land erosion 中文意思是什麼
land erosion
解釋
水土流失-
The discussion on models for estimating soil erosion rates from caesium - 137 measurements on cultivated land
示蹤農耕地土壤侵蝕速率模型的比較研究 -
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。 -
2 with the correlative analysis between the landuse structure and economic development, the main problems of landuse in youyang county are summarized as follows : ( l ) a large proportion of farmland are leanness, so the land quantity is bad ; ( 2 ) the forest vegetation is broken seriously, and the soil erosion is severe and the eco - environment is depravating ; ( 3 ) the number of land for water conservancy facilities is small ; ( 4 ) the proportion of town and transportation land is not accorded with landuse plan ; ( 5 ) land collocation is inconsequent ; ( 6 ) the land resources is plenty and a lot of land are not used but the land which can be opened up for farming
2通過對酉陽縣土地利用現狀結構與經濟發展的相關分析，總結了酉陽縣土地利用存在的主要問題有以下幾點： （ 1 ）中低產田比例大，土地質量差； （ 2 ）森林植被破壞嚴重，水土流失嚴重，生態環境惡化； （ 3 ）水利設施用地較少； （ 4 ）城鎮和交通建設用地欠賬大（ 5 ）土地資源配置不合理； （ 6 ）土地資源總量豐富，未利用地面積大，耕地后備資源不足。 -
Therefore, it is the urgent need of land exploiture and environment repair that how to investigate the current situation of soil losses accurately, quickly and dynamically, how to predict & inspect soil losses, and provide scientific base for the repair of soil erosion and implement of soil and water conservation planning. otherwise, the survey method of soil losses is lagger in yunnan
如何準確、快速、動態地查清水土流失現狀，進行水土流失預報和動態監測，為水土流失治理和水保規劃實施提供科學依據，是土地開發與環境整治的迫切需要，而雲南省在水土流失調查方法方面恰恰處于相對落後狀態。 -
The humankind is troubled seriously by a series of environmental problems, such as air pollution, ozonosphere destruction, glasshouse effect, acid rain, water pollution, land pollution and soil erosion and so on. all of these will stop our economy developing
大氣污染、臭氧層破壞、溫室效應、酸雨頻繁、水污染、土地污染、水土流失、草原退化、森林急劇減少、珍稀動植物滅絕、沙漠急劇擴大等一系列環境問題嚴重困擾著人類，各種公害接二連三地侵襲人類，再這樣下去，經濟將變成無源之水、無本之木。 -
The best way to undo the problem of soil erosion is to reforest the cultivated land
解決水土流失問題的最好辦法是退耕還林 -
Some particular measures to be taken are as the followings : ( 1 ) to establish a uniform harmony mechanism in the river basin in order to have a general plan for wetland protection and utilization ; ( 2 ) to combine the existing protection districts according to lake drainage area and species distribution, and to construct new wetland protection region in order to solve problems in management districts ; ( 3 ) to develop wetland restoration and reconstruction ; ( 4 ) to carry out reforesting in formerly cultivated land and to construct shelter forest of the yangtze river in order to control soil erosion and to preserve the water resource ; ( 5 ) to protect and utilize reasonably the wetland resources in the middle and lower reaches of the yangtze river ; ( 6 ) to strengthen the research of wetland science
具體可採取以下措施：在流域內建立統一協調機制，對流域濕地進行保護與合理利用，合理布局，統一規劃；按湖泊流域和物種分佈整合現有保護區，建立新的濕地保護區，解決目前管理上的制約問題；大力開展濕地修復重建；推進退耕還林、長江防護林等工程建設，發揮森林治理水土流失、涵養水源的作用；在保護的前提下科學合理地利用長江中下游濕地資源，開拓新的生產力；同時加強濕地科學研究。 -
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。 -
The major causes for dyke breaches are the strong permeability of soil at the dyke breaches, resulting in infiltration or piping firstly, and nonuniform settlement on water side and land side of the dyke due to a long - term soakage of the dyke, further leading to cracking and erosion, and finally breaching of the dyke
潰口發生的主要原因是潰口處土壤組成透水性強，先發生散浸或管涌等險情，加上浸滄時間長，迎水面和背水面堤身沉陷不均勻，導致裂縫出現和沖刷的加劇也都促成潰口發生。 -
We have extended our research on rocky desertification, provided solid theoretical and technical basis for the control of rocky descrtification and established successful rehabilitation model with chinese characteristics such as integrated control of small drainage area, returning cultivated land to forestry and grass, production of both animal and grass, changing slope to terrance in order to prevent water loss and soil erosion, aiding the poor byway of environmental immigration and development and improving representative fragility ecology, etc
貴州對喀斯特石漠化生態環境進行了長期、持久的研究，為石漠化治理提供了堅實的理論基礎和有力的技術支撐，形成了具有中國特色的成功治理模式：包括小流域綜合治理模式，生態農業模式，退耕還林還草、林草結合的草、畜（禽）生產模式，草地畜教業模式，坡耕地防治水土流失的坡改梯模式，環境移民與開發式扶貧模式，典型脆弱生態環境綜合治理模式等。 -
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 % 。 -
Tourism activity caused more deteriorated effect than agriculture, causing air increase in water bacteria. turbidity at some stations increased veery suddenly in may, due to forrential rain, showing land erosion has to be improved
農業活動亦會引發水中總菌數的增加，但觀光休閑活動所引起的效果則更大，因此宜有妥善的規劃。 -
Analyzing the sandstorm, the experts and scholars in our country have recognized that, the main reason of sandstorm happens is the increasing expansion of desertification land and the primary sector forming desertification of land is the soil wind erosion
專家學者研究沙塵暴發生的原因認為，我國沙漠化土地面積日益擴大是沙塵暴發生的重要因素，而土地沙漠化的首要環節是土壤風蝕。 -
In the comprehensive soil erosion control area in the loess plateau, a total of 15 million hectares of land have been treated - - 30 percent of the soil erosion area - - with over 300 million tons less silt flowing into the yellow river every year
黃土高原水土流失綜合治理區已累計治理1500萬公頃，使30的水土流失面積得到不同程度的治理，年輸入黃河的泥沙減少3億噸以上。 -
In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor
針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。 -
" many of the world ' s fastest developing cities are by the sea, and they could face floods, land erosion, and the pollution by salt water of fresh water supplies, " he said
他說： "世界上許多發展最迅速的城市都是沿海城市，它們將要面臨洪水、土壤侵蝕以及海水倒灌引起的淡水供應緊張等威脅。 -
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。 -
The results indicated that the preferences for forest public goods and services from high to low were ranked as water resources reservoir, soil stabilization and land erosion control, biodiversity conservation, carbon sequestration, and ecotourism offerings
分析結果顯示，社會大眾對不同森林公共服務之重要性認知從高至低分別是水資源涵養、土壤穩固與崩塌防範、生物多樣性保育、碳吸存功能、生態旅遊。 -
Investigation of land erosion model of houzhaihe catchment in puding, guizhou and its application
貴州普定后寨河流域土壤侵蝕模型與應用研究 -
The relative monetary values of water resources reservoir and soil stabilization and land erosion control were both higher than the compared private goods, but not higher than some sums of real money
而水資源涵養及土壤穩固與崩塌防範之相對貨幣價值是高過本研究提供比較之私人財貨價值，然仍低於本研究提供比較之某些實質貨幣價值。
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