secondary soil 中文意思是什麼

secondary soil 解釋
次生土壤
  • 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...
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  1. The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north

    實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。
  2. 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
  3. 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
  4. To adopt well irrigation and well drainage, develop and utilize ground water resources of irrigated area can not only effectively reduce the ground water level and prevent secondary alkalization of the soil, but also provide timely irrigation to crops through well and canal complementary

    摘要灌區灌溉採用井灌井排，開發利用地下水資源，不但能有效降低地下水位，防止土壤次生鹽堿化，還可以通過井渠互補，使農作物得到適時灌溉。
  5. 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 ） 。
  6. This coupling action between the rheology of soil and the dissipation of excess pore pressure demonstrates that it is not reasonable to factitiously divide the process of consolidation into two independent ones, i. e. primary consolidation and secondary consolidation

    這種耦合作用說明了把固結過程人為地劃分成主固結和次固結兩個相對獨立的過程是欠合理的。
  7. 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。
  8. Secondary salinization of soil is an important factor limiting the greenhouse cropping system

    設施土壤次生鹽漬化是我國設施農業生產中的一個重要限制因子。
  9. The unearthed remnants were plentiful, should be a secondary soil sedimentary layer after some houses were abandoned

    出土遺物豐富，應為房屋廢棄后的二次堆積土層。
  10. 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。
  11. Prevention of soil secondary salinization by turning upland cropland into paddy fields in depressions of the songneng plain

    松嫩平原低平易澇地旱改水種稻治澇防止土壤次生鹽漬化技術的研究
  12. 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。
  13. The primary factor of soil erosion is the erosion of yanshan period granite, the secondary factor is heavy rainfall, and the inducing factor is human activity

    水土流失產生的主導因素是燕山期花崗巖分佈的丘陵區巖體結構遭到破壞；從屬因素是持續強烈的降雨，從而加劇了水土流失；激發因素是人類工程活動對地質環境的破壞。
  14. Cause of formation and prevention and cure measure for secondary soil salinization in sheyang county of sichuan province

    射陽縣土壤次生鹽漬化的成因及防治對策
  15. Some stiffness matrices of special elements such as rubber bearings and components with field are derived from primary - secondary and inverse transform in structural matrix analysis. then, seismic response analytical models and non - isolated continuous rigid frame bridges are set up, while considering the interaction of soil - pile - structure and traveling wave effect simultaneously. finally, the seismic time history response of the two models is calculated by means of the finite element method, and the results show that the isolated bridge posses powerful earthquake resistance

    首先論述了公路大跨徑橋梁的地震反應分析方法，其中包括樁-土-結構相互作用、行波效應等因素對結構物的影響；其次，利用結構矩陣分析中的主從變換和逆步變換，推演了幾個特殊單元的剛度矩陣，包括橡膠隔震層單元和帶剛域構件單元；最後，考慮樁-土-結構相互作用和行波效應的結合，分別建立隔震與非隔震連續剛構橋地震反應分析模型，通過有限元法對兩種結構進行時程分析，結果表明：隔震層上部結構的地震加速度反應、位移反應均明顯減小，這說明隔震的連續剛構橋具有很好的抗震能力。
  16. ( 2 ) compared to secondary natural forest, the amount of three main types of microbes in rhizosphere soil of different age of larix olgensis plantation correspondingly decreased largely, enzyme activity in non - rhizosphere soil reduced, the biochemical activities abated, and soil physical and chemical properties deteriorated

    （ 2 ）與天然次生林相比，落葉松人工林不同發育階段根際土壤三大類微生物數量均相應地有較大幅度的降低，非根際土壤酶活性減弱，土壤生化作用強度降低，土壤理化性質變壞。
  17. In original and jamming slightly vegetation, because dead roots, branch and leaves back to soil, soil organic matter higher, soil available phosphorus higher, too ; chemical and physical characters of soil were stabilization. the reason were original vegetation have more species and structure of community was stable. the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community

    在人為干擾小的原生性森林，植物種類豐富，群落結構穩定，植物死根系和枯枝落葉全部回歸土壤，土壤有機質含量高，養分呈有機態為多，故有效磷較高，土壤理化性質較穩定；次生植被群落土壤結構和肥力的退化是由於群落組成和結構的改變導致枯枝落葉成分和土壤發規白山地還小問沙消民俗一非定俗地征王卿喬忡旺w比收財育環境差異而引起，次生植被土壤的退化狀態隨植被退化程度不同而有差異。
  18. 7 topography and land use are main factors affecting the change of groundwater table, then influencing the redistribution of soil moisture and salinity. soil secondary salinization can be considered as the main factors that influence the stability of new oasis in alluvial plain

    7 、地形和土地利用是影響阜康荒漠綠洲地下水位變化的關鍵因素，而地下水位的連續變化又影響了土壤水鹽在空間上的分佈。
  19. Eng. ) 1. the fertilizer defines, uses the present situation ; 2. three major elements of fertilizer in the soil ; 3. characteristic and using the three major elements fertilizer rationally ; 4. characteristic and using the secondary and microelements fertilizer rationally ; 5. the kind and characteristic of the organic fertilizers and using rationally ; 6. the composting of organic fertilizers ; 7. green manure crop ; 8. influencing factors of the fertilizer effects ; 9. principle and practice of the fertilizer uses ; 10. characteristic and using the compound fertilizers rationally ; 11. foliar application ; 12. fertilizer management regulation

    中） 1 .肥料定義、使用現況； 2 .土壤中的肥料三要素； 3 .三要素肥料的特性與合理施用； 4 .次微量要素肥料的特性與合理施用； 5 .有機質肥料的種類與合理施用； 6 .堆肥製造； 7 .綠肥作物； 8 .影響肥料效應的因子； 9 .肥料施用的原理原則； 10 .復合肥料的特性與施用要領； 11 .葉面施肥要領； 12 .肥料管理法規。
  20. Abstract : the generation and control of odorous gases in treating night soil sludge was exploited in this paper. the results indicated that high concentration odorous gases can be generated during whole process in treating night soil sludge. in order to control the secondary pollution of odorous gases, the authors put forward a new kind of deodorization process - combustion in methane boiler and absorbde in washer

    文摘:對糞渣污泥處理處置過程中惡臭氣體的產生及控制進行了研究，結果表明，在綜合處理全過程的幾個主要階段都會產生高濃度的惡臭氣體，為防止惡臭氣體對環境造成的二次污染，提出採用沼氣鍋爐焚燒和洗滌塔相結合的除臭工藝，洗滌塔除臭只有在系統啟動、調試和沼氣鍋爐發生故障的情況下使用。
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