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

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...

2017-05-09

The transcription factor MYB29 is a regulator of ALTERNATIVE OXIDASE1a

Plants sense and integrate a variety of signals from the environment through different interacting signal transduction pathwaysthat involve hormones and signaling molecules .Despite an enhanced induction ofmitochondrial stress response genes , rao7 / myb29 mutants displayed an increased sensitivity to combined moderate light and drought stress .... Plants sense and integrate a variety of signals from the environment through different interacting signal transduction pathwaysthat involve hormones and signaling molecules. Using ALTERNATIVE OXIDASE1a (AOX1a) gene expression as a model system of retrograde or stress signaling between mitochondria and the nucleus.
　　Dr. Zhang Xinhua, as a visi...

2017-04-28

Drought causes reduced growth of trembling aspen in western Canada

Adequate and advanced knowledge of the response of forest ecosystem to temperature-induced drought is critical for a comprehensive understanding of the impact of global climate change on forest ecosystem structure and function .They suggest that drought indices could be applied to monitoring the potential effects of increased drought stress on a... Adequate and advanced knowledge of the response of forest ecosystem to temperature-induced drought is critical for a comprehensive understanding of the impact of global climate change on forest ecosystem structure and function. Recent massive decline in aspen-dominated forests and an increased aspen mortality in boreal forests have been found as...

2017-04-11

Drought explains variation in the radial growth of white spruce in western Canada

Many studies have already addressed the existence of unstable and nonlinear relationships between radial growth of white spruce ( Picea glauca ) and climate variables in boreal forests along the high latitudes ( > 60 ° ？ N ) .The linear statistical methods indicated that the previous summer temperature imposed a strong negative impact on the r... Many studies have already addressed the existence of unstable and nonlinear relationships between radial growth of white spruce (Picea glauca) and climate variables in boreal forests along the high latitudes (>60°？N). However, along the mid-latitudes, the climate-growth relationship is still poorly understood.
　　In a recently published study...

2017-04-01

Comparison of two ontogenetic growth equations for animals and plants

Ontogenetic growth reflects the changes of biomass , height ( or body length ) of a biological organism as a function of time .They obtained the growth equations by integrating two time-dependent growth equations which were obtained by replacing temperature with time in two non-linear mathematical models that describe the temperature-dependent d... Ontogenetic growth reflects the changes of biomass, height (or body length) of a biological organism as a function of time. Many growth equations have been built but few can accurately predict the ending time of growth.
　　Professor Huang Jianguo (correspondence, Forest Ecology and Simulation Research Group, South China Botanical Garden, Chines...

2017-02-22

Phosphorus Fraction, Transformation and Regulation in Forested Soils

Assessing nutrient availability for ecosystem gross primary productivity of global forests especially complex diversified tropical and subtropical forests is a fundamental and crucial work .And soil P cycling remained active and even more efficient in the late successional old-growth forests than in the earlier pioneers because of remarkably hig... Assessing nutrient availability for ecosystem gross primary productivity of global forests especially complex diversified tropical and subtropical forests is a fundamental and crucial work. Analyses from forest succession showed that soil microorganisms and specific chemical processes may coordinate closely to maintain high levels of available o...