沙丘群 的英文怎麼說
中文拼音 [shāqiūqún]
沙丘群
英文
dune complex-
It is concluded from our study results that the coastal dunes outside the qilihai lagoon are inherited dune complex formed from the eolian dunes in the last glacial period
研究認為,七裏海外的海岸沙丘群是在末次冰期時期風成沙丘群的基礎上演化形成的繼承性沙丘綜合體。A gemsbok gallops through the loose sand of namibia ' s namib desert. considered one of the world ' s oldest deserts, the namib contains sand dunes that reach some 1, 000 feet ( 305 meters ) in height
劍羚生長在非洲東部到西南部的乾旱地區。這是一群在納米比亞納米布沙漠上奔跑的劍羚。納米布沙漠被認為是世界上最古老的沙漠,這里的沙丘高達305米。Pukapuka - also known as danger island - is the most isolated atoll in the cooks group, and comprises three islets and a sandbank 1150km northwest of rarotonga
也叫危險島? ?是庫克群島中最孤立的一個島嶼,由三個小島和一座沙丘組成,距離拉羅湯加島1150公里。Qilihai was called the largest lagood in china, and many scholars suggested that the coastal dunes outside the qilihai lagoon developed from the offshore sand bars
摘要七裏海有中國第一大?湖之稱,多數學者認為七裏海外的海岸沙丘群是在濱外沙壩的基礎上發育形成的。The study on the formation, development type and evolution process of coastal dunes outside the qilihai lagoon shall be strenthened so as to get a deep - going understanding of the evolution mechanism and development trend of coastal dunes outside the qilihai lagoon
應加強七裏海外海岸沙丘群的形成、發育類型及演化過程的研究,從多角度探究七裏海外海岸沙丘群的演化機理和發育趨勢。Enclosing sandy - land merely without sand barriers ca n ' t lead to effective restoration of its vegetation. and in such sandy - land, the dominant plant species is still agriophyllum arenarium, and the coverage and the species richness are rather low
只封禁多年但沒有設置沙障的流動沙丘,其植物群落的恢復效果很差,優勢種依然為沙米,並且群落蓋度和物種豐富度很低。Biomass of agriophyllum squarrosum community and its function on mobile sand dune in horqin sandy land
科爾沁沙地流動沙丘沙米群落生物量特徵及其防風固沙作用The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象,採用傳統生態學的野外調查方法,從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境(土壤含水量、溫度)相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化,取得了如下研究結果: 1 、植被群落組成、多樣性及生活型:沙坡頭地區人工植被經過近50年的演變,從流動沙丘到固定沙地,沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變,從人工植被建立初期的少數幾種引種植物到現有30多種植物,隨著固定沙地時間的延長,植物種類日趨豐富,並且人工植被在15 25年、 40 50年兩個階段,物種的周轉速率最大,即群落結構變化最大。Quantity dynamics of hippophae rhamnoides population in different habitats standing in hilly loess regions
黃土丘陵區不同生境沙棘種群數量動態分析分享友人