Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China

The rice terrace agroecosystems in mountainous regions occupy an important position in regional sustainable development and cultural diversity; some of them are included in the Globally Important Agricultural Heritage System (GIAHS). Despite the considerable progress made in protecting these unique...

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Autores principales:	Nian Wang, Jiahui Li, Zhengxu Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Rice terrace agroecosystems Landscape pattern optimization Agricultural cultural heritage Landscape connectivity Conservation planning Ethnical minority Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/95763da043fc4b59bbd11a08e71df162
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spelling	oai:doaj.org-article:95763da043fc4b59bbd11a08e71df1622021-12-01T04:56:52ZLandscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China1470-160X10.1016/j.ecolind.2021.107958https://doaj.org/article/95763da043fc4b59bbd11a08e71df1622021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21006233https://doaj.org/toc/1470-160XThe rice terrace agroecosystems in mountainous regions occupy an important position in regional sustainable development and cultural diversity; some of them are included in the Globally Important Agricultural Heritage System (GIAHS). Despite the considerable progress made in protecting these unique agroecosystems, the research for planners to limit properly protected areas systematically, considering both their aesthetic and ecological values, is insufficient. In this study, an overall protecting framework was developed at the spatial planning level by optimizing the landscape pattern. We considered Jiache Valley, the core area of Congjiang’s Rice-Fish-Duck System rated in the GIAHS in 2011, as an example. Based on the indicators of visual sensitivity and ecological stability, we determined the protection scope of the core terrace area and performed a morphological spatial pattern analysis (MSPA) to identify the core area of forest patches and corridor buffer zones. Then, an ecological network corridor was constructed with the minimum cumulative resistance model; finally, the landscape optimization pattern of Jiache Valley was determined. The proposed plan not only highlights the terrace patches individually, but it also systematically protects the components of the agroecosystem including water, forests, and fields, thereby making them sustainable and exert overall ecological effects. By optimizing the patches of different spatial types and developing land management strategies within variable protection levels, the sustainable development of Jiache Valley could be promoted. The method has high significance in the optimization of landscape planning and management of rice terrace agroecosystems; it can also serve as a reference for other types of agroecosystems.Nian WangJiahui LiZhengxu ZhouElsevierarticleRice terrace agroecosystemsLandscape pattern optimizationAgricultural cultural heritageLandscape connectivityConservation planningEthnical minorityEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107958- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Rice terrace agroecosystems Landscape pattern optimization Agricultural cultural heritage Landscape connectivity Conservation planning Ethnical minority Ecology QH540-549.5
spellingShingle	Rice terrace agroecosystems Landscape pattern optimization Agricultural cultural heritage Landscape connectivity Conservation planning Ethnical minority Ecology QH540-549.5 Nian Wang Jiahui Li Zhengxu Zhou Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China
description	The rice terrace agroecosystems in mountainous regions occupy an important position in regional sustainable development and cultural diversity; some of them are included in the Globally Important Agricultural Heritage System (GIAHS). Despite the considerable progress made in protecting these unique agroecosystems, the research for planners to limit properly protected areas systematically, considering both their aesthetic and ecological values, is insufficient. In this study, an overall protecting framework was developed at the spatial planning level by optimizing the landscape pattern. We considered Jiache Valley, the core area of Congjiang’s Rice-Fish-Duck System rated in the GIAHS in 2011, as an example. Based on the indicators of visual sensitivity and ecological stability, we determined the protection scope of the core terrace area and performed a morphological spatial pattern analysis (MSPA) to identify the core area of forest patches and corridor buffer zones. Then, an ecological network corridor was constructed with the minimum cumulative resistance model; finally, the landscape optimization pattern of Jiache Valley was determined. The proposed plan not only highlights the terrace patches individually, but it also systematically protects the components of the agroecosystem including water, forests, and fields, thereby making them sustainable and exert overall ecological effects. By optimizing the patches of different spatial types and developing land management strategies within variable protection levels, the sustainable development of Jiache Valley could be promoted. The method has high significance in the optimization of landscape planning and management of rice terrace agroecosystems; it can also serve as a reference for other types of agroecosystems.
format	article
author	Nian Wang Jiahui Li Zhengxu Zhou
author_facet	Nian Wang Jiahui Li Zhengxu Zhou
author_sort	Nian Wang
title	Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China
title_short	Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China
title_full	Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China
title_fullStr	Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China
title_full_unstemmed	Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China
title_sort	landscape pattern optimization approach to protect rice terrace agroecosystem: case of giahs site jiache valley, guizhou, southwest china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/95763da043fc4b59bbd11a08e71df162
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Landscape pattern optimization approach to protect rice terrace Agroecosystem: Case of GIAHS site Jiache Valley, Guizhou, southwest China

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