摘要
简要地介绍了区域模拟及对模拟结果进行检验的方法。基于空间地理信息的模拟既能反映大范围地区内气候、土壤等地理信息的空间变量对作物产量的影响 ,也能反映不同地区社会经济情况、农业耕作方式等对作物生产的影响。在GIS技术支持下 ,对基于站点的作物生长模拟模型进行改造 ,从而对大区域范围进行以特点网格 (如 5 0km× 5 0km)
The traditional assessments of climate change on crop based on simulation models are normally site-specific. In policy formulation, however, spatial variability of crop production often needs to be evaluated due to different soil conditions, weather conditions and agricultural practices within a target-region.A spatial crop simulation methodology based on GIS combining process-crop model was introduced, along with its validation process and approaches of spatial database collection.
出处
《中国农业气象》
CSCD
2004年第2期28-32,共5页
Chinese Journal of Agrometeorology
基金
"十五"国家重点科技攻关课题之专题"气候变化对我国农业影响的阈值及综合评估"(合同号 :2 0 0 1-BA6 11B - 0 2 - 0 2 )
