【摘要】：以青龍滿族自治縣為例,依據(jù)景觀生態(tài)學(xué)相關(guān)理論,重點(diǎn)從地塊平均面積大小、地塊形狀的規(guī)則度以及地塊分布方面選取平均地塊面積、邊界密度、面積加權(quán)平均形狀指數(shù)和聚集度4個(gè)指標(biāo),借助數(shù)理統(tǒng)計(jì)方法和GIS技術(shù)對(duì)研究區(qū)耕地細(xì)碎化程度進(jìn)行測(cè)算分級(jí),并應(yīng)用地理加權(quán)回歸模型分析了研究區(qū)耕地細(xì)碎化綜合指數(shù)與坡度、距村落距離、距河流距離、距道路距離之間的空間關(guān)系。結(jié)果表明:青龍滿族自治縣耕地細(xì)碎化以中度細(xì)碎化和重度細(xì)碎化為主,占比分別為45.18%,49.19%;距村落距離、距道路距離與耕地細(xì)碎化程度呈負(fù)相關(guān)關(guān)系,距河流距離、坡度與耕地細(xì)碎化程度呈正相關(guān)關(guān)系;各影響因素影響度都表現(xiàn)出了顯著的空間非平穩(wěn)性,且在空間上波動(dòng)較大。研究所得結(jié)論對(duì)耕地規(guī)�；�(jīng)營(yíng)和土地利用效率的提升具有一定的參考意義。
[Abstract]:Taking the Manchu Autonomous County of Azure Dragon as an example, according to the theory of landscape ecology, the average plot area and boundary density are selected from the average area size, the regular degree of the block shape and the distribution of the block, according to the theory of landscape ecology. With the help of mathematical statistics and GIS technique, the area weighted average shape index and aggregation degree were used to measure and classify the degree of fineness of cultivated land in the study area. The spatial relationship between the comprehensive index of cultivated land fragmentation and slope, distance from villages, distance from rivers and distance from roads was analyzed by using geographical weighted regression model. The results showed that the cultivated land of Azure Dragon Manchu Autonomous County was mainly subdivided into moderate and severe ones, the proportions were 45.18 and 49.19.The distance from villages and roads was negatively correlated with the degree of cultivated land fragmentation, and the distance from rivers. There was a positive correlation between the slope and the degree of fineness of cultivated land, and the influencing factors showed significant spatial nonstationarity and large spatial fluctuation. The conclusion of the study has certain reference significance for the improvement of cultivated land scale management and land use efficiency.
【作者單位】： 河北農(nóng)業(yè)大學(xué)國(guó)土資源學(xué)院;
【基金】：河北省社會(huì)科學(xué)基金2016年度項(xiàng)目“生態(tài)文明建設(shè)背景下貧困地區(qū)的土地多功能轉(zhuǎn)變與響應(yīng)機(jī)制研究”(HB16GL048)
【分類號(hào)】：P208;F323.211

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1 董洋洋;商水縣白寺鎮(zhèn)耕地細(xì)碎化評(píng)價(jià)研究[D];河南農(nóng)業(yè)大學(xué);2012年

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