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soil science 土壤學。

soilage

Based on the theory of modern foundation soil science and unsaturated soil mechanics , the author has tried to combine microstructure properties with macro - mechanical behavior of soil consistently . the strength and deformation properties of high - saturated soil have been investigated , and the constitutive model of the tamped soil has been built . these have not been reported in related literatures available , and thus are the innovation of this paper 以現代土質學、非飽和土力學理論為指導,將土的微觀結構特性與宏觀力學行為有機結合起來,研究強夯后高飽和度地基土的強度和變形特性,建立高飽和度地基土的本構模型,國內外尚未見相關文獻報導,這是本論文的創新之處。

Applied the principle and method of soil erosion , soil erosion mechanics , soil science , mathematical statistics , hydrology , and soil and water conservation method , we evaluate the energy formula of domestic and international in the loes s plateau used . analyzed the research district soil erosion energy characteristic 運用土壤侵蝕學、土壤侵蝕力學、土壤學、數理統計學、水文學、水保法等原理和方法,對國內外能量計算公式在黃土高原的應用進行了評價,并分析了研究區土壤侵蝕能量特征。

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。

In the 70s , geostatistics was introduced into soil science field , which overcame the problem of using classical fisher statistics theory to study the rules of soil properties , based on the regionalized variable theory 70年代,地統計學方法被引入土壤科學研究領域,克服了應用經典的fisher統計理論在研究土壤性質空間變異性規律方面的不足,其理論依據是區域化變量理論。

The research of ecosystem degradation , restoration and reconstruction in these reg ions has became one of the hot points in soil science , water and soil conservati on science and ecology 研究主要集中于:紅壤區土地退化的成因、過程、機理及退化特征的診斷與評價研究,而且其評價由單一方面如植被、土壤轉向包括環境劣化、形態退化、肥力退化、污染退化等多方面的綜合評價。

This company provides a full range of consulting services in the field of bioengineering for the fields of aquatic biology , ecology , and water quality ; hydrology , fluvial geomorphology , soil science , and wetland management 該公司是一個生物工程領域的全方位咨詢公司,業務范圍涉及到水生生物學、生態學、水質量、水文測量、水文學、河流地貌學、土壤科學和濕地管理等。

An extensive collection of on - line tutorials provide information about laboratory safety , soil sciences , soil physics ( programs about heat transport , water infiltration , oxygen diffusion ) , and the asis ( australian soil identification system ) 此外,網頁上的“在線指南”欄目還提供有關實驗室安全、土壤科學、土壤物理學等方面的信息。

Back at the university of idaho in moscow , idaho , where she is a doctoral candidate in soil science , word got around that sanchez - de leon had found what many experts were beginning to think had grown extinct 在桑雪茲-迪里昂作為土壤科學博士候選人的愛達荷州莫斯科市愛達荷大學,人們都在談論著她發現許多專家開始認為已絕種的生物。

The site is managed by swiss soil science society . it offers information about the society and swiss research organizations , education , and literature databases of soil science 描述:該網站提供瑞士土壤科學協會以及瑞士國內有關土壤保護、土壤科學研究機構、相關數據庫等方面的信息。

Acid rain , as one of the major environmental problems man is confronted with , is becoming a hot spot in the study of soil science and ecology 摘要酸雨是人類當前面臨的最嚴重的環境問題之一,并日益成為土壤學和生態學研究的熱點。

More than 200 of them were graduate students in the areas of agricultural economics , packaging , and crop and soil sciences 其中他們中超過200名畢業學生主攻農業經濟,包裝,和農作物及土地科學領域。

More than 200 of them were graduate students in the areas of agricultural economics , packaging , and crop and soil sciences 其中200多名是在農業經濟、包裝學以及農作物和土壤科學的研究生。

More than 200 of them were graduate students in the areas of agricultural economics , packaging , and crop and soil sciences 其中有200名畢業生就讀于農業經濟、包裝以及農作物和土地科學。

More than 200 of them were graduate students in the areas of agricultural economics , packaging , and crop and soil sciences 他們中200個以上是農業經濟,包裝,和作物與土壤科學的研究生。

More than 200 of them were graduate students in the areas of agricultural economics , packaging , and crop and soil sciences 其中有200個是農業經濟,包裝,莊稼和土地科學的研究生。

For exploration and innovation of soil science frontiers the comprehensive report of 18th world congress of soil science 第18屆國際土壤學大會情況綜合報道

Water engineering of agricultural lands - terms - part 3 : soil science , soil taxonomy , soil investigation 農業水利工程.術語.第3部分:土壤學土壤分類學和土

International society of soil science 國際土壤協會

Perception on 18th world congress of soil science 對第18屆國際土壤學大會召開的認識與體會