Agroecology as a Climate Change Adaptation Strategy for Smallholders of Tehri-Garhwal in the Indian Himalayan Region     

Rajiv Pandey  Roberta Aretano  Ajay K. Gupta  Dhanraj Meena  Bhuvnesh Kumar  Juha M. Alatalo 《Small-Scale Forestry》2017,16(1):53-63

Climate change is expected to increase temperatures and rainfall in the Himalayan region and place stress on local livelihoods by affecting agro-biodiversity, crop yield, cropping patterns and the species composition of forests. This paper reports findings of a survey of farmers into the role of agroforestry or ‘agroecological intensification’ for reducing climate change vulnerability. The survey was conducted in the Tehri-Garhwal district of Uttarakhand, a Himalayan State of India. Existing traditional agroforestry was found to provide ecosystem services to farmers at various scales ranging from the global to household level, contributing to the livelihoods and resilience of the farmers to climate change. The strategies of farmers for adaptating to climate change include adoption of agroforestry due to its diversified agricultural and forest products and services. The analysis suggests that policies should consider agroforestry as a tool for improving the livelihood and resilience to climate change of farmers.  相似文献   

Soil organic carbon changes after seven years of conservation agriculture in a rice–wheat system of the eastern Indo‐Gangetic Plains          下载免费PDF全文

T. B. Sapkota  R. K. Jat  R. G. Singh  M. L. Jat  C. M. Stirling  M. K. Jat  D. Bijarniya  M. Kumar  Yadvinder‐Singh    Y. S. Saharawat  R. K. Gupta 《Soil Use and Management》2017,33(1):81-89

Sequestration of soil organic carbon (SOC) is an important strategy to improve soil quality and to mitigate climate change. To investigate changes in SOC under conservation agriculture (CA), we measured SOC concentrations after seven years of rice (Oryza sativa L.)–wheat (Triticum aestivum L.) rotations in the eastern Indo‐Gangetic Plains (IGP) of India under various combinations of tillage and crop establishment methods. The six treatments were as follows: conventional till transplanted rice followed by conventional till wheat (CTR‐CTW), CTR followed by zero‐till wheat (CTR‐ZTW), ZT direct‐seeded rice followed by CTW (ZTDSR‐CTW), ZTDSR followed by ZT wheat both on permanent raised beds with residue (PBDSR‐PBW+R), and ZTDSR followed by ZTW both with (ZTDSR‐ZTW+R) and without residues (ZTDSR‐ZTW). We hypothesized that CA systems (i.e. ZT with residue retention) would sequester more carbon (C) than CT. After seven years, ZTDSR‐ZTW+R and PBDSR‐PBW+R increased SOC at 0–0.6 m depth by 4.7 and 3.0 t C/ha, respectively, whereas the CTR‐CTW system resulted in a decrease in SOC of 0.9 t C/ha. Over the same soil depth, ZT without residue retention (ZTDSR‐ZTW) only increased SOC by 1.1 t C/ha. There was no increase in SOC where ZT in either rice or wheat was followed by CT in the next crop (i.e. CTR‐ZTW and ZTDSR‐CTW), most likely because the benefit of ZT is lost when followed by tillage. Tillage and crop establishment methods had no significant effect on the SOC stock below the 0.15‐m soil layer. Over the seven years, the total carbon input from above‐ground residues was ca. 14.5 t/ha in ZTDSR‐ZTW+R and PBDSR‐PBW+R, almost sixfold greater than in the other systems. Our findings suggest that the increased biomass production achieved through a combination of ZT and partial residue retention offers an opportunity to increase SOC whilst allowing residues to be used for other purposes.  相似文献   

Counting the Costs: Economic Growth and Environmental Change in Thailand,edited by J. Rigg. 1995. Institute of Southeast Asian Studies,Singapore, ISBN 981-3055-08-1 (paperback), S$49.50/US$36.50, xxi+267 pp.     

A. Gupta 《Land Degradation \u0026amp; Development》1999,10(6):593-594

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