本文選題：農(nóng)業(yè)可持續(xù)發(fā)展指數(shù) + 目標系統(tǒng)��； 參考：《生態(tài)學報》2017年11期

【摘要】：基于歐氏距離構建了農(nóng)業(yè)可持續(xù)發(fā)展評價理論體系,包括農(nóng)業(yè)可持續(xù)發(fā)展模型、評價函數(shù)、評價等級、目標系統(tǒng)、零系統(tǒng)與評價指標框架。選取寧夏吳忠市2000—2012年數(shù)據(jù)開展了實例驗證,可持續(xù)發(fā)展指數(shù)(ASDI)范圍是[0.65,0.70],呈現(xiàn)平緩上升趨勢,呈現(xiàn)中持續(xù)發(fā)展狀態(tài)。評價結果基本反映了農(nóng)業(yè)系統(tǒng)情況,表明基于歐氏距離構建農(nóng)業(yè)可持續(xù)發(fā)展評價方法是可行的。該方法的創(chuàng)新性與優(yōu)勢表現(xiàn)在:一是具有可靠的方法論;二是構建了農(nóng)業(yè)可持續(xù)發(fā)展模型,引入目標系統(tǒng)與零系統(tǒng)概念,建立了農(nóng)業(yè)可持續(xù)發(fā)展評價參照系,提升了評價的可控性;三是數(shù)學函數(shù)中隱含了指標權重,回避專家打分法引起的誤差或錯誤,也回避了由于指標增減中指標權重不得不重新賦值的專家打分法缺陷;四是可持續(xù)發(fā)展評價指數(shù)采用函數(shù)模型轉(zhuǎn)換,把歐氏距離轉(zhuǎn)換成百分數(shù)值一方面易理解,另一方面不同系統(tǒng)的指數(shù)值能夠進行相互比較。寧夏吳忠農(nóng)業(yè)可持續(xù)發(fā)展水平偏低的主要原因是氮肥施用量高、秸稈還田率低、復合肥或?qū)Ｓ梅时壤�、保護性農(nóng)作技術推廣不夠、土壤有機質(zhì)低以及農(nóng)村人均收入偏低等。
[Abstract]:Based on Euclidean distance, the evaluation theory system of agricultural sustainable development is constructed, including agricultural sustainable development model, evaluation function, evaluation grade, target system, zero system and evaluation index framework. The data of Wuzhong City in Ningxia from 2000 to 2012 are selected to carry out the example verification. The range of sustainable development index (ASDII) is [0.65-0.70], showing a gentle upward trend and a medium sustainable development state. The results show that it is feasible to construct the evaluation method of agricultural sustainable development based on Euclidean distance. The innovation and advantages of this method are as follows: first, it has reliable methodology; second, it constructs the agricultural sustainable development model, introduces the concepts of target system and zero system, and establishes the reference frame of agricultural sustainable development evaluation. Third, the index weight is implied in the mathematical function, the error or error caused by the expert scoring method is avoided, and the expert scoring method which has to reassign the index weight in the index increase or decrease is avoided. Fourth, the sustainable development evaluation index is transformed into a function model, and the Euclidean distance is converted into a percentage value. On the one hand, the Euclidean distance is easy to understand, on the other hand, the index values of different systems can be compared with each other. The main reasons for the low level of agricultural sustainable development of Wu Zhong in Ningxia were the high application of nitrogen fertilizer, the low rate of returning straw to the field, the low proportion of compound fertilizer or special fertilizer, the insufficient popularization of protective farming techniques, the low soil organic matter and the low per capita income in rural areas.
【作者單位】： 中國農(nóng)業(yè)科學院農(nóng)業(yè)環(huán)境與可持續(xù)發(fā)展研究所;農(nóng)業(yè)部農(nóng)業(yè)環(huán)境與氣候變化重點開放實驗室;
【基金】：農(nóng)業(yè)部行業(yè)專項科研經(jīng)費
【分類號】：F327
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本文編號：1842820