Wetland soil carbon storage in the Prairie Pothole region of Saskatchewan

作物生产和湿地的共存是农业景观中的一个持续挑战，特别是随着人们对湿地碳储存重要作用的认识不断提高。草原坑洼区（PPR）由于其地质和地形，具有重要和独特的湿地类型，被称为草原坑洼。目前，加拿大至少有70%的草原坑洞已被排干，这对加拿大大草原的土壤有机碳（SOC）储量具有重要意义，因为草原坑洞可以储存两倍于免耕农田的SOC。鉴于其作为碳汇的潜力，草原坑洞湿地可以对加拿大采取行动，以自然为基础解决气候变化问题作出重要贡献。目前，湿地SOC存储的PPR的估计往往是广义的气候制度，以及湿地类型与不同数量的地表水存储和时间排水动态。本研究的目标是改进加拿大PPR土壤碳储量估算工具。创建特定区域的股票价值是必要的，以提高湿地SOC股票估计的准确性。具体而言，我们的目标是完善股票估计，以更好地解释湿地类（短暂的，临时的，季节性的），气候梯度和自然发生的盐度之间的相互作用。

The co-existence of crop production and wetlands is an on-going challenge in agricultural landscapes, especially with the increasing understanding of the important role of wetlands for carbon storage. The Prairie Pothole Region (PPR) has important and distinct types of wetlands due to its geology and topography, known as prairie potholes. Currently at least 70% of prairie potholes in Canada have been drained, which is of significance to soil organic carbon (SOC) stocks in the Canadian Prairies as prairie potholes can store as much as twice the SOC in no-till croplands. Given their potential as carbon sinks, prairie pothole wetlands can have an important contribution to Canada's action on nature-based solutions for climate change. Currently, estimates of wetland SOC storage for the PPR are often generalized across climate regimes as well as wetland types with varying amounts of surface water storage and temporal drainage dynamics. The goal of this research will be to improve tools for estimating soil carbon stocks in the Canadian PPR. The creation of region-specific stock values is necessary to improve the accuracy of wetland SOC stock estimates. Specifically, we aim to refine the stock estimates to better account for the interactions amongst wetland classes (ephemeral, temporary, and seasonal), climate gradients and naturally occurring salinity.