跡地土壤 的英文怎麼說

中文拼音 [jīdetǔrǎng]
跡地土壤 英文
slash soil
  • 跡 : 名詞1 （留下的印子; 痕跡） mark; trace 2 （前人遺留的建築或器物等） remains; ruins; vestige 3 （...
  • 壤 : 名詞1. （土壤） soil 2. （地） earth 3. （地區） area 4. （姓氏） a surname
  1. During the 1950s, 1960s, 1970s and up to the early 80s, the key planting objectives were to restore vegetation to the badlands and to cover the eroded scars with trees as soon as possible - to prevent further erosion and to assist in the development of better soils

    由1950年代至1980年代初，植林的重點目標是盡快使劣地重長植被，以樹木覆蓋侵蝕痕跡，從而防止水土繼續流失，幫助建立更佳的土壤。
  2. Each climatic environment places its own stamp upon the soils developed there.

    每一種氣候環境，都對該地發育的土壤留下了自己的痕跡。
  3. At the same time, the quality of different - state water was studied. the results show : the soil bulk density of the fir wildwood heightens with the increase of soil depth, specifically 0. 74 > 0. 94 andl. 34g / cm3, the saturated, canaliculus and field moisture contents decrease gradually in layer a, b and c, accordingly the soil total foveola decreases gradually, and the moisture - hold capacity of the soil lessens gradually with the increase of the soil depth ; there is small difference of the soil bulk density between layer a and b in the outer space, which are respectively 0. 92 and 0. 99g / cm3, and the other laws are the same as the in ner in the main ; reverse success often occurs in the low position of the thoroughly - fell trace and plateau marsh is formed

    結果表明：冷杉原始森林土壤容重隨土層深度的增加而增大，分別為0 . 74 、 0 . 94 、 1 . 34g cm ~ 3 ，飽和持水量、毛管持水量、田間持水量a層、 b層、 c層逐漸減小，十壤總孔隙度也逐漸減小，土壤的持水能力隨深度的增加逐漸減弱；林外空地a層、 b層十壤容重相差不人，分別為0 . 92和0 . 99g cm ~ 3 ，其它規律與林內人體相同：皆伐跡地的低洼地段容易發生逆行演替，形成高原沼澤地。
  4. Based on the principle of significant effect of soil fertility factors on forest growth, soil physical factors ( natural water content, bulk density, total porosity, capillary porosity, aggregate degree, coarse silt and physical clay ), chemical factors ( om. total n, alkali - hytrolyzable n, total p, humus and ha / fa ) and biological factors ( urease, acidphosphotase, invertase and microbes ) were selected as evaluation index system of soil fertility. applying principal component analysis, soil ifi of subalpine coniferous forest was calculated

    從土壤物理、化學、生物學三方面出發，建立了川西亞高山針葉林不同演替階段土壤肥力評價指標體系，應用主成分分析，計算出不同演替階段土壤肥力綜合指標值（ ifi ） ，各演替階段大小順序為： 10年生雲杉林地跡地原始林地次生樺木林地30年生雲杉林地20年生雲杉林地50年生雲杉林地60年生雲杉林地40年生雲杉林地。
  5. Generally, soil total p increases after burning, but the soil total p after moderate and high intensity fires returned to level before burning slower than after low intensity fires, which is consistent with soil available n. the changes of soil k, mg are great after burning

    但6年以後，土壤氮的含量有增加的趨勢。除少數跡地外，火燒後土壤全磷含量在若干年內呈增加的趨勢，但中、高強度火燒跡地土壤全磷含量的恢復較低強度火燒跡地慢。
  6. The resulting barren area leads to soil erosion and the development of undesirable trails

    貧瘠的土地往往導致土壤的侵蝕出現不期望的痕跡。
  7. In 0 - 200cm light dried layer was formed and can be recovered partly after rainfall, but beneath 200cm the serious perpetual dried layer has lower water content and larger thickness and is very difficult to be recovered in short period because of the special hydrological characteristics in the loess plateau where infiltration depth is about 200cm and could not percolate into deeper layer. ( 4 ) the landscape ecology in fuxian county shows that the two kinds of forest community have not declined

    （ 4 ）富縣天然山楊林和天然遼東櫟林的景觀生態特徵表明，兩類森林群落沒有出現衰退的跡象，這說明森林群落合理的內部結構不會造成林地土壤水分的嚴重虧缺，其自然氣候條件可以滿足森林群落生存、發展的需要。
  8. Through this study and according to the law by which the soil moisture content changes with the time, the soil moisture is determined as consumptive, accumulative, fade - away and stabilization periods

    對于土壤滲透，一般情況下初滲和穩滲速度是林內林外空地沼澤化跡地， a層b層。
  9. Soil n decreased within 6 years following burning and increase after 6 years after fires

    火燒后6年內，跡地土壤氮的含量較未燒前少。
  10. The changes of soil physical properties at burnt site were very great following rainfall

    火燒跡地在降第一場雨後土壤的物理性質有很大變化。
  11. Soil ca leaches easily after fire. then soil ca can returned to level before burning gradually

    火燒跡地土壤速效磷含量的變化與全磷有大致的趨勢。
  12. Effects of slash disposal methods on the physical and chemical properties of soil on the harvested sites in northeast china

    森林採伐跡地清理方式對跡地土壤理化性質的影響
  13. The soil water - retaining capacity at low and moderate intensity burnt site returned to the level before burning faster than at high intensity burnt site

    低、中強度火燒跡地土壤持水能力的恢復較高強度火燒跡地快。
  14. The yearly burning raised soil pll, available n and k and reduced soil organic mater, total n, total p, available p and ca

    連年火燒跡地土壤ph值升高，有機質、全氮、全磷、速效磷、鈣的含量均有所下降，而有效氮、有效鉀的含量有所增加。
  15. In this research project, the agrobacterium tumefaciens mediated transformation of badh gene of tetraploid black locust has been studied, for the purpose of improving resistance to soline - alkali and drought of tetraploid black locust ; of playing more important role in developing of waste lands, ameliorating of soline - alkali soil, and greening and beautifying of surface - mined lands, mine waste dumps, slopes of roads and railroads where restoration of vegetative cover has proven difficult ; of fully making benefits of its ability to fix atmospheric nitrogen in the soil

    為了進一步提高四倍體刺槐的耐鹽性和抗旱性，進一步擴大其適宜種植的生態范圍，充分發揮其固氮、改良土壤的特性，在我國的城鎮綠化、荒山造林、鹽堿地改良以及采礦跡地、公路、鐵路邊坡等植物生長困難土地的植被恢復中發揮其優勢，本實驗對四倍體刺槐進行了農桿菌介導的甜菜堿醛脫氫酶基因轉化的研究。
  16. Fire raised soil ph, but the soil ph after low and moderate intensity fires returned to the lever before burning faster than after high intensity fires. the changes of soil organic matter and ph were similar after fires

    火燒使十壤ph值升高，但隨著時間的推移，低、中強度火燒跡地土壤的ph值恢復得較快，高強度火燒跡地土壤的ph值恢復得較慢。
  17. Soil ph, available n and mg increase on burnt sites following the first rainfall, however, soil organic matter, total n, total p, k and ca decrease

    火燒跡地在降第一場雨後土壤ph值升高，有機質減少，全氮、全磷、鉀、鈣等含量減少，而有效氮、鎂含量增加。
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