本文關(guān)鍵詞：基于景觀指數(shù)的耕地細(xì)碎化與農(nóng)業(yè)經(jīng)濟(jì)水平的空間相關(guān)性分析，由筆耕文化傳播整理發(fā)布。

基于景觀指數(shù)的耕地細(xì)碎化與農(nóng)業(yè)經(jīng)濟(jì)水平的空間相關(guān)性分析

Spatial correlation analysis of land fragmentation and agriculture development based on landscape indexes

[1] [2] [3] [4] [5]

HUANG Si-qin, CHEN Ying, ZHANG Ren-zhi, WU Wei, WEI Chen （ College of Resources and Ertviromnental Sciences, Gansu Agricultural University, Lanzhou 730070, China）

甘肅農(nóng)業(yè)大學(xué)資源與環(huán)境學(xué)院,甘肅蘭州730070

文章摘要：為了探索耕地細(xì)碎化與農(nóng)業(yè)經(jīng)濟(jì)水平的空間相關(guān)關(guān)系,為耕地的適度化規(guī)模經(jīng)營(yíng)提供一定的參考依據(jù),該文基于2010年民樂(lè)縣土地利用現(xiàn)狀圖,獲得民樂(lè)縣耕地細(xì)碎化6個(gè)景觀指數(shù),運(yùn)用主成分分析降維得到能夠代表耕地細(xì)碎化的2個(gè)主成分指標(biāo),分析了耕地細(xì)碎化與農(nóng)業(yè)經(jīng)濟(jì)水平的空間相關(guān)性規(guī)律。結(jié)果表明：（1）第一主成分F1與斑塊數(shù)量、斑塊密度、斑塊平均面積、聚集度指數(shù)的載荷值大于80.2%,代表面積與分布指標(biāo);第二主成分F2與面積加權(quán)形狀因子,面積加權(quán)分維數(shù)的載荷值大于96.6%,代表形狀指數(shù)。（2）F1—農(nóng)戶人均純收入,F1—第一產(chǎn)業(yè)增加值的雙變量全局莫蘭指數(shù)分別為0.449、0.442,F1與農(nóng)業(yè)經(jīng)濟(jì)水平指標(biāo)在空間上呈正相關(guān)關(guān)系。F2—農(nóng)戶人均純收入,F2—第一產(chǎn)業(yè)增加值的雙變量全局莫蘭指數(shù)分別為0.467,0.5,F2與農(nóng)業(yè)經(jīng)濟(jì)水平指標(biāo)在空間上呈正相關(guān)關(guān)系。由此可見(jiàn),耕地細(xì)碎化與農(nóng)業(yè)經(jīng)濟(jì)水平在空間上呈正相關(guān)關(guān)系,空間耦合性很好。

Abstr：Based on the six land fragmentation indices from current land use map of Minle country in 2010 , the study aims to investigate the spatial correlation between land fragmentation and agriculture development ,and provide a reference for moderate scale of land management ,using two principle component indexes that could present land fragmen-tation according to the principle component analysis .The results showed that （1 ） the load value between the first princi-ple component F1 and the number of patch ,patch density ,average patch area and aggregation index were higher than 80 .2% ,which represented the area and distribution ;the load value between the second principle component F2 and the area weighting shape factor ,the area weighting patch fractal dimension were higher than 96 .6% ,which represented the shape index .The bivariate global Moran’ index of F1 -per capital net income of farmers and F1 -added value of the first industry were 0 .449 and 0 .442 ,respectively ,which showed a positive spatial correlation between F1 and agricultur-al development .（2） The bivariate global Moran’ index of F2 -per capital net income of farmers and F2 -added value of the first industry were 0 .467 and 0 .5 ,respectively ,showing a positive spatial correlation between F2 and agricultural development .Therefore ,there was a positive spatial correlation between land fragmentation and agricultural development , and they matched well in terms of spatial coupling .

文章關(guān)鍵詞：

Keyword：:land fragmentation spatial autocorrelation landscape index agricultural development

課題項(xiàng)目：國(guó)家自然科學(xué)基金（71263003）; 甘肅農(nóng)業(yè)大學(xué)青年導(dǎo)師基金（GAU-QNDS-201201）

  本文關(guān)鍵詞：基于景觀指數(shù)的耕地細(xì)碎化與農(nóng)業(yè)經(jīng)濟(jì)水平的空間相關(guān)性分析，由筆耕文化傳播整理發(fā)布。