Estimation of Populuseuphratica Forest Leaf Litterfall and Time Variation of Nutrient in Leaf Litter during Decomposition along the Main Channel of the Tarim River, China

Accurate determination of annual leaf litter amount constitutes the basis scientific nutrient release assessment. In this study, we tried to establish an equation between and relevant tree characteristics Populus euphratica (P. euphratica) on individual scale, find content variation within 760 d incubation experiment in main channel Tarim River, China. Results showed that there was no proper height or diameter at breast height. There great difference scale. The mean per 10.2, 14.83 kg/y obtained by field survey canopy area respectively. Leaf mass changed over time exhibited three phases: initial slow decomposition phase (0–173 d) with loss; a rapid loss (173–290 d); second (470–560 d). Overall, carbon (C) potassium (K) decreased, nitrogen (N) phosphorus (P) increased fluctuating manner P. litter.