【摘要】：【目的】集中連片是當(dāng)前農(nóng)用地整治的推進(jìn)手段,集中連片閾值的不同對(duì)農(nóng)用地整治工程成本有直接影響。本文基于景觀生態(tài)指標(biāo),研究農(nóng)用地整治中連片閾值的優(yōu)化方法�！痉椒ā客ㄟ^引入景觀生態(tài)指標(biāo),應(yīng)用GIS平臺(tái)的空間數(shù)據(jù)處理功能獲取指標(biāo)數(shù)據(jù),實(shí)現(xiàn)連片性評(píng)價(jià)的定量化;基于GIS平臺(tái)的緩沖功能,模擬設(shè)定不同閾值(dx)時(shí)連片性的變化;觀察dx在一定范圍內(nèi)變化時(shí)連片性的變化曲線圖,識(shí)別農(nóng)用地連片的最優(yōu)閾值(d0)。【結(jié)果】以廣東省羅定市2010年優(yōu)質(zhì)農(nóng)用地空間數(shù)據(jù)為例,當(dāng)農(nóng)用地整治連片間距范圍在0~50 m時(shí),閾值d0為12 m,因此建議將全區(qū)間距≤12 m的相鄰地塊進(jìn)行連接。對(duì)佛山市高明區(qū)農(nóng)用地?cái)?shù)據(jù)重復(fù)試驗(yàn),得到了該地區(qū)最優(yōu)連片閾值,表明該方法可用�！窘Y(jié)論】基于景觀生態(tài)指標(biāo)確定農(nóng)用地連片閾值,具有直觀、可靠和普適的優(yōu)點(diǎn),可以為全國范圍內(nèi)的農(nóng)用地整治工作提供參考。
[Abstract]:[objective] centralizing continuous slice is the current means of agricultural land regulation, and the difference of the threshold value has direct influence on the cost of agricultural land regulation project. Based on the landscape ecological index, this paper studies the optimization method of continuous threshold value in agricultural land regulation. [methods] by introducing landscape ecological index and applying spatial data processing function of GIS platform to obtain index data, the quantification of continuous evaluation can be realized. Based on the buffering function of GIS platform, the change of continuity of (dx) is simulated when different thresholds are set. Observe the curve of continuous change of dx in a certain range and identify the optimal threshold (d0) of agricultural land. [results] take the spatial data of high quality agricultural land in Luoding City, Guangdong Province as an example, The threshold value is 12 m when the interval between the continuous segments of agricultural land regulation is 0 ~ 50 m, so it is suggested that the adjacent plots with spacing 鈮，

本文編號(hào)：2401426