肥力侵蝕 的英文怎麼說

中文拼音 [qīnshí]
肥力侵蝕 英文
fertility erosion
  • : Ⅰ名詞1 (肥料) fertilizer; manure 2 (姓氏) a surname Ⅱ動詞1 (使肥沃) fertilize 2 (由不正當...
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : Ⅰ動詞(侵入) invade; intrude into; infringe upon Ⅱ形容詞(接近) approaching Ⅲ名詞(姓氏) a surname
  • : Ⅰ動詞1. (損失; 虧耗) lose 2. (腐蝕) erode; corrode Ⅱ名詞(天體現象) eclipse
  1. 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,團粒結構是土壤的中心調節器,影響著土壤的空隙性、持水性、通透性和抗性;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、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。
  2. The research results mainly show : ( 1 ) the ecological degradation characteristics of wuxi county include : some soil is thin and barren and its water and fertility conservation abilities are poor, gradual degradation of soil results in decrease of vegetation diversity and the vegetation community structure gradually inclines tc simplicity from complexity. the types of soil and water loss in wuxi county mainly involve surface erosion and gully erosion. according to investigation, surface erosion area occupies 80 % or so or erosion area, in which the slope farmlands surface erosion area accounts for about 70 % of farmland erosion area

    研究結果主要包括: ( 1 )巫溪縣生態退化特徵表現:作為生物生長基質的部分土壤薄而貧瘠,保水保差,部分地區基巖裸露,土壤的不斷退化導致植物種多樣性減少,植物種群結構逐步由復雜趨向簡單化;縣內水土流失的類型主要包括面和溝兩大類,據調查,面面積占總面積的80左右,其中坡耕地面佔耕地面積的70左右。
  3. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀,本文借鑒眾多學者的研究方法和觀點,在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地,在玉米區進行了不同數量的施,通過野外試驗,採集一年自然降雨產流及泥沙樣品,同時採集降雨前後的耕層土壤樣品,研究了黑土區地表徑流對氮磷養分特徵及退化的影響,結果表明:土壤和氮磷的流失受諸多因素的影響,降雨量、降雨強度是重要因子,而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子,特別是暴雨,暴雨徑流中氮磷濃度較平時高得多;隨作物生長,覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異,氮磷流失都表現為顯著的差異。
  4. Absolute amounts of soil erosion is not large for the falling gradient in black soil region, but the nutrient is high in erosion soil, the nutrient of erosion soil and runoff is high, which leads to soil fertility degeneration, while n and p nutrient pour into water with surface runoff, it leads to water nutrient enrichment and pollution, and becomes one of confined factors of water nutrient enrichment

    吉林農業大學碩士學位論文黑土地表徑流氮磷養分特徵及其與退化的關系由於黑土耕作區坡度平緩,土壤的絕對量並不很大,但由於土壤中攜帶的養分高,養分流失的較多,流失的養分將引起的退化,而且氮磷等養分隨地表徑流流出匯入各種水體,引起水體富營養化和污染,成為水體富營養化的限制因子。
  5. At present there are more reports on soil erosion by experts from home and abroad, but most of these reports were about simulation and research based on a single factor. there are little reports on soil erosion on entire watershed, adopted comprehensive research measures according to the principle of ecological system, especially on soil erosion from the intensive farming system on slope lands, watersheds exploited for agroforestry industry, as well as appraisal reports on soil fertility index

    目前國內外學者有關水土流失的報道很多,但大多數以單一因素和模擬試驗研究較多,而從生態系統角度出發,採用綜合方法,在小流域尺度上研究水土流失規律較少;對小流域坡耕地綜合農業措施水土保持效應和小流域綜合開發利用過程中水土流失規律研究以及土壤評價的研究則更少。
  6. Soil water condition is calculated by watsat model, its result ( suff ) is input into ales. the soil water condition is sufficient for maize in most of handan, suff value is between 0. 8 and 1. 0

    根據邯鄲地區1 25萬soter土壤土地數據庫和ales土地適宜性評價模型原理,建立了基於水分滿足程度、土壤風險、土壤指標的邯鄲地區夏玉米適宜性決策樹模型。
  7. Loss of topsoil by erosion and a reduction in soil fertility by not replacing nutrients, turn a renewable resource into a non - renewable one

    造成的表土流失以及不補充養分造成的土壤下降使一種可再生資源變成不可再生的資源。
  8. Soil erosion and nutrient losses in jiangjiatang watershed in lanxi city in zhejiang province during exploitation was studied from 1993 - 2000 using adoptive research methods such as runoff plot, catchment area, and rare earth element tracer ( eu ), and the soil fertility index appraisal. the major conclusions are as follow : 1. the principle of water and soil losses together with nutrients and the forms in which they were lost were studied under different fanning systems in runoff plot

    本研究選擇浙江省中部金衢盆地邊緣蘭溪市水土保持監督站蔣家塘小流域為研究試驗點,以協作單位蘭溪市水土保持監督站小流域開發試驗區為基礎,採用坡面徑流小區法、單源匯水試驗區出口實測法、穩定性核素- eu土芯示蹤法研究了2000年坡耕地不同農作措施水土流失規律及養分流失規律和小流域綜合開發過程中水土流失規律及養分流失規律,並對小流域土壤的現狀進行評價。
  9. The erosion and fertility in the mine spoils of mufu mountain in nanjing was researched, based on this research the soil in mine spoils of mufu mountain was improved with the remnant soil in the urban construction, in addition, the result of revegetation was analyzed too

    摘要對南京市幕府山礦區廢棄地的植被恢復對土壤、土壤等的影響進行了研究,研究表明通過城市建築余土等對礦區廢棄地進行土壤改良,是城市郊區礦區廢棄地土壤改良和進行植被恢復的有效途徑。
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