CAJ | 학술논문

通过遥感反模型、综合估算模型、生物地球化学循环模型3个模型探讨了土地用途转换效应评价模型与方法。结果表明,遥感反演模型以植被第一生产力模型为代表,能够在较大尺度上监测与土地用途转换密切联系的生态系统生产力变化;综合估算模型以农业生产力估算系统(ESAP)为代表,适用于评价土地用途转换导致的农业生产力变化;生物地球化学循环模型以CENTURY为代表,一般服务于模拟生态系统内部C、N、P与S营养元素的变化规律;土地用途转换效应评价模型为评价土地用途转换效应,深入分析土地用途带来的生态环境问题提供了工具,利用土地用途转换效应评价模型测算出的区域尺度土地用途转换效应对于合理制定土地利用管理政策具有指导价值。
통과요감반모형、종합고산모형、생물지구화학순배모형3개모형탐토료토지용도전환효응평개모형여방법。결과표명,요감반연모형이식피제일생산력모형위대표,능구재교대척도상감측여토지용도전환밀절련계적생태계통생산력변화;종합고산모형이농업생산력고산계통(ESAP)위대표,괄용우평개토지용도전환도치적농업생산력변화;생물지구화학순배모형이CENTURY위대표,일반복무우모의생태계통내부C、N、P여S영양원소적변화규률;토지용도전환효응평개모형위평개토지용도전환효응,심입분석토지용도대래적생태배경문제제공료공구,이용토지용도전환효응평개모형측산출적구역척도토지용도전환효응대우합리제정토지이용관리정책구유지도개치。
Evaluation models and methods for land use conversion effects were discussed through remote sensing inversion,comprehensive estimation and biogeochemistry cycle model.The results showed that the remote sensing inversion model, which is represented by the vegetation first productivity model,and capable of monitoring the changes of ecosystem productivity due to land use conversion in a large scale.The comprehensive estimation model,which is represented by agricultural productivity estimation system(ESAP),and adaptable to evaluate the impacts on agricultural productivity from land use conversion.The third kind model for analyzing the impacts of land use conversions,biogeochemical cycles model and represented by the CENTURY,is capable of simulating the impacts on cycles of C,N,P and S elements due to land use conversion.These models are utilized to evaluate the effects of land use conversion,analyze its causes and ecological effects.The estimation results of such models provide valuable information to faciliate not only systematic management of the exsiting land use conversion but also planning and policymaking for future land use management.