Diversity-Productivity Relationship in the Northeastern Tamaulipan Thornscrub Forest of Mexico

Table 4

Values of soil variables in fifteen sampling sites of the Tamaulipan thornscrub forest.

S-P	Texture	O.M. (%)	C. C. (%)	N (%)	C/N
11	46.00	7.09	4.11	0.14	28.68
12	43.00	5.50	3.19	0.12	26.03
13	34.98	9.40	5.45	0.15	36.21
21	37.03	5.91	3.43	0.11	31.08
22	37.95	8.08	4.68	0.14	32.94
23	42.95	8.27	4.80	0.12	39.86
31	45.95	5.25	3.04	0.08	39.68
32	41.00	5.72	3.32	0.13	25.99
33	40.98	8.47	4.91	0.10	51.28
41	10.03	16.39	9.51	0.17	56.38
42	14.03	15.76	9.14	0.15	61.15
43	11.50	19.21	11.14	0.11	104.72
51	16.00	12.23	7.09	0.07	95.22
52	21.98	4.28	2.48	0.04	62.37
53	20.05	4.69	2.72	0.04	64.79

S-P: quadrat; O.M.: content of organic matter; C. C.: content of organic carbon; N: content of nitrogen; C/N: ratio of carbon to nitrogen content.