濾土帶 的英文怎麼說

Nitrates produced in excess of the needs of plant life are carried away in water percolating through the soil.

植物生存所需要的過量硝酸鹽通過土壤滲濾而被帶到水中。

A brief introduction is given to the treatment of the zeya dam foundation, principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir. as for the excavation of the sand - gravel zones, except the toe slab and its 1 / 9 bottom width down stream, the alluvial layers are excavated to the micro - weathered rocks, while the other sections remain unexcavated. regarding to the treatment of the fracture zones, concrete filling is used for the toe slabs and semi - permeable materials are used for other section. according to the construction characteristics, a filter is placed in the down stream embankment foot. to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted. as a result safety, economic benefit, convenience in construction and good performace are achieved

簡要論述澤雅水庫面板堆石壩壩基處理和防滲的原則及設計要點.趾板基礎和堆石體各區砂礫石基礎開挖，除趾板與其下游1 / 9底寬范圍以及壩腳挖除沖積層至弱風化（局部微風化）基巖外，其餘部分均予以保留.斷層破碎帶處理，趾板部位採用混凝土塞，其它部位採用半透水料置換，並根據本工程特點在下游壩腳加設了反濾層.為提高壩基的整體性和防滲性能，對趾板進行了固結和帷幕灌漿.達到了安全、經濟、便於施工的目的，運行情況良好，可為面板堆石壩的設計和研究提供參考與借鑒

As a hard - core part of epikarst ecosystem, soil makes a hinge action in the karst process. it forms a leach layer between rainfalls and carbonate and gives a great much time and space in the karst process. soil co2, a very pivotal factor in the karst dynamic factors, makes an action of driving forces in karst dynamic system

土壤作為表層帶巖溶生態系統的核心部分，在巖溶過程中起著樞紐作用，它的存在使得大氣降水與碳酸鹽巖之間形成一個「過濾層」 ，賦予巖溶作用更廣闊的時間和空間，其中土壤co _ 2是個非常關鍵的因子，它是巖溶作用的重要物質來源，在巖溶動力系統中起著驅動力作用。

Through field investigation and analysis indoor, with studying all hydrochemistry data in detail, including macro components and micro components, the author finds out the hydrochemistry feature of ground water. for further specifying the ground water system, with cluster analysis of macro components of surface water and ground water in total 147 samples and the analysis of micro components, including ree, the main ground water systems are distinguished by and large, especially the ground water system main of fault no. 7 and fault no. 15 water bearing belts which have differences at macro and micro components between the two ground water systems, moreover, the main hydrogeochemistry effects are established such as lixiviation, oxidization, precipitation and mixing effect, especially the mixing effect which result in the complexit y of the hydrochemistry of deep bearing tectonic fracture water. based on them, the hydro geological model of upper dam base is established, meanwhile the author summarizes the hydrochemistry feature of weathering crevice water, surface tectonic crevice water and deep tectonic crevice water

為此，本文以大崗山壩區水文地球化學問題為研究對象，通過野外調查和室內分析，詳細的研究了壩區水化學資料，包括宏量組分、微量組分，查明了壩區地下水水化學特徵，對採集的147個地表及地下水樣的宏量組分進行聚類分析，結合微量元素，稀土元素的研究，並應用二氧化硅地熱溫標確定了深部構造裂隙水的熱源深度，基本區分了壩區各個主要地下水水系，特別是以f7 、 f15斷裂含水帶為主的地下水系，它們的宏量組分、微量組分以及稀土等方面均存在差異，以此為基礎，結合壩區水文地質條件，建立了壩區的上壩址的水文地質模型，同時通過分析了壩區花崗巖區的水化學資料，確立了壩區主要的水文地球化學作用，分別為：溶濾作用、氧化作用、沉澱作用、以及混合作用，混合作用是導致深部承壓裂隙水水化學復雜的主要原因，並總結了壩區風化裂隙水、淺部構造裂隙水、深部構造裂隙水的水化學特徵。