基于農(nóng)戶視角的耕地細(xì)碎化程度評(píng)價(jià)——以湖北
發(fā)布時(shí)間:2017-12-31 20:32
本文關(guān)鍵詞:基于農(nóng)戶視角的耕地細(xì)碎化程度評(píng)價(jià)——以湖北省“江夏區(qū)—咸安區(qū)—通山縣”為例 出處:《地理科學(xué)進(jìn)展》2016年09期 論文類型:期刊論文
更多相關(guān)文章: 耕地細(xì)碎化 農(nóng)戶 評(píng)價(jià)指標(biāo) TOPSIS法 湖北省
【摘要】:農(nóng)戶是耕地最主要的經(jīng)營主體,基于農(nóng)戶視角構(gòu)建耕地細(xì)碎化程度評(píng)價(jià)指標(biāo)體系更為合理。本文選取湖北省"江夏區(qū)—咸安區(qū)—通山縣"作為研究區(qū)域,采用改進(jìn)的TOPSIS法,利用農(nóng)戶問卷調(diào)查數(shù)據(jù),對(duì)耕地細(xì)碎化程度評(píng)價(jià)進(jìn)行了實(shí)證研究。結(jié)果表明:(1)耕地細(xì)碎化程度衡量指標(biāo)的選取應(yīng)基于耕地細(xì)碎化的屬性特征,從農(nóng)戶微觀視角,選取地塊平均面積、地塊數(shù)量、地塊間的平均距離3個(gè)指標(biāo),衡量某一區(qū)域的耕地細(xì)碎化程度;(2)耕地細(xì)碎化在崗地平原地區(qū)與低山丘陵地區(qū)間存在顯著差異,崗地平原地區(qū)的耕地細(xì)碎化程度低于低山丘陵地區(qū);(3)研究區(qū)域地形地貌呈現(xiàn)出"北部崗地平原—南部低山丘陵"的分布特征,耕地細(xì)碎化的綜合程度基本上呈現(xiàn)出"北部低—南部高"的分布規(guī)律;(4)在不同經(jīng)濟(jì)發(fā)展水平地區(qū)耕地細(xì)碎化存在顯著差異,在崗地平原地區(qū),經(jīng)濟(jì)發(fā)展水平越高的地區(qū),耕地細(xì)碎化程度越高;而在低山丘陵地區(qū),經(jīng)濟(jì)發(fā)展水平越高的地區(qū),耕地細(xì)碎化程度越低。
[Abstract]:The farmer is the main body of cultivated land management, farmers from the perspective of the construction of the evaluation index system of cultivated land fragmentation degree is more reasonable. This paper based on Hubei Province, Jiangxia District, Xian'an District, Tongshan County as the study area, using the improved TOPSIS method, using household survey data, to evaluate the degree of land fragmentation empirically study. The results showed that: (1) select the degree of land fragmentation index should be based on the characteristics of land fragmentation, from the microcosmic perspective, the average area, number of plots, 3 indicators of the average distance between plots, to measure the degree of land fragmentation in a region; (2) land fragmentation exists significant differences in the hillock plain area and hilly area, land fragmentation on the plains below the hilly area; (3) the study area topography showing "southern North hillock plain Low hill "distribution characteristics, comprehensive degree of land fragmentation is basically showing a" North South High low "distribution; (4) in the arable land crushing regions with different economic development level of the existence of significant differences, in the hillock plain area, the higher the level of economic development of the region, the higher land fragmentation the degree; while in low mountain and hilly area, the higher the level of economic development of the area, land fragmentation degree is low.
【作者單位】: 華中農(nóng)業(yè)大學(xué)公共管理學(xué)院;
【基金】:中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(2662015PY127)~~
【分類號(hào)】:F323.211
【正文快照】: 1引言耕地細(xì)碎化現(xiàn)象由來已久,是與土地規(guī)模經(jīng)營相對(duì)應(yīng)的土地利用格局,也是許多國家農(nóng)業(yè)發(fā)展中存在的主要問題之一(孫雁,劉友兆,2010)。隨著城鎮(zhèn)化進(jìn)程的加快和農(nóng)業(yè)現(xiàn)代化的發(fā)展,耕地細(xì)碎化現(xiàn)象及其影響引起了學(xué)術(shù)界的廣泛關(guān)注。一些研究發(fā)現(xiàn),耕地細(xì)碎化對(duì)農(nóng)業(yè)生產(chǎn)有負(fù)面影響,,
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