沙地植被 的英文怎麼說

中文拼音 [shādezhíbèi]
沙地植被 英文
psammophytic vegetation
  • 沙 : 沙動詞[方言] （搖動以清除雜物） shake
  • 植 : Ⅰ動詞1. （栽種） plant; grow; cultivate 2. （樹立） establish; set up Ⅱ名詞（姓氏） a surname
  • 被 : Ⅰ名詞1 （被子） quilt 2 （姓氏） a surname Ⅱ動詞[書面語]1 （復蓋） cover; spread 2 （遭受） suffe...
  • 沙地 : sand; tibba; desert沙地帆車 sandsailer; 沙地鞋 sandshoe
  • 植被 : vegetation; vegetative cover植被層 vegetable layer; 植被帶 [植物學] zone of vegetation; 植被類型 vegetation form
  1. The study investigated aboveground growths of caragana korshinskii and artemisia ordosica planted in four modes, revealing that in different planting modes their densities, heights and canopy width and biomasses remained unchanged or tended to decrease slightly ; the young shoots of a. ordosica annually grew in a s - shaped cure and the young shoots of c. korshinskii grew fast in spring and grew slowly or cease to grow from july on ; the biomasses and leaf area indexes of c. korshinskii and a. ordosica annually varied in a double peak curve and there were 8 annual plants that invaded in the four planting modes and formed higher coverage ; the quadrat with only a. ordoska appeared to have obviously lower coverage and biomass that the other three quadrats

    摘要對騰格里沙漠東南緣2種人工植被檸條和油篙在4種配置方式下地上部分的生長動態進行了研究，結果表明：不同配置方式下它們的密度、高度、冠幅和生物量基本不變或略微呈下降趨勢；油篙新梢的年生長動態呈s型曲線，檸條新梢春季生長速度較快， 7月份以後生長速度緩慢或基本停止生長；檸條、油篙地上生物量和葉面積指數的年變化均表現為雙峰型， 4種配置方式下共有8種1年生植物人侵，並具有較高的植被蓋度；同其它3個樣地相比，純油篙樣地1年生植物的密度、蓋度和生物量明顯偏低。
  2. The species were separately caragana korshinskii hydysarum scoparim artemisia ordosica in shrubs layer, eragrostis poaeoides bassia dasyphylla in herbs layer, bryum argenteum barbula ditrichodies in microbiotic crusts layer. and the dominant species of them were artemisia ordosica eragrostis poaeoides bryum argenteum respectively. due to the different time and the topographical varieties in the fixing - sand region, the horizontal structure of artificial vegetation manifested out the mosaic characteristics

    灌木片層的主要植物種是檸條（ caraganakorshinskii ） 、花棒（ hydysarumscoparim ） 、油蒿（ artemisiaordosica ）等灌木植物，其中優勢種為油蒿；草本片層的主要植物種有小畫眉草（ eragrostispoaeoides ） 、霧冰藜（ bassiadasyphylla ）等，其中優勢種是小畫眉草；生物結皮由藻類和苔鮮類構成，其中，銀葉真鮮（ bryumargenteum夕為固沙植被區鮮類地被層優勢成分。
  3. The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north

    實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。
  4. The classified result show that the grass land of this region retrogressed badly in 2000 : the appreciable retrogression proportion of the grass land is 15 %, the moderate retrogression proportion is 15 % ; the serious retrogression proportion is 8 % ; the area of desert is 2755. 27km2 and the proportion is 19 %, which had increased about 88. 9 % in eight years

    植被覆蓋度分類結果顯示， 2000年該地區草地退化比較嚴重： 21草地輕度退化， 15的草地中度退化， 8的草地重度退化，土地沙化面積為2755 . 27km ~ 2 ，比1992年增加了88 . 9 。
  5. In this paper, on the basic theories foundation study of summary people of the past, aiming directly at whether the shelter forest can deposit the sand and how powerful it can. we select the oasis in ulan buh desert as the study plot, and study the function of the shelter forest reduce the " sand " and " dust ". we draw the following conclusion. first, in the fixed and semifixed sand lands, which grow the natural sand - binding plants, the coverage of plant in the fixed and semifixed sand land is 26. 4 % and 10. 3 %, respectively, the amount of sand drift decrease 93. 38 % and 81. 91 % comparing with the migratory sand land which have no plant coverage in the same wind speed and the range of 0 - 40cm above the ground

    本文以前人的研究為基礎針對「防護林體系是否有降解作用，有多大的降解作用」這一問題以烏蘭布和沙漠邊緣的防護林體系為研究對象，研究了防護林體系對「沙」 、 「塵」的降解作用，得出以下結論： （ 1 ）在距離地表0 - 40cm范圍內，同一風速下生長有天然固沙植物，植被蓋度分別為26 . 4 、 10 . 3的固定、半固定沙地上，地表起沙量分別比無植被生長的流動沙地降低了93 . 38 、 81 . 91 。
  6. 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。
  7. Most of the soil had been washed away or buried in drift after the removal of the trees ; only where the streamlet ran down from the kettle a thick bed of moss and some ferns and little creeping bushes were still green among the sand

    在樹木被搬走以後，大部分土壤不是被雨水沖走就是埋成了堆，只在那細泉從鍋中溢出后形成的細流邊上，有一塊厚密的苗床，上面長著些苔蘚羊植物和蔓延在地面上的小灌木叢，仍然在這沙地上搖曳著一片碧綠。
  8. This paper includes study to impression syrian desert ( the natural factors, the climatic factors, the pastoral cover, animal wealth the tenants. . ). and also study water resources management in it, and the followed techniques of rainwater harvest, conditions, and methods selection suitable method and administration

    這篇論文研究了敘利亞沙漠的多種要素（自然因素，氣候因素，植被，牲畜，居民… … ） ，以及該地區水資源管理方法鶴和關于雨水收集的技術、條件、方法選擇及管理等
  9. Deserts have expanded to overtake previously vegetated areas, accelerated in some cases by overgrazing of domesticated animals

    沙漠已經擴大，侵佔著先前的植被覆蓋地區，在某些地區，由於過度放牧沙漠化的速度正在加快。
  10. In different phases of development, vegetation systems in this region have changed from pioneer herbage species initially recovering in abandoned cropping lands ( bothriochloa ischemum, artenmisia giradii and stipa bungeana, artenmisia sacrorum, spodiopogen sibiricus and sophora flavecens, themeda japonica, and arundinella anomala ) to secondary shrubs ( hippophae rhamnoides, sophora viciifdia, and ostryopsis davidiana ), early forest community ( populus davidiana, betula platyphylla and platycladus orientalis with arbors or shrub assembling ), and finally liaotungesis community as the mature forest. in this study, soil profiles ( 0 - 5, 5 - 15, 15 - 25, 25 - 35, 35 - 50 cm soil layers ) were selected from typical vegetation systems representing for vegetation successions in the region

    該區北部目前還保存有空間上完整的植被正向演替系列，即棄耕地先鋒群落草本群落（白羊草bothriochloaischemum 、茭蒿artenmisiagiradii +長茅草stipabungeana 、鐵桿蒿artenmisiasacrorum 、大油芒spodiopogensibiricus +苦參sophoraflavecens 、黃菅草themedajaponica或野古草arundinellaanomala ）灌叢群落（沙棘hippophaerhamnoides 、狼牙刺sophoraviciifdia 、虎榛子ostryopsisdavidiana ）早期森林群落（喬灌群聚、山楊populusdavidiana 、白樺betulaplatyphylla 、側柏platycladusorientalis 、 ）遼東櫟群落（ quercusliaotungensis ） 。
  11. In the control, even light rain could bring soil and water losses. while for orchard and costarica henryi forest, runoff and sediment yield both reduced greatly. regarding to chinese fir and enclosing and tending forests with favorable vegetative coverage, minimum soil and water losses were produced even by the rainstorm

    裸露地（對照）小雨時也可能產生水土流失，而大雨以上降雨會產生嚴重水土流失；具有一定植被覆蓋且採取水土保持措施的果園和錐栗林的徑流量和泥沙量大幅度減少；而植被覆蓋良好的杉木林和封山育林地即使大雨以上降雨也僅產生極輕微的水土流失。
  12. These are the material bases for the desertization expanding that the earth ' s surface vegetation is sparsed, made - ups material is loosed, and sand source is abundant in mu us region

    毛烏素地區地表植被稀疏、組成物質鬆散、沙源豐富，為沙漠化擴展提供了物質基礎；而乾旱多風的氣候是沙漠化發展的重要因素之一。
  13. According to the configuration and ecotope of the earths surface, the coverage of vegetation, occupation ratio of bare sandy land and the soil texture were selected as evaluation indexes by using the field investigation data

    利用外業調查數據，依據地表形態和生態狀況的變化，確定了植被蓋度、裸沙地佔地百分比和土壤質地3項評價指標，並建立了基於遙感的科爾沁沙質荒漠化評價指標體系，其中裸沙地佔地百分比用混合像元分解的方法獲得。
  14. The industrialized manufacturing of this product plays an important role in grain crops drought - fight and abundant harvest ensuring in arid and semiarid region, drought - fight and yield increasing of fruits and vegetables, fresh keeping of flowers, municipal gardening, forest drought - fight, drought degeneration reduction of pasture ecology, and desert vegetation protection, etc

    該產品的產業化生產，對乾旱、半乾旱地區糧食作物抗旱保豐收、果樹蔬菜抗旱增產、鮮花花卉保鮮、城市園藝綠化、林樹抗旱、減少牧草生態因旱退化、沙漠植被保護等方面有著重要應用。
  15. If mechanical and biological sand barriers are established in such land, sand can be prevented from drifting effectively, so that with the stabilizing of sand much more plant species can settle down easily, and the plant species richness can increase dramatically

    強烈的風沙活動是流動沙地植物定居的限制因子。採取機械沙障和生物沙障的植被恢復重建措施，可以迅速固定流沙，促進植物的定居，提高植物物種豐富度。
  16. 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。
  17. Dynamics of species diversity of communities in restoration processes in horqin sandy land

    科爾沁沙地植被恢復系列上群落演替與物種多樣性的恢復動態
  18. The paper studied three aspects of extracelluar enzymes in sediments of the tidal flat wetland, namely 1 ) the distibution of five sorts of extracellular enzymes in sediments in the east end of chongming island along the elevation gradient or community succession series, the relationships between the activities of enzymes and the ecological factors, and functions of extracellular enzymes in the process of community succession ; 2 ) the effects of the heavy metal ions and edta on the activity of alkaline phosphatase in sediments of the east end of chongming island by adding and removing of heavy metal ions, discussing whether the activities of extracellular enzymes could be taken as the indicators for the environmental status ; 3 ) the variations of the activities of extracellular enzymes in sediments in the east end of hengsha island after the discarding clay

    本文以長江口典型濕地?崇明東灘為例，首次研究了沿高程梯度或沿植被演替系列沉積物中堿性磷酸酶等五種胞外酶活性的空間分佈規律，分析了胞外酶活性與環境因子的相互關系及其產生機制，討論了胞外酶活性在濕地植被演替中的作用。同時以崇明東灘沉積物為對象，運用重金屬離子的添加和去除等方法，研究了重金屬離子對沉積物中堿性磷酸酶活性的影響，利用胞外酶活性的變化探討了崇明東灘重金屬污染的狀況。此外，本文還研究了橫沙東灘吹泥試驗工程對沉積物環境因子和胞外酶活性的影響並進行了對比分析。
  19. Near - natural restoration of sand vegetation at the east edge of kubuqi desert

    庫布齊沙漠東緣沙地植被近自然恢復研究
  20. The reproductive strategy of plants in shapotou played an essential role for vegetation stability. high resistance to drought and long life span enableed hedysarum scoparium and caragana korshinski to adapt themselves to the harsh environments

    結果表明：在地處乾旱半乾旱的沙坡頭地區，通過機械固沙與植物固沙相結合的防風治沙模式，建立的雨育人工固沙區植被經過多年演替形成的人工?天然植被是穩定的。
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