Research Article
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).
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| Treatment | Runoff (m3 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 |
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*
| NS | NS | NS |
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NS: nonsignificantly different; ; ; ; for each variable, values with same letters are not significantly different.
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