Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR030674 |
Hydro-morphological disturbance and suitability for temporary agriculture of riverine islands in a tropical wandering river | |
Livia Serrao; Luca Brentari; Luz Elita Balcazar Terrones; Hugo Alfredo Huamaní; Yupanqui; Juan Pablo Rengifo Trigoso; Guido Zolezzi | |
2022-01-27 | |
发表期刊 | Water Resources Research |
出版年 | 2022 |
英文摘要 | Fluvial islands define fundamental interfaces between aquatic and terrestrial environment in river corridors, have unique environmental value and represent a place of interest for human communities worldwide. Temporary agriculture occurs in many riverine islands in tropical regions of the planet, but this has received little attention so far. By integrating remote sensing, field and laboratory investigations, hydrological and hydraulic analysis, we quantified controls on their agricultural suitability in terms of fluvial disturbance, morphological stability, soils characteristics, and selection of flood-resistant crops. A highly dynamic foothill reach of the wandering Huallaga River (Peruvian Amazon) where temporary agriculture is practiced by local farmers is used as a case study. Islands show rapid turnover rates, with their number and total area tripling in the 1986-2019 period, in association with recent river corridor widening. Simulated disturbance-free windows of opportunity can be long enough (up to 230 days, for plantain) to cultivate on the most elevated portions of the largest islands, about 3 m above the thalweg. A gradient of increasing agricultural suitability paralleled that of decreasing fluvial disturbance from the most recently developed island (e.g., organic matter 0.2-1.2%) to the more stable one (0.1-2.6%) to the established floodplain (0.5-3.5%). While the floodplain is more suitable for farming, we quantified how suitable islands are for temporary food production. Our results are generalized through a conceptual model for fluvial islands’ agricultural suitability, thus filling an important knowledge gap about the characteristics of those highly sensitive environments within floodplains still moderately affected by human activities. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/346009 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Livia Serrao,Luca Brentari,Luz Elita Balcazar Terrones,et al. Hydro-morphological disturbance and suitability for temporary agriculture of riverine islands in a tropical wandering river[J]. Water Resources Research,2022. |
APA | Livia Serrao.,Luca Brentari.,Luz Elita Balcazar Terrones.,Hugo Alfredo Huamaní.,Yupanqui.,...&Guido Zolezzi.(2022).Hydro-morphological disturbance and suitability for temporary agriculture of riverine islands in a tropical wandering river.Water Resources Research. |
MLA | Livia Serrao,et al."Hydro-morphological disturbance and suitability for temporary agriculture of riverine islands in a tropical wandering river".Water Resources Research (2022). |
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