3 research outputs found
Not Available
Not AvailableCurrent status of land/soil resources of the IndoGangetic
Plains (IGP) is analysed to highlight the issues
that need to be tackled in near future for sustained
agricultural productivity. There are intraregional
variations in soil properties, cropping systems;
status of land usage, groundwater utilization
and irrigation development which vary across the subregions
besides demographies. Framework for land
use policy is suggested that includes acquisition of
farm-level data, detailing capability of each unit to
support a chosen land use, assess infrastructural support
required to meet the projected challenges and
finally develop skilled manpower to effectively monitor
the dynamics of land use changes.Not Availabl
Not Available
Not AvailableIn recent years, georeferenced soil information system
has gained significance in agricultural land-use
planning and monitoring the changes in soil properties/
soil quality induced by land-use changes. The spatiotemporal
information on saturated hydraulic
conductivity (sHC) and soil water retention–release
behaviour is essential for proper crop and land-use
planning. The sHC greatly influences the drainage
process and soil water retention–release behaviour,
ultimately affecting the crop growth and yield. However,
sHC and water retention are not measured in a
routine soil survey and are generally estimated from
easily measurable soil parameters through pedotransfer
functions (PTFs). In the present study, PTFs for
sHC and water retention were developed separately
for the soils of two food-growing zones of India (the
Indo-Gangetic Plains (IGP) and the black soil region
(BSR)). For the IGP soils, sHC is affected by the
increased subsoil bulk density due to intensive cultivation.
In BSR, presence of Na+ and Mg++ ions affects
the drainage and water retention of the soils. Therefore,
these soil parameters were considered while
developing the PTFs using stepwise regression technique
in SPSS. The validation of PTFs was found to be
satisfactory with low RMSE values and high model
efficiency.Not Availabl
Not Available
Not AvailableCurrent status of land/soil resources of the Indo-
Gangetic Plains (IGP) is analysed to highlight the issues
that need to be tackled in near future for sustained
agricultural productivity. There are intraregional
variations in soil properties, cropping systems;
status of land usage, groundwater utilization
and irrigation development which vary across the subregions
besides demographies. Framework for land
use policy is suggested that includes acquisition of
farm-level data, detailing capability of each unit to
support a chosen land use, assess infrastructural support
required to meet the projected challenges and
finally develop skilled manpower to effectively monitor
the dynamics of land use changes.Not Availabl