Dynamics of pesticides under changing climatic scenario

Aim of study. Fire regimes are frequently dynamic and change as a function of the interactions between the three main fire drivers: fuels, ignitions and climatic conditions. We characterized the recent period (1974-2005) and performed estimates for the future fire regimeArea of study. We have considered five pine and another four woodland types by means of the analyses of 100 reference areas in peninsular Spain.Material and methods. The estimates of the expected alterations in fire frequency and the fire rotation period were based on models previously developed for the climatic scenarios SRES A2 and B2.Main results. The results point to the large variability in fire frequency and rotation periods between the woodland types as defined, and also among the reference areas delimited for each of them. Fire frequencies will increase for all woodland types while very relevant shortenings of the fire rotation periods are expected. For the 32 yr period analysed, rotation periods longer than 500 yr were obtained in 54% of the reference areas while this percentage would decrease to 31% in the B2 and to 29% in the A2 climatic scenario. In the most affected woodland type, P. pinaster, from a median rotation period of 83 yr it would decrease to 26 yr in the B2 and to 20 yr in the A2 climatic scenario.Research highlights. We conclude that the predicted increases in fire activity will have adverse effects on some of the main Spanish woodland types due to the expected future disruptions in the fire regime. Keywords: Forest fires; fire regime; fire frequency; fire rotation period; climatic change.Abbreviations used: SRES: Special Report on Emissions Scenarios; IPCC: Intergovernmental Panel on Climate Change; RA: Reference Areas.

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Patterns and Factors of Natural Hazard Induced Out-migration from Meghna Estuarine Islands of Bangladesh

GeoScape ◽

10.2478/geosc-2014-0003 ◽

2014 ◽

Vol 8 (1) ◽

pp. 17-31 ◽

Cited By ~ 3

Author(s):

Rezwan Siddiqui

Keyword(s):

Natural Hazards ◽

Human Migration ◽

Primary Data ◽

Migration Decision ◽

River Bank ◽

Income Sources ◽

Migration Behaviour ◽

Household Migration ◽

Climatic Scenario ◽

Estuarine Region

Abstract Migration behaviour of the Inhabitants of Meghna Estuarine region has been affected by several social, economic and natural causes. This migration has been thought as a part of social behaviour in this region. It has been predicted in several international researches that, human migration is going to be the worst possible effect triggered by the changing climatic scenario (IPCC, 2007). Natural hazards are also very much responsible for human migration. Purpose of this research is to find out the pattern and factors of natural hazards induced outmigration in Meghna Estuarine Islands of Bangladesh. In this empirical research, primary data has been collected through threestage socioeconomic survey. From this research it has been seen that, natural hazards like river bank erosion, saline tide, flood, cyclone, storms cause extreme havoc to the life and livelihood of the inhabitants of Meghna Estuary islands. Many of these situations force inhabitants to migrate temporarily or permanently. Indirectly these hazards also affects migration behaviours by affecting natural resources and income sources of inhabitants of this region. Natural hazards have two types of effect on migration behaviour; one is forcing rapid migration by riverbank erosion, cyclone etc. and the other is making situations for slow migration decision by disturbing the regular economic, social and environmental system. Two types of outmigrations are prominent in these islands; permanent household migration and partial migration – and these migration behaviours have been influenced by natural hazards of these study areas.

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Future Challenges of Food Security and Sustainable Livestock Production in India in the Changing Climatic Scenario

Asian Journal of Animal and Veterinary Advances ◽

10.3923/ajava.2014.367.384 ◽

2014 ◽

Vol 9 (7) ◽

pp. 367-384 ◽

Cited By ~ 5

Author(s):

Rupasi Tiwari ◽

H. Dileep Kumar ◽

Triveni Dutt ◽

B.P. Singh ◽

K. Pachaiyapp ◽

...

Keyword(s):

Food Security ◽

Livestock Production ◽

Future Challenges ◽

Climatic Scenario

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Chickpea genetic resources to enhance production in changing climatic scenario

Legume Research - An International Journal ◽

10.18805/lr.v38i5.5956 ◽

2015 ◽

Vol 38 (5) ◽

Author(s):

Nidhi Verma ◽

Surendra Singh ◽

Yasin Jeshima Khan ◽

Sushil Kumar ◽

A K Singh

Keyword(s):

Genetic Resources ◽

Wild Species ◽

Crop Improvement ◽

Nutritional Composition ◽

Rapid Changes ◽

The World ◽

New Varieties ◽

Gene Complexes ◽

Increasing Demand ◽

Climatic Scenario

Chickpea is one of the dry edible legumes with best nutritional composition as it does not contain any specific major antinutritional or toxic factors. The seeds have an average of 23% protein and 80% of the crops’s nitrogen requirements are met from symbiotic nitrogen fixation. Chickpea has several desirable agronomic characteristics and it is one of the most heat and drought-resistant crop and suitable for production in low moisture and fertility soils. Chickpea remarkably predominates among other pulse crops in terms of both area and production in India. To meet with the ever increasing demand for new varieties with desirable traits, the genetic resources of chickpea are of immense value for the breeders. Due to rapid changes in the agro-ecological conditions throughout the world, the chickpea genetic resources comprising of wild species, old and primitive cultivars, land races endowed with superior gene complexes are being rapidly eroded. Efforts for augmentation of chickpea genetic resources were undertaken by importing the diverse germplasm from various parts of the world. The exotic introduction in chickpea comprises germplasm with resistance to various biotic and abiotic stresses and its wild species for utilisation in crop improvement programmes in India.

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Watershed-Induced Limnological and Microbial Status in Two Oligotrophic Andean Lakes Exposed to the Same Climatic Scenario

Frontiers in Microbiology ◽

10.3389/fmicb.2018.00357 ◽

2018 ◽

Vol 9 ◽

Cited By ~ 3

Author(s):

Alex Echeverría-Vega ◽

Guillermo Chong ◽

Antonio E. Serrano ◽

Mariela Guajardo ◽

Olga Encalada ◽

...

Keyword(s):

Climatic Scenario ◽

Microbial Status

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Indian Cattle: An Asset for Smallholders under Changing Climatic Scenario

Climate Change and Environmental Sustainability ◽

10.5958/2320-642x.2016.00004.1 ◽

2016 ◽

Vol 4 (1) ◽

pp. 20

Author(s):

R S Gandhi

Keyword(s):

Indian Cattle ◽

Climatic Scenario

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Dynamics of Aedes albopictus invasion. Insights from a spatio-temporal model

10.1101/2021.09.24.461645 ◽

2021 ◽

Author(s):

Lionel Roques ◽

Thomas Boivin ◽

Julien Papaix ◽

Samuel Soubeyrand ◽

Olivier Bonnefon

Keyword(s):

Temporal Resolution ◽

Aedes Albopictus ◽

Strong Dependence ◽

Reaction Diffusion ◽

Developmental Cycle ◽

Climatic Scenarios ◽

Temporal Model ◽

Spatio Temporal ◽

Annual Distribution ◽

Climatic Scenario

France displays a latitudinal range for the expansion of Aedes albopictus invasive populations that is not yet completely colonized providing a critical opportunity to address key invasion processes. We propose a spatio-temporal model (DISTIGRI) to describe and predict current and future expansion at both intra- and inter-annual scales of Aedes albopictus. This process-based model integrates mechanistic descriptions of the developmental cycle and the dispersal process of Aedes albopictus within a reaction-diffusion framework, depending on climatic suitability and photoperiod with a high spatio-temporal resolution. Using this model coupled with a climatic database, we propose several maps describing the current intra-annual distribution of Aedes albopictus, including the date of first emergence and the length of the period with significant adult presence. We also compute its future distribution over the next 10 years under several climatic scenarios, which shows a range expansion with a strong dependence on the climatic scenario. The outputs of the model may constitute a valuable asset for designing control and avoidance strategies, and to anticipate the biting nuisance with a high spatio-temporal resolution. These outputs also emphasize the importance of taking both dispersal and life cycle into account to obtain accurate descriptions of out-of-equilibrium processes such as ongoing invasions.

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Perspective of beneficial microbes in agriculture under changing climatic scenario: a review

Journal of Phytology ◽

10.19071/jp.2016.v8.3022 ◽

2016 ◽

Vol 8 ◽

pp. 26 ◽

Cited By ~ 25

Author(s):

P. N. Bhattacharyya ◽

M. P. Goswami ◽

L. H. Bhattacharyya

Keyword(s):

Management Practices ◽

Nutrient Management ◽

Integrated Management ◽

Agricultural Products ◽

Agricultural System ◽

Human Populations ◽

Natural Ecosystem ◽

Ecological Strategy ◽

Environment Friendly ◽

Climatic Scenario

Agriculture is a complex network of interactions of plants with microorganisms. There is a growing demand for ecologically compatible environment friendly technique in agriculture that might be able to provide adequate supply of nutrients for the increasing human populations through improvement of the quality and quantity of agricultural products. Under the changing climatic scenario of global fluxes of the key biogenic greenhouse gases (CO2, methane and nitrous oxide), and some other environmental problems, the application of beneficial microorganisms in agriculture would serve as an important alternative gateway to some of the traditional agricultural techniques. Microorganisms of agricultural importance represent key ecological strategy for integrated management practices like nutrient management, disease and pest management in order to reduce the use of chemicals in agriculture as well to improve cultivar performance. The present review is intended to focus on the emergence of agriculturally important microorganisms (AIMs) to develop an ideal agricultural system through efficient utilization of nutrients and recycling of energy and thereby to preserve the natural ecosystem resources under climate change. The progress to date in using the beneficial microflora in a variety of applications related to agriculture along with key mechanism of action is also discussed in this review.

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