Juan Liu^1,2,*, Meiqun Zheng¹, Xueshuang Chen¹

Phyton-International Journal of Experimental Botany, Vol.92, No.1, pp. 271-283, 2023, DOI:10.32604/phyton.2022.023397 - 06 September 2022

Abstract Chinese hickory (Carya cathayensis Sarg.) is a popular nut tree in China, but there is little information about the influences of fertilization on soil CO₂ efflux and soil microbial biomass. This study evaluated the short-term effects of different fertilizer applications on soil CO₂ efflux and soil microbial biomass in Chinese hickory stands. Four fertilizer treatments were established: control (CK, no fertilizer), inorganic fertilizer (IF), organic fertilizer (OF), and equal parts organic and inorganic N fertilizers (OIF). A field experiment was conducted to measure soil CO₂ effluxes using closed chamber and gas chromatography techniques. Regardless of the fertilization practices,… More >

Zhijie Tian^1,*, Xueying Jia², Tingting Liu¹, Eryan Ma¹, Lamei Xue¹, Yanqiu Hu¹, Qingrong Zheng¹

Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1543-1556, 2022, DOI:10.32604/phyton.2022.020329 - 14 March 2022

Abstract Soil respiration (Rs) plays an important role in regulating carbon cycle of terrestrial ecosystems and presents temporal and spatial heterogeneity. Abies nephrolepis is a tree species that prefers the cold and wet environment and is mainly distributed in Northeast Asia and East Asia. The Rs variations of Abies nephrolepis forests communities are generally environmental-sensitive and can effectively reflect the adaptive responses of forest ecosystems to climate change. In this study, the growing-seasonal variations of Rs, soil temperature, soil water content and soil properties of Abies nephrolepis forests were analyzed along an altitude gradient (2000, 2100, 2200 and 2300… More >