Initial lignin content as an indicator for predicting leaf litter decomposition and the mixed effects of two perennial gramineous plants in a desert steppe: A 5‐year long‐term study

• DOI: 10.1002/ldr.3343
• Publication Date: 2019-05-10T05:28:29Z
• Authors: Hao Qu; Chengchen Pan; Xueyong Zhao; Jie Lian; Shaokun Wang; Xinyuan Wang; Xujun Ma; Liangxu Liu
• Keywords: Litter; Plant litter; Steppe

Abstract Leaf is the main component of litter that often exists in mixed forms nature. However, effects leaf decomposition desert ecosystems remain unclear. To reveal and influence quality on ecosystems, a 5‐year long‐term study was conducted to compare observed expected mass loss single‐species (equal proportions natural proportions) litters two typical perennial gramineous plants ( Stipa klemenzii Achnatherum splendens ) steppe Northern China. The relationship between qualities also analysed. results showed (a) after 5 years decomposition, losses S. were significantly higher than those equal A. litter; (b) different ratios varied with time, synergistic effect only appeared second year when an easily decomposed slowly decomposing ); (c) not correlated initial carbon or nitrogen content but negatively lignin content, had significant these plant litters. These can suggest indicator predicting low content.