Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.

Several neglected and underutilised species (NUS) provide solutions to climate change and creating a Zero Hunger world, the Sustainable Development Goal 2. Several NUS are drought and heat stress-tolerant, making them ideal for improving marginalised cropping systems in drought-prone areas. However,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hillary Mugiyo, Vimbayi G P Chimonyo, Mbulisi Sibanda, Richard Kunz, Luxon Nhamo, Cecelia R Masemola, Caroline Dalin, Albert T Modi, Tafadzwa Mabhaudhi
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ba7a49ef339743c58d0f46295cc0e7d9
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ba7a49ef339743c58d0f46295cc0e7d9
record_format	dspace
spelling	oai:doaj.org-article:ba7a49ef339743c58d0f46295cc0e7d92021-12-02T20:04:09ZMulti-criteria suitability analysis for neglected and underutilised crop species in South Africa.1932-620310.1371/journal.pone.0244734https://doaj.org/article/ba7a49ef339743c58d0f46295cc0e7d92021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0244734https://doaj.org/toc/1932-6203Several neglected and underutilised species (NUS) provide solutions to climate change and creating a Zero Hunger world, the Sustainable Development Goal 2. Several NUS are drought and heat stress-tolerant, making them ideal for improving marginalised cropping systems in drought-prone areas. However, owing to their status as NUS, current crop suitability maps do not include them as part of the crop choices. This study aimed to develop land suitability maps for selected NUS [sorghum, (Sorghum bicolor), cowpea (Vigna unguiculata), amaranth and taro (Colocasia esculenta)] using Analytic Hierarchy Process (AHP) in ArcGIS. Multidisciplinary factors from climatic, soil and landscape, socio-economic and technical indicators overlaid using Weighted Overlay Analysis. Validation was done through field visits, and area under the curve (AUC) was used to measure AHP model performance. The results indicated that sorghum was highly suitable (S1) = 2%, moderately suitable (S2) = 61%, marginally suitable (S3) = 33%, and unsuitable (N1) = 4%, cowpea S1 = 3%, S2 = 56%, S3 = 39%, N1 = 2%, amaranth S1 = 8%, S2 = 81%, S3 = 11%, and taro S1 = 0.4%, S2 = 28%, S3 = 64%, N1 = 7%, of calculated arable land of SA (12 655 859 ha). Overall, the validation showed that the mapping exercises exhibited a high degree of accuracies (i.e. sorghum AUC = 0.87, cowpea AUC = 0.88, amaranth AUC = 0.95 and taro AUC = 0.82). Rainfall was the most critical variable and criteria with the highest impact on land suitability of the NUS. Results of this study suggest that South Africa has a huge potential for NUS production. The maps developed can contribute to evidence-based and site-specific recommendations for NUS and their mainstreaming. Also, the maps can be used to design appropriate production guidelines and to support existing policy frameworks which advocate for sustainable intensification of marginalised cropping systems through increased crop diversity and the use of stress-tolerant food crops.Hillary MugiyoVimbayi G P ChimonyoMbulisi SibandaRichard KunzLuxon NhamoCecelia R MasemolaCaroline DalinAlbert T ModiTafadzwa MabhaudhiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 1, p e0244734 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hillary Mugiyo Vimbayi G P Chimonyo Mbulisi Sibanda Richard Kunz Luxon Nhamo Cecelia R Masemola Caroline Dalin Albert T Modi Tafadzwa Mabhaudhi Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.
description	Several neglected and underutilised species (NUS) provide solutions to climate change and creating a Zero Hunger world, the Sustainable Development Goal 2. Several NUS are drought and heat stress-tolerant, making them ideal for improving marginalised cropping systems in drought-prone areas. However, owing to their status as NUS, current crop suitability maps do not include them as part of the crop choices. This study aimed to develop land suitability maps for selected NUS [sorghum, (Sorghum bicolor), cowpea (Vigna unguiculata), amaranth and taro (Colocasia esculenta)] using Analytic Hierarchy Process (AHP) in ArcGIS. Multidisciplinary factors from climatic, soil and landscape, socio-economic and technical indicators overlaid using Weighted Overlay Analysis. Validation was done through field visits, and area under the curve (AUC) was used to measure AHP model performance. The results indicated that sorghum was highly suitable (S1) = 2%, moderately suitable (S2) = 61%, marginally suitable (S3) = 33%, and unsuitable (N1) = 4%, cowpea S1 = 3%, S2 = 56%, S3 = 39%, N1 = 2%, amaranth S1 = 8%, S2 = 81%, S3 = 11%, and taro S1 = 0.4%, S2 = 28%, S3 = 64%, N1 = 7%, of calculated arable land of SA (12 655 859 ha). Overall, the validation showed that the mapping exercises exhibited a high degree of accuracies (i.e. sorghum AUC = 0.87, cowpea AUC = 0.88, amaranth AUC = 0.95 and taro AUC = 0.82). Rainfall was the most critical variable and criteria with the highest impact on land suitability of the NUS. Results of this study suggest that South Africa has a huge potential for NUS production. The maps developed can contribute to evidence-based and site-specific recommendations for NUS and their mainstreaming. Also, the maps can be used to design appropriate production guidelines and to support existing policy frameworks which advocate for sustainable intensification of marginalised cropping systems through increased crop diversity and the use of stress-tolerant food crops.
format	article
author	Hillary Mugiyo Vimbayi G P Chimonyo Mbulisi Sibanda Richard Kunz Luxon Nhamo Cecelia R Masemola Caroline Dalin Albert T Modi Tafadzwa Mabhaudhi
author_facet	Hillary Mugiyo Vimbayi G P Chimonyo Mbulisi Sibanda Richard Kunz Luxon Nhamo Cecelia R Masemola Caroline Dalin Albert T Modi Tafadzwa Mabhaudhi
author_sort	Hillary Mugiyo
title	Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.
title_short	Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.
title_full	Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.
title_fullStr	Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.
title_full_unstemmed	Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.
title_sort	multi-criteria suitability analysis for neglected and underutilised crop species in south africa.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/ba7a49ef339743c58d0f46295cc0e7d9
work_keys_str_mv	AT hillarymugiyo multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT vimbayigpchimonyo multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT mbulisisibanda multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT richardkunz multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT luxonnhamo multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT ceceliarmasemola multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT carolinedalin multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT alberttmodi multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica AT tafadzwamabhaudhi multicriteriasuitabilityanalysisforneglectedandunderutilisedcropspeciesinsouthafrica
_version_	1718375625470771200

Multi-criteria suitability analysis for neglected and underutilised crop species in South Africa.

Ejemplares similares