風蝕地 的英文怎麼說
中文拼音 [fēngshíde]
風蝕地
英文
blow land-
Wind erosion - induced desertification not only influence the agricultural production of the region. but also threaten the entironmental quality of the leeward region
風蝕沙化不但影響風蝕地區農業生產,也威脅著下風地區環境安全。Wang s. huang m., shao x., mickle, r. a., li k., ji j. 2004. vertical distribution of soil organic carbon in china. environmental management, 33 ( supplement 1 ) : s200 ? s209
胡云峰,王紹強,楊風亭. 2004 .風蝕作用下的土壤碳庫變化及在中國的初步估算.地理研究, 23 ( 6 ) : 760 - 768There were no coastal sand bar formation process for generating the qilihai lagoon, and its predecessor is a deflation low - lying land formed during the last stage of late pleistocene, so the qilihai lagoon is not a lagoon scientifically
七裏海也不是科學意義上的?湖,它沒有形成海岸沙壩這一?湖形成的過程,其前身是晚更新世末期由風暴活動形成的風蝕窪地。The main purpose of this discussion is to det ermine the appropriate roadbed earthfill height according to the degree of sandburry, windblown sand drift test, wind tunnel test, windbed stability, road economy and traffic accident analysis. the appropriate roadbed earthfill height is one of vital factors in preventing highways from the harm of sand
本課題研究的主要目的是沙漠公路在地理地貌、植被地質、沙源、風速強度等因素的影響下對公路形成的沙埋和風蝕危害,結合公路沙埋、風沙流實驗、風洞實驗、路基穩定性、道路經濟性、交通事故分析,確定路基的合理填土高度。Wind as a sculptor of landforms is frequently given more credit than it deserves.
人們往往把風對地形所起的刻蝕作用估計過高。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。In a wind - eroded region, such measures as exploitation of water resources, water diversion for sand removal, planting of trees and growing of grass, installation of artificial sand - break and forest network shall be adopted to build a protective system for windbreak and sand - fixation, thereby controlling hazards of sand storms
在風力侵蝕地區,應當採取開發水源、引水拉沙、植樹種草、設置人工沙障和網格林帶等措施,建立防風固沙防護體系,控制風沙危害。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。It is also the key factor to improve the highway grade in these areas. the sand harm usually happens and the roadbed is obviously influenced by the sand foundation stability condition and the groundwater if the roadbed earthfill height is low. on the contrary, the wind erosion usually happens if the height is high
公路路基的合理高度是保證沙漠公路不產生沙害的主要因素之一,同時是提高沙漠地區公路等級的關鍵,沙漠公路路基填土高度低,則易出現沙埋病害,路基受沙漠地基穩定狀況及地下水的影響顯著,反之,則易出現風蝕病害,並存在高填方路基和穩定性問題,工程造價相應增加。According to the idiographic complexion of our country, the article elucidated the connotation of conservation tillage : it ' s a technology of tillage with minimum tillage or no - tillage so as to reduce the soil ' s disturbing, using stalk cover the field so as to decrease laboring and tillage ' s cost, preventing wind & water erosion, and improving the fertility of soil and the ability of fight a drought
摘要根據保護性耕作在我國的實施情況並結合國外已有研究結果,我們認為保護性耕作的內涵為:保護性耕作措施就是對農田實行少耕或免耕,盡可能減少對土壤的擾動,並以秸稈覆蓋地表,達到減少勞動強度和生產投入,防止農田風蝕和水蝕並提高土壤肥力和抗旱能力的一種農田耕作技術。The gullies are formed by the processes of infiltration - interflow - collapses. ( 2 ) in the slope with sand - loess, the major factors of water erosion are the rainfall intensity and rainfall amount of annual first rainfall. ( 3 ) in the region, the evolution processes of slope gully system results from alternative actions of sand deposition and water erosion
( 1 )有片沙覆蓋的斜坡小區,徑流量少,但徑流含沙率大,坡溝的形成過程是:垂直滲流坡地潛流崩塌; ( 2 )在沙黃土斜坡小區,每年春末夏初降雨的強度及降雨量是決定坡面產沙量的關鍵因素; ( 3 )該區坡溝系統的形成發育是風沙沉積、風蝕與水蝕交替作用的結果。Analysis of factors causing wind erosion in sandy land
沙地土壤風蝕動力因子分析Conservation tillage is an effective method to prevent soil from wind and water erosion in northern arid regions of china
該地區採用保護性耕作技術,可以有效地抵禦春旱、控制風蝕、防治沙塵暴、提高產量和培肥地力。In terms of geological engineering this paper has preliminarily analyzed all kinds of damages causing the north district rock caves to destroy seriously, including wind erosion, rain erosion, flood erodes, crack development, rock body collapsing and environmental desertification
本文從地質工程的角度,初步分析了造成北區石窟嚴重破壞的各類病害,包括風蝕、雨蝕、洪水沖刷、裂隙發育、巖體坍塌及環境沙漠化等。Using emended gauss diffusion mode, taking wind erosion modulus as the ground oil pollutant sources, dust and oil pollutant quantity in air and polluting load in water were calculated, a relative model was founded
本文以土壤侵蝕的風洞實驗求得污染源源強,採用高斯模式對地表風蝕作用的傳輸量進行估算,進而對石油開發區落油通過大氣傳輸途徑對區域水環境(博斯騰湖)的影響進行了預測,建立了相應的模型。The analysis of climate factors effecting wind erosion in maowusu sandy land
毛烏素沙地土壤風蝕的氣候因子分析The wuchuan county locating the ecological vulnerable region of northern foot of yin mountain was studied and divided by the principal components cluster into the four ecological economical regions of returning farmland to forest land, southeast mountain agricultural region, north hillside agricultural region, northwest wind erosion and sandy region of joining agriculture and herbage, and southwest region of joining agriculture and herbage
本文以位於陰山北麓生態脆弱帶的武川縣為研究對象,通過主成份聚類分析將武川縣劃分為東南部山地農業區、北部丘陵農業區、西北部風蝕沙化農牧結合區和西南部山地農牧結合區等四個退耕還林生態經濟類型區。The result that the experimental sector has stable wind flow and the characteristic of wind speed which makes the wind speed more consistent with real condition of the surface of land has the rule of logarithm, which is matched with the requirement of wind erosion experiment
通過試驗驗證,風洞實驗段具有穩定的氣流場,且風速廓形滿足對數規律,符合自然大氣近地面層的風速特徵,說明風洞滿足風蝕試驗要求。In this paper, some recent progresses about aeolian g eomorphology were briefly introduced from three aspects as follows
最近研究表明:風棱石在重建古環境方面有重要作用,雅丹是以風蝕為主並在其它地貌過程參與下形成的。It as suggested that management should be strengthened to ensure a better effect in applying these measures to further improve ecological environment
根據各地的具體環境和條件,可以單獨或配套使用這些措施,以達到控制風蝕的目的;同時,應加強管理,使這些措施發揮其應有的作用,以便進一步改善環境。分享友人