Influence of Disturbance on Soil Respiration in Biologically Crusted Soil during the Dry Season

Table 1

Physical and chemical characteristics of the study sites. Values are the mean ± standard error.

Crust type		SOC (%)	TNC (%)	SBD (g·cm^−3)	TP (%)	Particle content (<0.05 mm) (%)
Algae crust	HAC	0.34±0.13	0.02±0.01	1.69±0.10	36.98±1.40	6.16±1.14
	NAC	0.28±0.17	0.01±0.01	1.50±0.10	42.26±5.57	5.67±2.25
Lichen crust	HLC	1.33±0.09	0.07±0.01	1.60±0.03	39.62±1.10	8.43±1.41
	NLC	0.67±0.12	0.05±0.01	1.49±0.08	43.49±1.89	7.00±0.35
Moss crust	HMC	2.14±0.19	0.10±0.02	1.70±0.45	35.84±1.60	11.07±0.81
	NMC	1.07±0.12	0.09±0.01	1.20±0.01	54.72±0.52	8.37±1.71
Bare land		0.21±0.14	0.02±0.01	1.61±0.07	39.24±5.54	8.74±0.21

SOC: soil organic carbon; TNC: total nitrogen content; TP: total porosity. HMC, HLC, and HAC, respectively, represent high moss crusted soils, high lichen, and high algae crusted soil. NMC, NLC, and NAC, respectively, represent no moss, lichen, and algae crusted soils; SBD is soil bulk density.