A Study On The Healthy Evolution And Influencing Factors Of Cultivated Land Ecosystem

With the improvement of living standards,people not only need to eat well,but also eat well.Healthy farmland is the cornerstone of ensuring good food.Under my country’s strict farmland protection policy,the quantity protection of farmland has achieved remarkable results,but the quality protection is difficult.Based on this,the study,from the perspective of playing the guiding and forcing role of ecological environmental protection,proposes to study and analyze the health status and influencing factors of the cultivated land ecosystem based on the health examination of the cultivated land ecosystem,so as to provide useful method and path for promoting the improvement of the quality of cultivated land.The specific conclusions are as follows:(1)Based on the existing theories and concepts,the research puts forward the concept of cultivated land ecosystem health,Starting from the concept,construct the cultivated land ecosystem health system and measurement model.And selects Bozhou city as the research area.Starting from the theory and concept of cultivated land ecosystem health,combined with the PSR model,From the three aspects of pressure,state,and response,21 indicators were selected to construct a cultivated land ecosystem health detection index system,and the entropy weight-TOPSIS model was used to calculate the comprehensive index of cultivated land ecosystem health in Bozhou from 2000 to 2019.The results show that from2000 to 2019,the health index of cultivated land ecosystem in Bozhou City showed an overall upward trend,and the ecological health index of cultivated land was in a sub-healthy state by 2019.(2)Combining with the dynamics of cultivated land ecosystem health,observe the stability and future trends of changes in cultivated land ecosystem health in Bozhou City in the past 20 years.The results show that the dynamics of ecological health of cultivated land in Bozhou City are unstable and the range of changes is large,but the overall trend is in a downward trend,indicating that the future changes of the ecological health index of cultivated land in Bozhou City tend to be stable.(3)Finally,21 indicators were tested using the influencing factor diagnostic model to determine the main influencing factors for the transformation of the cultivated land ecosystem health index in Bozhou City.The diagnostic model of influencing factors shows that per capita afforestation area,per capita water resources,multiple cropping index,urban population density,effective irrigation rate,and agricultural mechanization per unit of arable land have a restrictive effect on the healthy construction of the cultivated land ecosystem in Bozhou City.The total industrial production value accounts for The proportion of GDP,the amount of plastic film used per unit of arable land,and the amount of chemical fertilizer used per unit of arable land have an impact on the health of the cultivated land ecosystem in Bozhou City.In response to the analysis results and research considerations,suggestions for increasing the health of the cultivated land ecosystem in Bozhou City are put forward:orderly promote the construction of farmland shelterbelts,stabilize the afforestation area and water storage capacity;implement the rotation and fallow system to promote land circulation;increase the intensity of land consolidation,Improve arable land and water conservancy supporting facilities;introduce enterprise investment,encourage returning to their hometowns to start businesses,and increase the attractiveness of regional talents;increase agricultural environmental protection sites and strictly control the source pollution of arable land.