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Dey, P.
- Active Himalayan Frontal Fault, Main Boundary Thrust and Ramgarh Thrust in Southern Kumaun
Abstract Views :200 |
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Authors
Affiliations
1 Geology Department, Kumaun University, Nainital, IN
1 Geology Department, Kumaun University, Nainital, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 40, No 6 (1992), Pagination: 509-528Abstract
The Siwalik front has been lifted up 60-90 m against the Holocene IndoGangetic plains. The movements on the Himalayan Frontal Fault are evident from 6-15° northward tilting of Late Pleistocene Dun Gravel, and spectacular incised meanders in streams breaking through the hill barrier, and uplift in three episodic phases of the fluvial terraces resting on the tilted Dun Gravel.In southeastern Kumaun, dextral strike-slip movement on an active fault has caused 6 km westward deflection of the Kali (Sharada) River from its consistently southerly course. Movements of fault blocks in the Siwalik domain have given rise to minor horsts and grabens, and caused blocking of streams and rivers, leading to fonnation of lakes now represented by intramontane fluviolacustrine terraces.
The Main Boundary Thrust registers variable neotectonic movements. While the Lesser Himalaya rides over the Lower Siwalik, lifting (by 70 m) the recent fluvial deposits of the Ladhiya River in the east. it is the Siwalik that has risen up relative to the Lesser Himalaya in the central and western sectors. The amount of displacement of the fluvial terraces and colluvial cones is of the order of 40 to 30 m in the Nainital area and 30 to 10 m in the Mandal valley.
Quaternary episodic movements have rejuvenated the old mature topography of the Lesser Himalaya. Movements on faults and thrusts in the southern belt are evident from abrupt narrowing in the fault zones into deep gorges of wide meandering streams, development of cascades and knickpoints and triggering of huge debris avalanches on steepened slopes. Damming of streams by colluvial cones and fans have resulted in the formation of lakes in the Bhawali-Shyamkhet area, east of Nainital.
Keywords
Geomorphology, Himalaya, Kumaun, Entrenched Meanders, Landslides-Avalanches, Tectonic Lakes.
- Biophysical Performance of Different Multipurpose Trees Species in Jharkhand, India
Abstract Views :222 |
PDF Views:94
Authors
Affiliations
1 ICAR-Research Complex for Eastern Region, Research Centre, Ranchi - 834 010, IN
2 ICAR-Indian Institute of Soil Science, Bhopal - 462 038, IN
3 ICAR-Research Complex for Eastern Region, Patna - 800 014, IN
1 ICAR-Research Complex for Eastern Region, Research Centre, Ranchi - 834 010, IN
2 ICAR-Indian Institute of Soil Science, Bhopal - 462 038, IN
3 ICAR-Research Complex for Eastern Region, Patna - 800 014, IN
Source
Current Science, Vol 116, No 1 (2019), Pagination: 82-88Abstract
An experiment was conducted to evaluate the performance and characterize plant growth behaviour, light profile and soil fertility status of seventeen different trees (12 years old). The study indicated higher biomass production potential of Gmelina arborea, Dalbergia sissoo and Leucaena leucocephala. Higher photosynthetically active radiation value below tree canopy indicates compatibility of trees with a majority of agricultural crops. In the present study, a significant increase in pH and decrease in EC of trees were observed. The significant reduction in nutrients in different trees indicated a need for replenishment of nutrients in soil for maintaining soil fertility in agroforestry systems on long-term basis.Keywords
Agroforestry, Biophysical Performance, CO2FIX Model, Multipurpose Trees Species, Tree Biomass.Full Text
References
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- Policy Matrix for Sustainable Soil Management and Climate-Resilient Agriculture
Abstract Views :267 |
PDF Views:89
Authors
P. Dey
1
Affiliations
1 ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462 038, IN
1 ICAR-Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal 462 038, IN
Source
Current Science, Vol 118, No 2 (2020), Pagination: 199-201Abstract
Land governance, extension and advisory services, finance and market, local governance and cooperation models, together with monitoring and evaluation at all stages are important for the development of policy matrix towards sustainable land management (SLM) and climate-resilient agriculture. Addressing tenure insecurity at intra-household level by giving women access to landuse rights, legal recognition and protection of land tenure, involving different stakeholders in policy-making processes, and integration of SLM into community development plans are pivotal for development of the policy. In addition, adoption of ICT, incorporating externalities for making economic decisions, accounting for capital invested in the face of climate change, strengthening local and community governance structures, and development of voluntary guidelines on SLM in sync with local law are essential elements for the development of such a policy.Keywords
Climate-Resilient Agriculture, Policy Matrix, Soil Health, Sustainable Land Management.Full Text
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