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IAPRS & SIS, Vol.34, Part 7, “Resource and Environmental Monitoring”, Hyderabad, India, 2002
year. Thus the difference was 11.9 ma or 3.64 per cent of the
reported figure by DES for the entire country during 1988 — 89.
The GCA accounted for 204.58 mha and cropping intensity is
135.05 per cent (Table 3).
The forest (within notified area) accounted for 42.05 mha or
12.79 per cent to TGA and the forest (outside notified area)
accounted for 5.57 mha (excluding area under forest blanks of
0.08 mha or 0.02 per cent) or 1.71 per cent of TGA. Also,
about 2.44 mha or 0.03 per cent of area (within notified area)
was devoid of forest cover and was utilised for other land use /
land cover such as crop land, shifting cultivation, built up area
and wastelands. Total area under wastelands estimated in the
country based on 1:250,000 scale of mapping was 75.53 mha or
22.98 per cent to TGA (Table-1 and 2).
Table 3: Area under Agricultural land use categories, India
(1988 — 89)
Sl. | Category Area in | Percentage of
No. hectares total agricultural
area
1; Kharif / crop land 120586769 72,97
2, Rabi crop land 76300445 46.17
3. Double cropped 53105792 32.14
area
4. Net area sown 143781426 87.01
5. Gross cropped area 19687218
6. Fallow land* 13762590 8.33
7; Agricultural 7700343 4.66
plantation
*Current / seasonal
Total agricultural land: 1652,44,359 ha; Cropping intensity:
136.94 per cent (Gross cropped area / net area sown x 100)
Table —4: Area under land use / land cover categories within notified forest area, India (1988 — 89)
SI. No. Category Area in hectare Percentage of total forest
area
1. Evergreen / semi-evergreen* 13472546 21:56
2. Deciduous Forest* 27150351 43.45
3. Degraded forest 16274270 26.04
4. Forest blank* 1733512 2.71
3. Forest plantation* 1077793 1772
6. Mangrove forest* 350067 0.56
7. Cropland 501278 0.80
8. Fallow 937 Negligible
0. Agricultural plantation 9618 0.01
10. Abandoned jhum / bamboo 1385720 2:22
forest
11. Abandoned jhum / juvenile tree 150838 0.24
forest
12. Shifting cultivation 62719 0.10
13. Grassland grazing land 813 Negligible
14. Gullied ravinous area 29493 0.05
15. Marshy / swampy area 24585 0.04
16. Sandy area 2113 Negligible
17. Barren rocky / stony waste 274920 0.44
sheet rock area
18. Built-up area 1728 Negligible
19, Salt pans area 13 Negligible
Total: 62503314 100.00
* Area of 711,820 ha of evergreen / semi-evergreen 46.63,524 ha of deciduous, 41,659 ha of forest plantation 80,341 ha of forest
blanks and 1,54,932 ha of mangrove forest outside the notified forest boundaries, is not included.
3.3 Reconciliation of Area Statistics generated by Remote
Sensing and Ground based Techniques
The land use / land cover area statistics derived from satellite
data at the district level for the base year 1988 — 89 were
compared with the figures published by the Bureau of
Economics and Statistics, Directorate of Economics and
Statistics (DES), Ministry of Agriculture (MOA), Government
of India, for the same period for consistency and compatibility.
Firstly, the comparison was made by matching the different
land use classes in both to ‘one-to-one’ common group and
secondly by comparing the definitions / explanations of each
class with respect to the ‘Nine-fold Classification’ on the land
utilisation adopted by BES and DES / MOA. On comparison,
difference in areas were noticed with respect to the net area
sown (NAS), land put to non-agricultural use and pasture land.
541
But the major difference in area was observed with respect to
net area sown and land put to non-agricultural use.
The difference in the area reported under net area sown was
around 15 — 20 per cent less than the figure derived by remote
sensing in most of the districts / states in the country. To
enable to understand the causes of variation of difference in
figures (on request from the Planning Commission, and
Ministry of Agriculture, Government of India) a reconciliation
survey (verification of information derived from Remote
sensing techniques and ground data collection / reportiifg
system by BES) was jointly undertaken between NRSA, BES,
Agriculture, Revenue and Land Records Departments, from
Government of Andhra Pradesh, in selected three sample
districts (representing different agro-climatic conditions) viz,
Krishna, Kurnool and Nalgonda covering 15 mandals, 45