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ecological security early warning PSR model entropy method Y

發(fā)布時間:2016-07-13 02:09

  本文關(guān)鍵詞:黃河三角洲地區(qū)生態(tài)安全預(yù)警測度及時空格局,由筆耕文化傳播整理發(fā)布。


黃河三角洲地區(qū)生態(tài)安全預(yù)警測度及時空格局

The Measure of Ecological Security Early Warning and the Temporal and Spatial Pattern in Yellow River Delta

[1] [2] [3]

XU Cheng- long, CHENG Yu, REN Jian- lan ( College of Population Resource and Environment Sciences, Shandong Normal University, Jinan 250014, Shandong, China)

山東師范大學(xué)人口·資源與環(huán)境學(xué)院,中國山東濟(jì)南250014

文章摘要隨著黃三角地區(qū)的生態(tài)環(huán)境不斷惡化,生態(tài)問題日益成為政府、學(xué)者與公眾關(guān)注的焦點(diǎn)。以黃三角為例,采用PSR模型構(gòu)建黃三角生態(tài)安全預(yù)警指標(biāo)體系,,運(yùn)用熵值法對黃三角生態(tài)安全預(yù)警進(jìn)行分析,得到以下三個結(jié)論:①2005—2010年,黃三角地區(qū)的生態(tài)環(huán)境得到了逐步改善,2010年各縣市的生態(tài)安全預(yù)警值大于2005年的生態(tài)安全預(yù)警值;②2010年黃三角大部分地區(qū)的生態(tài)安全預(yù)警等級仍處在第Ⅲ等級,生態(tài)安全形勢不容樂觀。③黃三角東部地區(qū)的生態(tài)環(huán)境整體上要優(yōu)于中西部地區(qū)的生態(tài)環(huán)境,生態(tài)環(huán)境最差的區(qū)域集中在東營和濱州兩市。研究認(rèn)為,轉(zhuǎn)變經(jīng)濟(jì)發(fā)展模式、生態(tài)修復(fù)與補(bǔ)償、差別化區(qū)域空間管制等是改善黃三角生態(tài)環(huán)境的必要措施。

AbstrEcological security is important for human health, natural resources, and socio-economical development. With the aggravation of environmental pollution,ecological problem in Yellow River Delta area had become the focus of atten- tion. In this paper, as the Yellow River Delta for an example, the PSR model was used to construct the warning index sys- tem of Yellow River Delta. The paper carried on analysis to the Yellow River Delta ecological security early warning by entropy method. Three conclusions were as follows. Firstly, during the period of 2005 - 2010, the ecological environment of Yellow River Delta has been improved gradually,and the value of ecological security early warning value in 2010 was bigger than the one in 2005. Secondly, although ecological environment has been improved, the ecological security level in most areas of Yellow River Delta in 2010 was still in the third grade. Ecological security was not optimistic. Lastly, ec- ological environment in eastern area of Yellow River Delta was better than the one o.f the central and western area. The ar- eas of the worst ecological environment basically concentrated in Dongying city and Binzhou city. The transformation of economic development mode, ecological restoration and compensation, the difference of regional spatial control are the necessary measures to improve the ecological environment of Yellow River delta.

文章關(guān)鍵詞:

Keyword::ecological security early warning PSR model entropy method Yellow River Delta

課題項(xiàng)目:國家自然科學(xué)基金項(xiàng)目(41271553);教育部人文社會科學(xué)研究規(guī)劃基金項(xiàng)目(12YJA790199)

 

 


  本文關(guān)鍵詞:黃河三角洲地區(qū)生態(tài)安全預(yù)警測度及時空格局,由筆耕文化傳播整理發(fā)布。



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