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Jangid, B. L.
- Forest and Land Use Pattern Trend in Arid Rajasthan
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Indian Forester, Vol 129, No 4 (2003), Pagination: 495-503Abstract
This paper intends to assess the forest growth and land utilization pattern in the arid region of Rajasthan over the period 1960-1961 to 1997-1998. Rajasthan has around 7.44 per cent (1997-98) of the total geographical area under forest but in the arid region of the State only 2.0 per cent area (4,174 km2, 1997-1998) comes under forest. Based on the agroclimate the arid region of Rajastban has been classified into four zones viz. Arid Western Plain (Zone-IA), Irrigated North Western Plain (Zone-IB), Transitional Plain of Inland Drainage (Zone-IIA) and Transitional Plain of Luni Basin (Zone-IIB). The data on the land use pattern and forest area indicate that in the past 37 years arid region recorded an increase in area under forest as well as that under non agricultural uses and net area sown, whereas that under barren land, old fallow, and culturable waste declined considerably. The forest area increased from 0.81 % in 1960-1961 to 2.01 % in 1997-1998 recording an ACGR of 3.66 % as compared to the State as a whole (3.04 %). After witnessing an insignificant ACGR of the forest area in the 1960s, the arid region withessed the highest ACGR of 7.47 % in the 1970s. Similar trend was also observed for the different zones and the State. The human as well as livestock population density of the region has increased from 37 (1961) to 84 (1991) and 66 (1961) to 132 (1997), respectively. Considering the increasing biotic pressure on the land in arid Rajasthan and the trend of more intensive land cultivation on larger area there is need to accelerate the growth afforest in this region so that the natural base here could be improved to sustain the vital life support systems and also to help in bringing about favourable changes in the harsh climate of the region.
- Wood Specific Gravity of Trees in Hot Semi-Arid Zone of India:Diversity among Species and Relationship between Stem and Branches
Abstract Views :260 |
PDF Views:77
Authors
Dipak Kumar Gupta
1,
R. K. Bhatt
2,
A. Keerthika
1,
A. K. Shukla
1,
M. B. Noor Mohamed
1,
B. L. Jangid
1
Affiliations
1 ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali-306 401, IN
2 ICAR-Central Arid Zone Research Institute, Jodhpur-342 003, IN
1 ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali-306 401, IN
2 ICAR-Central Arid Zone Research Institute, Jodhpur-342 003, IN
Source
Current Science, Vol 113, No 08 (2017), Pagination: 1597-1600Abstract
Wood specific gravity (WSG) is an important parameter in allometric equations for accurate estimation of C-sequestration and other functional properties of a tree. However, WSG of many tree species especially of arid and semi-arid regions is poorly reported. Further, identifying indirect methods for determination of stem WSG from branches may be rapid and relatively easy. The present study determined WSG of stem and branches of 21 tree species in the hot semi-arid region of Western India. Three individual trees from each species were randomly selected and sampled for determination of WSG of stem, primary and secondary branch. WSG varied significantly among the species (F = 42.83, P < 0.001) and sampling locations (stem and branches) (F = 29.43, P < 0.001). In stem (at DBH), it ranged from 0.42 ± 0.04 to 0.74 ± 0.03 among the species while within an individual tree it varied in order of stem > primary branch > secondary branch in most species. WSG of stem and branches showed linear relationship and branches were found a good predictor of stem WSG (R2 > 0.83).Keywords
Arid Region, Branch, Tree Biomass, Wood Specific Gravity.Full Text
References
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- Carbon Sequestration Potential of Hardwickia Binata Roxb. Based Agroforestry in Hot Semi-Arid Environment of India: An Assessment of Tree Density Impact
Abstract Views :191 |
PDF Views:76
Authors
Dipak Kumar Gupta
1,
R. K. Bhatt
2,
A. Keerthika
1,
M. B. Noor Mohamed
1,
A. K. Shukla
1,
B. L. Jangid
1
Affiliations
1 ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali-Marwar - 306 401, IN
2 ICAR-Central Arid Zone Research Institute, Jodhpur - 342 003, IN
1 ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali-Marwar - 306 401, IN
2 ICAR-Central Arid Zone Research Institute, Jodhpur - 342 003, IN
Source
Current Science, Vol 116, No 1 (2019), Pagination: 112-116Abstract
Agroforestry is one of the most promising options for climate change mitigation through carbon sequestration. However, carbon sequestered in agroforestry system depends on various factors like type of tree species, tree density, system age, soil and climate. One of the most important factors for enhancing carbon sequestration per unit land is tree density. Hardwickia binata Roxb. has been reported as suitable agroforestry tree species with multiple benefits in arid and semi-arid region, however, the role and impact of tree density in carbon sequestration is poorly reported. This study estimated impact of tree density (D1 = 333 tree ha-1 and D2 = 666 tree ha-1) on carbon sequestration potential of 30-year-old H. binata Roxb. + Cenchrus setigerus silvipasture system in hot semiarid region of Rajasthan. The carbon sequestered in tree biomass was estimated by reported allometric equations, whereas in soil it was determined by Walkley and Black method. Results showed significant impact of tree density on carbon sequestration per unit tree and per hectare land. The average biomass carbon sequestered by a tree was significantly more (44.5%) in low density (D1) compared to high density (D1) system. However, total biomass carbon sequestered per hectare land was significantly more (40.8%) in high density system (31.6 ± 12.6 Mg C ha-1. Carbon sequestered in soil organic matter was higher in both D1 and D1 systems compared to control (sole Cenchrus setigerus field). It ranged from 19.93 ± 0.31 Mg C ha-1 in control to 22.94 ± 0.65 Mg C ha-1 and 23.25 ± 0.78 Mg C ha-1 in D1 and D2 respectively. The total carbon sequestered (below and above ground tree biomass and soil organic carbon) was in the order D2 > D1 > control.Keywords
Agroforestry, Allometric Equation, Arid and Semiarid Regions, Silvipasture, C-Sequestration, Tree Density.Full Text
References
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- Singh, G. and Rathod, T. R., Tree and crop growth and soil resource availability in Hardwickia binata Roxb agroforestry systems in the Indian desert. Arid Land Res. Manage., 2007, 21, 193- 210.
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- Vachellia nilotica Subsp. cupressiformis – Status and Conservation Approach of an Endemic Agroforestry Tree in Rajasthan
Abstract Views :188 |
PDF Views:84
Authors
Affiliations
1 ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali Marwar 306 401, IN
2 ICAR-Indian Agricultural Research Institute, Gauria Karma, Hazaribagh 825 405, IN
3 ICAR-Agricultural Technology Application Research Institute, Zone II, Jodhpur 342 005, IN
1 ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali Marwar 306 401, IN
2 ICAR-Indian Agricultural Research Institute, Gauria Karma, Hazaribagh 825 405, IN
3 ICAR-Agricultural Technology Application Research Institute, Zone II, Jodhpur 342 005, IN
Source
Current Science, Vol 120, No 8 (2021), Pagination: 1293-1294Abstract
No Abstract.Keywords
No Keywords.Full Text
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