secondary forest 中文意思是什麼

secondary forest 解釋
【林業】再生林。

  • secondary : adj 1 第二（位）的，第二次的；中級的 （opp primary）。2 副（的）；從屬的；附屬的；輔助的；補充的...
  • forest : n. 福雷斯特〈姓氏，男子名〉。n. 1. 森林，山林。2. （英國）皇家狩獵場。vt. 在…造林；使長滿樹林，使成為森林。
  1. Natural secondary forest on hk island

    港島的自然次生林
  2. A trial report on planting pinus koraiensis under the natural secondary forest

    天然次生林冠下營造紅松試驗初報
  3. Management technology of the secondary forest in northeastern and inner mongolia region

    東北內蒙古天然次生林經營技術
  4. We bring forward the pattern of mountainous secondary forest avian community

    5 、提出了山地次生林鳥類群落結構形成的模式
  5. A comparison on temperature characteristics between tropical secondary forest and seasonal rain forest gaps

    季雨林林窗溫度特徵對比分析
  6. Microbial biomass in soil during secondary forest succession in ziwuling, northwest china

    子午嶺次生林恢復演替中土壤微生物量的變化動態
  7. The characteristics of soil in natural secondary forest conservation area of yingzui mountain

    鷹咀界天然次生林自然保護區林地土壤特性研究
  8. Directional silviculture experiment and benefits of natural secondary broad - leaf forest

    次生闊葉林定向培育試驗及效益研究
  9. In different phases of development, vegetation systems in this region have changed from pioneer herbage species initially recovering in abandoned cropping lands ( bothriochloa ischemum, artenmisia giradii and stipa bungeana, artenmisia sacrorum, spodiopogen sibiricus and sophora flavecens, themeda japonica, and arundinella anomala ) to secondary shrubs ( hippophae rhamnoides, sophora viciifdia, and ostryopsis davidiana ), early forest community ( populus davidiana, betula platyphylla and platycladus orientalis with arbors or shrub assembling ), and finally liaotungesis community as the mature forest. in this study, soil profiles ( 0 - 5, 5 - 15, 15 - 25, 25 - 35, 35 - 50 cm soil layers ) were selected from typical vegetation systems representing for vegetation successions in the region

    該區北部目前還保存有空間上完整的植被正向演替系列，即棄耕地先鋒群落草本群落（白羊草bothriochloaischemum 、茭蒿artenmisiagiradii +長茅草stipabungeana 、鐵桿蒿artenmisiasacrorum 、大油芒spodiopogensibiricus +苦參sophoraflavecens 、黃菅草themedajaponica或野古草arundinellaanomala ）灌叢群落（沙棘hippophaerhamnoides 、狼牙刺sophoraviciifdia 、虎榛子ostryopsisdavidiana ）早期森林群落（喬灌群聚、山楊populusdavidiana 、白樺betulaplatyphylla 、側柏platycladusorientalis 、 ）遼東櫟群落（ quercusliaotungensis ） 。
  10. Utilization of tree species by forest birds during winter and summer in secondary deciduous woods

    次生闊葉林中某些鳥類對樹種利用的研究
  11. 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。
  12. The life - form spectrum, plant kinds, vertical structure and horizontal structure of oka nutural secondary forest in baotianman national reserve were preliminary analyzed, which has produced the more conjecture : the vertical distribution in the area is obvious ; the kinds of phanphytes plants in the community is the most ; the q. variabilis and q. variabilis are on predominance ground

    摘要對寶天曼自然保護區櫟類天然次生林群落的生活型譜、種類組成、垂直結構和水平結構進行了初步分析，並由此進一步推測：該地區植物群落垂直分佈較明顯；群落中高位芽植物最多，佔61 . 6 % ；栓皮櫟和銳齒櫟在群落中正處于優勢地位。
  13. Studies on population ecology showed that d. versipellis is able to grow on the hillsides of subtropical broadleaf or acicularleaf secondary forest where soil is fertile and the content of n, p, k is high and the ph is 5. 49 - 6. 59

    種群生態研究表明八角蓮適宜生長的土壤為中性偏酸（ ph5 . 49 6 . 59 ） 、有機質含量為7 . 34 33 . 33和n 、 p 、 k養分含量高的黃棕壤；其生長環境的植被為亞熱帶針葉混交林，伴生植物多為當地優勢種。
  14. The breeding of bonasa bonasia in secondary - forest

    山地次生林花尾榛雞的繁殖
  15. The conditions of its climate, moisture and soil are high quality. the mid - subtropical evergreen broad - leaved forest suffered the clear cutting fatally before 1950 ' s or in 1950 ' s. now the natural secondary evergreen broad - leaved forest grows well after half - century restoration

    在上世紀五十年代（包括五十年代）以前，這片中亞熱帶常綠闊葉林遭受毀滅性的皆伐作業，現在生長著的是經過半個世紀恢復的天然次生中亞熱帶常綠闊葉林，長勢良好。
  16. Garrigue scrub woodland a secondary formation derived from the original mixed forest, characteristic of limestone areas of the mediterranean region, with low rainfall and thin, dry soils

    咖里哥宇群落：是（地中海區常綠矮灌木）多矮小植物，起源於原始混合森林的次級群落，該群落具有的低降雨量及稀薄幹燥的土壤，是地中海石灰巖地區的特徵。
  17. The secondary forest breeding use birds nest - site resources vertically, they can be divided into nesting in tree coronal layer guild, nesting on tree trunk guild, nestig in the under forest layer guild

    次生林繁殖鳥類對巢址資源呈現空間上的垂直利用現象，可分為樹冠層營巢、樹幹上營巢和林下層營巢繁殖集團。
  18. In hong kong, the original forest cover was cleared centuries ago, and now only secondary forest is left following the 1945 reforestation programme

    在香港，原始森林早於數百年前已被夷平，繼1945年開展的植林計劃，現時本港只剩下次生林。
  19. The higher landscape heterogeneity, the closer to nature secondary forest. along the gradient, landscape congregation index exhibits descendent tendency, showing a significant relationship between the extent of patch mosaic and the extent of disturbance, according to changes of landscape mean shape index ( lmsi ) and landscape mean fractal dimension index, integrated disturbance ( nature disturbance, human activities, vegetational inner succession or population dynamics ) tend to enhance

    景觀聚集度指數是隨著梯度區呈下降的變化趨勢，表明斑塊之間的鑲嵌聯系的程度與受到的干擾程度有極為重要的關系。從景觀平均形狀指數和景觀平均分維數的變化，可看出綜合干擾（自然干擾、人為活動、植被的內源演替或種群的動態變化）是呈增強的發展趨勢。
  20. 3. there exists community organizer during the process of secondary foresrt birds community forming pied magpie is one of the community organizers in secondary forest, it mainly influences the raptors community structure, and influences large bird guilds that nesting on ground and cavity - nesting birds indirectly, thereby it influences the whole birds community structure

    3 、次生林鳥類群落結構形成中有群落組織者的存在喜鵲是次生林中的群落組織者之一，主要影響猛禽群落的形成猛禽群落組成的變化，又間接影響次生林中的營地面巢的大型鳥類和營洞巢的大型鳥類群落構成，從而對整個群落的組成產生影響。
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