Analysis Of Farmland Landscape And Its Influencing Factors In Wang River Watershed Of Anze County

Cultivated land is the material basis of human production and life,and its quantity and structure are not only related to food security and social stability,but also to the impact of ecological environment security and ecological balance.This paper selects Anze County Wangcun River watershed as the study area,with the support of ArcGIS and Fragstats software technology,the land survey data in the basin as the Wang Cunhe foundation,with the index of landscape ecology,the distribution status of cultivated land in study area and farmland landscape features were analyzed,and the selection of terrain,river,population factor,factor of the effects of spatial distribution are discussed.Research shows:(1)The main types of farmland landscape in the basin as the reclaimed land,characterized by small patches,multi patch and high density,patch boundary folds,complex shape,high degree of combination of complex internal open wasteland,farmland mosaic and other types of high degree of separation,breaking a high degree.The contracted land has higher cluster in the spatial distribution,the average area of the contracted land is large,the spatial connectivity is high,and the fragmentation is low.The number of mobile and other collective land in the watershed is small,the shape of the patch is relatively simple,the distance between the patches is far,and the landscape fragmentation is larger.(2)There were significant differences in the distribution of cultivated land landscape between the village and the river basin.The number of patches,patch area and percentage of landscape decreased with the increase of distance.The average area of Walnut Village plaque is relatively large,and the degree of agglomeration between the plaque and the plaque is high,the degree of twist of the patch boundary is low,and the shape is relatively simple.Little difference with Wang Gou Kou Cun average patch area,land between the adjacent degree and high degree of fitting.(3)The distribution of cultivated land landscape is closely related to topography,river and population.First of all,from the elevation and slope conditions,contracted land and mobile distribution at an altitude of 804-960 m flat slope,micro slope and gentle slope area,land reclamation and other collective land in the 960-1052 m slope area distribution is more,the slope,slope and 1052 m above the area cultivated land distribution is less.From the aspect of cultivated land,Wang River Basin is mainly distributed in the southeast slope,east slope,south slope and north slope,the West and the north slope distribution less.Secondly,the total cultivated land in the basin,from the regional cultivated land patch distribution near the river is relatively dense,and by a larger plaque composition,low landscape fragmentation;different land categories,plaque area,mobile and other land collective land decreases with the increase of the distance from the river generally showed a decreasing trend,and the reclaimed land it decreased after increasing.Finally,the results of correlation analysis showed that the number and area distribution of cultivated land in the watershed were positively correlated with the number of administrative villages.