In Antarctica, low temperatures favor the trapping and deposition of polycyclic aromatic hydrocarbons (PAHs), whereas the biogeochemical cycling of PAHs on the Southern Ocean adjacent to Antarctica is highly sensitive to climate change. However, very little environmental and ecological information is available on interannual PAHs variations in the surface of the Southern Ocean. From 2022 to 2024, we employed the 38 th , 39 th...

Natural coastlines are vital for ecological security and sustainable development. To mitigate their decline, China has implemented requisition-compensation balance policy (RCBP) for coastlines, adapted from the management of cultivated land. This study systematically reviews the policy’s institutional evolution and highlights fundamental distinctions between coastlines and cultivated land in functional services, spatial hetero...