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Partitioning of CH4 and CO2 production originating from rice straw, soil and root organic carbon in rice microcosms

Partitioning of CH4 and CO2 production originating from rice straw, soil and root organic carbon in rice microcosms Author(s): Quan Yuan, Judith Pump, Ralf Conrad Source: PLoS ONE | November 5, 2012 Flooded rice fields are an important source of the greenhouse gas CH4. Possible carbon sources for CH4 and CO2 production in rice fields are soil organic matter (SOM), root organic carbon (ROC) and rice straw (RS), but partitioning of the flux between the different carbon sources is difficult. We conducted greenhouse experiments using soil microcosms planted with rice. http://www.plosone.org/article/fetchObjectAttachment.action;jsessionid=57CCBF742B732BA8A41EB07736ED366E?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0049073&representation=PDF

Climate Change and Indian Agriculture – Implications & Way Forward

Study team: Ramanjaneyulu, Chandrashekar Indian agriculture ails today. As against a 7- 8% growth rate of economy in the last few years, agriculture and allied sectors in the last decade and half have registered a much lower growth trajectory and face stagnation. With per capita food availability at a low point and land alienation at a high point, the magnitude of food insecurity manifests itself in varied ways to multiply distress for our poor and excluded people. The current study is a small beginning for ActionAid India to understand the climate and agriculture from the perspective of small and marginal farmers. The study was conducted in three drought-prone regions of India- Anantapur of Andhra Pradesh, […]

రైతాంగంపై వాతావ‘రణం’!

భూవాతావరణంలో వస్తున్న పెనుమార్పుల ప్రభా వం మనకు నిత్యమూ అనుభవంలోకి వస్తూనే ఉంది. వ్యవసాయం ప్రధానంగా వాతావరణంపై ఆధారపడి సాగే ఉత్పత్తి కార్యకలాపం. నిజానికి వాతావరణంలోని మార్పులు, వ్యవసాయం పరస్పరం ప్రభావాన్ని నెరపుతుంటాయి. వాతావరణంలోని మార్పు ల ప్రభావాన్ని తక్కువగా అంచనావేయడం తరచుగా జరుగుతోంది. అలాగే వాతావరణంపై వ్యవసాయం కలుగజేస్తున్న మార్పులను కూడా చిన్నచూపు చూస్తు న్నాం. అందువల్లనే సాధారణంగా వాతావరణ మార్పులకు అనుగుణమైన వ్యవసాయ పద్ధతులు, సాంకేతిక పరిజ్ఞానం చుట్టూనే చర్చలు సాగుతుం టాయి. నిజంగానే వాతావరణ మార్పులకు అనువైన సేద్య పద్ధతులను రూపొందించాలన్నా, అమలు చేయాలన్నా ముందుగా వ్యవసాయం, వాతావరణాల మధ్య పరస్పర ప్రభావ సంబంధాలను సమగ్రంగా అర్థం చేసుకోవడం అవసరం. భారత రైతాంగం ఇప్పటికే అనుభవిస్తున్న జీవావరణ, ఆర్థిక, సామాజిక రాజకీయ సంక్షోభపు విశాల నేపథ్యం నుంచి వాటిని అవగాహన చేసుకోవడం అంతకంటే అవసరం. వ్యవసాయానికి, వాతావరణ మార్పులకు మధ్య సంబంధం త్రిముఖమైనది. ఒకటి, వృక్ష, జంతు, జీవప్రక్రియలపై వ్యవసాయంలోని మార్పులు కలుగజేసే ప్రత్యక్ష ప్రభావం. రెండు, నేలలోనూ, నేలలోని తేమలోనూ […]

Farmers increasingly using weather insurance to mitigate risks from climate change

http://economictimes.indiatimes.com/news/economy/agriculture/farmers-increasingly-using-weather-insurance-to-mitigate-risks-from-climate-change/articleshow/15263801.cms NEW DELHI: More farmers are using weather insurance to mitigate risks from climate change. Top two weather insurers — Agricultural Insurance Corporation (AIC) and ICICI Lombard — say business is growing at 25% annually and now covers more than 200 districts across 21 states. “The growth has been so spectacular over the past five years that as many as 12 million farmers, growing crops on over 15 million hectares of cropped area, might have been insured during the 2011-12 crop year,” said KN Rao, deputy general manager, AIC, which enjoys over 75% market share in this insurance category. While the state-owned AIC covers almost all the designated districts, its nearest competitor ICICI Lombard […]

Climate change and the South Asian summer monsoon

http://iprc.soest.hawaii.edu/news/press_releases/2012/monsoon_climate_change.pdf http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate1495.html ‘South Asian monsoon variations hard to fathom’ T.V. Padma   4 July 2012 | EN Monsoon changes due to global warming still difficult to decipher, says a review Flickr/fbloeink [NEW DELHI] Understanding how the South Asian monsoon will change in response to global warming  and resolving the uncertainties in projected changes are ‘demanding tasks’ for climate science, a review says. Current state-of-the-art general circulation models have difficulty simulating the regional distribution of monsoon rainfall, the 24 June review in Nature Climate Change says. The vagaries of the monsoon on short- and long-term timescales impact the lives of more than a billion people in South Asia who depend on rainfall for agriculture, power […]

Climate Resilient Sustainable Agriculture: A Real Alternative to False Solutions

Climate resilient sustainable agriculture: a real alternative to false solutions Author(s): Youjin Chung, Christina Billingsley Source: ActionAid International Publication Date: 01/06/2012 ActionAid believes that agroecology-based Climate Resilient Sustainable Agriculture (CSRA) is an effective way to respond to both the climate and food crisis. CRSA proposes to overcome the gaps of contemporary mitigation and adaptation programmes in agriculture by bringing to the fore the actual priorities, needs, and knowledge of farming communities themselves. CRSA prioritises the right to food, environmental conservation, and long-term community resilience in order to reduce food insecurity at the local level, and contribute to effective national and international climate change policies that support self-sufficiency and sustainability in […]

The Per Capita Myopia:The Politics Of Climate Change And The Global Crisis- Mortgaging Our Future

The Per Capita Myopia Tehelka Magazine, March 31, 2012 The Politics Of Climate Change And The Global Crisis: Mortgaging Our Future Praful Bidwai  Orient BlackSwan  392 pp; Rs 750

Water Options for India in a Changing Climate

SANDRP new report on Water Options for India in a Changing Climate   On the eve of the World Water Day 2012, the South Asia Network on Dams, Rivers & People (SANDRP) is happy to publish its new report: Water Sector Options for India in a Changing Climate. The report highlights that for the poorest sections, also most vulnerable in the climate change context, the water, food, livelihood and energy security, closely linked with the environment security, is already getting severely affected in the changing climate. It is well known that water is the medium through which climate change impacts are most dominant. South Asia is considered possibly the most vulnerable region […]

Land ownership boosts climate resilience in India

Ms. Manipadma Jena’s story on whether owning land equips small farmers in India with more resilience to climate change impacts. March 11, 2012, Manipadma Jena Despite water shortages, Chilipoi village women with their own small homestead plots are able to grow enough vegetables to feed their families. ALERTNET/Manipadma Jena GANJAM, India (AlertNet) – Efforts to secure land ownership for tribal people in one of India’s poorest states are bolstering their economic security in the face of climate-induced hardships, and helping conserve farmland and forest. In the hamlet of Kharibandh in Ganjam, a coastal district in the eastern state of Orissa (now officially called Odisha), 13 households of the Sabar tribal […]

“It rains in the village, but fields remain dry”

BINDU SHAJAN PERAPPADAN http://www.thehindu.com/sci-tech/agriculture/article2984474.ece The HinduA farmer on the outskirts of the National Capital Region of Dichaun Kalan Village inspecting his spoilt wheat crop following an unseasonal downpour which lashed the northern parts of the country. Photo: Shiv Kumar Pushpakar. Small farmers and crop production are under stress in the face of climate change The impact of climate change is unfolding at a pace that is much quicker than predicted by the Intergovernmental Panel on Climate Change (IPCC), stated a new research study released here in the Capital recently. The study conducted by Action Aid with Centre for Sustainable Agriculture, further stresses that more than 80 per cent of farmers […]

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