农村居民点整理潜力与景观特征关系研究

为更好地研究农村居民点整理潜力与其景观特征之间的关系，以2012年临夏县土地利用数据为基础，测算南塬乡各行政村农村居民点整理的可实现潜力，并采用景观生态学方法分别计算各村居民点形状、规模和分布3个方向的景观指数，运用主成分分析各景观指数贡献率的基础上引入综合景观特征值，探讨了农村居民点类型尺度上农村居民点整理潜力与综合景观特征值之间的关系。研究表明：（1）农村居民点整理潜力受自然、社会、经济等因素影响，可实现潜力仅为理论潜力的一半；（2）受地形影响，南塬乡各村居民点斑决分布差异较大，综合景观特征值能够全面地反映出各景观指数对整体格局的影响；（3）综合景观特征值和可实现潜力有很强的相关性，综合景观特征值越高说明居民点斑块越规则，其整理潜力越小，例如江家寨村综合景观特征值最高为1．409，但其可实现潜力仅为2．23hm2。

Study on the Relationship Between Rural Residential Land Arrangement and Landscape Features

To study the relationship between the rural residential land consolidation potential and their landscape features, the paper took Linxia County land use data in 2012 as a foundation to estimate the realized potential of rural residential land consolidation of every administrative village in Nanyuan Town, and used the landscape ecology method to calculate the residential shape, scale and distribution of rural settlements in these directions separately. Then the study introduced comprehensive landscape characteristic index on the basic （base） of the contribution rate of each landscape index that used PCA（principal component analysis） and discussed the relationship between the potential of the rural residential areas and the comprehensive landscape characteristic index in rural residential type scale. The research showed that： （1） the potential of rural residential land consolidation affected by the factors such as nature, society and economy, the realized potential was only half of theoretical potential. （2） There was a big difference between the distribution of plaque in villages in Nanyuan Township because of being affected by topography, comprehensive landscape potentiality was. Taking an example of Jiangjiazhai Village, the comprehensive landscape characteristic value was up to 1.409, but the realized ootential was only 2.23 hm2.