Rurality Evaluation And Temporal And Spatial Difference Based On Land Use In A Middle Size Area

Facing challenges of economic globalization,rapid urbanization,the transformation of industrial structure and employment structure,China's rural development has entered a new era of transformation.Rural area as an important part of urban and rural integration,rural land use planning and management has a unique feature.Land as a spatial carrier of rural social and economic activities,its characteristics are closely related with rural social and economic development.In the process of promoting the construction of new countryside,it is important to pay attention to the relationship between rural development and land use.By clarifying the structure and pattern of rural land,understand the rural functions so that promote the new urbanization construction and provide scientific reference.Rurality studies are mainly conducted in rural areas,we can use rurality indices to classify rural development types.In view of the current research on the relationship between rurality and land use,especially lack of study of rurality base on land use in the Pearl River Delta region.This paper uses land use data of Panyu District and Conghua District in 1990,2000 and 2010 and analyzes the land use change characteristics of the two places from the town scale,constructs the rurality evaluation index system based on the land use characteristics and calculates the rurality index of the towns of Panyu and Conghua districts and divides the rural development grades,and analyzes temporal and spatial changes of rurality,in order to explore the relationship between rurality and land use.The paper not only enriches and expands the contents of rurality studies,but also facilitates the rational use of rural land in Guangzhou.(1)During the study period,the structure and dynamic degree of land use in Panyu and Conghua areas changed significantly.Among them,the cultivated land area of Panyu District was decreasing in 1990-2010,the construction land and water area expanded,the construction land dynamic rate was 14.77%,the cultivated land was the fastest and the dynamic degree was-3.1%,and the comprehensive land use dynamic degree was 3.370%,the land changes more frequently.The rural area and the number of plaques increased,the average plaque area decreased,high-density rural settlements spread from the center to the surrounding,the main adjacent land from the water into construction land.In Conghua area from 2000 to 2010,woodland was mainly land use type,the proportion of construction land was small,the area of water and garden area increased the fastest,the grassland area was the slowest,and the comprehensive land use dynamic degree in 2000-2000 was 2.082%,the average area of patches of rural residents was smaller and more fragmented than the area of Panyu District,and the distribution of high density rural settlements was relatively small,which was concentrated in the flat and flat areas.(2)Based on the study of land use change and rurality connotation,11 evaluation indexes were selected from three aspects: rural production,rural life and rural ecology,which reflect rural differentiation and change characteristics.Rurality index declined in study area.It can be seen that the rurality index of Panyu District is lower than that of Conghua area.Compared with the rural area index of the two districts,the differences in the townships of Panyu District are gradually narrowing,while the differences within the townships of Conghua are gradually exacerbated.The paper divides the rurality grades according to rurality index.The mainly rurality grades of Panyu District in 1990 is strong degree(61.1%),but in 2000 is medium-level(50%),in 2010 is weak level(50%),while the Conghua area in 2000 and 2010 are mainly strong grade(50%),but the proportion of strong level from the original 25% to 12.5%.By analyzing the rural Moran's I index,it is found that the rurality of the two districts has a trend of constant agglomeration.The study shows that the factors such as elevation,industrial development level,location factor,traffic construction,urbanization rate affect the spatial and temporal differentiation through changing land use structure.(3)The relationship between the rurality grade and the land use structure is that the proportion of agricultural land in Panyu district decreased with the decrease of the rurality grade,in opposite,the proportion of construction land increased.The interannual variation was getting smaller and smaller,and the three categories land were more balanced.With the decrease of the rurality index,the proportion of agricultural land in the Conghua area was also decreasing,and the construction land increased.The proportion of agricultural land was much larger than that of construction land.The relationship between rurality and land use dynamic degree is that the more frequent land change in the town area,and the greater the change of rural index.There is a significant link between the single dynamics of forest land and rural settlements with the rurality index.