. Author manuscript; available in PMC: 2022 May 28.

Published in final edited form as: J Adv Model Earth Syst. 2021 May 28;13(6):10.1029/2020ms002284. doi: 10.1029/2020ms002284

Table 11.

The Top 10 HUC8 Subbasins With the Greatest Increase Per Unit (Hectare of Land Area) of TSS, TN and TP at S2 (Baseline VS. Continuous Corn), S3 (Baseline VS. Corn/Soybean) and S4 (Baseline VS. Corn/Wheat) During 2008–2012

	TSS (t/ha)				TN (kg/ha)				TP (kg/ha)
HUC8^a	S2	S3	S4	HUC8^a	S2	S3	S4	HUC8^a	S2	S3	S4

10240009	1.51	1.61	0.62	10240009	3.09	3.18	1.30	10240009	0.77	0.65	0.35
10280102	1.43	1.58	0.66	10280102	2.58	2.69	1.19	10280102	0.74	0.59	0.38
10280101	1.24	1.36	0.51	10240007	2.42	2.35	0.87	10280101	0.64	0.49	0.30
10240007	1.08	1.21	0.36	10280101	2.16	2.13	0.91	10240007	0.61	0.54	0.24
10280201	0.85	0.94	0.40	10240012	2.09	2.07	0.84	10280201	0.54	0.40	0.26
10240012	0.84	0.90	0.34	10240010	2.06	2.17	0.88	10240012	0.52	0.42	0.23
10240010	0.77	0.78	0.34	10280201	1.99	1.94	0.78	10240013	0.51	0.44	0.24
10240013	0.73	0.70	0.26	10240013	1.92	1.81	0.68	10240010	0.50	0.43	0.23
10240008	0.62	0.67	0.24	10280103	1.26	1.22	0.53	10240008	0.35	0.28	0.16
10240006	0.53	0.58	0.24	10240008	1.22	1.13	0.49	10280103	0.32	0.25	0.16

Abbreviations: TN, total nitrogen; TP, total phosphorus; TSS, total suspended sediment.

All these HUC8 subbasins had land-use changes from grass to crop.