基于水分胁迫的植被生长模型的构建与应用

Construction and Applying of Vegetation Growth Model Forced by Water Stress

在广义水资源合理配置模型——WACM模型的基础上,根据植被生理原理构建了基于水分胁迫的植被生长模型,模型主要包括植被生长发育阶段模块、碳循环模块和水循环模块,适用于多种作物,是一个通用模型。使用文献资料对植被发育阶段的长短和植被干物质量、作物产量的变化范围进行验证,并且在徒骇马颊流域运用该模型模拟了水分胁迫条件下的多种植被的干物质量和作物产量,模拟结果比较理想。

More and more attention is paid on the applying of vegetation growth model to water resources research fields.This paper is based on generalized Water resources rational Allocation and Cycle Model（WACM model）,and constructs a vegetation growth model based upon water stress according to physiological theory of vegetation,which is composed of the phase of vegetation growth module,carbon cycle module and water cycle module.This is a common model,and can be adopt by many crops.This model is tested by the length of growth phase,the weight of dry matter,and the variation range of crop yields with literature materials.By simulating the dry matter weight and yields of several crops with WACM model under water stress,the simulation results are similar with practical condition,so the simulation effort is satisfying.