Crop Residue Biomass Effects on Agricultural Runoff

Table 1

Biomass effect on runoff, TSS, DOC, and TSS-C in the short (91 m long) field. Shown are means (standard error). 𝑛=3.

Treatment	Runoff; (m^3 ha^−1)	TSS export; (kg ha^−1)	DOC conc; (mg L^−1)	DOC export; (kg ha^−1)	DOC storage; (kg ha^−1)	TSS-C export; (kg ha^−1)
Control	3380 (30)	2298 (72)^a	4.3 (0.6)^e	12.9 (1.1)	−2.9 (1.1)	100 (17)
Low	3520 (1010)	789 (223)^b	6.0 (1.3)^de	16.0 (2.6)	−6.0 (2.6)	72 (35)
Medium	3370 (310)	628 (79)^b	9.3 (1.8)^d	18.6 (3.4)	−8.6 (3.4)	67 (16)
High	2770 (390)	419 (145)^b	9.5 (1.7)^d	15.4 (1.8)	−5.4 (1.8)	41 (12)
	NS	***	*	NS	NS	NS

NS: nonsignificantly different; ^∗𝑃<0.1; ^∗∗𝑃<0.01; ^∗∗∗𝑃<0.001; for each variable, values with same letters are not significantly different.