erosion of soil 中文意思是什麼

erosion of soil 解釋
土壤侵蝕
  • erosion : n. 1. 腐蝕，侵蝕（作用）。2. 【醫學】糜爛，齒質腐損。
  • of : OF ＝Old French 古法語。
  • 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. So these karst series problems are lowness ability of making soils, distributing odds of surface water and groundwater, leakiness of fountain, alkalescence of circumstance, lowness of bio - diversity, rapidness converse succession of vegetation and fragility of soil character and entironment. and karst region produces many problems, e. g. rock desert, soil erosion and degeneration because of artificial influence and destruction

    巖溶空間介質具有地上地下雙層結構，可溶巖造壤能力低，巖溶水空間分佈不均、地表地下水關系密切、水源易漏失，偏堿性環境、生物資源集聚程度低，植被逆向演替快、順向演替難，巖溶地質與生態環境十分脆弱，受到人為因素的影響和破壞，極易產生石漠化、土壤侵蝕與退化等一系列問題。
  2. In terms of soil erosion control, the six models were in the order of desertation for natural restoration > pasture > chestnut plus honeysuckle > bamboo > cajan > common zenia, whereas in terms of the economic benefit, the order would be pasture > common zenia > bamboo > chestnut plus honeysuckle > cajan > desertation

    對水土保持最好的是自然拋荒，其次是牧草、板栗+金銀花、毛竹和木豆，最差的是任豆；經濟效益最好的是牧草，其次是任豆、毛竹、板栗+金銀花和木豆，最差是自然拋荒。
  3. Climate and evaluation of crystallizable erosion of concrete by sulfates in water and soil

    土中硫酸鹽對混凝土結晶腐蝕的氣候與評價
  4. Standards for classification and gradation of soil erosion

    土壤侵蝕分類分級標準
  5. The results are summarized below : 1 ) study on soil science indicates that soil granular structure is the focus adjuster for soil fertility and it affects the space, water - grasp, aeration and anti - erosion of soil. and the percentage of aggregate is one of the key index that decides the speed and extent of soil erosion, hardening and degeneration because the soil degeneration will first lead to the disappearance of crumb - structure. so it is very important that the physical course and character of soil in different land use pattern are realized

    現將主要結果摘要如下： l 、士壤學研究表明，團粒結構是土壤肥力的中心調節器，影響著土壤的空隙性、持水性、通透性和抗蝕性；任何土壤的退化首先將表現出團粒結構的消失；團聚體百分比是決定土壤侵蝕、板結等物理過程速度和幅度的關鍵指標之一，了解不同土地利用和土壤管理方式的物理過程和性質相當重要。
  6. As a result it enhanced the water - retaining and fertility - retaining capacity, strengthened the anti - scour and anti - erosion ability. 3. sabaigrass can meliorated the little entironment of purple soil bare slope field the results show that sabaigrass treatment and grass tree solid plating treatment can reduce n ( nitrogen ), p ( phosphorus ) and k ( potassium ) erosion, increase soil nutrition element content, it also increase soil water content and soil pondage, decrease soil water evaporation, strengthen the anti - drought ability

    龍須草能改善紫色土荒坡地的小生境龍須草純種植被和林草立體種植植被能不同程度地增加土壤的有機質和速效n 、 p 、 k的含量；增加土壤含水量和貯水量，減緩和減少土壤的水分蒸發，增強土壤的抗旱能力；降低土壤盛夏的地表最高溫度，減少地表溫度變化幅度。
  7. Soil quality - measurement of the stability of soil aggregates for assessment of liability to surface sealing and hydric erosion

    土質.表面密封和水腐蝕傾向性評定用土壤集料穩定性的測量
  8. The third major indirect cost of soil erosion is the loss of navigability.

    土壤侵蝕第三個重要的間接代價是喪失航行能力。
  9. Therefore, it is the urgent need of land exploiture and environment repair that how to investigate the current situation of soil losses accurately, quickly and dynamically, how to predict & inspect soil losses, and provide scientific base for the repair of soil erosion and implement of soil and water conservation planning. otherwise, the survey method of soil losses is lagger in yunnan

    如何準確、快速、動態地查清水土流失現狀，進行水土流失預報和動態監測，為水土流失治理和水保規劃實施提供科學依據，是土地開發與環境整治的迫切需要，而雲南省在水土流失調查方法方面恰恰處于相對落後狀態。
  10. The study of soil degradation has become the focus of the 21st century inter - national pedology, agronomy, hydrology, environmental science and soil erosion science, however, a lot of theoretical problems and course mechanism about soil degradation are uncertain hitherto

    土壤退化研究已成為21世紀國際土壤學、農學、水文學、環境科學及侵蝕學科關注的熱點，但是直到今天為止有關土壤退化的許多理論問題及過程機理尚不清楚。
  11. The best way to undo the problem of soil erosion is to reforest the cultivated land

    解決水土流失問題的最好辦法是退耕還林
  12. The results indicated that the ree tracer technology has high precision to quantify the spatial - temporal process of soil erosion ; in earlier rainfall course, the development degree of sheet and nil erosion was general equation ; otherwise in the following course, the rill erosion was dominant in the total erosion, its average erosion acceleration and the average erosion rate was 15 and 9 times of sheet erosion, respectively ; in the end of experiment, the rill erosion took up 90 % of total erosion amount ; the section of slope bottom occupying about 1 / 3 slope area was active erosion segment in this experiment

    結果表明： ree示蹤技術對定量研究土壤侵蝕具有較高的精度；降雨前期，片蝕與細溝侵蝕發育程度基本相當；後期細溝侵蝕占據坡面侵蝕的主導地位，其侵蝕平均加速度和平均侵蝕率分別是片蝕的15倍、 9倍；試驗結束，細溝侵蝕占據坡面總侵蝕的90 % ；本試驗條件下，坡面下1 / 3區域為侵蝕活躍帶。
  13. The major causes for dyke breaches are the strong permeability of soil at the dyke breaches, resulting in infiltration or piping firstly, and nonuniform settlement on water side and land side of the dyke due to a long - term soakage of the dyke, further leading to cracking and erosion, and finally breaching of the dyke

    潰口發生的主要原因是潰口處土壤組成透水性強，先發生散浸或管涌等險情，加上浸滄時間長，迎水面和背水面堤身沉陷不均勻，導致裂縫出現和沖刷的加劇也都促成潰口發生。
  14. A stochastic model for processes of soil wind erosion

    土壤風蝕過程的一類隨機模型
  15. Through the analyses of characteristics of gully thalweg and soil erosion in upland and gully land, sediment sources in small watershed, sediment yield relationship between upland and gully and ecological functions of vegetation corridor, it is considered that vegetation corridor combined with land preparation measures may block runoff and sediment from upland and reduce the amount of soil erosion in a watershed by 54. 5 % ~ 77. 0 %

    摘要在分析黃土高原地區的溝沿線、溝沿線上下溝間地和溝谷地土壤侵蝕特徵、小流域泥沙來源、坡溝侵蝕產沙關系的基礎上，結合廊道的生態功能和以往的研究結果，認為在溝沿線的上部建立草灌與整地工程措施相結合的植物廊道，來攔蓄阻截溝間地的來水來沙，可使流域的土壤侵蝕量減少54 . 5 % ~ 77 . 0 % 。
  16. At the same time the study analyse the structural system of the index and it ' s weight with the ahp, and choose soil quality, soil thickness, the content of organic matter, terrain, elevation and the ration of irrigated guarantee as gradation index and choose soil quality, soil thickness, the content of organic matter, terrain, elevation, the ration of irrigated guarantee, the condition of traffic, the distance from the central city, the scatter degree of field, the neat degree of field, loss of water and erosion of soil and land contamination as classification index. at the same time the study emphasize the effect of the condition of ecological condition and environmental contamination

    採用層次分析法對該區域農用地分等定級的指標體系及其權重進行了研究，選擇表層質地、土層厚度、有機質含量、地形、海拔、灌溉保證率等6項指標參與分等評價，選取表層質地、土層厚度、有機質含量、地形、海拔、灌溉保證率、對外交通狀況、距市中心距離、田間道路狀況、田塊分散度、地面平整度、水土流失、土地污染等13個因子分指標區進行定級評價，強調了生態條件及其環境污染狀況在農用地分等定級中的作用。
  17. However the extensive use of scientific technology has brought serious environmental issues to the mankind in the same time, such as the waste of resources, the exhaustion of energy, the loss of water and erosion of soil, the greenhouse effect, the environmental pollution of the earth and so on, which made people in the world have to face the living crisis that they had never met

    與此同時，科學技術的廣泛利用也為人類社會帶來了嚴重的環境問題，如資源浪費、能源枯竭、水土流失、溫室效應、地球環境污染等，使人類面臨前所未有的生存危機。如何協調人與環境、環境保護和經濟發展的關系成為全球關注的熱點。
  18. The analysis on the mechanism of anti - wind erosion of soil crust

    土壤風蝕與植被防護研究
  19. Influence of pam to capability of anti - wind erosion of soil

    對土壤抗風蝕能力的影響
  20. Along with the thorough study on formation process of water erosion of soil and its simulation, erosion forecasting model has been developed from empirical model and physical process model to disaggregation model

    摘要隨著對土壤水蝕形成過程及其模擬研究的深入，侵蝕預報模型已由經驗模型、物理過程模型向分散式模型發展。
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