有機物覆蓋層 的英文怎麼說

中文拼音 [yǒucéng]
有機物覆蓋層 英文
organic coating
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : machineengine
  • : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
  • : 動詞1. [書面語] (蓋住) cover 2. [書面語] (底朝上翻過來; 歪倒) overturn; upset 3. 同 「復」 (Ⅱ1. 2. )
  • : 蓋名詞(姓氏) a surname
  • : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
  • 有機物 : organic compound
  • 有機 : organic organic
  • 覆蓋 : 1 (遮蓋) cover; overlap 2 (植被) plant cover; vegetation3 (保護層 覆蓋物) cover; covering; ...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面理退化指標(效土厚度、厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. 4 ) soil nutrient of leguminosae also higher than non - vegetation soil ; while organic matter and available k increased, there was no significant change in total n ( it increased slightly ) ; available p and soil ph decreased

    4 )豆科植較無植被地,土壤養分朝著良性循環轉變。土壤質、速效鉀含量提高,全氮含量稍增加,速效磷含量降低, ph值所下降;這些變化主要發生在土壤表
  3. By the crop residue input, priming effects of soil irjcrobe will take place, and decomposition and bio - fixation give rise to soil organic matter arid m in the up layer of soil. on the other hand, tillage accelerate ; ; the organic matter mineralization and leads to the quantity of organic matter decreasing in. or 10cm. layer which is about 1 / 2 of soil organic matter under no - tillage

    免耕使土壤上質和氮素穩定增加,這主要來自被激發的微生繁殖時對碳和氮的生固定,而傳統耕作則由於耕翻加速了的礦化, 0 - 10cm土微生碳含量均一,其數值幾乎為免耕系統的一半。
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