Research Progress

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  Study Reveals How C:N:P Stoichiometry Responds to Agricultural Land Use and Climate

  A research team led by Prof. SU Yirong from the Institute of Subtropical Agriculture found how the soil C:N:P stoichiometry is affected by upland and paddy cropping.

  Jan 04, 2021
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  Study Reveals Special "Regulating Valve" of Organic Carbon Mineralization in Paddy Soil

  Recently, the research team of the Institute of subtropical agricultural ecology, Chinese Academy of Sciences, through a group of 78 days of cultivation experiments, found that oxygen conditions in paddy soil will affect the number of key limiting factors of organic carbon mineralization, and then affect the carbon sequestration efficiency.

  Dec 22, 2020
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  Study Reveals Spatiotemporal Water Quality Variations and How They Are Affect by Hydrological Conditions in Dongting Lake

  A team of researchers from the Institute of Subtropical Agriculture (ISA) of the Chinese Academy of Sciences studied the spatiotemporal water quality variations and their relationship with hydrological conditions in Dongting Lake after the operation of the Three Gorges Dam (TGD), China.

  Oct 29, 2020
• How External Nitrogen Impact on Diazotrophs in Karst Region?

  Researchers from the Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences (CAS), Guangxi Zhuang Autonomous Region, southwest China investigated the changes of diazotrophs abundance, diversity, and community composition under different N inputs in the natural and artificial (forage grass cultivation) grasslands.

  Oct 19, 2020
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  Researchers Reveal Recharge Mechanism of Karst Springs and Stream

  Based on the hydrological monitoring in the Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, coupling with geophysical technology and isotope/hydrochemistry tracer technique, Chen Hongsong ecohydrology team from the Institute of Subtropical Agriculture (ISA), Chinese Academy of Sciences, studied the springs and stream recharge processes in a small karst catchment, and assessed the transfer and storage function of karst aquifer.

  Oct 16, 2020
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  Microbial Biomass Change Shifts the Role of Iron Oxides in Organic C Mineralization in Anoxic Paddy Soil

  Therefore, a research group led by Researcher WU Jinshui from the Institute of Subtropical Agriculture (ISA) of the Chinese Academy of Sciences performed an incubation experiment by adding acetate (13C-labelled) and iron oxides (i.e. ferrihydrite and goethite) to unfumigated and fumigated soils under anaerobic conditions to reveal the effect of iron oxides and microbial biomass on organic C mineralisation in anoxic paddy soils.

  Oct 16, 2020
• How Tillage Impact on Soil Carbon and Nitrogen in Karst Region?

  Researchers from the Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences (CAS), Guangxi Zhuang Autonomous Region, southwest China investigated the changes of soil C or N, CO2 fluxes, and microbial metabolic functional diversity under different tillage frequency and maize planting, which was conducted a 1-year experiment.

  Oct 15, 2020
• Maternal Dietary Serine Improves Body Weight of Offspring Piglets

  Researchers in the Institute of Subtropical Agriculture (ISA) of the Chinese Academy of Sciences investigated the effects of different levels of maternal dietary serine from late pregnancy to lactation on sow reproductive performance and offspring performance, and on the metabolome of milk and the serum of sows and their offspring.

  Oct 13, 2020
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  Researchers Reveal Water Quality Trends in Dongting Lake from 1991-2018

  Based on the Mann–Kendall (M–K) test and self-organizing map (SOM), a team of researchers from the Institute of Subtropical Agriculture(ISA), Chinese Academy of Sciences characterized and evaluated water quality trends in Dongting Lake, China, from 1991 to 2018, before and after the inauguration of the Three Gorges Dam (TGD).

  Oct 12, 2020
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  Composited Organic Mobilizing Agents Enhance Cd Accumulation in Sorghum

  To further enhance the efficiency, phytoremediation combined with heavy metal-mobilizing agents has been advocated and attracted research interests in recent years. A pot experiment was conducted with two composited organic agents (oxalic acid or citric acid + dissolved organic fertilizer (OA+DOF and CA+DOF)) and four application periods (seeding, jointing, flag leaf and heading stages) of sorghum (Sorghum bicolor L.), the team of researchers from Institute of Subtropical Agriculture(ISA), Chinese Academy of Sciences to investigate the enhancement effect of composited organic agents on Cd accumulation in shoots at the different growth stages of sorghum.

  Sep 16, 2020