重力驅指數 的英文怎麼說
中文拼音 [zhònglìqūzhǐshǔ]
重力驅指數
英文
segregation drive index- 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
- 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
- 驅 : 動詞1. （趕） drive （a horse, car, etc. ） 2. （快跑） run quickly 3. （趕走） expel; disperse
- 指 : 指構詞成分。
- 數 : 數副詞（屢次） frequently; repeatedly
- 重力 : [力學] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational...
- 指數 : 1. [經] （比數） index number; index 2. [數學] exponent
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On the basis of drawing the domestic and international achievement in research of luc and human driving forces extensively and referring to different economic development levels in chongqing, this study chooses beibei, wanzhou, youyang as the sample areas, which respectively represent for relatively developed district, less developed district, undeveloped district. this paper takes the data and relevant materials of the period from 1985 to 2000 as foundation, takes the on - site inspection as ground, takes sustainable land resource use theory and systematic dynamics theory as guide, takes many kinds of qualitative and quantitative approaches as methods
本研究在廣泛吸取國內外相關土地利用變化及其人類驅動力研究成果的基礎上，結合重慶不同區域經濟發展水平情況，選取了經濟較發達的北碚區、欠發達的萬州區、落後的酉陽縣為研究樣點，以1985年2000年時段的土地利用數據及相關資料為研究基礎，實地調查為依據；以土地資源可持續利用理論、系統動力學理論為指導，採用定性與定量相結合的多種研究方法進行研究。There is a strong relationship between the vegetation cover and stability of oasis ecosystem which is the key location of mankind production and existence in arid and semi - arid land. the change of vegetation cover in arid and semi - arid has very important influence on the oasis eco - system, as it is very sensitive to the environment changes to oasis direction or to desert direction that the fluctuating index of vegetation cover. the vegetation cover rate change great effect on realizing the characteristic
植被覆蓋度對于乾旱區人類生存和生產核心場所的綠洲穩定有著直接的關系，在乾旱區覆蓋度的變化對本已脆弱的綠洲生態系統有著重要的影響，是向綠洲化還是向荒漠化的方向發展，十分敏感於綠洲植被覆蓋度的指數，了解各類植被覆蓋度的特徵及演化規律，對認識乾旱區生態環境的現狀及發展趨勢，辨識引起環境變化的驅動力，有著重要的意義。
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