News----South China Botanical Carden, Chinese Academy of Sciences

2017-11-17

Research showing a two-layer mode of reticulate diversification in kiwifruit plants

Reticulate speciation caused by interspecific hybridization is now recognized as an important mechanism in the creation of biological diversity .However , depicting the patterns of phylogenetic networks for lineages that have undergone interspecific gene flow is challenging .On the basis of the elucidated hybridization relationships , the resear... Reticulate speciation caused by interspecific hybridization is now recognized as an important mechanism in the creation of biological diversity. However, depicting the patterns of phylogenetic networks for lineages that have undergone interspecific gene flow is challenging.
　　By using genome-wide sequencing, the researchers from both the South...

2017-11-16

Past climatic change as a driver of plant diversification in the karst ecosystems from southern China

Karst ecosystems in southern China are species-rich and have high levels of endemism , yet little is known regarding the evolutionary processes responsible for the origin and diversification of karst biodiversity .A typical karst plant in southern China . They found that speciation was positively associated with changes in past temperatures and ...
　　Karst ecosystems in southern China are species-rich and have high levels of endemism, yet little is known regarding the evolutionary processes responsible for the origin and diversification of karst biodiversity. Dr. Hanghui Kong et al. from the Plant Genetic Resources and Evolution Lab, South China Botanical Garden, reconstructed the phylo...

2017-11-06

Evolution and ecophysiology of Magnoliaceae species: new findings from South China Botanical Garden

As a basal angiosperm family , Magnoliaceae is extraordinary important for studying the evolution of flowering plants from phylogenetic and geographical perspectives .However , the ecophysiological adaptation underlying their divergent evolution and geographical pattern is unclear .Fig . 1 Magnoliaceae Garden in South China Botanical Garden , wi...
　　As a basal angiosperm family, Magnoliaceae is extraordinary important for studying the evolution of flowering plants from phylogenetic and geographical perspectives. However, the ecophysiological adaptation underlying their divergent evolution and geographical pattern is unclear.
　　During recent three years, Dr. Hui Liu et al. from Plant ...

2017-09-30

Recalcitrant Carbon Components In Glomalin-related Soil Protein Facilitate Soil Organic Carbon Preservation In Tropical Forests

Glomalin-related soil protein ( GRSP ) is recalcitrant glycoprotein , which is known as an important microbial by-product and crucial for preserving or accumulating soil organic carbon ( SOC ) .The three forests , including a planted forest ( PF ) , a secondary forest ( MF ) and a primary forest ( BF ) .This study demonstrated that the stubborn ...
　　Glomalin-related soil protein (GRSP) is recalcitrant glycoprotein, which is known as an important microbial by-product and crucial for preserving or accumulating soil organic carbon (SOC). However, the underlying mechanisms are not well understood.
　　Ph.D. student Jing Zhang with her supervisor Xuli Tang, from South China Botanical Garden...

2017-09-30

Remote Sensing of Environment: The Microwave Temperature Vegetation Drought Index (MTVDI) for long-term drought assessment

Satellite-based drought indices have been proved to be effective and convenient in detecting drought conditions at regional and global scales .Microwave sensors can overcome the shortages of visible/near infrared/thermal remote sensing and show to be another important approach for drought monitoring due to its all-weather working advantages .But...
　　Satellite-based drought indices have been proved to be effective and convenient in detecting drought conditions at regional and global scales. However, most current drought indices are based on the visible/near infrared/thermal remote sensing,which might be influenced greatly by cloud, atmospheric water content and rain-fall. Microwave sens...

2017-08-31

Altered Precipitation Seasonality Impacts The Dominant Fungal But rare Bacterial Taxa In Subtropical Forest Soils

Global precipitation patterns , including the amount , intensity , and timing of rainfall , have been changing in almost all regions of the world over the last decades .The subtropical forests in southern China are the largest C sink of the region , and they are projected to experience a decrease in the dry-season rainfall and an increase in the...
　　Global precipitation patterns, including the amount, intensity, and timing of rainfall, have been changing in almost all regions of the world over the last decades. The subtropical forests in southern China are the largest C sink of the region , and they are projected to experience a decrease in the dry-season rainfall and an increase in th...

2017-06-30

Integrated ecological economic evaluation of three typical rocky desertification control modes in karst areas of Guizhou Province, China

Guizhou Province of China is a key karst area and is facing serious rocky desertification .Chinese Academy of Sciences ) evaluated three modes ( planting systems ) and compared these modes with the planting of corn ( CP ) , a traditional crop in Zhenfeng county , Guizhou Province , cooperated with local government .Landscape of the three control...
　　Guizhou Province of China is a key karst area and is facing serious rocky desertification. Controlling the rocky desertification in karst areas in Guizhou has been formally established as a national goal. After decades of experience, some control modes are now recognized for their ability to reduce desertification and to provide income for ...

2017-06-30

Tropical forest restoration: fast resilience of plant biomass contrasts with slow recovery of stable soil C stocks

Tropical forest soils worldwide contain more carbon than the atmosphere but unfortunately , these soil carbon stocks are often reduced or depleted during deforestation and land-use change .Rapid tree growth in plantations or young secondary tropical forests can sequester large amounts of carbon but we know little about the recovery of soil carbo... Tropical forest soils worldwide contain more carbon than the atmosphere but unfortunately, these soil carbon stocks are often reduced or depleted during deforestation and land-use change. Rapid tree growth in plantations or young secondary tropical forests can sequester large amounts of carbon but we know little about the recovery of soil carbon...