Estimation of Suitable Areas for Coffee Growth Using a GIS Approach and Multicriteria Evaluation in Regions with Scarce Data

Ochoa, Pablo A.; Chamba, Yesenia M.; Arteaga, Juan; Edwin, D.

doi:10.13031/aea.12354

Cited by 20 publications

(24 citation statements)

References 9 publications

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“…Considering only the PD as a selection criterion for priority areas for IWM, those activities (i.e., soil erosion control, protection of vulnerable lands, protection of groundwater recharge zones, integrated soil‐crop‐water management) are especially required in SW1, SW6, SW3, SW2, and SW7. However, human activities within the CW are strongly related to agriculture, in which the cultivation of corn, coffee, and sugarcane are dominant, as well as livestock breeding (Capa et al ; Ochoa et al ; Ochoa et al ). These human activities exert pressure on soil and water resources, additionally intensified by population growth, which threatens long‐term sustainability.…”

Section: Resultsmentioning

confidence: 91%

Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

Arteaga¹,

Ochoa²,

Fries

et al. 2020

J American Water Resour Assoc

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Research Impact Statement: Methodology to prioritize areas of soil and water management and conservation in basins. A decision-making tool for the implementation of targets 6.6, 15.1-15.2 of the Sustainable Development Goals.ABSTRACT: Integrated watershed management (IWM) is a priority, especially in semiarid regions that are concurrently affected by population growth, land use change, soil erosion, and poor governance. In developing countries, IWM is often done without any support tool, scientific data, or deep knowledge of territory characteristics. The aim of this study was to present a case study to apply a decision support tool to prioritize areas for territory management. A simple, quantitative multi-criteria analysis was applied in a semiarid basin of the Ecuadorian Andes to identify the zones of greatest concern for implementation of resource conservation and management practices at a local and regional scale. In addition to describing the current state of the conditions of this basin, our results suggest scenarios of change in relation to official population projections based on spatial analysis of land use change. Analysis resulted in a scattered distribution of priority values within the watershed, so a hierarchical rule was incorporated to define priorities at the subwatershed (SW) scale. Our analysis identified four SW of very high priority and urgent need to implement management practices. Based on projections of future change due to population growth and land cover change, the number of subbasins that require more attention was doubled. Finally, this study includes zones for management or conservation of the land, according to the Sustainable Development Goals.(KEYWORDS: decision support systems -DSS; integrated watershed management -IWM; SDGs; spatial modeling; semiarid basins.)Paper No. JAWRA-18-0106-P of the

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Section: Resultsmentioning

confidence: 91%

Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

Arteaga¹,

Ochoa²,

Fries

et al. 2020

J American Water Resour Assoc

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“…However, to date, the Penman-Monteith method [86] is generally applied, due to its precise estimation of ET 0 amounts because additional meteorological information, such as wind speed, relative humidity and solar radiation, is considered. These additional parameters were not available for the study area, as in many semiarid regions in the world, particularly in developing countries, where historical data is also scarce (e.g., [31,38,51]). Nevertheless, the applied method provides reliable results for decision makers respective to water management, because the specific crop factor Kc was included to calculate ETc (e.g., [89]), even though over-and underestimation between 10% and 25% must be considered [73].…”

Section: Discussionmentioning

confidence: 99%

“…The elevation ranges between 1100 m asl at the valley bottom and 3800 m asl at the highest mountain tops ( Figure 1). The climate in the study area is semiarid ( Figure 2), with a mean annual precipitation of 808.3 mm [31]. The precipitation shows a clear annual cycle with one main rainy season from October to April (austral summer), when over 88% of the total annual rainfall amounts are recorded, and a dry season from May to September (austral winter; [30,39]).…”

Section: Study Areamentioning

confidence: 99%

“…These regions are mostly situated near the transition zone of the northern Peruvian desert, which makes these regions vulnerable to desertification and soil erosion processes, caused by changing climate conditions and anthropogenic activities (land use change) [16,29]. Unfortunately, information about climate and soil characteristics are limited (e.g., [30,31]), which complicates water balance analysis and soil moisture content determination. Nonetheless, these data are necessary to create sustainable water management plans, but to date information about water balance and soil moisture deficits is mostly unavailable.…”

Section: Introductionmentioning

confidence: 99%

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Water Balance and Soil Moisture Deficit of Different Vegetation Units under Semiarid Conditions in the Andes of Southern Ecuador

Fries

Silva

Pucha-Cofrep

et al. 2020

Climate

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Water availability in semiarid regions is endangered, which is not only due to changing climate conditions, but also to anthropogenic land use changes. The present study analyzed the annual and monthly water balance (WBc) and the soil moisture deficit (Ds) for different vegetation units under semiarid conditions in the Andes of southern Ecuador, based on limited meteorological station data and field measurements (soil samples). To calculate crop evapotranspiration (ETc) the Blaney-Criddle method was applied, and the specific crop factor (Kc) included, because only temperature (T) and precipitation (P) data were available. By means of the soil samples the water retention capacity (RC) of the different soil types present in the study area were estimated, which, in combination with WBc, provided reliable results respective to water surpluses or deficits for the different vegetation units. The results indicated highest Ds for cultivated areas, particularly for corn and sugarcane plantations, where annual deficits up to −1377.5 mm ha −1 and monthly deficits up to −181.1 mm ha −1 were calculated. Natural vegetation cover (scrubland, forest and paramo), especially at higher elevations, did not show any deficit throughout the year (annual surpluses up to 1279.6 mm ha −1 ; monthly surpluses up to 280.1 mm ha −1 ). Hence, it could be concluded that the prevailing climate conditions in semiarid regions cannot provide the necessary water for agricultural practices, for which reason irrigation is required. The necessary water can be supplied by areas coved by natural vegetation, but these areas are endangered due to population growth and the associated land use changes.

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“…The work provides others around the world with a basis for examining and implementing a concept for water capture in this era of water shortage. Ochoa et al (2017) performed a study to determine where coffee can be most profitability grown in Ecuador. They exhaustively analyzed conditions on some 70 farms with demographic surveys, physiographic analyses, soil physical analyses, and soil chemical analyses.…”

mentioning

confidence: 99%

International Watershed Technology: Improving Water Quality and Quantity at the Local, Basin, and Regional Scales

Tollner¹,

Douglas-Mankin²

2017

Transactions of the ASABE

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ABSTRACT. This article introduces the five papers in the "atershed science and engineering have advanced rapidly in recent decades with the development and application of expanded knowledge and cutting-edge technologies in environmental monitoring, geospatial data processing, modeling, and analysis. While these approaches have solved many critical problems, many more challenges remain.Advances in international watershed technology have been summarized in two recent American Society of Agricultural and Biological Engineers (ASABE) special collections Douglas-Mankin, 2013, 2016) that resulted from the third and fourth in a series of international conferences on the topic. Efforts to increase exchange of the latest international research and technology related to sustainable watershed resource management continued with the fifth biennial ASABE 21st Century Watershed Technology Conference and Workshop: Improving Water Quality and the Environment. The conference received broad sponsorship from ASABE; the Texas Institute for Applied Environmental Research (TiAER) at Tarleton State University; Universidad Regional Amazonica (IKIAM), Quito, Ecuador; Secretary of Education, Office of Science, Technology, and Innovation (SENESCYT), Quito, Ecuador; the University of Florida; and the USDA-ARS. Professionals working in watershed technology and related areas met in Quito, Ecuador, on 3-9 December 2016 to exchange information on science, applications, and developments in watershed science and technology. The meeting papers are available in the ASABE Technical Library (http://elibrary.asabe.org) and may be located with a search of the conference papers.The presentations included a breadth of quality work relating to applications of agricultural and biological engineering in developing and developed countries to solve practical problems. Five papers from the conference were selected for inclusion in this collection as exemplary contributions to advancing watershed technology and science. This introductory article introduces and summarizes these papers.

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Estimation of Suitable Areas for Coffee Growth Using a GIS Approach and Multicriteria Evaluation in Regions with Scarce Data

Abstract: ABSTRACT.

Cited by 20 publications

References 9 publications

Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

Water Balance and Soil Moisture Deficit of Different Vegetation Units under Semiarid Conditions in the Andes of Southern Ecuador

International Watershed Technology: Improving Water Quality and Quantity at the Local, Basin, and Regional Scales

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