Effects of drainage and long-term tillage on greenhouse gas fluxes in a natural wetland: insights from microbial mechanisms

Table 1 Soil properties of Wetland and Dryland in the Zhalong wetland in two layers

	Soil layers	pH	NO₃⁻-N (mg/kg)	NH₄⁺-N (mg/kg)	TN (g/kg)	TOC (g/kg)
Wetland	0–20 cm	8.15 ± 0.34b	2.76 ± 0.48c	5.86 ± 1.33b	2.06 ± 0.48b	48.94 ± 4.22a
Wetland	20–40 cm	8.23 ± 0.19b	2.52 ± 0.39c	3.59 ± 1.01 cd	1.44 ± 0.33b	44.43 ± 3.65b
Dryland	0–20 cm	8.50 ± 0.27a	8.07 ± 1.91a	6.91 ± 2.58a	8.49 ± 1.77a	34.22 ± 3.04c
Dryland	20–40 cm	8.47 ± 0.21a	7.11 ± 1.26b	4.78 ± 1.93c	8.04 ± 1.62a	33.86 ± 5.76c

Where data are represented as the mean (n = 14) ± standard error (S.E.) and values in each column followed by the different letter are significantly different at p < 0.05, symbolizing significant variation of soil properties at different times of the year. NO₃⁻-N, nitrate nitrogen; NH₄⁺-N, ammonium nitrogen; TN, total nitrogen; TOC, total organic carbon

ISSN: 2524-6372