available variability 中文意思是什麼

available variability 解釋
有效可變性
  • available : adj. 1. 有用的，可利用的。2. 可以得到的，可以買到的。3. 有效的。4. 有當選希望的；願意參加競選的。adv. -bly 有效地。n. -ness 有利，有效，效用，利用。
  • variability : n. 易變，變化性；【生物學】變異性。
  1. Abstract : digital basinis made from digital elevation model considering spatial variability within a catchment. on the basis of digital basin, the digital approach to describing hydrological processes within a catchment is investigated. digital hydrological model is regarded as a modern physically - based modeling technique that includes a large amount of information. the case study on the shiguanhe catchment in the huaihe river basin, intensified observation field of gewex asian monsoon experiment project, has shown that the digital mode lperforms very well not only in simulating runoff processes at any specific site, but also in simulating spatial distribution and temporal variation of hydrological elements and state variable ( especially soil moisture ), if compared with traditional hydrological models. that provides solid foundation for full use of now available observation in formation and in - depth mining of hydrological data

    文摘:考慮流域下墊面空間變異性，基於數字高程模型構建了數字流域，並在此基礎上對描述流域水文物理過程的數字方法進行了探討.文章認為，數字水文模型是一種有物理基礎的包含大容量信息的現代模擬技術.史灌河流域實例研究表明，數字水文模型可以十分方便地輸出水文要素和狀態變量的空間分佈與時間序列，這對充分利用現有觀測信息進行水文信息的深層挖掘創造了條件
  2. This research investigated the variability and the quantitative relationships among soil nutrients ( soil ph, total n, organic matter, available p ), growth status ( spad, lai and spad lai ) and yield of rice. all data were analyzed by both classical statistics and geostatistics based on gis. by further integrating gis, gps and crop management knowledge model, a decision support system for precision farming ( dsspf ) was developed, which laid a technical foundation for the practical application of precision farming system

    本研究基於gis技術，以經典統計和地統計學為分析手段，確立了田區土壤養分（土壤ph 、全氮、有機質、速效磷、速效鉀） 、水稻作物長勢（ spad 、 lai 、 spad * lai ）和產量的空間變異特徵及定量關系；進一步以作物管理知識模型為智能決策支撐，提出了gis與模型及gis與gps的組件化集成技術，構建和實現了基於田區作物產量、土壤養分和苗情監測差異的精確農作決策支持系統（ dsspf ） ，為精確農作系統的應用奠定了技術基礎。
  3. That of available potassium showed the interruption of human activities with the highest value ( 81. 2 % ), and of cec, total potassium, available copper showed that spatial auto - correlation was master with the value less than 25 %. there was no relationship between spatial variability and distance, but with the nugget of 0. 2, therefore, the distance

    Kropng插值結果進一步表明土壤表層養分含量具有高度的空間異質性，決定了空間格局的存在，養分含量的斑塊（ patch ）的大小、形狀及空間分佈等具有顯著的差異，但是不論在什麼方向，養分含量由低到高的分佈梯度規律總是存在的。
  4. Based on the importance of heat flux variability to the earth ' s climate change and the dependence of the study about heat flux variability on the accuracy of heat flux data, this study will focus on the quality evaluation of heat flux datasets available and seasonal and interannual variability of latent and sensible heat fluxes in the tropical atlantic ocean

    基於海表潛熱和感熱通量的時空變化在全球變化中的重要性和海表潛熱和感熱通量研究對熱通量資料產品精度的依賴性，本文重點就現有熱通量資料產品的質量和熱帶大西洋海表潛熱和感熱通量的季節和年際變化開展較深入的研究。
  5. Geo - statistics is the most available method to study spatial variability and spatial distribution of soil properties. previous studies were concentrated on spatial variability of soil properties and soil water - storage in flat, ignoring how terrain affects soil properties

    以往的研究都集中於平地土壤特性的空間變異性研究，對坡面土壤特性研究較少，從而，忽略了地形對土壤特性空間變異性的影響。
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