watershed area 中文意思是什麼

watershed area 解釋
分水界域
  • watershed : 〈英國〉分水嶺；〈口語〉流域。
  • area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
  1. 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。
  2. Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task

    文摘:本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12
  3. The restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task

    本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12
  4. In the area of watershed between the yangtze river and the huaihe river, there are a series of ecological environmental issues, such as fragile forest ecosystem, frequent drought damage, lake of water resources, serious soil and water loss and contamination by chemical fertilizer, pesticide and plastic membrane

    摘要分析了江淮分水嶺地區存在的森林生態系統脆弱，易旱多災，水資源短缺，土壤貧瘠，礦山開采過度，水土流水嚴重，化肥、農藥、農膜等農業化學品污染嚴重，農村生態環境退化等生態環境問題。
  5. Study on eco - environmental comprehensive harnessing exemplary area in erlongshan reservoir upriver mini watershed

    二龍山水庫上游小流域生態環境綜合治理示範區研究
  6. Abstract : according to the base flow separation results from hydrographs in many watershed, the best regression equation expressing the relationship between annual precipitation infiltration coefficient and the weight of different strata area to total area of the watershed is established. the equation can be used to calculate the precipitation infiltration recharge for different ground water basins in which the strata distribution and the precipitation are given. the precipitation recharge is equivalent to the ground water recharge in some mountainous area where the exploitation of ground water resources are far from being sufficient

    文摘:降水入滲補給系數與地層相關分析的目的，是為推求山丘區降水入滲補給量.魯中山丘區是由各種不同地層出露組成的山丘區域.在多個水文流域基流分割基礎上，建立流域年均降水入滲補給系數與各種地層出露面積占流域總面積權重間的最佳回歸方程，利用該回歸方程和地層分佈及降水量推算不同地下水流域的降水入滲補給量.在地下水開發利用不高的山丘區，降水入滲補給量即為地下水補給量
  7. Guan zhong zone is a water resource shortage area. beside of the measures of water saving, constructing water works, and inter - watershed water dispatching, functions of existing water works should be noticed sufficiently to connect and dispatch various water works as a whole, so as to relax or to solve conflict between water resource supply and demand and to make a sufficient and effective use of water resource

    關中地區基本屬于資源性缺水地區，要緩解或解決關中地區的水資源供需矛盾，除採取節水、興建蓄水工程以及跨流域調水工程等措施外，首先應充分發揮已成水利設施的作用，實現多種水源工程聯合運用、統一調配，使水資源得到充分、有效的利用。
  8. Sixty percent of the watershed area is located in anhui province, china

    壩址以上流域面積10442km ~ 2 ，其中60的流域面積在安徽省。
  9. And sand land is 41. 47 % of the whole watershed, which mainly distributes in the middle of the study area

    其中，沙夾泥田占流域面積的41 . 47 ，主要分佈在流域的中部。
  10. Sustainable development, which pursue long - time economic increase and quality advancement, is to satisfy both the needs of the present age and that of the future. shaowu, a county in mountainous area of fujian, plays a major role in the sustainable development in minjiang watershed. the thesis based on the theory of district sustainable development put forward the problems, pontentia and advantage which shaowu is faced with. the pattern of shaowu sustainable development and approach to implement it is also discussed. also, the thesis sets forth the important meaning of policy selection to the sustainable development and bring forward the adaptive policy of the sustainable development in shaowu

    縣域可持續發展是指在一定時空尺度上，以長期的經濟增長及質量提高為目標，從而既滿足當代縣域發展的需要，又滿足未來縣域的發展需求。邵武是福建省的一個山區縣級市，邵武的可持續發展對閩江流域的經濟可持續發展起著重要作用。本文建立在區域可持續發展的理論基礎之上，並對區域可持續發展理論進行概括，通過對邵武資源環境和社會經濟基礎系統的分析，提出邵武可持續發展面臨的問題和所具有的潛力和優勢，充分論述邵武實現可持續發展的模式內容和實施途徑。
  11. By integrating gis, social and economic statistical and field investigating data, taking wudinghe river watershed as the case study area, we discussed the driving mechanisms for the watershed land use change and the relationship between land use spatial distribution pattern and soil erosion at different scales. the results as follows : 1

    本文以無定河流域為典型研究地區，藉助地理信息系統（ gis ）技術，結合社會經濟統計資料和實地調查的數據，探討無定河流域土地利用變化的驅動機制和流域內不同尺度土地利用類型空間分佈格局與水土流失的關系，初步結論如下： 1
  12. Based on investigation of natural forest vegetation in chaoguanxigou watershed of rocky mountain area of north of china, the composition of species, structure of dbh of trees and species diversity of trees and shrubs in the course of forest succession are researched

    摘要基於華北土石山區潮關西溝流域天然森林植被調查的基礎上，對森林植被群落演替中群落樹種組成、胸徑結構和生物多樣性變化進行了研究。
  13. The objective of this research is to test the rcc from ] st to 6th order streams of changjiang river watershed in southern mountain area of anhui province, to explore the function and structure of macroinvertebrate community succession rule of the river. the changjiang river water quality asse ssment is carry on by comparison of the community characters of the point - pollution or non - point pollution sites to the hypothesized rcc, the macroinvertebrate community structure indices and bi index were used in the assessment

    本文對閶江河底棲動物群落結構和功能進行了系統研究，運用河流連續性理論對該河一至六級支流各取食功能團比例的演替規律及毛翅目成蟲的群落結構進行了比較分析，並通過計算底棲動物群落結構指數和bi指數，對該河進行了水質評價。
  14. Forest hydrology benefit of duanfangxi small watershed in three gorges reservoir area

    三峽庫區端坊溪小流域的森林水文效益
  15. Based on existed achievements of the continental river of arid area, the paper system analysis hydro - eco characteristics, hydro - eco changes and watershed changes. a case in tarim river, the paper study hydro - eco characteristics, river evolution, evaluated eco - environment quality, explore ecology water demand, study the rational utilization of water resources in tarim river watershed. the paper is composed of nine chapters, chapter 1 include research background, main research contents, research methods and research, meaning

    本論文在總結乾旱地區內陸河研究已有成果的基礎上，系統分析了乾旱地區內陸河的水文生態特徵、水文生態變化以及流域生態環境變化的基礎上，以我國最大的內陸河?塔里木河為例，初步研究了塔里木河的水文生態特徵、塔里木河的演變及其流域生態環境變化，探討了塔里木河流域的生態需水量，進行了塔里木河流域生態環境質量評價，研究了塔里木河流域水資源的合理開發利用。
  16. Evaluation and analysis of sustainable development of puwa small watershed comprehensive management in beijing mountainous area

    北京山區蒲窪小流域綜合治理可持續發展評價與分析
  17. To study the effects of preferential flow on infiltrated flow and surface runoff in the granite area of the three gorges, yangtze river, china, a soil profile that is not seriously disturbed by human activities was selected in the quxi watershed of the area as a field experimental site

    摘要為研究長江三峽花崗巖地區優先流對滲流和地表徑流的影響，以長江三峽地區曲溪小流域作為試驗用地，選擇適當的土壤剖面作為觀測剖面。
  18. The study area is located in wangdonggou, a small watershed in changwu county, shaanxi province. with the principles of combination of qualitative and quantitative analysis, macroscopic and microscopic analysis, the assessment indexes of soil erosion are selected through a series processes such as field investigation, soil sampling, physical and chemical properties analysis of soil, analysis of relations between the influencing indexes and soil erosion, statistics method, and so on. every index is divided into five grades according to the specific criterion, and its weight is drawn by ahp method

    本文以陜西省長武縣王東溝小流域為研究區，在堅持定性分析與定量分析相結合、宏觀與微觀相結合的原則下，通過實地野外調查和採集樣品，土壤樣品的理化分析，土壤侵蝕影響因素的分析，利用數理統計分析方法，篩選出了王東溝流域土壤侵蝕定量評價指標；並對這些指標進行土壤侵蝕評價等級的劃分及權重的確定，從而建立了評價指標體系。
  19. Chapter 4, the paper analysis hydro - eco changes on the continental river of arid area how to affect lake, groundwater, vegetation, animal, partly climate, etc. chapter 5, the author study hydro - eco evolution and watershed eco - environment changes of tarim river, analysis the reason of hydro - eco changes about tarim river according to geographic characteristics and hydrology characteristics of tarim river

    第四章分析了中國乾旱地區內陸河水文生態變化對湖泊的影響、對地下水的影響、對植被的影響、對動物的影響、對局部小氣候的影響。第五章根據塔里木河及其流域地理特徵、塔里木河的水文特徵，研究了塔里木河的水文生態演變以及流域生態環境變化，分析了塔里木河水文生態變化的原因。
  20. Soil erosion and nutrient losses in jiangjiatang watershed in lanxi city in zhejiang province during exploitation was studied from 1993 - 2000 using adoptive research methods such as runoff plot, catchment area, and rare earth element tracer ( eu ), and the soil fertility index appraisal. the major conclusions are as follow : 1. the principle of water and soil losses together with nutrients and the forms in which they were lost were studied under different fanning systems in runoff plot

    本研究選擇浙江省中部金衢盆地邊緣蘭溪市水土保持監督站蔣家塘小流域為研究試驗點，以協作單位蘭溪市水土保持監督站小流域開發試驗區為基礎，採用坡面徑流小區法、單源匯水試驗區出口實測法、穩定性核素- eu土芯示蹤法研究了2000年坡耕地不同農作措施水土流失規律及養分流失規律和小流域綜合開發過程中水土流失規律及養分流失規律，並對小流域侵蝕土壤的肥力現狀進行評價。
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