Appendix C

Table 1-1: Methane Emissions From Domesticated Animals

	Methane Emissions Factor (lbs CH4/Head)	1990 Population	Emissions (tons of CH4)	1992 Population	Emissions (tons of CH4)	1996 Population	Emissions (tons of CH4)	1997 Population	Emissions (tons of CH4)
Cattle
Dairy:
-Replacement 0-12 Months old	42.9	1400	30.0	1500	32.2	1600	34.3	1200	25.7
-Replacement 12-24 Months old	128.5	1300	83.5	1100	70.7	1000	64.3	900	57.8
-Mature cows that have calved	277.4	2600	360.6	2400	332.9	2200	305.1	2000	277.4
Beef:
-Replacement 0-12 Months old	42.2	3500	73.9	3500	73.9	3500	73.9	3500	73.9
-Replacement 12-24 Months old	140.4	300	21.1	200	14.0	700	49.1	500	35.1
-Mature cows that have calved	135.3	1100	74.4	1300	87.9	1500	101.5	1500	101.5
Sheep	17.6	1471	12.9	1355	11.9	1122	9.9	1064	9.4
Goats	11	231	1.3	250	1.4	289	1.6	298	1.6
Swine	3.3	5300	8.7	5488	9.1	3000	5.0	2764	4.6
Horses	39.6	974	19.3	1015	20.1	1096	21.7	1117	22.1
Mules/Asses	48.5	25	0.6	26	0.6	28	0.7	29	0.7
TOTAL		18,201	686	18,134	655	16,035	667	14,872	610
METRIC TONS C EQUIV.			3,566		3,401		3,465		3,168

Methane Emissions Factor

Unit: (lbs. CH₄/Head)

Source: Workbook

Population Values

Unit: Head

Sources: All cattle values from the National Agricultural Statistics Service (NASS).

The values for goats, sheep, horses, and mules and asses were from the 1996 and 1998 National Agricultural Statistics Service censuses and were interpolated between the years 1992 and 1997. For the purpose of interpolating the populations, it was assumed that they changed linearly over time.

Emissions (Tons of CH₄)

Methane Emission Factors x Population Values

Table 2-1 Methane Emissions from Manure Management


Data	1990	1992	1996	1997
Cattle
Dairy:
-Replacement 0-12 Months old	20.7	22.2	23.7	17.8
-Replacement 12-24 Months old	30.1	25.5	23.2	20.8
-Mature cows that have calved	60.2	55.6	50.9	46.3
Beef:
-Replacement 0-12 Months old	2.0	2.0	2.0	2.0
-Replacement 12-24 Months old	0.3	0.2	0.8	0.6
-Mature cows that have calved	1.8	2.1	2.4	2.4
Sheep	0.5	0.4	0.4	0.3
Goats	0.1	0.1	0.1	0.1
Swine	28.4	29.5	16.1	14.8
Horses	2.0	2.1	2.2	2.3
Mules/Asses	0.1	0.1	0.1	0.1

Total (Tons)	146	140	122	107
Total in MTCE	762	728	635	560

Table 2-1- Methane Emissions from Manure Management

The totals from each animal type from Tables 2-3 to 2-12. The conversion from tons to Metric Tons of Carbon Equivalent is:

Tons of Methane x 0.091 x (12/44) x 21

Table 2-2 1996 and 1997 Maximum Potential Methane Emissions from Manure Management

DATA TYPE	Volatile Solids	Maximum methane Production Capacity	1996 Population (Head)	Mass	Total Volatile Solids	Methane Producing Capacity	1997 Population (Head)	Mass	Total Volatile Solids	Methane Producing Capacity
Cattle
Dairy:
-Replacement 0-12 Months old	3.65	3.84	1600	1444800	5273520	20250317	1200	1083600	3955140	15187738
-Replacement 12-24 Months old	3.65	3.84	1000	1411000	5150150	19776576	900	1269900	4635135	17798918
-Mature cows that have calved	3.65	3.84	2200	3104200	11330330	43508467	2000	2822000	10300300	39553152
Beef:
-Replacement 0-12 Months old	2.6	2.72	3500	1389500	3612700	9826544	3500	1389500	3612700	9826544
-Replacement 12-24 Months old	2.6	2.72	700	555800	1445080	3930618	500	397000	1032200	2807584
-Mature cows that have calved	2.6	2.72	1500	1653000	4297800	11690016	1500	1653000	4297800	11690016
Buffalo
Sheep	3.36	3.04	1122	172788	580568	1764926	1064	163856	550556	1673691
Goats	3.48	2.72	289	40749	141807	385714	298	42018	146223	397726
Swine	3.1	7.33	3000	303000	939300	6885069	2764	279164	865408	6343444
Horses	3.65	2.72	1096	1087232	3968397	10794039	1117	1108064	4044434	11000859
Mules/Asses	3.65	5.29	28	27776	101382	536313	29	28768	105003	555467

Table 2-2 1990 and 1992 Maximum Potential Methane Emissions from Manure Management

DATA TYPE	Volatile Solids	Maximum methane Production Capacity	Typical Animal Mass	1990 Population (Head)	Mass	Total Volatile Solids	Maximum Potential Methane Emissions	1992 Population (Head)	Mass	Total Volatile Solids	Methane Producing Capacity
Cattle
Dairy:
-Replacement 0-12 Months old	3.65	3.84	903	1400	1264200	4614330	17719027	1500	1354500	4943925	18984672
-Replacement 12-24 Months old	3.65	3.84	1411	1300	1834300	6695195	25709549	1100	1552100	5665165	21754234
-Mature cows that have calved	3.65	3.84	1411	2600	3668600	13390390	51419098	2400	3386400	12360360	47463782
Beef:
-Replacement 0-12 Months old	2.6	2.72	397	3500	1389500	3612700	9826544	3500	1389500	3612700	9826544
-Replacement 12-24 Months old	2.6	2.72	794	300	238200	619320	1684550	200	158800	412880	1123034
-Mature cows that have calved	2.6	2.72	1102	1100	1212200	3151720	8572678	1300	1432600	3724760	10131347
Buffalo
Sheep	3.36	3.04	154	1471	226534	761154	2313909	1355	208670	701131	2131439
Goats	3.48	2.72	141	234	32994	114819	312308	250	35250	122670	333662
Swine	3.1	7.33	101	5300	535300	1659430	12163622	5488	554288	1718293	12595086
Horses	3.65	2.72	992	974	966208	3526659	9592513	1015	1006880	3675112	9996305
Mules/Asses	3.65	5.29	992	25	24800	90520	478851	26	25792	94141	498005

Table 2-2 – Maximum Potential Methane Emissions

Volatile Solids Production

Unit: lbs VS/lbs of animal mass/ year

Source: Workbook

Maximum Methane Production Capacity

Unit: cf CH₄/ lbs VS

Source: Workbook

Typical Animal Mass

Unit: lbs

Source: Workbook

Population

Unit: Head

Sources:

All Cattle Values from the National Agricultural Statistics Service

The values for goats, sheep, horses, and mules and asses were from the 1996 and 1998 National Agricultural Statistics Service censuses and were interpolated between the years 1992 and 1997. For the purpose of interpolating the populations, it was assumed that they changed linearly over time.

Mass

Unit: lbs

Source: Typical Animal Mass x Population

Total Volatile Solids

Unit: lbs VS

Source: Mass x Volatile Solids Production

Maximum Potential Methane Emissions

Unit: cf CH₄

Source: Volatile Solids Production x Maximum Methane Production Capacity

Table 2-3 Dairy: Replacement 0-12 Months Old

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	0.0%	0	0	0	0	0	0	0	0
Daily Spread	0.2%	58.0%	20554	849	22022	910	23490	970	17618	728
Solid Storage	1.0%	13.0%	23035	951	24680	1019	26325	1087	19744	815
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	29.0%	960903	39685	1029539	42520	1098175	45355	823631	34016
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	21	Total Emissions Tons 1992	22	Total Emissions Tons 1996	24	Total Emissions Tons 1997	18

Table 2-4 Dairy Replacement 12-24 months old

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	0.0%	0	0	0	0	0	0	0	0
Daily Spread	0.2%	58.0%	29823	1232	25235	1042	22941	947	20647	853
Solid Storage	1.0%	13.0%	33422	1380	28281	1168	25710	1062	23139	956
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	29.0%	1394229	57582	1179732	48723	1072484	44294	965235	39864
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	30	Total Emissions Tons 1992	25	Total Emissions Tons 1996	23	Total Emissions Tons 1997	21

Table 2-5 Dairy Mature Cows that have Calved

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	0.0%	0	0	0	0	0	0	0	0
Daily Spread	0.2%	58.0%	59646	2463	55058	2274	50470	2084	45882	1895
Solid Storage	1.0%	13.0%	66845	2761	61703	2548	56561	2336	51419	2124
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	29.0%	2788458	115163	2573961	106305	2359464	97446	2144967	88587
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	60	Total Emissions Tons 1992	56	Total Emissions Tons 1996	51	Total Emissions Tons 1997	46

Table 2-6 Beef Replacement Cows 0-12 months old

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	100.0%	98265	4058	98265	4058	98265	4058	98265	4058
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	2.0	Total Emissions Tons 1992	2.0	Total Emissions Tons 1996	2.0	Total Emissions Tons 1997	2.0

Table 2-7 Beef Replacement Cows 12-24 months old

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	100.0%	16846	696	11230	464	39306	1623	28076	1160
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	0.3	Total Emissions Tons 1992	0.2	Total Emissions Tons 1996	0.8	Total Emissions Tons 1997	0.6

Table 2-8 Mature Beef Cows

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	100.0%	85727	3541	101313	4184	116900	4828	116900	4828
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	1.8	Total Emissions Tons 1992	2.1	Total Emissions Tons 1996	2.4	Total Emissions Tons 1997	2.4

Table 2-8 Sheep

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	100.0%	23139	956	21314	880	17649	729	16737	691
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	0.5	Total Emissions Tons 1992	0.4	Total Emissions Tons 1996	0.4	Total Emissions Tons 1997	0.3

Table 2-10 Goats

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	100.0%	3123	129	3337	138	3857	159	3977	164
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	0.1	Total Emissions Tons 1992	0.1	Total Emissions Tons 1996	0.1	Total Emissions Tons 1997	0.1

Table 2-11 Swine

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	0.0%	0	0	0	0	0	0	0	0
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	53.0%	70914	2929	73429	3033	40140	1658	36982	1527
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	0.0%	0	0	0	0	0	0	0	0
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	3.0%	328418	13564	340067	14045	185897	7678	171273	7074
Pit Storage <1 mo	9.4%	2.0%	22746	939	23553	973	12875	532	11862	490
Pit Storage >1 mo	18.7%	42.0%	955331	39455	989218	40855	540753	22333	498214	20576
			Total Emissions Tons 1990	28	Total Emissions Tons 1992	29	Total Emissions Tons 1996	16	Total Emissions Tons 1997	15

Table 2-12 Horses

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	65.0%	62351	2575	64976	2684	70161	2898	71506	2953
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	35.0%	33574	1387	34987	1445	37779	1560	38503	1590
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	2.0	Total Emissions Tons 1992	2.1	Total Emissions Tons 1996	2.2	Total Emissions Tons 1997	2.3

Table 2-13 Mules and Asses

Manure System	Methane Conversion Factor	Waste System Usage	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)	Methane Emissions (Cubic Ft)	Methane Emissions (Pounds)
Pasture/Range	1.0%	65.0%	3113	129	3237	134	3486	144	3611	149
Daily Spread	0.2%	0.0%	0	0	0	0	0	0	0	0
Solid Storage	1.0%	0.0%	0	0	0	0	0	0	0	0
Drylot	1.1%	0.0%	0	0	0	0	0	0	0	0
Deep Pit Stacks	10.0%	0.0%	0	0	0	0	0	0	0	0
Litter	10.0%	0.0%	0	0	0	0	0	0	0	0
Paddock	1.0%	35.0%	1676	69	1743	72	1877	78	1944	80
Liquid/Slurry	18.7%	0.0%	0	0	0	0	0	0	0	0
Anaerobic Lagoon	90.0%	0.0%	0	0	0	0	0	0	0	0
Pit Storage <1 mo	9.4%	0.0%	0	0	0	0	0	0	0	0
Pit Storage >1 mo	18.7%	0.0%	0	0	0	0	0	0	0	0
			Total Emissions Tons 1990	0.10	Total Emissions Tons 1992	0.10	Total Emissions Tons 1996	0.11	Total Emissions Tons 1997	0.11

Tables 2-3 through 2-12: Methane Emissions for Specific Animals

Methane Conversion Factor %

Source: Workbook

Waste System Usage %

Source: Workbook (The Workbook contained state level data for waste system usage.)

Methane Emissions (Cubic Feet)

Source: Methane Conversion Factor x Waste System Usage x Maximum Potential Emissions (from Table 2-2)

Methane Emissions (Pounds)

Source: Methane Emissions (Cubic Feet) x 0.0413 lbs/ft³

Table 2-14 Methane Emissions from Manure Management
Data	1990	1992	1996	1997
_Cattle
_Dairy:
_{-Replacement 0-12 Months old}	20.7	22.2	23.7	17.8
_{-Replacement 12-24 Months old}	30.1	25.5	23.2	20.8
_{-Mature cows that have calved}	60.2	55.6	50.9	46.3
_Beef:
_{-Replacement 0-12 Months old}	2.0	2.0	2.0	2.0
_{-Replacement 12-24 Months old}	0.3	0.2	0.8	0.6
_{-Mature cows that have calved}	1.8	2.1	2.4	2.4
_Sheep	0.5	0.4	0.4	0.3
_Goats	0.1	0.1	0.1	0.1
_Swine	28.4	29.5	16.1	14.8
_Horses	2.0	2.1	2.2	2.3
_Mules/Asses	0.1	0.1	0.1	0.1

Total (Tons)	146	140	122	107
Total in MTCE	762	728	635	560

Table 3-1 Emissions from Agricultural Soils

Emissions Source

1990

1996

Unit

Synthetic Fertilizer

1,973,126

1,522,255

kg N/yr

Synthetic Fertilizer (kg N2O)

29,992

23,138

kg N2O/yr

Organic Fertilizer

NA

NA

Manure Spread

241,013

214,125

kg N/yr

Manure Spread (kg N2O)

3,013

2,677

kg N2O/yr

Crop Residue

NA

NA

Nitrogen Fixing Crops

NA

NA

High Organic Soils

NA

NA

Lime Use

NA

NA

Direct from Animal Production

5,184

6,026

kg N/yr

Direct from Animal Production

65

75

Indirect from N Applied to Soils

NA

NA

Total Emissions From Soils

2,796

2,189

MTCE

Emissions From Lime

NA

NA

Table 3-1 Emissions from Agricultural Soils

Synthetic Fertilizer (kg N/yr)

Source: Fertilizer Institute: "Fertilizer Consumption By State" The 1996 report is located at http://www.tfi.org/, and the 1990 report received via fax on December 22, 1999.

Manure Spread (kg N/yr) & Direct From Animal Production

See Table 3-2

Organic Fertilizer, Nitrogen Fixing Crops, Crop Residue, High Organic Soils, Lime Use, and Indirect Nitrogen Applied to Soil

There was insufficient data to estimate any of these sources or sinks of nitrogen. The information was not available at RIDEM's Division of Agriculture, and was not included in 1997 Census of Agriculture Rhode Island Sate and County Data, or New England Agricultural Statistics 1998 or in NASS reports.

Table 3-2: Emissions from Manure Spread 1990

_{DATA TYPE}

Average TAM

Total Kjeldahl

% Daily Spread

% Deposited in Pasture, Range or Paddock

1990 Animal Population

Manure Spread kg of unvolatized N

Direct N From Animals

Cattle

Dairy:

-Replacement 0-12 Months old

476

0.45

58%

0%

1400

50788

0

-Replacement 12-24 Months old

640

0.45

58%

0%

1300

63408

0

-Mature cows that have calved

640

0.45

58%

0%

2600

126817

0

Beef:

0

-Replacement 0-12 Months old

391

0.34

0%

100%

3500

0

2717

-Replacement 12-24 Months old

500

0.34

0%

100%

300

0

298

-Mature cows that have calved

500

0.34

0%

100%

1100

0

1092

Sheep

70

0.42

0%

100%

1471

0

253

Goats

64

0.42

0%

100%

234

0

37

Swine

46

0.52

0%

0%

5300

0

0

Horses

450

0.3

0%

100%

974

0

768

Mules/Asses

450

0.3

0%

100%

25

0

20

Totals 1990

241012.8

5184.123

Table 3-2: Emissions from Manure Spread 1996

DATA TYPE	Average TAM	Total Kjeldahl	% Daily Spread	% Deposited in Pasture, Range or Paddock	1996 Animal Population	Manure Spread kg of unvolatized N	Direct N From Animals
Cattle
Dairy:
-Replacement 0-12 Months old	476	0.45	58%	0%	1600	58043.1	0
-Replacement 12-24 Months old	640	0.45	58%	0%	1000	48775.7	0
-Mature cows that have calved	640	0.45	58%	0%	2200	107306	0
Beef:							0
-Replacement 0-12 Months old	391	0.34	0%	100%	3500	0	2717.29
-Replacement 12-24 Months old	500	0.34	0%	100%	700	0	694.96
-Mature cows that have calved	500	0.34	0%	100%	1500	0	1489.2
Sheep	70	0.42	0%	100%	1122	0	192.643
Goats	64	0.42	0%	100%	289	0	45.367
Swine	46	0.52	0%	0%	3000	0	0
Horses	450	0.3	0%	100%	1096	0	864.086
Mules/Asses	450	0.3	0%	100%	28	0	22.0752
					Totals	214125	6025.63

Table 3-2 Emissions from Manure Spread

Average TAM (typical animal mass)

Unit: kg

Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 9

Total Kjeldahl Nitrogen

Units: (kg/day/1000 kg of mass)

Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 9

% Daily Spread & % Deposited in Pasture

Source: Workbook

Animal Population

Units: Head

Sources: All Cattle Values from the National Agricultural Statistics Service

The values for goats, sheep, horses, and mules and asses were from the 1996 and 1998 National Agricultural Statistics Service censuses and were interpolated between the years 1992 and 1997. For the purpose of interpolating the populations, it was assumed that they changed linearly over time.

Manure Spread kg of unvolatized N

Units kg N

Sources: Animal Population x % Daily Spread x (Average TAM/1000) x Total Kjeldahl x 365 days x 0.8

Direct N from Animals

Units kg N

Sources: Animal Population x % Deposited in Pasture x (Average TAM/1000) x Total Kjeldahl x 365 days x 0.8