被覆蓋土壤 的英文怎麼說

中文拼音 [bèirǎng]
被覆蓋土壤 英文
mulched ground
  • : Ⅰ名詞1 (被子) quilt 2 (姓氏) a surname Ⅱ動詞[書面語]1 (復蓋) cover; spread 2 (遭受) suffe...
  • : 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
  • : 名詞1. (土壤) soil 2. (地) earth 3. (地區) area 4. (姓氏) a surname
  • 覆蓋 : 1 (遮蓋) cover; overlap 2 (植被) plant cover; vegetation3 (保護層 覆蓋物) cover; covering; ...
  1. Based on the actual situation in the upper reaches of minjiang river, the main assessment factors such as strata structure, landform, vegetation covering eco - environment, surface water, ground water, agrotype and geological hazard are selected in this paper

    本文根據岷江上游的實際情況選取巖性構造、地形地貌、植生態區、地表水、地下水、類型及地質災害等因素作為評價因子。
  2. The primary representations of the vulnerabilities of water resource in hengyang basin where is a typical hilly region with red and purple soils in south china are analyzed : the precipitation re source varies greatly in spatial and temporal distribution ; the soils and rock property are not in favor of water and soil conserving ; the structure of crops needs a high water consumption ; and the farm irrigation works are timeworn and frangible

    摘要以中國南方典型的紅和紫色丘陵區衡陽盆地為例,分析論述了衡陽盆地地表水資源脆弱性主要表現在:降水資源時空分佈不均勻;不利於水保持的地表物質組成和植;耗水量大的農業種植結構以及調蓄水功能弱的農田水利工程體系等方面。
  3. To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range

    地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反(散)射光分量進行了深入分析,在所提出的濕潤光譜模型和植冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了含水量、植( lai ) 、地形起伏和海拔高度的影響,並以象元坡面定義的半球空間立體角對環境入射光進行積分,使周圍地形和天空散射光均得到適當考慮,計算量又在可接受范圍內。
  4. Meanwhile, the study also shows that the diversity of studied cave animals is inversely proportional to human population density and water quality ; and bio - diversity, to some extent, is proportional to soil fertility and amount of chemical fertilizer, but inversely when excessive ; the correlativity between bio - diversity and vegetation cover rate is not obvious, when ground vegetation is strongly interfered by human being ; the amount of diestrammena marmorata is proportional to the d iversity of plant, and inversely proportional to soil fertility, and in a way, to water quality ; and the correlativity between community and water quality and soil fertility, and between water quality and the amount of mosquito and fly, is not as good as expected. the author points out that diestrammena marmorata, bat, mosquito, fly, oreolalaxrhohostig metus ( or cudata ), and fish can be chosen as in

    同時,研究還表明:調查洞穴的物種多樣性與人口密度、水質成負相關;在一定范圍內,物種多樣性與化肥施用量、肥力成正相關,超過一定的值則成負相關;在人類對地表植的高強度作用下,物種多樣性與植率的相關性不明顯;蚊蠅數量與肥力基本上呈正相關;斑灶馬數量與植物種數呈正相關,斑灶馬數量與在一定水質范圍內與水質呈負相關,與肥力呈負相關;群落數與水質和肥力、蚊蠅數量與水質都不能表現較好的相關性;研究認為,可以選擇斑灶馬、蝙蝠、蚊蠅、紅點囊蟾(或有尾類) 、魚類等作為指示動物對洞穴環境進行監測。
  5. Vegetation fraction is a most important indicating to vegetation, and it is one of the most important factors of eroding soil

    度是衡量地表植狀況的一個最重要的指標,也是影響侵蝕與水流失的主要因子。
  6. The middle and lower parts of woodland and grassland had higher soil water contents during rainy season, which resulted from smaller evapotranspiration and more infiltrated water with a lower gradient. however, upslope runoff infiltration was another reason for hillslope with a lower cover ratio, such as bare land

    雨季林草地坡中下部水分含量較高的原因,可能主要與其蒸散較小且坡度較緩導致入滲水量較多有關;但是對于植度較低的坡地(如裸地) ,坡中下部水分含量較高還與上方來水有較大的關系。
  7. Moreover, evapotranspiration consumes mainly net radiation on a clear day and sensible heat flux is greater than latent heat flux on a cloudy day above spring wheat field

    在有植或裸地下墊面,晴天、陰天的凈輻射、潛熱、感熱及熱通量均表現出了與平均狀況一樣的日變化特徵。
  8. 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 )豆科植物較無植地,養分朝著良性循環轉變。有機質、速效鉀含量提高,全氮含量稍有增加,速效磷含量降低, ph值有所下降;這些變化主要發生在表層。
  9. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植地表雷達波對地表水分的敏感性,建立了半經驗植雷達後向散射模型; 2 ) .研究發現在農作物等矮小植地表,植層直接後向散射與植類型相關,且在植生長期,雷達後向散射系數對植含水量的敏感性要高於對植高度變化的敏感性; 3 ) .解決了單參數雷達地表水分反演問題中,雷達入射角和地表粗糙度的影響這一難點問題; 4 ) .利用介電模型校正了不同類型對反演地表體積含水量的影響; 5 ) .在以上成果基礎上,建立了完整的單參數雷達地表水分變化探測反演演算法,經地表驗證,模型反演地表水分變化值的精度為rmse = 0
  10. Runoff amount in rainy season for different land - use types constituted more than 50 % of annual amount, while the proportion in drought season was less than 17 %. of annual total soil loss amount, the control accounted for 60 % and complex proportions for other lands. however, soil loss amounts in drought season for all lands were lowest in one year

    雨季徑流量均佔全年的50以上,而旱季徑流量佔全年的17以下;而不同地利用方式的流失量佔全年流失量的比例則較為復雜,對照流失量佔全年的60 ,而其它地利用方式由於植、耕作和管理措施的季節性可能發生3 6月的流失量小於7 10月的流失量,但旱季流失量所佔比例均最小。
  11. The main causes resulting in the ecological issues were analyzed in terms of geological conditions, climate factors, forest coverage and soil conditions

    從地質條件、氣候因素、植以及條件等方面對該地區的生態環境問題成因進行了探討。
  12. The study results showed that it was suitable for assessing the impact of highway route selection on the ecological environment using quantitative analysis indexes of vegetation coverage, biomass, flood detention ability, soil character change, cropland occupation and water and soil erosion, and it was suitable for route selection using the comprehensive ecological impact assessment method

    結果表明,用植率、生物量、滯洪能力、變化、農田佔用、水流失量等6項指標來定量分析生態影響程度效果較好,採用綜合生態影響評價指數法確定線路的舍取是可行的。
  13. The differences of biodiversity indices and vegetation coverage between the designed vegetation restoration pattern and the field data indicated that alpha and beta diversity indices were decreased in some parts of the region after vegetation restoration, however, vegetation coverage was reasonably increased, which would enhance the capability of soil and water preservation, thus could improve the ecological security of the region

    通過對比分析現狀植度及生物多樣性與植恢復格局預測結果的差異,對區域植恢復的效果進行評價,認為盡管植恢復格局設計使部分區域生物多樣性下降,但它整體提高了地表植度,增強了抵禦侵蝕的能力,對保障區域生態安全具有積極的效果。
  14. This technique is mainly involved two steps : 1 ) vegetation effects correction : we used ndvi ( normalized difference vegetation index ) derived from tm and avhrr measurements for spatial and temporal variations of vegetation covers at different scales

    但由於電磁波與地表相互作用的復雜性,雷達後向散射系數除受地表介電常數(水分)影響外,還受到地表粗糙度、類型、植以及雷達入射角、頻率、極化等多種因素的影響。
  15. Using a simple radiative transfer model for vegetation volume scattering and the integral equation model ( ibm ) for surface scattering with the field in situ measurements as the input, we compared the simulated and sar measured backscattering coefficients in different agricultural fields

    特別是在植地表,對其下水分的監測更帶有極大的困難性。因此,利用雷達後向散射系數反演水分必須首先充分理解微波與地表的相互作用過程。
  16. 2 ) radar incidence angle and surface roughness correction : to make radar incidence correction and eliminate the surface roughness effects, a wide range of surface parameters ( soil moisture, surface rms height, correlation length, incidence angle ) was input to the ibm model to simulate the effect of surface roughness and radar incidence angle on the sensitivity of soil moisture to the radar backscattering coefficient. a simple model was established to simulate the effects of incidence angle and surface roughness. 3 ) establishment of soil moisture change inversion model : according to a modified ibm model simulation results, the bare surface backscattering coefficients can be expressed as a funtion of the dielectric component for a given surface roughness when the surface slope greater than 2. 0, which is valid for most nature surface : in above equation, r0 is the surface reflectivity at normal incidence

    本研究中,首先利用基於微波輻射傳輸方程的微波植模型和積分方程( iem )模型模擬了各種地表水分含量情況下,植、地表粗糙度(包括地表均方根高度和相關長度) 、雷達入射角對c波段(頻率4 . 7ghz )水平極化( hh )雷達後向散射系數的影響,在此基礎上,建立模型消除了植、地表粗糙度、及雷達入射角對雷達後向散射的影響,利用多時相50m解析度radarsatscansar雷達後向散射系數圖像反演得到了地表水分變化模式信息。
  17. But variation of the co ; concentration in the bottom soil show that sink effect of carbonate rock on the soil air co2 ( 2 ) the diurnal observation results of soil co2 dynamics in the different vegetation show that the soil co2 concentration in the bare land is sensitive to environment, but the soil co ; concentration in the other experimental site, which covered with vegetation, restrain the variation

    ?大氣界面上,表層可為大氣提供游離co _ 2 ;而深部co _ 2濃度的變化則顯示下碳酸鹽巖對co _ 2有吸收作用。 ( 2 )在不同植系統中,co _ 2晝夜動態變化進程不同。觀測資料表明:裸地對外界環境的變化相當敏感,而有植的竹林和草甸對co _ 2濃度動態變化有平抑作用。
  18. And then it conceived integrated indexes and computed weight of each index with analytic hierarchy process ( ahp ). moreover it carried out sustainable development assessment for the future, the conclusion is that changchun high - tech industry development area will be elementary sustainable development in 2005, and will get to sustainable development from 2010 to 2015. at last it brought forward suggestions and countermeasures such as rational land exploitation, improving investment environment, establishing financing system, consummating innovation system, strengthening environment safeguard and establishing iso environmental management system

    論文分析了長春高新區「九五」計劃實施前及現狀的地利用狀況及變化過程,並分析了由此引發的生態系統的轉變以及對植環境、水流失、景觀及人口生態結構的影響;論文還構建了指標體系,應用層次分析法確定指標權重,對長春高新區近期、中期及遠期的發展目標進行了預測性的可持續發展評判,評判結果是: 「十五」計劃末,長春高新區處于基本可持續發展狀態, 2010年至2015年將達到可持續發展狀態;最後,論文為長春高新區實現可持續發展的目標提出了如下對策及建議:合理開發地;改善投資環境;建立融資體系;完善創新體系;加強環境保護;建立is0環境管理體系。
  19. The cause is that there are large distribution areas of moistly soil, wetly lands, and vegetative land, and smaller area of snow on the plateau

    高原反照率年變化的主要原因是含水量、雪分佈面積及植度的變化。
  20. Assessment of vegetation coverage factor in soil erosion model based on aster image interpretation

    影像的流失方程植因子估計
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