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我國(guó)農(nóng)業(yè)生態(tài)效率時(shí)空格局差序化分析——基于DEA-ESDA模型

發(fā)布時(shí)間:2018-04-03 18:42

  本文選題:農(nóng)業(yè)生態(tài)效率 切入點(diǎn):DEA模型 出處:《江蘇農(nóng)業(yè)科學(xué)》2017年04期


【摘要】:農(nóng)業(yè)生態(tài)效率是衡量一個(gè)地區(qū)農(nóng)業(yè)生態(tài)化發(fā)展水平的重要定量化指標(biāo),是作為如何抵抗高危生態(tài)風(fēng)險(xiǎn)的決策方向之一。采用DEA數(shù)據(jù)包絡(luò)法對(duì)中國(guó)31個(gè)省、直轄市2005—2014年農(nóng)業(yè)生態(tài)效率比較分析,并利用ESDA對(duì)中國(guó)農(nóng)業(yè)生態(tài)效率進(jìn)行全局和局部自相關(guān)分析,結(jié)果表明,我國(guó)農(nóng)業(yè)生態(tài)效率南北差異明顯,保護(hù)發(fā)展區(qū)、適度發(fā)展區(qū)和優(yōu)勢(shì)發(fā)展區(qū)依次逐區(qū)下降,同時(shí)三大發(fā)展區(qū)內(nèi)農(nóng)業(yè)生態(tài)效率也由南向北遞減,分布具有差序化特征。2005—2014年全局自相關(guān)Moran鎦s I值均為正,表明我國(guó)省域之間農(nóng)業(yè)生態(tài)效率呈現(xiàn)正相關(guān)的空間集聚分布。其中,2005—2010年農(nóng)業(yè)生態(tài)效率空間集聚程度略有縮小,2010—2014年較快恢復(fù)并加強(qiáng)。區(qū)域生態(tài)效率異質(zhì)性主要表現(xiàn)為出現(xiàn)相對(duì)穩(wěn)定熱點(diǎn)和冷點(diǎn)的差序變化,熱點(diǎn)區(qū)主要集中在青藏、西南、華南和長(zhǎng)江中下游發(fā)展區(qū);冷點(diǎn)區(qū)主要集中在東北、黃淮海、西北及長(zhǎng)城沿線發(fā)展區(qū)。農(nóng)業(yè)生態(tài)效率空間差異與技術(shù)變動(dòng)、農(nóng)資消耗強(qiáng)度等所引起的農(nóng)業(yè)規(guī)模效益、技術(shù)效益變化密切相關(guān),基于空間探索性數(shù)據(jù)分析方法研究我國(guó)區(qū)域農(nóng)業(yè)生態(tài)效率空間的集聚性和異質(zhì)性,為制定提高區(qū)域農(nóng)業(yè)生態(tài)效率相關(guān)調(diào)控政策提供參考。
[Abstract]:Agricultural ecological efficiency is an important quantitative index to measure the development level of agricultural ecology in a region, and it is one of the decision-making directions on how to resist the high risk ecological risk.A comparative analysis of agricultural ecological efficiency in 31 provinces and municipalities of China from 2005 to 2014 was carried out by using DEA data envelopment method. The global and local autocorrelation analysis of agricultural ecological efficiency in China was carried out by using ESDA. The results showed that: 1.The agricultural ecological efficiency of our country is obviously different from north to south, and the agricultural ecological efficiency of the three major development areas is decreasing from south to north, while the protection development area, the moderate development area and the dominant development area will decrease one by one, and the agricultural ecological efficiency will decrease from south to north.The global autocorrelation Moran I values were all positive from 2005 to 2014, which indicated that the agglomeration distribution of agricultural ecological efficiency among provinces in China was positively correlated.From 2005 to 2010, the agglomeration degree of agricultural ecological efficiency decreased a little and recovered and strengthened rapidly from 2010 to 2014.The heterogeneity of regional ecological efficiency is mainly manifested by the relatively stable hot spots and the differential order changes of the cold spots, which are mainly concentrated in Qinghai-Tibet, Southwest, South China and the middle and lower reaches of the Yangtze River, while the cold spots are mainly concentrated in the northeast, the Huanghuai Sea, and the Huanghuai Sea.Northwest and the Great Wall along the development area.The spatial difference of agricultural ecological efficiency is closely related to the change of agricultural scale benefit and technical benefit caused by the change of technology, the intensity of consumption of agricultural material, etc.The spatial agglomeration and heterogeneity of regional agricultural ecological efficiency in China are studied based on spatial exploratory data analysis method, which provides a reference for formulating relevant regulation and control policies to improve regional agricultural ecological efficiency.
【作者單位】: 福建農(nóng)林大學(xué)作物科學(xué)學(xué)院;福建農(nóng)林大學(xué)經(jīng)濟(jì)學(xué)院;
【基金】:福建省科技廳博士后縱向課題(編號(hào):132300129)
【分類號(hào)】:F224;F323.22

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