Carbon Sink Capacity and Agronomic Productivity of Soils of Semiarid Regions of India - Principles of Sustainable Soil Management in Agroecosystems - page 438

16.7.1 c aRBon S tockS in d iffeRent S oil t ypeS of
R ainfed a gRoecoSySteMS of i ndia
Organic C stocks, inorganic C stocks, and TCSs differ between and within soil types
(Table 16.8). Vertisols and associated soils contain higher SOC stocks, followed by
Inceptisols > Alfisols > Aridisols ( Figure 16.7 ). In general, the SOC concentration
is greater than that of soil inorganic carbon (SIC) in Alfisols and Aridisols, while
SIC > SOC in Vertisols and Inceptisols. The SOC stocks (Mg ha -1 ) range from 26.7

TABLE 16.8
Organic C Stocks, Inorganic C Stocks, and TCSs in
Topical Soils of India

C Stocks (Mg ha -1 )

Production
System

Soil Location Organic Inorganic Total

Inceptisols

Varanasi Rice 32.54 112.36 144.90

Faizabad Rice 29.81 22.30 52.11

Agra Pearl millet 26.69 26.76 63.45

Ballowal-Sauntri Maize 56.73 72.21 128.94

Rakh-Dhiansar Maize 59.71 45.75 105.46

Jhansi Rabi sorghum 56.97 135.11 192.08

Alfisols/Oxisols

Parbhani Rice 23.28 8.81 32.10

Ranchi Rice 49.83 23.35 73.18

Anantapur Groundnut 25.41 57.02 82.43

Bangalore Finger millet 24.75 17.88 42.63

Vertisols/Vertic Groups

Rajkot Groundnut 58.02 154.77 212.79

Indore Soybean 95.90 88.33 184.24

Rewa Soybean 28.71 16.03 44.74

Akola Cotton 28.60 367.63 396.23

Kovilpatti Cotton 48.20 183.05 231.26

Bellary Rabi sorghum 34.67 298.53 333.20

Bijapur Rabi sorghum 36.60 326.06 362.67

Solapur Rabi sorghum 49.73 106.70 156.42

Arjia Maize 36.93 62.07 99.01

Aridisols

Hisar Pearl millet 20.10 14.27 34.38

SK Nagar Pearl millet 27.36 20.50 47.86

Source: Srinivasarao, Ch. et al., Carbon sequestration strategies under rainfed
production systems of India, Central Research Institute for Dryland
Agriculture, Hyderabad (ICAR), India, 2009.