Northeast Institute of Geography and Agroecology

Comparison of the Photodegradation of Pharmaceuticals and Personal Care Products (PPCPs) in Water and Ice

Abstract Photochemical reactions are prevalent in natural aquatic environments and play a crucial role in aquatic ecosystems. Sunlight-induced photodegradation is particularly effective in degrading various pharmaceuticals and personal care products (PPCPs). However, the photoche...

High‐Resolution Temperature and Precipitation Variability in Northeast Asia Since the Last Glacial Maximum Recorded in an Annually Laminated Maar Lake

Abstract Temperature and precipitation variability in monsoonal Asia is central to understanding regional climate dynamics and global teleconnections. How post‐LGM warming and hydroclimate change unfolded in Northeast Asia, and how they were linked to external forcing, remain poo...

Sensitivity of Satellite-Derived Gross Primary Productivity to Environmental and Canopy Inputs in a Subtropical Mangrove Forest

Accurate estimates of mangrove gross primary productivity (GPP) are needed to quantify coastal carbon dynamics, but the performance of satellite-based GPP models in mangrove forests remains uncertain. We compared eight models—four light-use-efficiency models (MOD17, EC-LUE, VPM,...

Tracking vegetation disturbance, recovery, and sustainability in open-pit mining areas of Beijing–Tianjin–Hebei Region from 2000 to 2024

Evaluating the overarching efficacy of environmental rehabilitation initiatives and driving sustainable progress within open-pit mining areas heavily depends on the precise, sustained tracking of both vegetative degradation and its subsequent regenerative phases. Overcoming the b...

Robust hyperspectral retrieval of mangrove functional traits across species and spatial scales using GA-ELM

Plant functional traits provide critical indicators of ecosystem functioning, biodiversity maintenance, and plant adaptive strategies under environmental change. However, hyperspectral retrieval of mangrove functional traits remains challenging because trait-related spectral sign...

Biochar–Straw Interaction Drives Soil Carbon Accrual by Modulating Microbial Metabolic Pathways

Abstract Straw and biochar additions can enhance long-term carbon storage, yet how their interactions regulate carbon mineralization and allocation remains unclear. We conducted a 360-day microcosm incubation employing a reciprocal 13C-labeling design that paired 13C-labeled stra...

Trophic reorganization may contribute to shifts in nitrogen transformations following alleviation of saline alkaline stress

Soil salinization is a widespread form of land degradation, yet how saline-alkaline stress is linked to belowground micro-food webs and shapes nitrogen transformations remains poorly understood. Here we compare natural saline–sodic and reclaimed farmland soils in northeastern Chi...

Low-intensity fire-derived pyrogenic carbon decouples methane and carbon dioxide production in aerobic and hypoxic layers of permafrost peatlands

Wildfire frequency is increasing in high-latitude permafrost peatlands, leading to the input of pyrogenic carbon (PyC) into the active layer. The effect of PyC on the critical greenhouse gases CH 4 and CO 2 production in the active layer (aerobic and hypoxic) is poorly constraine...

Numerical modeling on the mechanisms of chlorine chemistry in snowpack and their impact on secondary atmospheric pollution

Snow with high albedo enhances atmospheric photochemical reactions, influencing key oxidative processes. Nitryl chloride (ClNO 2 ), as a strong oxidizing species, is generated by the heterogeneous reaction between dinitrogen pentoxide (N 2 O 5 ) and chloride adsorbed on aerosol a...

Small mammalian herbivores at moderate densities facilitate livestock growth by improving vegetation composition in grasslands

Small mammals and large herbivores have co-evolved in grasslands for millions of years, yet how they interplay remains unclear. Although large herbivores can significantly affect the smaller ones, the reversal effect is largely unknown. On the Qinghai–Tibetan Plateau, plateau pik...

Balancing site fidelity and exploration: individual movement strategies of migratory geese under extreme drought

Animal migration is an adaptive strategy for exploiting spatio-temporal fluctuations in resource availability, where site fidelity provides advantages under predictable conditions. However, under global climate change and habitat degradation, it remains unclear how waterbirds adj...

Seasonal dynamics of aquatic organic carbon driven by floating-mat formation in a terrestrializing lake

Lakes are important components of the land carbon cycle, but how floating mats during lake terrestrialization reshape aquatic organic carbon remains unclear. Here we show, using seasonal field observations, carbon isotope tracing, and structural equation modelling, that floating...

Unlocking the Anticancer Potential of Patchouli Leaves: Molecular Mechanisms and Translational Perspectives

Cancer remains one of the leading causes of global mortality, with its incidence continuing to rise due to population growth, aging, lifestyle factors, and environmental exposures. Despite significant advances in early diagnosis and therapeutic strategies, the clinical management...

Deciphering riverine CODMn sources: driver identification and carbon cycle impacts

The large-scale monitoring of riverine organic pollution is of significant practical importance for river basin ecological management and sustainable development to replace the traditional monitoring stations. The development for remote sensing of riverine chemical oxygen demand...

Evolution of water pattern in Chagan Lake Basin from 2017 to 2025 using PlanetScope images and a newly developed MS-FCN8s algorithm

As a typical lake group in Northeast China, the Chagan Lake Basin's water dynamics are crucial for regional water security and ecological protection. High-resolution images have limited spectral information, water indices perform poorly in complex backgrounds, and deep learning m...