Soil-plant-atmosphere interactions at the regional scale

气-陆耦合模式是评估全球气候变化对区域影响的重要工具。区域气候模拟的质量在很大程度上取决于陆面交换过程的准确表现。土壤-植物-大气的相互作用在这方面起着关键作用。在第一阶段，我们已经集成了先进的作物生长模式GECROS与陆面模式NOAHMP。在第二阶段，我们将测试NOAHMP-GECROS在模拟土壤水分状况、作物生长和地表交换方面的能力和稳健性。模型测试和必要时的进一步开发都是基于我们的长期涡动协方差和土壤水分测量。NOAHMP-GECROS是大气-陆面-作物模式ALCM（NOAHMP-GECROS coupled with WRF）的一部分，是陆地系统模式系统（ILMS）的重要组成部分。综合土地管理系统将与研究股的其他项目合作，用于研究气候变化下土地系统（Kraichgau和Swabian Alb）的反馈。在这一共同努力中，我们将调查，除其他外，在详细的土壤过程和作物生长必须考虑可靠地模拟景观功能，如作物生产和水分状况的问题。

Coupled atmosphere-land surface models are important tools for assessing the impact of global climate change on a regional scale. The quality of regional climate simulations is critically dependent on an accurate representation of land surface exchange processes. Soil-plantatmosphere interactions play a key role here. In the first phase, we have integrated the advanced crop growth model GECROS with the land surface model NOAHMP. In the second phase, we will test the capability and robustness of NOAHMP-GECROS with regard to simulating soil water regime, crop growth and land surface exchange. Model testing and, if necessary, further development are based on our long-term eddy covariance and soil water measurements. As part of the Atmosphere-Land surface-Crop Model ALCM (NOAHMP-GECROS coupled with WRF) NOAHMP-GECROS is an important component of the Integrated Land-system Model System (ILMS). In cooperation with the other projects of the Research Unit, ILMS will be used to study feedbacks in the land system (Kraichgau and Swabian Alb) under climate change. Within this joint effort, we will investigate, among others, the question in which detail soil processes and crop growth have to be considered to reliably simulate landscape functions such as crop production and water regime.