鄭樂樂




摘 要:生態環境保護與建設是區域生態安全戰略實施的重要一環。結合甘肅省2012—2019年生態環境狀況,基于分布式處理系統更換(Distributed Processing System Replacement,DPSR)模型構建生態安全綜合評價指標體系,根據熵值法與逼近理想解TOPSIS理論對其生態環境狀況進行綜合分析研究。結果表明:甘肅省2012—2014年生態安全綜合得分有所下降,環境污染有所加重;2015—2019年生態安全綜合評價得分總體呈現上升趨勢;總體上生態安全等級由2012年的敏感等級逐漸上升到2019年較安全等級,生態環境建設成效顯著。
關鍵詞:生態環境;分布式處理系統更換模型;熵值法;逼近理想解TOPSIS;甘肅省
中圖分類號:X826 文獻標識碼:A 文章編號:1003-5168(2021)25-0133-04
Ecological Security Evaluation of Gansu Province Based on Entropy Weight-Approximate Ideal Solution TOPSIS Theory
ZHENG Lele
(School of Statistics, Lanzhou University of Finance and Economics, Lanzhou Gansu 730020)
Abstract: Ecological environmental protection and construction are an important part of the implementation of the regional ecological security strategy. Based on the 2012 to 2019 ecological environment status in Gansu Province, a comprehensive evaluation index system for ecological security is constructed based on the DPSR model, and the ecological environment status is comprehensively analyzed and studied based on the entropy method and the TOPSIS theory of approaching ideal solutions. The results show that: The comprehensive score of ecological safety in Gansu Province from 2012 to 2014 declined, and environmental pollution was serious; The comprehensive evaluation score of ecological safety from 2015 to 2019 showed an overall upward trend, and the overall ecological safety level gradually increased from the sensitivity level in 2012 to 2019 The annual safety level is relatively high. The ecological environment construction has achieved remarkable results.
Keywords: ecological environment;distributed processing system replacement model;entropy method;approximation to the ideal solution TOPSIS;Gansu Province
生態環境是影響人類生存與發展的水資源、土地資源、生物資源以及氣候資源數量與質量的總稱,是關系社會與經濟可持續發展的重要系統[1]。黨的十八大、十九大相繼提出“加快生態文明體制改革,建設美麗中國”的發展戰略,注重環境污染問題的合理解決[2]。甘肅省地處西北內陸,自然條件嚴酷,生態環境脆弱,是我國遭受沙漠化危害最嚴重的省份之一。研究其生態環境現狀,對生態環境極為脆弱的甘肅省而言尤為重要,對其做出客觀合理的生態評價,可為實現經濟社會與自然環境協調發展提供依據。
目前,國內外學者對生態環境安全狀況進行綜合評估時,在評價對象、指標體系的構建和評價方法的選擇上做了大量研究,將生態安全由定性研究逐漸轉向定量研究。例如,WANG等[3]基于生態環境各方面的綜合指數來綜合衡量區域生態環境質量。……