The application of ANN-FLUS model in reconstructing historical cropland distribution changes:A case study of Vietnam from 1885 to 2000
The historical changes in land use and land cover hold significant value for under-standing the dynamics of human-environment interactions across various eras.Traditional land reclamation priority models have often overlooked the principles of land use conversion and the neighborhood effects,resulting in inaccuracies in the reconstruction process.This study utilizes a diverse range of historical documents to quantify the total cropland area and nine influential factors over five pivotal years,spanning from 1885 to 2000 in Vietnam.Employing the ANN-FLUS model,known for its prowess in huge-volume data processing and extraction of land con-version rules,the analysis delves into cropland distribution changes.The findings revealed that:(1)The cropland area experienced a growth from 1,5 3 2x103 hectares to 6,200x 103 hectares,characterized by an initial rapid expansion and a subsequent deceleration after the 1940s.(2)Historically,the cropland has predominantly been distributed in the Red River Delta,Me-kong River Delta and the Central Coastal Plain.Nationally,the pattern of cropland reclamation has transitioned from a concentrated,gradual spread to a more dispersed and swifter enlarge-ment.(3)The ANN-FLUS model demonstrates its efficacy in the reconstruction of cropland dis-tribution in Vietnam for the year 1950,achieving a Kappa coefficient of 0.65,a notable im-provement over the reclamation priority model's 0.54 and the HYDE 3.2 dataset model's 0.50.