scholarly journals Impacts of projected climate change on pasture growth and safe carrying capacities for 3 extensive grazing land regions in northern Australia

2014 ◽  
Vol 2 (1) ◽  
pp. 151 ◽  
Author(s):  
Giselle L. Whish ◽  
Robyn A. Cowley ◽  
Lester I. Pahl ◽  
Joe C. Scanlan ◽  
Neil D. Macleod ◽  
...  
Keyword(s):  
Climate Change ◽  
Northern Australia ◽  
Grazing Land ◽  
Extensive Grazing

Impact of Climate Change on Water Resources in Eastern Africa

2019 ◽  
pp. 199-227 ◽  
Author(s):  
Alfred Opere ◽  
Anne Omwoyo ◽  
Purity Mueni ◽  
Mark Arango
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Stream Flow ◽  
Climate Change Impacts ◽  
Equatorial Region ◽  
Eastern Africa ◽  
Mitigation Measures ◽  
Future Climate Change ◽  
Grazing Land ◽  
Groundwater Aquifers

Climate change is causing great impact on water resources in Eastern Africa, and there is need to establish and implement effective adaptation and mitigation measures. According to IPCC, less rainfall during the months that are already dry could increase drought as well as precipitation, and this has great impact on both permanent and seasonal water resources. Increased sea surface temperature as a result of climate change could lead to increased drought cases in Eastern African and entire equatorial region. Climate change will also result in annual flow reduction in various river resources available within the region such as the Nile River. IPCC predicts that rainfall will decrease in the already arid areas of the Horn of Africa and that drought and desertification will become more widespread, and as a result, there will be an increased scarcity of freshwater even as groundwater aquifers are being mined. Wetland areas are also being used to obtain water for humans and livestock and as additional cultivation and grazing land. This chapter reviews the climate change impacts on water resources within the Eastern Africa Region. The climate change impacts on different water resources such as Ewao Ngiro have been highlighted and projection of future climate change on water resources examined. Stream flow for Ewaso Ngiro was found to have a significant increasing trend in 2030s of RCP4.5 and non-significant decreasing trend in stream flow in 2060s for RCP4.5.

scholarly journals Climate Change in Queensland's Grazing Lands: Ii. An Assessment of the Impact on Animal Production From Native Pastures.

1998 ◽  
Vol 20 (2) ◽  
pp. 177 ◽  
Author(s):  
WB Hall ◽  
GM Mckeon ◽  
JO Carter ◽  
KA Day ◽  
SM Howden ◽  
...  
Keyword(s):  
Climate Change ◽  
Carrying Capacity ◽  
Animal Production ◽  
Limiting Factors ◽  
Climate Change Scenarios ◽  
Stock Management ◽  
Grazing Land ◽  
Change Models ◽  
Native Pastures ◽  
The Impact

The 160 million ha of grazing land in Queensland support approximately 10 million beef equivalents (9.8 million cattle and 10.7 million sheep) with treed and cleared native pastures as the major forage source. The complexity of these biophysical systems and their interaction with pasture and stock management, economic and social forces limits our ability to easily calculate the impact of climate change scenarios. We report the application of a systems approach in simulating the flow of plant dry matter and utilisation of forage by animals. Our review of available models highlighted the lack of suitable mechanistic models and the potential role of simple empirical relationships of utilisation and animal production derived from climatic and soil indices. Plausible climate change scenarios were evaluated by using a factorial of rainfall (f 10%) * 3260C temperature increase * doubling CO, in sensitivity studies at property, regional and State scales. Simulation of beef cattle liveweight gain at three locations in the Queensland black speargrass zone showed that a *lo% change in rainfall was magnified to be a f 15% change in animal production (liveweight gain per ha) depending on location, temperature and CO, change. Models of 'safe' carrying capacity were developed from property data and expert opinion. Climate change impacts on 'safe' carrying capacity varied considerably across the State depending on whether moisture, temperature or nutrients were the limiting factors. Without the effect of doubling CO,, warmer temperatures and +lo% changes in rainfall resulted in -35 to +70% changes in 'safe' carrying capacity depending on location. With the effect of doubling CO, included, the changes in 'safe' carrying capacity ranged from -12 to +115% across scenarios and locations. When aggregated to a whole-of-State carrying capacity, the combined effects of warmer temperature, doubling CO, and +lo% changes in rainfall resulted in 'safe' carrying capacity changes of +3 to +45% depending on rainfall scenario and location. A major finding of the sensitivity study was the potential importance of doubling CO, in mitigating or amplifying the effects of warmer temperatures and changes in rainfall. Field studies on the impact of CO, are therefore a high research priority. Keywords: climate change, Queensland, simulation, rangelands, beef production, cattle, carrying capacity, CO,, utilisation

Assessing the impacts of climate change and dams on floodplain inundation and wetland connectivity in the wet–dry tropics of northern Australia

2015 ◽  
Vol 522 ◽  
pp. 80-94 ◽  
Author(s):  
Fazlul Karim ◽  
Dushmanta Dutta ◽  
Steve Marvanek ◽  
Cuan Petheram ◽  
Catherine Ticehurst ◽  
...  
Keyword(s):  
Climate Change ◽  
Northern Australia ◽  
Dry Tropics ◽  
Wetland Connectivity ◽  
Floodplain Inundation ◽  
Impacts Of Climate Change

The management of climate change through prescribed Savanna burning: Emerging contributions of indigenous people in Northern Australia

2008 ◽  
Vol 28 (5) ◽  
pp. 374-385 ◽  
Author(s):  
Peter J. Whitehead ◽  
Paul Purdon ◽  
Jeremy Russell-Smith ◽  
Peter M. Cooke ◽  
Stephen Sutton
Keyword(s):  
Climate Change ◽  
Indigenous People ◽  
Northern Australia ◽  
Savanna Burning

scholarly journals Divisible Governance: Making Gas-fired Futures during Climate Collapse in Northern Australia

2022 ◽  
pp. 016224392110725
Author(s):  
Kirsty Howey ◽  
Timothy Neale
Keyword(s):  
Climate Change ◽  
Shale Gas ◽  
Fossil Fuel ◽  
Northern Territory ◽  
Ecological Effects ◽  
Northern Australia ◽  
Policy Makers ◽  
Legal Documents ◽  
Widespread Acceptance

Despite widespread acceptance that their emissions accelerate climate change and its disastrous ecological effects, new fossil fuel extraction projects continue apace, further entrenching fossil fuel dependence, and thereby enacting particular climate futures. In this article, we examine how this is occurring in the case of a proposed onshore shale gas “fracking” industry in the remote Northern Territory of Australia, drawing on policy and legal documents and interviews with an enunciatory community of scientists, lawyers, activists, and policy makers to illustrate what we call “divisible governance.” Divisible governance—enacted through technical maneuvers of temporal and jurisdictional risk fragmentation—not only facilitates the piecemeal entrenchment of unsustainable extraction but also sustains ignorance on the part of this enunciatory community and the wider public about the impacts of such extraction and the manner in which it is both facilitated and regulated. Such governance regimes, we suggest, create felicitous conditions for governments to defer, forestall, or eliminate their accountability while regulating their way further and further into catastrophic climate change. Countering divisible governance begins, we suggest, by mapping the connections that it fragments.

Transhumance, Climate Change and Conflicts: Reflections on the Legal Implications of Grazing Reserves and Ruga Settlements in Nigeria

2020 ◽  
Vol 64 (2) ◽  
pp. 199-213
Author(s):  
Millicent N Ele
Keyword(s):  
Climate Change ◽  
Northern Nigeria ◽  
Grazing Land ◽  
Intense Competition ◽  
Legal Implications ◽  
Grazing Area ◽  
Nigerian Government ◽  
The Government ◽  
Set Up

AbstractIn recent times, clash after clash has arisen between herdsmen and farmers in Nigeria. These conflicts were linked to the effects of climate change in northern Nigeria, but have been exacerbated by other factors including ethno-religious sentiments. Herdsmen forced to migrate southwards face intense competition for arable and grazing land with the farmers in Nigeria's middle belt. This invariably leads to conflicts, often resulting in gruesome murder and carnage. Thousands have died, many more have been maimed and millions displaced because of this crisis. As a solution, the Nigerian government proposes to set up grazing reserves and rural grazing area settlements in all states of the federation. The problem with this proposal is how and where to obtain the land. This article reflects on the legal implications of the proposal and argues in favour of grazing reserves and ranching on the basis of a private freehold / leasehold tenure arrangement, not through the compulsory acquisition of land by the government.

Vulnerability to Local Climate Change

2016 ◽  
pp. 139-155
Author(s):  
Mrutyunjay Swain
Keyword(s):  
Climate Change ◽  
Climatic Factors ◽  
Rainfall Variability ◽  
Water Bodies ◽  
Vulnerability Factors ◽  
Grazing Land ◽  
Local Climate ◽  
The Matrix ◽  
Local Climate Change ◽  
Wild Life

The paper analyses the perceptions of the farmers on various aspects of present as well as future vulnerability to local climate change in western Odisha, India. The changes in various climatic factors like rainfall, temperature, drought frequency and intensity during last three decades have been assessed. The farmers' experiences on hardships faced, natural and human induced causes of the changes observed have been examined. The perceptions on changes/trend in various vulnerability factors such as water availability, soil quality, early warning system, deforestation, social safety nets, institutional support system, degradation of wild life habitat, loss of wetland and water bodies, and damage to plant species etc. have been scrutinized. Besides, the future vulnerability to climate change has been assessed by ranking the vulnerability factors (economic/environmental/social/institutional) with respect to their effects during past, present and future climatic risks in the matrix form, thereby identifying the vulnerability factors posing greater threat in future. The study is based on the survey of 139 households. The study finds significant changes in behavior of climatic factors in western Odisha. The factors that are posing greater threat in future are increasing temperature and rainfall variability, frequent pest attack and plant diseases, gradual decline in grazing land and fodder availability, reduction and degradation of wild life habitat and loss of wetland and water bodies.

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