Research Progress

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  Simultaneous Reduction Cadmium and Arsenic accumulation in Rice Grains by EDTA·Na2Fe

  Cadmium (Cd) and arsenic (As), the two main inorganic pollutants in arable land in China, have strong biological toxicity and soil availability. It is easy to accumulate in rice (Oryza sativa L.) and affect health after entering the human body through the food chain. Iron fertilizer has been widely used to reduce Cd content in rice. Compared with inorganic iron fertilizer, chelated iron fertilizer has a better effect on reducing Cd accumulation in rice.

  Dec 10, 2024
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  New Insights Into the Trade-Off Between Soil Organic Carbon Formation and Stability

  Soil organic carbon (SOC) is the largest carbon pool in terrestrial ecosystems, playing a vital role in climate regulation and ecosystem sustainability. Microbial carbon use efficiency (CUE) refers to the proportion of assimilated carbon retained in microbial biomass. High CUE promotes SOC formation by driving microbial growth and the production of necromass through microbial death. Meanwhile, the stabilization of microbial necromass by soil aggregates and minerals enhances SOC stability. Thus, SOC accumulation involves two fundamental processes: SOC formation and stability.

  Nov 21, 2024
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  Human Disturbance Intensified the Erosion and Sediment Production of Karst Depressions During the Historical Period, New Study

  Recently, the research team led by Prof. Wang Kelin from the Institute of Subtropical Agriculture, Chinese Academy of Sciences pioneeringly analyze the surface process and the causes of human disturbance in the watershed in the historical period based on the filling process in karst depression and the historical environmental information of sediment. An important progress was made in the impact of human disturbance on soil erosion in the karst region of southwest China during the historical period.

  Sep 27, 2024
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  How the Rock Plant Absorb Rock Moisture to Maintain Transpiration

  In the previous studies, Prof. Chen Hongsong from the Institute of Subtropical Agriculture of Chinese Academy of Sciences, led the team to found that some plants in the soil-dominated habitat (called soil plants) usually preferred to absorb the shallow layer water, while in the rock-dominated habitat others (called rock plants) could rely on deep layer water to alleviate water stress. “Now, we try to quantified the effects of soil and epikarst water on transpiration based on the physiological characteristics of root and leaf in karst region in southwest China.” Prof. Chen said.

  Sep 26, 2024
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  Precipitation Sensitivity Thresholds Clarified for Vegetation Growth in Karst

  Large-scale ecological projects have significantly “greened” the karst region in Southwest China over the past 20 years. However, the fragile geological setting, the frequent occurrence of extreme droughts in recent years, in the context of global climate change, has increased uncertainty and risk in the recovery and growth of vegetation.

  Sep 12, 2024
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  Progress in Flood Risk Management for Southwest China's Karst Agriculture Ecosystems

  A Researcher team led by Dr. Xu Xianli, from the Institute of Subtropical Agriculture, Chinese Academy of Sciences, have made significant progress in understanding how agricultural ecosystems in the karst depressions of Southwest China respond to flood risks.

  Sep 09, 2024
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  Researchers Separated the Key Factors Influencing Runoff and Sediment Yield Changes in Different Karst Watersheds

  Recently, researchers led by Prof. Kelin WANG from the Institute of Subtropical Agriculture, Chinese Academy of Sciences, demonstrated that the spatial variation and controlling factors of runoff and sediment yield (SY) in different karst watersheds were quantitatively analyzed.

  Sep 04, 2024
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  Researchers Uncover the Mechanism of Organic Carbon Protection in Agricultural Soils across Eastern China

  Researchers from the Institute of Subtropical Agriculture, Chinese Academy of Sciences, in partnership with international colleagues, made strides in reveal soil organic carbon sequestration mechanisms in Eastern China.

  Aug 12, 2024
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  Scientists Decode Weaning Resistance of Chinese Indigenous Piglets

  A research group led by Prof. Xiangfeng Kong from the Institute of Subtropical Agriculture of the Chinese Academy of Sciences systematically investigated the differences in the development of intestinal barrier and the regulatory mechanism of dietary fiber in three different breeds of pigs (Taoyuan black, Xiangcun black, and Duroc), and found that there were differences in intestinal development., Local pig breeds presented stronger resistance to weaning stress than the foreign pig breed.

  Aug 12, 2024
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  New Study Uncovers How Microbial Metabolic Capacity Regulates Mineral-Associated Organic Carbon Accrual in Subtropical Paddy Soils

  In the most recent study published in Soil Biology and Biochemistry on May 27th, researchers led by Prof. Wu Jinshui from the Institute of Subtropical Agriculture, Chinese Academy of Science , collected subtropical paddy soil samples along the organic C gradient ranging from 4.0 to 40.1 g kg-1 to investigate the relationship between MAOC accrual and microbial metabolism using a combination of size fractionation, 18O-H2O incubation, and biomarker techniques analyses.

  Jun 06, 2024