近11a克里雅河綠洲生態(tài)位演變態(tài)勢及發(fā)展預(yù)測評價
發(fā)布時間:2018-10-31 16:55
【摘要】:以新疆克里雅河綠洲為研究靶區(qū),從社會、經(jīng)濟(jì)、自然復(fù)合生態(tài)系統(tǒng)三方面構(gòu)建指標(biāo)體系,采用全排列多邊形綜合圖示指標(biāo)法對克里雅河綠洲2003-2013年的復(fù)合生態(tài)系統(tǒng)生態(tài)位進(jìn)行了量化評價。結(jié)果表明:1)2003-2013年克里雅河綠洲三個子系統(tǒng)生態(tài)位的高低排序由2003年的資源生態(tài)位經(jīng)濟(jì)生態(tài)位社會生態(tài)位演變?yōu)?013年的經(jīng)濟(jì)生態(tài)位社會生態(tài)位資源生態(tài)位;2)克里雅河綠洲經(jīng)濟(jì)生態(tài)位與資源生態(tài)位總體趨勢呈負(fù)相關(guān),經(jīng)濟(jì)生態(tài)位和社會生態(tài)位基本呈現(xiàn)正相關(guān);3)2003-2013年克里雅河綠洲生態(tài)位變化揭示了克里雅河綠洲近11a來綜合生態(tài)位和資源、經(jīng)濟(jì)、社會各子系統(tǒng)生態(tài)位的發(fā)展變化;4)運用BP神經(jīng)網(wǎng)絡(luò)模型預(yù)測2014-2018年該綠洲的生態(tài)位綜合指數(shù)預(yù)測值分別為:0.6964,0.7680,0.8312,0.8619,0.8765。
[Abstract]:Taking the Keya River oasis in Xinjiang as the research target, the index system is constructed from three aspects of social, economic and natural complex ecosystem. The ecological niche of the complex ecosystem of the Creya Oasis from 2003 to 2013 was evaluated quantitatively by means of the comprehensive mapping index method of all permutation polygons. The results are as follows: 1) from 2003 to 2013, the ranking of the three subsystems' niche in the Kryya Oasis changed from the resource niche to the social niche in 2003 to the economic niche and social niche in 2013; 2) there is a negative correlation between economic niche and resource niche in Kryya oasis, and there is a positive correlation between economic niche and social niche. 3) from 2003 to 2013, the change of ecological niche in Kryya oasis revealed the development and change of ecological niche of integrated niche and resources, economy and social subsystems in the past 11 years. 4) using the BP neural network model to predict the ecological niche index of the oasis from 2014-2018 is 0.69640.7680n0.83120.8619 / 0.8765.
【作者單位】: 新疆大學(xué)資源與環(huán)境科學(xué)學(xué)院;綠洲生態(tài)教育部重點實驗室;
【基金】:國家自然科學(xué)基金聯(lián)合基金(NSFC-新疆聯(lián)合基金)重點項目(U1138303)資助
【分類號】:X826
本文編號:2302950
[Abstract]:Taking the Keya River oasis in Xinjiang as the research target, the index system is constructed from three aspects of social, economic and natural complex ecosystem. The ecological niche of the complex ecosystem of the Creya Oasis from 2003 to 2013 was evaluated quantitatively by means of the comprehensive mapping index method of all permutation polygons. The results are as follows: 1) from 2003 to 2013, the ranking of the three subsystems' niche in the Kryya Oasis changed from the resource niche to the social niche in 2003 to the economic niche and social niche in 2013; 2) there is a negative correlation between economic niche and resource niche in Kryya oasis, and there is a positive correlation between economic niche and social niche. 3) from 2003 to 2013, the change of ecological niche in Kryya oasis revealed the development and change of ecological niche of integrated niche and resources, economy and social subsystems in the past 11 years. 4) using the BP neural network model to predict the ecological niche index of the oasis from 2014-2018 is 0.69640.7680n0.83120.8619 / 0.8765.
【作者單位】: 新疆大學(xué)資源與環(huán)境科學(xué)學(xué)院;綠洲生態(tài)教育部重點實驗室;
【基金】:國家自然科學(xué)基金聯(lián)合基金(NSFC-新疆聯(lián)合基金)重點項目(U1138303)資助
【分類號】:X826
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