Appendix B
Crop-wise estimates of rainfed arable land and production potential in Kenya -
assumption set A

The calculation procedures outlined in Chapter 3 have been performed for all crop types, pastures and fuelwood species in all agro-ecological cells of Kenya, altogether more than 90000 land units. As a result, we determine the extent and quality of arable land and production potential of each crop type in all locations. The information is then aggregated to district level, province level and national total. The results are also aggregated over crop types to indicate production potential of crop species, i.e. arable land and production potential for maize rather than nine individual maize types considered in the study.

Three sets of results are presented in this report, in Appendix B to D. The first set, Assumption Set A included here, refers to single crop suitability and production potential on all lands that are not indicated as forest zone, game park, or belong to an irrigation scheme.

Six suitability classes have been defined relating average single-crop suitability in a cell to maximum attainable yield. The classes C1 to C5 relate to average attainable yields of >80 %, 60–80%, 40–60%, 20–40%, and 5–20% compared to maximum agro-climatic yields. Note that extents in suitability class C5 are usually not considered among the viable crop options, but have been included here to indicate the scope of production in very marginal areas. A sixth suitability class accounts for areas that are entirely unsuitable or allow only for less than 5 percent of maximum yield. Data for this non-suitable class are not explicitly included in the result tables.

Production potential is calculated from land extents in suitability classes C1 to C4 only. Average, minimum and maximum production potential and yields are determined according to the LGP-Pattern and associated probabilities. The columns are labeled AVG, MIN and MAX, respectively. Multiple land use in time, sequential multi-cropping, is indicated by means of a multi-cropping index (MCI). Note, however, that MCI is always equals one in Set A due to the very nature of the assumptions underlying this set (single crop suitability assessment).

Each table shows an estimate of arable land by productivity class. The algorithm used to determine rainfed arable extents in an agro-ecological cell comprises of a two stage procedure. In a first step, the crop that performs best under worst climatic (according to LGP-Pattern) conditions is determined. Then all crops which meet the production stability constraint, i.e. fall within a tolerable neighborhood of the best performing crop, are considered in the final selection. Finally, among all qualifying crops, the crop type that maximizes the weighted sum of extents in land suitability classes C1 to C4 is selected as describing the cell's arable land potential.

The estimates of arable land have been grouped according to four broad climatic zones: the arid zone, areas inventoried with mean total dominant length of growing periods less than 120 days, the semi-arid zones comprising of areas with LGPs of 120 to 179 days, the sub-humid zone referring to LGPs in the range of 180 to 270 days, and a humid zone where growing periods exceed 270 days. For information, the sum total of all land resources inventory records processed is included in the table. Total arable land is then expressed as percentage of total zone area as a relative measure of quality of land.

NATIONAL TOTAL: KENYA (Assumption Set A)

Page: C001

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	287	1685	6479	8451	16231	24682	423321	2.0
2	SEMIARID	993	2327	6988	8009	18318	14146	32464	67536	27.1
3	SUBHUMID	3412	4632	5649	5337	19030	4809	23839	37538	50.7
4	HUMID	3543	7772	6452	7246	25013	5167	30180	46427	53.9
	TOTAL	7948	15018	20775	27071	70812	40353	111165	574823	12.3

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	3902	5984	6009	14348	30243	16004	2095	4254	6229	693	1407	2060	1.00
2	MAIZEE	3755	5271	10123	20413	39563	39625	4639	8518	12022	1173	2153	3039	1.00
3	CATS	1109	3475	8568	10364	23517	19351	1246	2736	4099	530	1163	1743	1.00
4	MILLET	1528	4010	9438	20793	35769	31422	1883	2971	3447	526	831	964	1.00
5	RICE	133	716	1571	8463	10883	18822	962	1376	1756	884	1265	1613	1.00
6	SORGH	3345	6130	8522	20755	38752	45419	2702	5319	7509	697	1373	1938	1.00
7	WHEAT	2266	5175	4699	12620	24759	17359	1513	3698	5931	611	1494	2396	1.00
8	COWPEAA	674	647	3018	8440	12779	13277	509	876	1176	399	685	920	1.00
9	GRAM	173	1625	3287	6993	12078	33649	399	740	989	330	613	819	1.00
10	GRNDNT	672	723	2910	8777	13081	12800	823	1425	1965	630	1090	1502	1.00
11	BEANS	4262	5819	7000	12193	29274	16711	1373	2483	3564	469	848	1218	1.00
12	PIGPEA	2054	1162	3748	9086	16050	8895	855	1668	2235	533	1040	1392	1.00
13	SOYBEANANN	598	1040	2569	8654	12861	13624	500	940	1317	389	731	1024	1.00
14	CASSAVAVAA	884	2285	3087	7385	13641	17312	12780	14270	14862	9369	10461	10895	1.00
15	SW.POT	896	1280	2191	6427	10795	13670	4725	7838	10212	4377	7261	9460	1.00
16	WH.POT	1832	4202	7115	9917	23065	18096	9341	19855	30742	4050	8608	13328	1.00
17	BANANA	0	149	635	5109	5892	5003	3957	4263	5047	6715	7234	8565	1.00
18	OIL PALM	0	24	71	419	514	609	31	59	67	601	1143	1311	1.00
19	SUGCANEE	75	593	2024	6471	9163	11867	21470	23973	24991	23430	26162	27273	1.00
20	COFFEE	1903	3571	3094	7217	15784	11290
21	COTTON	53	185	1102	3911	5251	4828
22	PINEAPP	117	463	2069	2066	4716	144
23	PYRETH	1689	5958	7719	9186	24552	3337
24	SISAL	535	2051	5010	9363	16958	19501
25	TEA	1646	6279	7376	8571	23871	7161
26	FUELW1	3974	26315	22786	37923	90997	50669	36283	40185	42050	3987	4416	4621	1.00
27	FUELW2	8040	21608	19881	24639	74167	61648	69480	74856	77619	9368	10093	10465	1.00
28	GRASS	12138	18715	13178	34039	78070	164781	38113	42737	44422	4882	5474	5690	1.00

PROVINCE TOTAL: (1) Central Province (Assumption Set A)

Page: P001

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	0	0	0	0	0	0	11	0.
2	SEMIARID	34	15	83	302	434	310	744	1267	34.3
3	SUBHUMID	583	1526	706	686	3501	495	3997	5448	64.3
4	HUMID	16S	1523	653	431	2775	300	3075	6500	42.7
	TOTAL	785	3064	1443	1418	6711	1106	7816	13226	50.7

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	662	2753	1137	1623	6175	839	489	1026	1358	792	1662	2200	1.00
2	MAIZE	286	1332	1696	1013	4326	754	544	1167	1421	1258	2697	3285	1.00
3	OATS	98	1199	2933	1045	5275	1599	306	695	941	581	1317	1783	1.00
4	MILLET	0	21	288	867	1176	370	71	88	94	600	748	798	1.00
5	RICE	0	0	5	31	36	1238	3	4	4	888	1012	1053	1.00
6	SORGH	413	1436	1215	1050	4114	644	314	756	921	762	1838	2238	1.00
7	WHEAT	158	2629	1052	1211	5050	1668	308	887	1234	609	1756	2444	1.00
8	COWPEAA	0	0	122	336	458	897	14	29	34	303	626	736	1.00
9	GRAM	0	0	7	167	174	1193	4	7	8	217	393	452	1.00
10	GRNDNT	0	0	129	435	564	783	28	53	62	504	948	1099	1.00
11	BEANS	421	2408	1545	1368	5742	1183	243	536	687	424	933	1196	1.00
12	PIGPEA	130	98	110	1938	2277	788	62	180	221	271	790	972	1.00
13	SOYBEANANN	0	0	129	433	562	793	17	38	45	298	679	809	1.00
14	CASSAVAVAA	0	135	266	645	1045	2879	914	988	1014	8743	9459	9702	1.00
15	SW.POT	0	130	100	388	618	2361	171	374	442	2766	6052	7158	1.00
16	WH.POT	227	1840	1512	1533	5112	1541	1917	4705	6392	3749	9205	12504	1.00
17	BANANA	0	0	0	150	150	29	75	76	77	4995	5031	5155	1.00
19	SUGCANEE	0	0	15	162	177	2076	242	391	440	13677	22058	24852	1.00
20	COFFEE	2	891	807	311	2010	1612
21	COTTON	0	0	0	233	233	1
23	PYRETH	60	1391	1057	2099	4607	722
24	SISAL	0	126	862	304	1292	2985
25	TEA	123	1545	1401	719	3789	644
26	FUELW1	123	5518	1594	840	8075	283	4792	4891	4932	5934	6057	6108	1.00
27	FUELW2	896	4223	1882	944	7944	336	9676	9948	10063	12179	12522	12667	1.00
28	GRASS	2530	2968	1072	1338	7908	1127	5570	5792	5867	7043	7324	7420	1.00

PROVINCE TOTAL: (2) Central Province (Assumption Set A)

Page: P002

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	104	1178	1589	2871	4462	7333	66067	4.3
2	SEMIARID	109	882	2217	1899	5107	4249	9357	13791	37.0
3	SUBHUMID	36	309	869	1390	2604	716	3319	4385	59.4
4	HUMID	0	10	5	18	33	12	45	46	72.0
	TOTAL	145	1305	4269	4897	10615	9439	20054	84289	12.6

Potential Crop Production

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	5	19	17	138	179	95	12	18	21	684	990	1196	1.00
2	MAIZEE	24	398	1076	3811	5310	10107	286	626	967	539	1179	1821	1.00
3	OATS	0	14	11	28	53	176	3	6	7	590	1104	1341	1.00
4	MILLET	408	1990	3812	5108	11319	7784	541	1024	1219	478	904	1077	1.00
5	RICE	6	108	75	1367	1556	6967	83	144	210	535	925	1349	1.00
6	SORGH	99	528	1871	5595	8093	8484	325	688	969	402	850	1197	1.00
7	MEAT	0	23	15	63	102	135	6	11	14	591	1121	1418	1.00
8	COWPEAA	7	210	782	2863	3863	3618	101	222	353	261	574	914	1.00
9	GRAM	72	518	1996	3786	6373	6470	162	380	547	254	597	858	1.00
10	GRNDNTT	7	263	981	3401	4653	3218	212	429	682	456	923	1466	1.00
11	BEANS	4	32	75	117	228	251	10	15	20	449	638	871	1.00
12	PIGPEA	0	12	73	499	584	1184	14	40	69	233	692	1175	1.00
13	SOYBEANANN	20	342	903	3387	4652	2995	121	287	472	261	616	1015	1.00
14	CASSAVAVAA	15	226	592	1199	2032	2359	1341	1848	2017	6600	9090	9924	1.00
15	SW.POT	0	62	338	858	1258	497	238	663	1057	1893	5273	8403	1.00
16	WH.POT	0	18	21	57	96	151	38	68	84	3979	7067	8709	1.00
19	SUGCANEE	0	0	0	31	31	652	22	72	97	7135	23612	31761	1.00
20	COFFEE	0	3	5	58	66	48
21	COTTON	0	0	21	158	179	55
23	PYRETH	0	7	7	10	23	80
24	SISAL	0	427	757	2412	3596	1957
25	TEA	0	0	19	-61	80	36
26	FUELW1	32	347	2877	7036	10292	13256	1923		3261	1869	2748	3168	1.00
27	FUELW2	22	757	3267	4621	8668	14585	3371	4929	5645	3889	5687	6512	1.00
28	GRASS	0	243	1418	6560	8221	33107	2109	2887	3174	2565	3512	3861	1.00

PROVINCE TOTAL: (3) Eastern Province (Assumption Set A)

Page: P003

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	0	15	2363	2378	5509	7887	119169	2.0
2	SEMIARID	237	625	3454	5019	9336	7720	17056	26163	35.7
3	SUBHUMID	675	808	752	907	3143	336	3478	5263	597
4	HUMID	656	341	153	25	1176	70	1246	2919	40.3
	TOTAL	1568	1775	4375	8314	16032	13634	29667	153515	10.4

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEY	572	370	1049	1130	3121	1008	349	459	529	1117	1470	1694	1.00
2	MAIZEE	1020	1026	883	2173	5101	18016	780	1106	1335	1528	2169	2617	1.00
3	OATS	143	390	500	742	1775	2270	159	213	247	896	1200	1392	1.00
4	MILLET	712	1042	4084	10127	15965	11119	888	1194	1310	556	748	820	1.00
5	RICE	2	74	133	953	1162	3931	107	139	177	921	1194	1520	1.00
6	SORGH	1186	1229	1606	1917	5938	19714	640	919	1092	1078	1548	1839	1.00
7	WHEAT	248	306	272	706	1532	2115	162	248	310	1054	1617	2026	1.00
8	COWPEA	349	178	651	1916	3096	2246	157	235	282	507	760	909	1.00
9	GRAM	44	686	726	1107	2564	17387	125	180	212	488	704	827	1.00
10	GRNDNT	349	184	678	1951	3163	2559	259	390	469	818	1235	1482	1.00
11	BEANS	687	739	554	1608	3589	1646	216	308	382	603	860	1064	1.00
12	PIGPEA	703	274	477	776	2230	436	166	289	345	744	1297	1546	1.00
13	SOYBEANAN	405	286	577	1918	3187	2307	171	270	330	536	849	1035	1.00
14	CASSAVA	352	471	730	1135	2688	2948	3195	3349	3427	11884	12459	12750	1.00
15	SWPOT	495	309	558	463	1825	777	1231	1820	2089	6743	9971	11444	1.00
16	WHPOT	208	379	501	653	1742	2453	897	1419	1846	5153	8147	10600	1.00
17	BANAN	0	55	28	155	237	59	158	205	230	6644	8663	9688	1.00
18	OILPAL	0	24	54	173	251	0	19	32	36	758	1278	1452	1.00
19	SUGCA	72	160	107	666	1005	1317	2588	3131	3343	25753	31157	33269	1.00
20	COFFEE	165	388	174	523	1249	87
21	COTTO	48	81	359	556	1044	47
22	PINEAP	24	31	2	72	129	18
23	PYRETH	2	35	129	600	766	173
24	SISAL	274	569	1422	2012	4277	2218
25	TEA	236	390	152	544	1322	67
26	FUELW1	53	2703	6715	15520	24991	11355	5959	7241	7772	2385	2898	3110	1.00
27	FUELW2	549	2078	3562	9317	15506	19245	9881	10917	11331	6372	7040	7308	1.00
28	GRASS	1346	1212	1453	10206	14217	39067	5258	5932	6205	3698	4173	4364	1.00

PROVINCE TOTAL: (4) Nairobi Area (Assumption Set A)

Page: P004

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
2	SEMIARID	0	0	33	1	34	26	60	416	8.2
3	SUBHUMID	42	11	3	11	67	28	95	245	27.6
	TOTAL	42	11	36	12	102	54	155	661	15.4

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	42	11	38	13	104	36	12	21	24	1191	2024	2313	1.00
2	MAIZE	0	0	55	11	66	10	5	16	20	780	2422	2970	1.00
3	OATS	0	42	30	20	92	47	8	13	15	849	1455	1664	1.00
4	MILLET	0	0	0	13	13	1	0	1	1	290	411	451	1.00
6	SORGH	0	0	55	12	67	10	4	12	14	543	1718	2109	1.00
7	WHEAT	0	42	11	38	91	45	7	14	17	721	1564	1858	1.00
8	COWPEAA	0	0	0	0	0	1	0	0	0	0	0	0	0.
9	GRAM	0	0	0	0	0	14	0	0	0	0	0	0	0.
11	BEANS	0	42	0	32	74	35	3	7	8	441	887	1044	1.00
12	PIGPEA	0	0	0	0	0	53	0	0	0	0	0	0	0.
13	SOYBEANANN	0	0	0	0	0	1	0	0	0	0	0	0	0.
14	CASSAVAVAA	0	0	0	0	0	57	0	0	0	0	0	0	0.
15	SW.POT	0	0	0	0	0	42	0	0	0	0	0	0	0.
16	WH.POT	0	0	42	18	60	36	23	41	47	3838	6837	7836	1.00
23	PYRETH	0	0	0	42	42	12
24	SISAL	0	0	0	0	0	61
26	FUELW1	0	43	43	54	140	46	76	76	77	5398	5443	5459	1.00
27	FUELW2	0	72	3	44	119	67	131	132	132	11035	1105	11063	1.00
28	GRASS	0	43	40	27	110	322	65	65	65	5903	65911	5914	1.00

PROVINCE TOTAL: (5) North-Eastern (Assumption Set A)

Page: P005

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	51	188	843	1082	2147	3228	127411	0.8
2	SEMIARID	0	0	14	9	23	36	59	83	27.7
	TOTAL	0	51	202	852	1105	2182	3287	127494	0.9

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
2	MAIZEE	0	0	0	112	112	1544	13	13	13	1156	1195	1207	1.00
4	MILLET	0	51	202	154	407	1550	38	42	43	937	1025	1062	1.00
5	RICE	0	0	0	97	97	2463	6	6	6	658	658	658	1.00
6	SORGH	0	0	51	936	987	926	63	64	64	643	646	647	1.00
8	COWPEAA	0	0	0	107	107	920	4	4	4	413	413	413	1.00
9	GRAM	0	0	51	112	163	1191	9	9	9	554	566	570	1.00
10	GRNDNTT	0	0	0	158	158	144	11	11	11	668	668	668	1.00
13	SOYBEANANN	0	0	0	107	107	920	5	5	5	454	454	454	1.00
26	FUELW1	0	0	65	1039	1104	4674	96	139	193	874	1256	1746	1.00
27	FUELW2	0	0	0	202	202	5733	57	85	126	2832	4222	6238	1.00
28	GRASS	0	0	0	306	306	39819	55	83	110	1786	2702	3611	1.00

PROVINCE TOTAL: (6) Nyanza Province (Assumption Set A)

Page: P006

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	0	0	2	2	5	7	14	12.8
2	SEMIARID	0	54	95	179	329	373	702	1207	273
3	SUBHUMI	88	214	438	1051	1792	572	2364	3516	510
4	HUMID	704	1971	1453	1276	5405	752	6157	7669	70.5
	TOTAL	793	2240	1987	2509	7528	1701	9230	12406	60.7

Potential Crap Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	100	402	291	2278	3072	3716	93	316	458	302	1029	1491	1.00
2	MAIZEE	355	974	1847	3794	6970	1234	593	1332	2144	850	1911	3076	1.00
3	OATS	5	56	528	335	924	5121	27	98	135	296	1062	1465	1.00
4	MILLET	95	231	275	1752	2353	2731	80	190	234	341	809	994	1.00
5	RICE	35	151	409	2258	2852	1992	242	351	479	847	1231	1680	1.00
6	SORGH	308	788	1529	2791	5417	3251	235	727	1165	435	1343	2150	1.00
7	MEAT	81	354	178	1068	1682	4226	70	202	398	414	1204	2365	1.00
8	COWPEA	75	118	332	1939	2464	1986	80	157	211	325	638	856	1.00
9	GRAM	0	109	110	484	703	3121	24	42	57	338	599	817	1.00
10	GRNDNT	66	123	279	1489	1957	2082	91	203	290	467	1036	1480	1.00
11	BEANS	153	726	1129	2236	4244	2799	120	302	503	283	711	1186	1.00
12	PIGPEA	200	596	1011	1560	3367	1878	147	368	509	437	1092	1513	1.00
13	SOYBEANAN	74	112	155	1538	1879	2758	52	128	183	275	681	973	1.00
14	CASSAVAVA	131	463	647	1217	2458	2691	2240	2614	2736	9113	10633	11130	1.00
15	SWPOT	40	170	879	1113	2202	2711	819	1656	2221	3721	7523	10090	1.00
16	WHPOT	74	258	255	312	900	3649	246	864	1469	2735	9596	16326	1.00
17	BANAN	0	30	421	1458	1908	929	1383	1514	1897	7248	7936	9942	1.00
18	OILPAL	0	0	4	45	48	105	3	5	6	687	1034	1167	1.00
19	SUGCA	1	204	911	1934	3051	2108	7208	8109	8537	23623	26576	27981	1.00
20	COFFEE	575	444	384	2684	4087	1332
21	COTTO	0	27	214	1743	1984	1533
22	PINEAPP	28	265	712	346	1351	17
23	PYRETH	875	258	706	653	2493	169
24	SISAL	46	270	1172	2023	3511	2884
25	TEA	459	1185	775	1747	4166	1239
26	FUELW1	1126	2447	2968	1952	8493	868	4819	4968	5069	5674	5849	5968	1.00
27	FUELW2	1793	2466	2033	1937	8230	985	9917	10254	10512	12050	12460	12773	1.00
28	GRASS	1960	2545	2400	2274	9179	1927	5145	5793	5968	5605	6311	6502	1.00

PROVINCE TOTAL: (7) Rift Valley Province (Assumption Set A)

Page: P007

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	132	303	1683	2118	4109	6227	110648	1.9
2	SEMIARID	613	751	1092	600	3055	1426	4481	24594	12.4
3	SUBHUMID	1987	1760	2761	1120	7628	2565	10193	18180	42.0
4	HUMID	1683	2283	2565	3194	9725	3580	13305	21125	46.0
	TOTAL	4283	4925	6721	6597	22526	11679	34206	174547	12.9

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	2520	2427	3288	7486	15722	6829	1076	2249	3487	685	1431	2218	1.00
2	MAIZEE	2069	1334	3528	6501	13433	6200	1958	3480	4837	1458	2590	3601	1.00
3	OATS	863	1773	4422	7161	14220	7758	709	1622	2569	499	1141	1806	1.00
4	MILLET	312	675	770	2698	4455	5270	263	427	538	589	959	1207	1.00
5	RICE	52	41	633	975	1701	1837	134	234	325	787	1378	1910	1.00
6	SORGH	1339	2146	1823	5354	10662	9550	972	1759	2430	912	1650	2279	1.00
7	WHEAT	1777	1821	3009	7951	14558	7268	894	2163	3585	614	1486	2463	1.00
8	COWPEAA	242	139	1050	834	2265	917	131	197	246	577	869	1087	1.00
9	GRAM	57	311	397	1268	2033	2061	74	119	151	363	584	744	1.00
10	GRNDNTT	249	153	830	968	2200	1216	203	306	395	924	1389	1797	1.00
11	BEANS	2995	1779	3310	4629	12713	8097	696	1158	1676	547	911	1318	1.00
12	PIGPEA	950	105	1788	1858	4701	1921	313	548	699	666	1166	1488	1.00
13	SOYBEANANN	99	299	794	1038	2231	950	127	199	258	571	891	1157	1.00
14	CASSAVAVAA	286	508	482	1606	2881	3406	2779	2983	3105	9644	10354	10776	1.00
15	SW.POT	360	539	229	1923	3050	3588	1582	2304	2783	5187	7553	9125	1.00
16	WH.POT	1322	1706	4640	5951	13619	8416	5848	11804	18853	4294	8667	13843	1.00
17	BANANA	0	0	22	1261	1283	898	764	808	981	5957	6300	7651	1.00
18	OIL PALM	0	0	2	131	132	27	1	13	16	68	1000	1233	1.00
19	SUGCANEE	2	142	154	1337	1634	2987	3158	3707	3936	19327	22684	24089	1.00
20	COFFEE	969	1030	851	1321	4172	6967
21	COTTON	6	76	427	825	1333	309
22	PINEAPP	1	19	291	618	928	10
23	PYRETH	744	4076	5423	4149	14392	1905
24	SISAL	215	557	568	1325	2666	5193
25	TEA	723	2353	4045	3063	10184	4036
26	FUELW1	2453	11103	7592	10215	31364	20101	14874	16283	16967	4742	5192	5410	1.00
27	FUELW2	4370	8184	8113	6301	26967	20689	28101	30195	31341	10420	11197	11622	1.00
28	GRASS	5567	8032	5325	12040	30964	49018	15483	17586	18389	5000	5679	5939	1.00

PROVINCE TOTAL: (8) Western Province (Assumption Set A)

Page: P008

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
2	SEMIARID	0	0	0	0	0	6	6	15	0.6
3	SUBHUMID	1	3	120	171	295	97	392	502	58.6
4	HUMID	331	1644	1622	2301	5898	453	6351	8168	72.2
	TOTAL	332	1647	1742	2472	6193	557	6750	8685	71.3

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	0	0	190	1680	1870	3481	63	165	351	337	882	1877	1.00
2	MAIZEE	2	207	1038	2998	. 4244	1759	460	778	1285	1083	1832	3026	1.00
3	OATS	0	0	143	1034	1177	2379	33	88	185	283	752	1568	1.00
4	MILLET	0	0	6	74	81	2597	2	5	9	216	649	1141	1.00
5	RICE	38	341	317	2783	3479	395	387	498	555	1113	1432	1596	1.00
6	SORGH	1	2	371	3099	3474	2841	148	394	854	426	1135	2460	1.00
7	WHEAT	1	0	162	1582	1745	1903	67	173	372	386	992	2132	1.00
8	COWPEAA	0	1	81	444	526	2694	22	32	46	426	608	876	1.00
9	GRAM	0	0	1	68	69	2212	1	3	4	205	385	644	1.00
10	GRNDNTT	0	0	12	374	386	2798	19	33	57	491	862	1466	1.00
11	BEANS	2	92	388	2202	2683	2699	84	157	289	313	587	1076	1.00
12	PIGPEA	70	77	289	2455	2891	2634	154	244	391	531	842	1352	1.00
13	SOYBEANANN	0	0	10	232	243	2901	7	13	23	278	554	961	1.00
14	CASSAVAVAA	100	482	370	1584	2536	2972	2312	2488	2562	9117	9812	10105	1.00
15	SW.POT	1	71	88	1683	1842	3693	684	1021	1619	3716	5542	8793	1.00
16	WH.POT	0	0	143	1393	1537	1849	371	954	2051	2412	6210	13346	1.00
17	BANANA	0	64	164	2086	2314	3088	1577	1659	1861	6814	7169	8042	1.00
18	OIL PALM	0	0	12	71	83	477	8	8	9	930	1025	1093	1.00
19	SUGCANEE	0	87	837	2341	3266	2726	8252	8564	8637	25270	26225	26448	1.00
20	COFFEE	193	814	872	2320	4199	1244
21	COTTON	0	0	81	396	478	2884
22	PINEAPP	64	149	1065	1030	2308	99
23	PYRETH	8	190	398	1633		275
24	SISAL	0	101	229	1286	1617	4203
25	TEA	105	806	983	2436	4329	1139
26	FUELW1	187	4153	931	1266	6537	86	3745	3759	3781	5728	5750	5784	1.00
27	FUELW2	410	3828	1021	1272	6531	7	8347	8397	8470	12779	12856	12968	1.00
28	GRASS	735	3671	1471	1288	7165	393	4429	4600	4643	6182	6420	6479	1.00

DISTRICT TOTAL: (101) Kiambu

Central Province

Page: D001

Arable Land by Productivity Classes (100 ha):

NR	ZONE	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Total C1–C5	Total Extent	C1–C4 % of Zone
1	ARID	0	0	0	0	0	0	0	11	0.
2	SEMIARID	33	4	41	38	116	153	269	578	20.0
3	SUBHUMID	229	296	172	62	759	125	884	1109	68.4
4	HUMID	53	352	113	8	526	0	526	869	60.5
	TOTAL	315	651	326	109	1401	278	1679	2567	54.6

Potential Crop Production:

		Land by Productivity Class (100 ha)						Class C1–C4			Class C1–C4
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	Production (1000 mt)			Yields (kg/ha)
NR	CROP	C1 > 80	C2 60–80	C3 40–60	C4 20–40	Total C1–C4	C5 5–20	MIN	AVG	MAX	MIN	AVG	MAX	MCI
1	BARLEYY	287	640	352	62	1341	235	110	262	324	819	1956	2417	1.00
2	MAIZEE	80	290	223	31	624	175	59	200	251	946	3214	4018	1.00
3	OATS	26	456	758	56	1295	205	72	191	240	558	1478	1851	1.00
4	MILLET	0	0	4	63	67	111	3	4	4	380	531	589	1.00
5	RICE	0	0	0	4	4	50	0	O	1	706	1115	1252	1.00
6	SORGH	80	290	223	71	664	141	37	144	182	553	2171	2743	1.00
7	WHEAT	81	672	348	192	1293	155	66	240	312	509	1856	2414	1.00
8	COWPEAA	0	0	0	8	8	70	0	0	1	331	454	618	1.00
9	GRAM	0	0	0	0	0	96	0	0	0	0	0	0	0.
10	GRNDNTT	0	0	0	8	8	64	0	1	1	540	740	1007	1.00
11	BEANS	110	491	426	233	1259	281	45	122	155	359	969	1235	1.00
12	PIGPEA	0	0	79	331	410	174	6	28	36	136	687	883	1.00
13	SOYBEANANN	0	0	0	8	8	70	0	0	1	351	484	667	1.00
14	CASSAVAVAA	0	4	0	99	103	574	48	59	63	4654	5720	6083	1.00
15	SW.POT	0	0	0	79	79	487	8	25	30	994	3134	3847	1.00
16	WH.POT	109	463	550	157	1280	92	441	1231	1567	3449	9618	12246	1.00
17	BANANA	0	0	0	27	27	26	13	13	13	4995	4995	4995	1.00
19	SUGCANEE	0	0	0	0	0	410	0	0	0	0	0	0	0.
20	COFFEE	0	177	236	0	413	404
23	PYRETH	0	339	210	563	1	77
24	SISAL	0	0	20	91	111	702
25	TEA	53	331	433	34	851	32
26	FUELW1	2	1192	200	165	1559	153	947	971	980	6074	6231	6286	1.00
27	FUELW2	114	1103	144	168	1529	189	1919	1987	2011	12548	12995	13147	1.00
28	GRASS	477	714	127	166	1483	540	1128	1173	1188	7602	7905	8007	1.00

Appendix B Crop-wise estimates of rainfed arable land and production potential in Kenya - assumption set A

Appendix B
Crop-wise estimates of rainfed arable land and production potential in Kenya -
assumption set A