watershed 中文意思是什麼

watershed 解釋
〈英國〉分水嶺;〈口語〉流域。

  1. 6. the algorithms of morphological operators and label watershed segmentation based on the mathematical morphology were put forward to resolve the problem of the light occluding of dibbling crop leaves

    針對玉米等點播作物田間場景中植物葉片交疊問題,研究基於數學形態學的形態運算元分割演算法和標記分水嶺分割演算法。
  2. A binary tree - based and dyadic indicated codification method is proposed in the digital watershed model ( dwm )

    摘要在數字流域模型中提出了一種基於二叉樹理論,並以二元形式表示的河網編碼方法。
  3. The dissertatio n constructs the index system, introduces the coefficients of development, coordination, fairness, and the coefficient of sd, which is composed by the former three and can reflects the sd overall strength of watershed, brings forward the quantative criteria of in order that the research of wrcc is based on the good watershed ecology and environment, the dissertation, according to the ecological appropriate theory, builds the logarithm normal distribution model about the relation between the growth of natural vegetation and the depth of groundwater ; based on this relation model, proposes a quantitative method of ecological water requirement ( ewr ) of natural vegetation in arid area, which utilizes the results of rs technique and the spot testing data of vegetative physiology demand

    針對流域特點建立了基於水資源的流域可持續發展評價指標體系,引入發展系數、協調系數、公平系數,以及由其構成的衡量水資源支撐社會可持續發展綜合水平與能力的可持續發展系數,提出了可持續發展的定量判別方法。為保證在良好生態的前提下進行水資源承載能力研究,論文根據生態適宜性理論,建立了乾旱區典型天然植物生長與主要環境因子的偏態單峰對數正態分佈模型。基於此關系模型,利用遙感技術成果以及植物生理需水的現場實驗數據,提出了乾旱區天然植被生態需水量計算方法。
  4. The flumes are used extensively to measure watershed turnoff.

    水槽廣泛用於測量集水區的經流流量。
  5. In the watershed, woodland, infield and garden plot respectively accounted for 43. 17 %, 23. 39 %, 13. 31 % and appeared obvious vertical differentiation, that was, woodland was mainly distributed on the slopes of > 25 over 800m a. s. 1 and garden plot was mainly distributed on the slope of 0 - 15 and 15 - 25 below 800m a. s. 1

    小流域林地、耕地、園地分別占土地總面積的43 . 17 、 23 . 39和13 . 31 ,且呈垂直分異性,林地集中在海拔高程800m以上的斜坡和陡坡,園地成片分佈在海拔高程500m以上的緩坡和陡坡。
  6. Mesh - tech applied in complicated geomorphology simulation of digital watershed system

    數字流域復雜地形模擬中的網格技術
  7. The ecosystem service functions of gansu is analyzed from six facts, such as grassplot ecosystem, forest ecosystem, watershed ecosystem, farmland ecosystem, desertification ecosystem and city ecosystem. this thesis simulates a latent ecosystem using vegetation type map to explain preferably how landscape pattern impacts the service function of ecosystem. the unit price of every service function is known by annual average value schedule of global ecosystem service function

    為了更好地說明景觀格局變化對生態系統服務功能的影響,通過植被類型圖模擬了潛在生態系統,根據全球生態系統服務功能的年平均價值一覽表查得各服務功能單價值,將其服務功能價值進行計算並與現實生態系統服務功能價值進行比較得出:由於現實生態系統人為的干擾作用,使得生態系統服務功能價值降低了1022 . 85 10 ~ 6美元。
  8. You will drive past the great divide watershed of the american continent to arrive at mammoth hot springs to view the multi - colored lava flow from extinct volcanoes, examine fossilized trees, and catch the glimmer of beautiful lakes in the secluded woods

    穿越美國大陸的分水嶺,到達公園最北的mammoth hot springs ,五顏六色的梯田,溫泉及滾燙的熔巖,石化的古木,碳化的火山口,林間的小湖,泛上裊裊的輕煙,宛如神話世界。
  9. In typical watershed, quxi watershed, the result of external forcing, submerge and migrant, is the resource change of slope cultivated lands, economical forest, vegetation, water, habitant etc. of the ecosystem, and the changes of demand for food supplies, energy resource and education

    移民區典型小流域? ?曲溪小流域,受淹沒、移民2個驅動力的作用,耕地、經濟林、植被、水、棲息地等資源發生了顯著變化,系統的糧食、能源、教育需求也隨之而變,在內在反饋機制的作用下,導致系統輸出為水土流失加劇、生物多樣性受到破壞、土地退化嚴重等。
  10. The way of land and water resources development and utilization in headwaters relates to the whole watershed sustainable development directly

    摘要水源涵養區水土資源開發利用方式直接關繫到整個流域是否可持續發展。
  11. Forest ecosystem ; hydrological system ; global change ; guandaushi watershed ; instantaneous unit hydrograph

    森林生態系、水文系統、全球變遷、關刀溪集水區、瞬時單位歷線
  12. This will prevent firms from targeting children by using cartoon characters and celebrities such as gary lineker, david beckham and britney spears. jane landon, deputy chief executive of the nhf, said : " the watershed for allowing the advertising of foods high in fat, salt and sugar should be 9pm.

    食品健康組織的代理人理查德沃爾特說, "相關統計顯示,在兒童觀看期間播放的商品廣告中有70是推銷食品的,而垃圾食品又佔到這些食品廣告的80到100 " 。
  13. In view of the hydrologic and meteorologic characters of the inland alpine region in the north - west china, watershed is dispersed by grids

    摘要針對西北內陸高寒山區的水文、氣象特點,以網格為最小單元將流域離散。
  14. The shaluli mountain chain constitutes a natural watershed between the jinsha river

    沙魯里山系是金沙江和雅礱江德天然分水嶺。
  15. Half - hourly measurements of co 2, water vapor, and energy exchange using the eddy covariance technique from walker branch watershed, tennessee, 1995 - 1998, http : cdiac. esd. ornl. gov ftp ameriflux data us - sites walker - branch

    對合成數據集和真實數據集的全面測試表明,本文提出的卸載策略的性能均好於現有其它方法。
  16. The watershed ' s worst problem is nutrient pollution, which is caused by the overabundance of the nutrients, nitrogen and phosphorus

    分水嶺面臨更嚴重的問題,來自營養物的污染,這些營養物污染源自營養物質、氮和磷的過量排放。
  17. Within the scenic beauty of beautiful scenery and lush vegetation, a clearance from the mountain watershed qingxi from the caves before flowing north cliff towering cliffs, rock dives ; flowing water trough, the ghost suddenly so far

    該景區內景色秀美,林木蔥郁,一條源於關山分水嶺的清溪從洞窟前流過,北崖峭壁高聳,危石凌空;谷底流水淙淙,幽冥渺遠。
  18. Successional dynamics of pinus massoniana forest in lijiang river watershed, guilin

    桂林灕江流域馬尾松林演替動態
  19. 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 % 。
  20. An improved watershed transform was used to get waterline for every bubble

    實驗結果表明,與現有的演算法相比,該演算法能夠有效地分割開前背景和黏連氣泡。
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