国土资源科技管理
國土資源科技管理
국토자원과기관리
SCIENTIFIC AND TECHNOLOGICAL MANAGEMENT OF LAND AND RESOURCES
2015年
2期
9-15
,共7页
乔佳%宁小李%邓红蒂%杨冀红%左玉强
喬佳%寧小李%鄧紅蒂%楊冀紅%左玉彊
교가%저소리%산홍체%양기홍%좌옥강
城市郊区%耕地细碎化%空间自相关性%莫兰指数
城市郊區%耕地細碎化%空間自相關性%莫蘭指數
성시교구%경지세쇄화%공간자상관성%막란지수
sub-urban%cultivated land fragmentation%spatial correlation%Moran's I
为研究城市郊区耕地细碎化程度及其空间相关关系,以保定市新市区为例,选取斑块面积指数、斑块形状指数、斑块分散指数3个指标综合反映耕地细碎化程度,并通过全局和局部莫兰指数分析其空间相关性。结果显示:①斑块面积指数空间分异与形状指数类似,总体特征是西部高于东部,斑块分散指数的分布则与之相反;②新市区3个耕地细碎化指数的空间聚集程度顺序为:分散指数>面积指数>形状指数;③斑块面积指数和斑块形状指数的 H-H型分布规律相似,主要集中在市区西部,而斑块分散指数 H -H型则集中分布于市区周围。结果表明:掌握新市区耕地细碎化空间格局及其空间相关关系可以为耕地集约化利用提供决策支持。
為研究城市郊區耕地細碎化程度及其空間相關關繫,以保定市新市區為例,選取斑塊麵積指數、斑塊形狀指數、斑塊分散指數3箇指標綜閤反映耕地細碎化程度,併通過全跼和跼部莫蘭指數分析其空間相關性。結果顯示:①斑塊麵積指數空間分異與形狀指數類似,總體特徵是西部高于東部,斑塊分散指數的分佈則與之相反;②新市區3箇耕地細碎化指數的空間聚集程度順序為:分散指數>麵積指數>形狀指數;③斑塊麵積指數和斑塊形狀指數的 H-H型分佈規律相似,主要集中在市區西部,而斑塊分散指數 H -H型則集中分佈于市區週圍。結果錶明:掌握新市區耕地細碎化空間格跼及其空間相關關繫可以為耕地集約化利用提供決策支持。
위연구성시교구경지세쇄화정도급기공간상관관계,이보정시신시구위례,선취반괴면적지수、반괴형상지수、반괴분산지수3개지표종합반영경지세쇄화정도,병통과전국화국부막란지수분석기공간상관성。결과현시:①반괴면적지수공간분이여형상지수유사,총체특정시서부고우동부,반괴분산지수적분포칙여지상반;②신시구3개경지세쇄화지수적공간취집정도순서위:분산지수>면적지수>형상지수;③반괴면적지수화반괴형상지수적 H-H형분포규률상사,주요집중재시구서부,이반괴분산지수 H -H형칙집중분포우시구주위。결과표명:장악신시구경지세쇄화공간격국급기공간상관관계가이위경지집약화이용제공결책지지。
To explore the fragmentation and spatial correlation of suburban cultivated land ,a case study of the new urban area of Baoding City was conducted ,adopting as indexes of cultivated land fragmentation were calculated on the basis of land use change survey .Spatial patterns of cultivated land patch indexes of area ,shape and dispersion were assessed .The correlation among them was described by the Moran's I and the Local Moran's I .The conclusions are:(1) the regularity of patch area index is that general characteristics of the west is higher than the east ,which is similar to the patch shape index .The patch dispersion index is on the contrary ;(2) the spatial autocorrelation indicated that the accumulation order of three land fragmentation indexes was:patch dispersion index per unit>patch area index per unit> patch shape index per unit ;(3) the regularity of the H-H (high spatial autocorrelations) of patch area index was similar to the patch shape index .The patch dispersion index was on the other side .Results show that mastering the spatial patterns of the cultivated land and the autocorrelations among them can be useful to the intensive utilization of cultivated land .