Land use drives the distribution of free, physically protected, and chemically protected soil organic carbon storage at a global scale.

Soil organic carbon (SOC) sequestration is increasingly emphasized as a climate mitigation solution, as scientists, policy makers, and land managers prioritize enhancing belowground C storage. To identify key underlying drivers of total SOC distributions, we compiled a global dataset of soil C stocks held in three chemical forms, reflecting different mechanisms of organic C protection: free particulate organic C (fPOC), physically protected particulate organic C (oPOC), and mineral-protected soil organic C (mSOC). In our dataset, these three SOC pools were differentially sensitive to the effects of climate, soil mineralogy, and ecosystem type, emphasizing the importance of distinguishing between physical and chemical C protection mechanisms.

Association Between Restricted Abortion Access and Child Entries Into the Foster Care System.

Importance: The 2022 US Supreme Court decision Dobbs v Jackson Women's Health Organization overturned federal protections to abortion care, allowing many states to severely restrict or ban access to abortion. Given the implications of the Dobbs ruling, there is a need to understand the full consequences of restricted abortion access. Before 2022, many states restricted access to safe and legal abortions through Targeted Regulation of Abortion Providers (TRAP) laws, which provide a historical mode for estimating the consequences of abortion restrictions.

A quantitative analysis of microbial community structure-function relationships in plant litter decay.

Soil microbes play a central role in ecosystem element cycling. Yet a central question in microbial ecology remains unanswered: to what extent does the taxonomic composition of soil microbial communities mediate biogeochemical process rates? In this quantitative review, we explore the mechanisms that lead to variation in the strength of microbial community structure-function relationships over space and time. To evaluate these mechanisms, we conduct a meta-analysis of studies that have monitored the decomposition of sterilized plant litter inoculated with different microbial assemblages.