Armando Martinez Valle

Armando Martinez Valle
Consultative Group on International Agricultural Research | CGIAR · Decision and Policy Analysis Program

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21
Publications
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Publications

Publications (21)
Article
Full-text available
As climate change continues to exert increasing pressure upon the livelihoods and agricultural sector of many developing and developed nations, a need exists to understand and prioritise at the sub national scale which areas and communities are most vulnerable. The purpose of this study is to develop a robust, rigorous and replicable methodology th...
Data
Adaptive capacity map for the case study country: Vietnam. The respective indicators (Poverty, Health, Infrastructure….) are displayed in 3 classes (low, medium, high) based on the natural breaks (jenks) classification using ArcMap 10.1. Overall AC Index is displayed as low (0.535–0.661), medium (0.662–0.771) and high (0.772–1) corresponding to the...
Data
Summary of studies that use GIS analysis to quantify vulnerability of rural communities to climate change. The table offers insights into the key characteristics of the studies In order to place the conceptual framework of vulnerability in the reported studies against the CRVA approach outlined in this paper. (DOCX)
Data
Methodology used to quantify potential soil erosion impact in Vietnam. The Revised Universal Soil Loss Equation (RUSLE) [112] was applied using local datasets for the respective erosion factors. (DOCX)
Data
Indicators used to capture Adaptive Capacity in Nicaragua. Selected indicators and assigned weights are adopted from the Bouroncle et al [7] study. (DOCX)
Data
A summary of selected vulnerable regions for Nicaragua (NIC) and Vietnam (VNM), with a reference to the “main drivers” (Sensitivity and Exposure) behind the vulnerability and the respective Adaptive Capacity (AC). A crop is classified as sensitive to climate change when climate suitability decline is equivalent to an index (see Table 3) of 0.25 (-5...
Data
Vulnerability of Rice and Coffee (Robusta) to climate change (2050) under a high emission scenario (RCP 8.5). The vulnerability of rice and coffee (Robusta) are a function of sensitivity, exposure and adaptive capacity. The vulnerability index is categorized into five classes from ‘lowest’ to ‘highest’ using the equal intervals classification in Ar...
Data
Crop parameters, model and selected natural hazards for Nicaragua, Uganda and Vietnam. The MaxEnt Model [110] was used for selected crops when accurate presence data was available, or if the crop is predominantly irrigated, such is the case of Rice in Vietnam [111] or grown at particular elevational ranges, for example, coffee Arabica in Nicaragua...
Technical Report
Full-text available
Nicaragua is particularly vulnerable to climate change due to its geographic, social, economic and environmental conditions. Increased temperature, fluctuation of precipitation patterns, and sea-level rise pose significant impacts for agricultural productivity, water resources availability and the risk of extreme disaster. Consequently, some crops...
Article
Full-text available
The production of tropical agricultural commodities, such as cocoa (Theobroma cacao) and coffee (Coffea spp.), the countries and communities engaged in it, and the industries dependent on these commodities, are vulnerable to climate change. This is especially so where a large percentage of the global supply is grown in a single geographical region....
Article
Full-text available
Climate change is one of the main threats to rural livelihoods in Central America, especially for small and medium-sized farmers. Climate change vulnerability assessment (CCVA) integrates biophysical and socioeconomic information to support policy decisions. We present a CCVA of agricultural livelihoods of four countries in Central America, at the...
Article
Full-text available
Coffee is grown in more than 60 tropical countries on over 11 million ha by an estimated 25 million farmers, most of whom are smallholders. Several regional studies demonstrate the climate sensitivity of coffee (Coffea arabica) and the likely impact of climate change on coffee suitability, yield, increased pest and disease pressure and farmers’ liv...
Technical Report
Full-text available
Vietnam is one of the countries particularly vulnerable to climate change. Increased temperatures, increased salinity intrusion due to sea-level rise and altering precipitation patterns significantly affect livelihood options of smallholder farmers, resulting in losses in agricultural production. These impacts are projected to become increasingly s...
Working Paper
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Situated between Mozambique and Madagascar, the Union of the Comoros is one of the world’s poorest countries. Heavy dependence on agriculture, complicated by high population density and a lack of governance has led to mismanagement of natural resources and land degradation. Additionally, the country faces several environmental risks, including drou...
Article
Full-text available
The West African cocoa belt, reaching from Sierra Leone to southern Cameroon, is the origin of about 70% of the world's cocoa (Theobroma cacao), which in turn is the basis of the livelihoods of about two million farmers. We analyze cocoa's vulnerability to climate change in the West African cocoa belt, based on climate projections for the 2050s of...
Research
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Country profile for Climate Smart Agriculture practices in Nicaragua, Central America.
Technical Report
Full-text available
Liberia is one of the world’s poorest countries. Efforts to rebuild its economy after several years of internal conflict were partially set back by the 2014-5 Ebola crisis. The country’s lowland humid climate and land-use history suggest a potential to increase the production of cocoa (Theobroma cacao) and coffee (Coffea spp.) to generate income an...
Article
Full-text available
Nicaragua has already experienced substantial climate change, in part due to a loss of one half of its forest cover in the last half-century. In this study, we assess the extent to which historical climate trends have contributed to stagnating yields for maize (Zea mays) and bean (Phaseolus vulgaris), the two main staple crops in the country. We fi...
Article
Ghana and Côte d’Ivoire are the world’s leading cocoa (Thebroma cacao) producing countries; together they produce 53 % of the world’s cocoa. Cocoa contributes 7.5 % of the Gross Domestic Product (GDP) of Côte d’Ivoire and 3.4 % of that of Ghana and is an important cash crop for the rural population in the forest zones of these countries. If progres...

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