pine and broad - leaved tree species

    林分進界株數嚴重不足，進界的主要樹種是雲冷杉、闊葉樹和紅松，以耐蔭樹種為主。
  7. The order of soil mbc was broad - leaved > masson pine > phyllostachy pubescens > chinese fir stand

    四類林分土壤mbc佔toc比率以毛竹林最低，顯著低於其它三種林分。
  8. The analyzable conclusions of the regression model between crown diameter and age show that the utility of unit step function model in the crown growth process with the changing point is better than the usual regression methods, and the unit step function model can solve discontinuance on the changing point

    對樹冠與林齡的回歸分析結果表明：階躍函數模型在具有變點的桉樹林分樹冠生長過程中的應用效果優於一般回歸擬合模型，可較好地解決分段擬合模型在變點上的不連續問題。
  9. It points out that the rational and stable inner structure cannot lead to serious soil moisture shortage ; its natural climate condition can meet the needs of forest community. it is the irrational management that causes the serious soil moisture shortage in artificial forestry land. if we intervene properly and create some growth condition similar to natural vegetation, the recessed artificial robinniapseudoscacia can restore benignly

    當前人工林地的土壤水分出現嚴重虧缺而形成土壤干化層並導致人工林衰退是人為不合理經營造成人工林群落林分結構不完善的結果，如果人為干預適當，能創造出類似於天然植被的生存條件，人工植被完全有可能得到正常的生存和發展，出現衰退的人工刺槐林完全有可能得良好的恢復。
  10. The results show that the water consumption of transpiration can be reckoned through standard specific conductivity of standard tree and the relative model between breast height diameter of tree and sapwood area

    結果表明，通過標準木的標準比導率和樹木胸徑和邊材面積的相關模型，可以比較準確地推算出林分的蒸騰耗水量。
  11. This paper gives a survey on experimental forestland. 25 tree species were selected, and arranged in order by average diameter at breast height, average height, average individual volume and annual average volume increment in a unit area in this experiment

    摘要簡要介紹了試驗林地的概況，選擇了25個樹種進行試驗，並按各樹種林分平均胸徑、平均樹高、平均單株材積和平均單位面積蓄積的年平均生長量進行排序。
  12. The aesculus chinensis, euptelea pleiospermum, cercidiphyllum japonicum, taxus chinensis, picea brachytyla arid emmenopterys henryi oliv compose and stand structure of were studied, and the comparability matrix among those main woods distribution ere studied, and the protection propagation countermeasures were put forward, which are important for researching and protecting these rare woods in funiu mountain natural reserve

    經調查，基本摸清了國家保護植物七葉樹林、領春木樹林、連香樹林、紅豆杉樹林、雲杉樹林、香果樹林6種珍稀樹種林分的組成與結構，研究了主要林分之間的相似性矩陣，同時提出了保護繁育對策，對開展研究和保護珍稀樹種具有重要意義。
  13. Longling palynoflora comprises of 86 palynomorphs belonging to 61 families, and consist of angiosperms ( 69. 0 % ), gymnosperms ( 4. 6 % ), pteridophytes ( 24. 1 % ) and algae ( 2. 3 % ). longling palynological data indicate a vertical paleovegetational landscape : humid evergreen broad - leaved forest occurred on the slopes near the deposit site, and dominant elements were castanopsis, lithocarpus, cycobalanopsis, mixed with ericaceae, anacardiaceae and sapindaceae etc, and abundant ferns grew in the forest ; the mixed coniferous / broad - leaved forest and coniferous forest distributed on the area of high elevation, dominant elements were tsuga, pinus, picea and abies

    濕性常綠闊葉林分佈在沉積地附近，以殼斗科的石櫟屬、青岡屬和栲屬為主，混生漆樹科、桃金娘科、蓼科、大戟科和金縷梅科的楓香屬等植物，林內蕨類植物豐富；針闊葉混交林分佈在距沉積地較遠海拔較高的山地，主要包括松屬，鐵杉屬，羅漢松屬和一些闊葉植物類群；雲杉林、冷杉林和鐵杉林分佈在更高海拔的地區。
  14. The major strategies for developing non - timber product forest crops during constructing the shelterbelt of the changjiang river are to transform non - timber in the serious water and soil erosion areas, to plan the development scales of non - timber forest in the areas of returning farm to forest, to adjust non - wood products distribution, to establish high productive production bases of non - wood products and to strengthen the macroscopic guide of government for developing non - timeber forest

    對水土流失嚴重的經濟林分佈區進行技術改造、做好退耕還林地上發展經濟林的規劃、適當調整經濟林生產布局、建立高效經濟林生產基地、強化政府的宏觀指導是在長防林建設過程中發展經濟林的主要對策。
  15. 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

    結果表明： （ 1 ）從落葉松幼齡林到中齡林，隨著林冠的郁閉和林下植被蓋度的急劇下降，林地土壤酸度、土壤酶活性、無機磷總量、速效鉀、土壤水分含量、總孔隙度呈明顯下降趨勢，而根際和非根際土壤有機質含量、腐殖質各組分含量、三大類微生物數量、酸性磷酸酶活性和土壤容重隨著凋落物的增加呈明顯上升趨勢；從中齡林到近熟林，由於撫育間伐，林分密度及郁閉度下降，林下植被蓋度逐步得到恢復，根際與非根際土壤有機質含量、富里酸、交換性酸、交換性鋁、中性磷酸酶、無機磷總量、放線菌數量、土壤水分含量、總孔隙度呈明顯的上升趨勢；從近熟林到成熟林，隨著林齡的增大，根際與非根際土壤活性酸、有機質含量、腐殖質各組分含量、有效磷含量、氨基酸總量、速效鉀、土壤酶的活性、土壤水分含量和總孔隙度呈下降趨勢，而根際與非根際土壤全磷含量、土壤酸度（特別是交換性鋁）和容重呈增加趨勢。
  16. As for western mountainous area of beijing, the key factor of survival lies in whether it can stand the drought environment factors, such as less rainfall, higher air temperature, lower humidity and less soil water, etc

    就北京西部山區而言，林分存活與否的關鍵在於其是否能夠經受住春季降雨少、氣溫高、濕度低、土壤殘留水分少等乾旱環境的考驗。
  17. V could be regarded as the only trait in stand selection and both v and bd shoud be considered in individual selection within stand

    而材積和木材基本密度在林分內個體的選擇中具有同樣的重要性。
  18. 3 the influence of water on vegetation growth : ( 1 ) soil water shortage refrains the height, basal diameter and stock of trees

    3土壤水分對林分生長的影響： （ 1 ）土壤水分虧缺嚴重製約著樹高、胸徑和材積的生長。
  19. The different averages depend upon which trees in the stand are selected.

    不同的平均值取決于在林分中抽選的林木。
  20. Indicators on structural diversity within - stand : a review

    林分結構多樣性指標研究綜述
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