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Sustainability of Village Tank Cascade Systems of Sri Lanka: Exploring Cascade Anatomy and Socio-Ecological Nexus for Ecological Restoration Planning

التفاصيل البيبلوغرافية
العنوان: Sustainability of Village Tank Cascade Systems of Sri Lanka: Exploring Cascade Anatomy and Socio-Ecological Nexus for Ecological Restoration Planning
المؤلفون: Sujith S. Ratnayake, Lalit Kumar, Punchi B. Dharmasena, Harsha K. Kadupitiya, Champika S. Kariyawasam, Danny Hunter
المصدر: Challenges, Vol 12, Iss 2, p 24 (2021)
بيانات النشر: MDPI AG, 2021.
سنة النشر: 2021
المجموعة: LCC:Technology
LCC:Science (General)
مصطلحات موضوعية: village tank cascade system, socio-ecological nexus, cascade anatomy, cascade ensemble, ecological productivity, ecological restoration, Technology, Science (General), Q1-390
الوصف: Village Tank Cascade Systems (VTCSs) in the Dry Zone of Sri Lanka have evolved as sustainable ecosystems through human interventions to ensure water availability and other services for people and their environs during the last few millennia. However, VTCSs are vulnerable to global environmental changes resulting in continual deterioration of ecological health and hydro-socio-ecological status, crucial for the food and livelihood security of rural farming communities in the dry zone. This paper seeks to explore resource systems of the Mahakanumulla VTCS located in Anuradhapura district of Sri Lanka to (i) identify the spatial metrics linked to the sustainability and socio-ecological resilience of the VTCS, and (ii) determine interactions among system elements and their impacts on productivity and restoration challenges. The spatial analysis was conducted using a Digital Elevation Model (DEM), recent digital topographic map layers and Google Earth images to understand the spatial distribution and ensemble of tank environs. Participatory field assessment data were also used to determine socio-ecological nexus and factors that contribute to the reduction of ecological productivity of VTCS. The study revealed that the ensemble of tank environs is significant for providing regulatory and supporting ecosystem services (ES) and synergistic relationships with provisional ES of the VTCS. Results also revealed that the complex land-water-biodiversity-climate and food nexus that determines the productivity of the VTCS could be adopted in VTCS ecological restoration planning. The study presents a comprehensive framework to analyse causal factors and processes leading to reduction of overall productivity linked with variables of socio-ecological properties, vulnerability and resilience of the VTCS landscape.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2078-1547
Relation: https://www.mdpi.com/2078-1547/12/2/24; https://doaj.org/toc/2078-1547
DOI: 10.3390/challe12020024
URL الوصول: https://doaj.org/article/c26a37fed3fc4c889a3a28c033c65d75
رقم الأكسشن: edsdoj.26a37fed3fc4c889a3a28c033c65d75
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20781547
DOI:10.3390/challe12020024