Publications by authors named "Lianyi Hao"
Introduction: The impact of groundwater table depth (GTD) on bacterial communities and soil nutrition in revegetated areas remains unclear.
Methods: We investigated the impacts of plant growth and soil physicochemical factors on rhizosphere bacterial communities under different GTD.
Results: The four plant growth indices (Pielou, Margalef, Simpson, and Shannon-Wiener indices) and soil water content (SWC) at the Artem and Salix sites all showed a decreasing trend with increasing GTD.
Clarifying the dependence of the grassland water budget change and its components on environmental factors is significant for the sustainable development of dryland ecosystems. Here, the Hydrus-1D model was used to simulate the water budget of natural grassland for 42 years (1980-2021). The standardized precipitation evapotranspiration index (SPEI) and soil moisture deficit index (SMDI) were used to analyze the soil drought evolution characteristics and the water use dynamic of the grassland in dry and wet years.
View Article and Find Full Text PDF[Influence of Precipitation Change on Soil Respiration in Desert Grassland].
Huan Jing Ke Xue
September 2021
Article Synopsis
- Global climate change has altered precipitation patterns, influencing soil respiration (SR), which is a key process in the carbon cycle and impacts atmospheric CO2 levels.
- A study in desert grasslands tested different precipitation levels (-40%, -20%, natural, +20%, +40%) to examine how these changes affected SR and its relationship with factors like soil moisture and temperature.
- Results indicated that SR increased with additional precipitation and was significantly influenced by year-to-year changes, showing stronger negative impacts from decreased precipitation than positive effects from increased precipitation.