land sediment 中文意思是什麼
land sediment
解釋
陸地沉積物-
Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions
同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。 -
Study on climatic and environmental changes of the past 500 years from lacustrine sediment in otindag sandy land
湖泊沉積記錄的近500年來渾善達克沙地氣候環境變化 -
3 analyzing particle size of the wind - blown sediment and surface soil indicate that the former in 0. 02mm - 0. 2mm occupy about 40 % and 55 % of sloping field and shoaly land of bashang, which shows that bashang is the erosion and desertification region or the latency. 4 the search of decreasing effect of wood strap indicates that in lower wind speed the effect is distinct
3風蝕物及表層土壤顆粒粒徑分析表明，地表200cm高度內風蝕物粒徑在0 . 02mm 0 . 2mm之間；壩上地區坡梁地與灘地該粒徑范圍顆粒分別佔40和55左右，說明壩上地區是風蝕沙化或潛在風蝕沙化地區。 -
Through the analyses of characteristics of gully thalweg and soil erosion in upland and gully land, sediment sources in small watershed, sediment yield relationship between upland and gully and ecological functions of vegetation corridor, it is considered that vegetation corridor combined with land preparation measures may block runoff and sediment from upland and reduce the amount of soil erosion in a watershed by 54. 5 % ~ 77. 0 %
摘要在分析黃土高原地區的溝沿線、溝沿線上下溝間地和溝谷地土壤侵蝕特徵、小流域泥沙來源、坡溝侵蝕產沙關系的基礎上，結合廊道的生態功能和以往的研究結果，認為在溝沿線的上部建立草灌與整地工程措施相結合的植物廊道，來攔蓄阻截溝間地的來水來沙，可使流域的土壤侵蝕量減少54 . 5 % ~ 77 . 0 % 。 -
Study of a flood channel or flood - dominated channel of estuary is not only an important content in estuarine dynamic geomorphology and dynamic sediment, but also is a practical problem nearly related to the selection of harbor sites, regulation of sea - entering waterway, bank revetment and land reclamation, and even the comprehensive exploitation of estuaries
河口漲潮槽的研究不僅是河口動力地貌學和河口動力沉積學研究的重要內容和前沿課題，而且對港口選址、通海航道治理、護岸圍墾以及河口綜合開發利用都具有重要的研究和應用價值。 -
The department of ecology and biodiversity of the university of hong kong has been appointed to carry out the 2001 - 02 programme. the main aspects of monitoring include sampling of marine benthic animals, analysing bird population data, habitat extent and conditions. cross reference will be made to environmental data such as mudflat sedimentation, water quality, sediment quality and land use changes
香港大學的生態學及生物多樣化學系，獲委派進行二零零一至零二年度的計劃，主要監測范圍包括抽樣調查海洋底棲動物、分析鳥類種群數據、生境分佈及狀況；亦會參考相關的環境數據，例如泥灘的沉積情況、水質、沉積物的質素、土地用途改變等，作為對照。 -
Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method
研究認為： （ 1 ）黃河河口口門逕流潮汐區域並非持續保持淤積狀態，在特定的來水來沙、邊界條件和海洋動力條件下，該區域可以處于沖刷狀態； （ 2 ）從河口泥沙沉積分配的過程來看：三角洲與濱海區泥沙的沉積變化趨勢是基本一致的，各部位的泥沙沉積比例變化基本呈波動狀態，且三角洲與濱海區泥沙的沉積比例與來沙量密切相關，基本成正比關系； （ 3 ）在口門處，影響泥沙沉淤的因素主要集中在潮汐頂托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等，本報告主要對口門加寬，口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: （一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式，據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 ）本項研究首次論證了河口三角洲岸線動態平衡的概念，並建立了黃河河口來沙量與造陸面積的相關關系，得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 ）本項研究首次提出了河口泥沙優化調控的概念，並對其宏觀優化調控模式進行了初步探討。 -
The antarctica plays an important role in the study of global changes and it is the only land without large - scale human activities influence which makes it is sensitive to the global climate changes. penguin is the most impartment factor in the antarctic environment and its dropping sediment records the history of the population and the distribution change on the ardley island
南極地區在研究全球變化中具有突出的地位，南極地區的各種環境因子對全球氣候變化有敏感的反應，而且它是地球上唯一未被人類活動大量影響的地區，所以，南極地區的生態學研究有特殊的重要性。 -
Terraces on slope land delete the conditions of causing soil and water loss. ponds, cistens, water cellars enhance surface water use efficiency, warping dams can store flood, decrease flood peak, retain sediment, and conserve water
坡地修梯田消除了產生水土流失的條件，蓄水池、旱井、水窯提高了對地表水資源的利用率，淤地壩具有蓄洪水、削洪峰、攔泥沙、涵養水源的作用。 -
On the basis of investigated data of wangmaogou watershed check dams system, the benefits of flood trapping and sediment blocking, increasing land productivity, eco - environment, society are analyzed
根據王茂溝流域淤地壩壩系的調查資料，分析了王茂溝流域壩系的蓄洪攔泥、增產、生態、社會效益。 -
The main result is as follows : 1. after erosion, the content of organic matter, total nitrogen and the available nitrogen in the sediment is more than that of soil sample. namely the enrichment phenomenon of organic matter, total nitrogen and the available nitrogen in slope cultivated land erosion soil is obvious
黃?土受侵蝕后，泥沙樣中有機質、全氮和堿解氮的含量都高於雨前採集的坡地表層土樣，即黃?土坡耕地水土流失中有機質、全氮和堿解氮流失的「富集」現象明顯，而全磷和速效磷卻無明顯的「富集」現象。 -
There is sharp gradient in top and small gradient in bottom. the ability of removing flood is high in top and it is small in bottom correspondingly. sediment silt up continually, so the bed of river is jacked up year by year and become the famous river on land
由於泥沙含量高，現行河道已行水140餘年，山東段河床上寬下窄，坡度上陡下緩，排洪能力上大下小，在泥沙淤積作用下，河床逐年抬高，成為世界上著名的地上「懸河」 。 -
Through the dome runoff sediment deposition trial in three experiment stations including ningcheng, helin, dongsheng in inner mongolia, using the way of data analyzing, whether the relationship of representative influencing factor of soil erosion and the amount of soil erosion of sloping farm land in loess hilly in inner mongolia during once rainfall is exist and how much is the degree of correlation
摘要通過對內蒙古寧城、和林、東勝三個試驗站進行坡面徑流泥沙試驗，採用數據分析法，研究內蒙古黃土丘陵區坡耕地在一次降雨中各典型影響因子與土壤侵蝕量之間是否存在相關關系及相關程度問題。 -
Alluvial soil a type of soil formed on river floodplains and deltas, where new sediment is deposited on the land during floods
沖積土：在河流漫灘和三角洲地帶由洪水沖刷泥沙沉積而形成的土壤類型。 -
Comparing the catchments with the same conditions at the same scales, we found that at the small scale catchments, the factor directly impacting the runoff variation and sediment variation was the relative distribution location at sloping fields, and at the median scale catchments, was the slope distribution of land use components, while at the large scale catchments, the distance distribution of land use components
在相近條件的同尺度集水區之間比較發現，小尺度集水區土地利用類型的坡位分佈格局對徑流和泥沙變化有較直接的影響，中尺度集水區土地利用類型的坡度分佈格局和大尺度集水區的土地利用類型的距離分佈格局對徑流和泥沙土地利用空間分佈格局對侵蝕產沙過程的影響的變化影響較大。 -
Silting land and sediment blocking benefit of check dam in hilly and gully region on the loess plateau
黃土高原丘陵溝壑區淤地壩的淤地攔沙效益分析 -
Working with international colleagues, they have applied dating techniques on the sediment itself and on finds including a land snail, a water snail and a mammoth tooth, all of which came back with an age of around 40, 000 years
科協家通過放射性碳鑒定技術和激光學鑒定技術斷定，這些腳印屬於人類，且約有4萬年的歷史。除此之外，科學家還發現了一隻蝸牛一隻水蝸牛和一顆猛獁的牙齒，並斷定它們也約有4萬的歷史。 -
Mapping symbols and nomenclature for erosion and sediment control plans for land distributing activities
地面配電項目腐蝕與沉積物控制規劃的映射符號和命名法 -
Impact of land use change on runoff and sediment yield
土地利用變化對產流和產沙的影響分析 -
Up to now, people have blamed this loss of delta land on the two large dams at aswanin the sediment that used to flow down the river
黑體部分是主題句的核心表達內容，大意是阿斯旺大壩應對三角洲土地流失負責（其餘內容不反了，因為關鍵要看懂這個意思） 。
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