Instability in Rice Production in Gujarat: A Decomposition Analysis

Rice is the most important and extensively grown food crop in India and is the staple food for more than half of the world population. In India, Gujarat ranks 15th in terms of area and production and 9th in productivity (2011). The scope for expanding rice production lies in enhancing productivity. The growth rates of rice area, production and productivity during 1982-83 to 2011-12 were 0.41, 1.25 and 0.83 percent per annum respectively. The growth estimate from last 30 years data shows that negligible increase was recorded in area and production of rice. Presently the yield level of rice in the state is comparatively low from national average need to be increased substantially. The magnitude of instability in area and production of rice has been higher in all the selected districts compared to state. Variability in production has been at a higher rate compared to area and productivity variability in this crop. The area-yield co-variance had a stabilizing effect on reduction of instability in rice production It can be inferred that the wide fluctuation in production of rice crop have been due to the high variability in its productivity. The future development programmes should envisage on increase of yield for bringing stabilization in production of the crop. The area instability also needs to be reduced. This could be reduced by more investment on research for rice production technology in the state

Environmental value of dung in mixed crop-livestock systems

Dung is an important byproduct of livestock. It is used as manure, or is converted into dung cakes for use as fuel or mixed with clay for flooring and plastering of mud houses. Apart from these important uses of dung, it also has a great environmental value. Its contributions to environment could be positive as well as negative. From the negative side, methane emission from manure management is a negative environmental externality. The positive externality is the use of dung cake as domestic fuel, which can be seen as a substitution or replacement of the equivalent amount of thermal energy from fuel-wood or fossil-fuel. It is a great saving on fuel-wood by cutting down of standing forests and trees, and another is the saving of land that is required to produce replacement amount of fuel-wood for dung cake. In the present paper we have estimated the quantity of fuel-wood that would be required to replace dung-cake as domestic fuel, and the land area that would be required to produce or supply that amount of fuel-wood. At current feeding rates, India produces over 83 million tonnes of dry dung-cake, which is used annually by the rural households as domestic fuel for cooking and warming. If this amount of dung cake was to be replaced by fuel wood, the country will require producing an additional amount of 23.5 million tonnes of fuel-wood, and the additional land requirement for fuel-wood plantation will be about 2.35 million ha. From the perspective of food production, supposing that under traditional rainfed agriculture food grains yield ranges from 1.5 to 2 tonnes/ha, the land saved would produce 3.5 to 5 million tonnes of foodgrains

HICF: A MATLAB PACKAGE FOR HYPERSPECTRAL IMAGE CLASSIFICATION AND FUSION FOR EDUCATIONAL LEARNING AND RESEARCH

A significant surge has been observed with the development and research in remote sensing in recent years for hyperspectral applications in Earth observation. Subsequently, the development of software and tools have also experienced an unprecedented rise, both in research as well as in academia. Although commercial software and tools such as ENVI by ITT Visual Information Solutions, Boulder, CO, USA are available for visualizing and analyzing the hyperspectral images, such software are expensive. Some open source toolboxes such as the MATLAB-based Hyperspectral Image Analysis Toolbox (HIAT) are also available. However, mostly these toolboxes have not been packaged for dissemination and operation without the MATLAB software which is commercial. In this paper, we introduce the Hyperspectral Image Classification and Fusion (HICF) package which is being developed at the Geoinformatics laboratory, Department of Civil Engineering, Indian Institute of Technology Kanpur (IITK) in MATLAB that can be used by standalone installation with an open source supplementary MATLAB compiler. This software is intended to provide a collection of algorithms both conventional and those developed at the Geoinformatics laboratory that utilizes the numerical computing capability of MATLAB for the processing of hyperspectral and multispectral imagery. The HICF software comprises a simple design of the graphical user interface which can be efficiently used particularly for academic purposes

Characterization of nutraceuticals in bael powder prepared from fruits harvested at different developmental stages

Bael [Aegle marmelos (L.) Correa], is well known in Indian traditional medical system for its multipurpose use in treatment of various diseases. Fresh ripe fruits are used in various types of shakes and sharbats but bael fruits are mainly used into its processed form like nectar or squash, jelly, candy and murabba. Bael powder is another form of product which has very high pharmaceutical value, long storability and is the pure concentrated form of fruit pulp. The aim of this study is to measure the nutraceutical values in bael powder (dry weight basis) prepared from fruit of CISH B-1 harvested at various stages of growth and development [180–335 days after fruit set (DAFS)] by using a simple HPLC technique and atomic absorption spectrophotometer (AAS). The antioxidants value (in terms of FRAP) ranges from 13.45 mmol/g at 180 DAFS (month of November) to 22.6 mmol/g at 335 DAFS (month of April). Maximum polyphenols content (5.99%) was observed at 305 and 335 DAFS (months of March and April). The antioxidants and polyphenols were enhanced significantly with the maturity of the fruits. Marmelosin and psoralen concentrations were highest at 215 DAFS and were found as 737 and 511 µg/g, respectively. Thereafter, both compounds declined significantly in mature fruit powder. Mineral contents in powder also varied with maturity stages. From this study, it may be concluded that powder prepared from immature fruits collected at early stages of development (November-January; 180–245 DAFS), possessed significantly higher amount of potassium, iron, marmelosin, psoralen and tannic acid, whereas, mature fruit powder (harvested during March-April; 305-335 DAFS) contains significantly higher content of zinc, copper, polyphenols and antioxidant

Instability in Rice Production in Gujarat: A Decomposition Analysis

Rice is the most important and extensively grown food crop in India and is the staple food for more than half of the world population. In India, Gujarat ranks 15th in terms of area and production and 9th in productivity (2011). The scope for expanding rice production lies in enhancing productivity. The growth rates of rice area, production and productivity during 1982-83 to 2011-12 were 0.41, 1.25 and 0.83 percent per annum respectively. The growth estimate from last 30 years data shows that negligible increase was recorded in area and production of rice. Presently the yield level of rice in the state is comparatively low from national average need to be increased substantially. The magnitude of instability in area and production of rice has been higher in all the selected districts compared to state. Variability in production has been at a higher rate compared to area and productivity variability in this crop. The area-yield co-variance had a stabilizing effect on reduction of instability in rice production It can be inferred that the wide fluctuation in production of rice crop have been due to the high variability in its productivity. The future development programmes should envisage on increase of yield for bringing stabilization in production of the crop. The area instability also needs to be reduced. This could be reduced by more investment on research for rice production technology in the state

The role of the subtropical jet in deficient winter precipitation across the mid-Holocene Indus basin

The mid-Holocene (7-5 ka) was a period with an increased seasonal insolation cycle, resulting from decreased insolation during northern hemisphere winter. Here, a set of six CMIP5 models is used to show that the decreased insolation reduced the upper-tropospheric meridional temperature gradient, producing a weaker subtropical jet with less horizontal shear. These effects work to reduce the baroclinic and barotropic instability available for perturbations to grow, and in consequence, storm-tracking results show that there are fewer winter storms over India and Pakistan (known as western disturbances). These western disturbances are weaker, resulting in a reduction in winter precipitation of around 15% in the north Indus Basin. Combined with previous work showing greater northwestward extent of the Indian monsoon during the mid-Holocene, our GCM-derived results are consistent with the Indus Basin changing from a summer-growing season in the mid-Holocene to a winter-growing season in the present day

Parametric study of local site response for bedrock ground motion to earthquake in Phuentsholing, Bhutan

© 2020 by the authors. Earthquakes, when it comes to natural calamities, are characteristically devastating and pose serious threats to buildings in urban areas. Out of multiple seismic regions in the Himalayas, Bhutan Himalaya is one that reigns prominent. Bhutan has seen several moderate-sized earthquakes in the past century and various recent works show that a major earthquake like the 2015 Nepal earthquake is impending. The southwestern city of Bhutan, Phuentsholing is one of the most populated regions in the country and the present study aims to explore the area using geophysical methods (Multispectral Analysis of Surface Waves (MASW)) for understanding possibilities pertaining to infrastructural development. The work involved a geophysical study on eight different sites in the study region which fall under the local area plan of Phuentsholing City. The geophysical study helps to discern shear wave velocity which indicates the soil profile of a region along with possible seismic hazard during an earthquake event, essential for understanding the withstanding power of the infrastructure foundation. The acquired shearwave velocity byMASWindicates visco-elastic soil profile down to a depth of 22.2m, and it ranged from 350 to 600 m/s. A site response analysis to understand the correlation of bedrock rigidness to the corresponding depth was conducted using EERA (Equivalent-linear Earthquake Site Response Analysis) software. The amplification factors are presented for each site and maximum amplification factors are highlighted. These results have led to a clear indication of how the bedrock characteristics influence the surface ground motion parameters for the corresponding structure period. The results infer that the future constructional activity in the city should not be limited to two- to five-story buildings as per present practice. Apart from it, a parametric study was initiated to uncover whatever effects rigid bedrock has upon hazard parameters for various depths of soil profile up to 30 m, 40m, 60m, 80m, 100m, 120m, 140m, 160m, 180mand 200m from the ground surface. The overriding purpose of doing said parametric study is centered upon helping the stack holders who can use the data for future development. Such a study is the first of its kind for the Bhutan region, which suffers from the unavailability of national seismic code, and this is a preliminary step towards achieving it

A two-year participatory intervention project with owners to reduce lameness and limb abnormalities in working horses in Jaipur, India

Participatory methods are increasingly used in international human development, but scientific evaluation of their efficacy versus a control group is rare. Working horses support families in impoverished communities. Lameness and limb abnormalities are highly prevalent in these animals and a cause for welfare concern. We aimed to stimulate and evaluate improvements in lameness and limb abnormalities in horses whose owners took part in a 2-year participatory intervention project to reduce lameness (PI) versus a control group (C) in Jaipur, India.In total, 439 owners of 862 horses participated in the study. PI group owners from 21 communities were encouraged to meet regularly to discuss management and work practices influencing lameness and poor welfare and to track their own progress in improving these. Lameness examinations (41 parameters) were conducted at the start of the study (Baseline), and after 1 year and 2 years. Results were compared with control horses from a further 21 communities outside the intervention. Of the 149 horses assessed on all three occasions, PI horses showed significantly (P<0.05) greater improvement than C horses in 20 parameters, most notably overall lameness score, measures of sole pain and range of movement on limb flexion. Control horses showed slight but significantly greater improvements in four parameters, including frog quality in fore and hindlimbs.This participatory intervention succeeded in improving lameness and some limb abnormalities in working horses, by encouraging changes in management and work practices which were feasible within owners’ socioeconomic and environmental constraints. Demonstration of the potentially sustainable improvements achieved here should encourage further development of participatory intervention approaches to benefit humans and animals in other contexts