semiarid soil 中文意思是什麼

semiarid soil 解釋
半乾旱土壤
  • semiarid : adj. 半乾旱的。
  • 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. Soil caco3 eluviation and deposition process is the most important development and evolution process of soil, from parent material to mature soil in the loess plateau, arid and semiarid area

    土壤碳酸鈣（ caco _ 3 ）的淋溶淀積過程是黃土高原以及乾旱和半乾旱地區土壤形成發育的主要過程之一，也是地球化學過程的主要內容。
  2. Responses of soil water and fertility to the alfalfa crop rotation in semiarid loess area of china

    半乾旱區不同作物與苜蓿輪作對土壤水分恢復與肥力消耗的影響
  3. Apart from geochemists from western countries, which paid a particular attention on amorphous iron - manganese oxides extracted by enzyme or 0. 1 ~ 0. 25m nh2oh ? hc1, our results show that the extraction of metals adsorbed by clay and bound to the carbonate in soil is most useful to identify the concealed mineralizations in the semiarid and loess covered terrains, northern china

    但與國外重點關注非晶質鐵錳氧化物如酶、鹽酸羥氨提取結果不同，在我國北方半乾旱黃土覆蓋景觀區，粘土吸附和碳酸鹽結合態金屬元素的提取為最有效的提取步驟。而游離態、有機結合態的提取效果則受景觀控制變化較大。
  4. In the weihe valley, the environmental effect of the summer monsoon on the south is much stronger than that on the north in the holocene megathermal, which is result forming deferent structure of paleosoil ( so ) at the mjy - a site and the wsc site : at the mjy - a she, the paleosoil ( so ) belongs to typical semiarid grasslands soil - heilu soil with apb - ah - bk - c soil sectional structure ; at the mjy - a site, the paleosoil ( so ) belongs to typical semi7humid forest soil - brown soil with ah - b1 - ck - c soil sectional structure

    具體表現在合水與戶縣大暖期強成壤階段形成的古土壤（ s 。 ）剖面構型上：北部古土壤為典型的半乾旱草原土壤一黑爐土，具有apb叭hek （土壤剖面構型：南部戶縣剖面古土壤（ s 。 ）為典型的半濕潤森林土壤一褐土，其so具有ah bt ck c土壤會面構型。
  5. In this study, three typical high - resolution holocene soil profiles in the weihe valley were studied using particle - size analysis, measurement of magnetic susceptibility, total fe, toc, caco3, rare earth elements and others. the results provide new insights into pedogenic environmental evolution and human impact of cultivation on soil development in this climatically sensitive semiarid zone

    通過對各指標實驗結果及其成壤環境意義的分析，探討了全新世渭河流域成壤環境的演變以及土壤發育的特點；並藉助歷史文獻和環境考古的成果，分析了人類活動與成壤環境之間的相互作用及其人地關系演變的過程。
  6. To overcome the restriction of water and heat on agricultural production in northwestern arid and semiarid region, the farming practice of clear plastic film mulch was spread due to its capacity of retaining water and temperature in the winter wheat field in many areas, howeve r soil properties had also were affected significantly in the meantime

    在西北乾旱半乾旱地區，為了克服水熱資源對農業生產的限制，地膜覆蓋的農作措施以其顯著的增溫保墑作用在冬小麥農田得到了大面積的推廣和應用；與此同時，該農作措施下的土壤性質也發生了深刻的變化。
  7. Therefore, metals moving upwards from mineralizations may be absorbed and form weak geochemical anomalies ( weak signals ) in surface loess. the metals can be effectively extracted by neutral salt. loess - covered area in china is primarily distributed at the semiarid region, the secondary carbonates, which were formed after precipitation of ions through evaporation and capillary processes, are widespread in the surface soil

    黃土覆蓋區主要分佈在乾旱半乾旱地區，次生碳酸鹽在地表土壤中普遍存在，蒸發所產生的毛細作用、地氣流的上升作用等所帶入的各種形式金屬元素，在地表土壤（黃土）與碳酸鹽發生共沉澱或被吸持。
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