Spatial Identification of Connected Arable Lands Using Geometric Network Model
Abstract:Arable land connectivity is one of the most important factors in permanent basic arable lands demarcating. While currently only the spatial distance is taken into consideration in the majority methods of identifying connected arable lands, which cannot answer some special circumstances, even though these circumstances are not rare. In this paper, a new method using geometric network model is presented to identify the farmland connectivity. The spatial distance between arable patches is considered. Moreover, a new factor that the mosaic element (features inlaid in arable patches, such as grassland, pond and highway) is another important consideration in this method. The mosaic element is divided into two classes, and has either positive or opposite effects for connectivity. In the end, a village in Jiangsu province (east China) is taken as the study area, using the method to identify the connected arable lands. On this basis, it is compared with the result using the method without considering mosaic elements. Results show that the method proposed in this article is more scientific and reasonable.
Document Type: Research Article
Publication date: January 1, 2012
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