The Evaluation Of Cultivated Land Capacity In Zhucheng

Cultivated land is an important means of agricultural production,which has a direct impact on the development of agricultural production and people's material level.The study of cultivated land productivity evaluation can timely grasp the comprehensive production capacity and the change trend of cultivated land quality.It is of great significance to develop agricultural production according to local conditions,guide the adjustment of agricultural planting structure,and promote the sustainable development of agriculture.In this paper,based on technology of GIS,using topography data,land use status data,soil and other data,12 evaluation factors are selected and the weight is calculated,the subordinate function is established,the comprehensive index is accumulated and the grade of cultivated land is divided.This paper divides the cultivated land capacity of Zhucheng city into six grades,studies its spatial distribution,analyzes the problems existing in the utilization of cultivated land resources,and puts forward suggestions for the improvement of the production of cultivated land and the efficient utilization of land resources.Research shows:(1)The overall cultivated land capacity of Zhucheng city is relatively good.The first three levels of land cover a large area,accounting for a relatively high proportion,26098.28hm~2 of first level land,it accounts for 21.35%of the total arable land.34821.72hm~2 of second level land,it accounts for 28.49%of the total arable land;13017.09 hm~2 of third level land,it accounts for 10.65%of the total arable land;13648.32 hm~2 of fourth level land,it accounts for 11.17%of the total arable land;16012.36 hm~2 of fifth level land,it accounts for 13.11%of the total arable land;grade 6 land is 18619.42 hm~2,it accounts for 15.23%of the total arable land.On the whole,the excellent land distribution of the cities is mainly concentrated in the East and the north,the second-class land distribution area is the largest,the cultivated land in the northwest is medium,and the comprehensive index of cultivated land in the southeast is low.(2)The first level land is mainly concentrated in Xinxing Town,Changcheng Town,Baichihe Town,Mizhou street,Longdu street,Xiangzhou Town,Linjia village,etc.,with more inclined flat land and gentle slope landform,high irrigation guarantee rate and sufficient soil nutrients as a whole;the second level land is mainly concentrated in Shunwang street,Jiayue Town,Shiqiaozi Town,Xiangzhou town and Linjia village,with the largest distribution area of Shunwang street and inclined flat land The third level land is mainly concentrated in Jiayue Town,Shiqiaozi Town,Shunwang street,Linjia village,Xiangzhou town and Baichihe Town,with a larger slope than the first and second level land and a more reasonable soil nutrient;the fourth level land is mainly concentrated in Baichihe Town,Jiayue Town,Linjia village,Huanghua town and Taolin Town,with a significantly increased landform slope,The guarantee rate of irrigation is low,and the soil nutrient is medium;the fifth grade land is mainly concentrated in Jiayue Town,Linjia Town,Huanghua town and Shiqiaozi Town,with a terrain gradient of 25,backward irrigation and drainage conditions and lower soil nutrient;the sixth grade land is mainly concentrated in Linjia Town,Huanghua town and Taolin Town,with a large gradient,thin soil layer and very low soil nutrient.(3)Zhucheng has a large grain planting area,but most of them are dry lands,and the irrigation guarantee rate is low in mountainous areas;Economic crops other than food crops,such as vegetables,have relatively scattered planting layouts and have not reached scale.Chemical fertilizers are used in large amounts,and excess fertilizers cause damage to soil nutrients;planting is not organized,farmers are free to plant,extensive management methods such as planting and production,and modern agricultural technology is not applied;arable land planting frequency is too high,without soil When there is time for rest,the soil cannot be recuperated.It is necessary to increase the application of organic fertilizer,develop ecological agriculture,implement formula fertilization,increase the construction of water conservancy infrastructure,carry out mountain reconstruction,improve soil quality,adjust the planting structure,increase the transformation of medium and low yield fields,strengthen the cultivation of new technology farmers,focus on the exchange and training of agricultural production technology,strengthen scientific management,reasonably plan the cultivated land resources,improve the layout of planting industry,and introduce new and high technologies Agricultural production technology,focusing on the development of ecological agriculture.