Leaf litter chemistry and its effects on soil microorganisms in different ages of Zanthoxylum planispinum var. Dintanensis

Table 4 Correlations for leaf litter chemistry

Indicator	Organic carbon	Total nitrogen	Total phosphorus	Total potassium	Soluble sugars	Starch	Lignin	Cellulose	Hemicellulose	Total phenol	Tannins	Lignin/nitrogen ratio	Lignin/phosphorus ratio	Nitrogen/phosphorus ratio	Carbon/nitrogen ratio
Total nitrogen	−0.506
Total phosphorus	−0.330	0.495
Total potassium	0.481	0.392	−0.160
Soluble sugars	0.545	−0.433	−0.571	0.007
Starch	0.212	−0.267	−0.162	0.204	−0.341
Lignin	−0.332	0.917**	0.340	0.589	−0.456	−0.018
Cellulose	−0.060	0.053	−0.685	0.342	0.116	0.434	0.291
Hemicellulose	0.226	0.042	−0.637	0.313	0.773*	−0.308	0.079	0.562
Total phenol	0.450	−0.139	−0.544	0.546	0.210	0.314	0.236	0.651	0.412
Tannins	0.104	0.400	−0.211	0.718*	−0.236	0.266	0.701	0.566	0.164	0.770*
Lignin/nitrogen ratio	−0.179	0.754*	0.181	0.667	−0.430	0.207	0.952**	0.466	0.102	0.483	0.839**
Lignin/phosphorus ratio	0.031	0.285	−0.679	0.597	0.246	0.067	0.440	0.838**	0.714*	0.586	0.664	0.515
Nitrogen/phosphorus ratio	0.123	−0.069	−0.883**	0.325	0.525	−0.040	−0.002	0.724*	0.784*	0.407	0.305	0.055	0.884**
Carbon/nitrogen ratio	0.661	−0.980**	−0.488	−0.249	0.513	0.255	−0.868**	−0.070	0.025	0.232	−0.327	−0.692	−0.257	0.068
Carbon/phosphorus ratio	0.335	−0.423	−0.977**	0.182	0.664	0.055	−0.330	0.630	0.721*	0.430	0.132	−0.218	0.700	0.931**	0.424

ISSN: 1471-2229