Emergent Properties of Balinese Water Temple Networks: Coadaptation on a Rugged Fitness Landscape

Balinese “Water Temples” and the Management of Irrigation

Bali has figured prominently in debates on the question of whether irrigation centralizes state power. New evidence shows that irrigation is actually organized by networks of “water temples” that constitute an institutional system separate from the state. Earlier attempts to identify a discrete system of irrigation management misconceived the problem. For most crops, irrigation simply provides water for the plant's roots. But in a Balinese rice terrace, water is used to construct a complex, pulsed artificial ecosystem. Water temples manipulate the states of the system, at ascending levels in regional hierarchies. The permanence of water temple networks contrasts sharply with the instability of the traditional Balinese states. Since the water temples are real, perhaps it is the Balinese “state” that is chimerical.

Niche construction on Bali: the gods of the countryside

Human niche construction encompasses both purely biological phenomena, such as the evolution of lactose tolerance, and dual inheritance theory, which investigates the transmission of cultural information. But does niche construction help to explain phenomena in which conscious intention also plays a role? The creation of the engineered landscape of Balinese rice terraces offers a test case. Population genetic analysis and archaeological evidence are used to investigate whether this phenomenon emerged historically from trial and error by generations of farmers, or alternatively was designed by Bali's rulers. In light of strong support for the former hypothesis, two models are developed to explore the emergence of functional structure at both local and global scales. As time goes forward and selected patterns of irrigation schedules are implemented, local variation in rice harvests influences future decisions by the farmers, creating a coupled human–natural system governed by feedback from the environment. This mathematical analysis received a measure of empirical support when government agricultural policies severed the local feedback channels, resulting in the almost instantaneous collapse of rice harvests. The historical process of niche construction may also have included an evolution of religious consciousness, reflected in the beliefs and practices of the water temple cult.

A social-ecological framework for analyzing and designing integrated crop–livestock systems from farm to territory levels

Integrated crop–livestock systems are often considered a promising way to address agricultural sustainability issues. Many authors claim that complementarities and synergies between crops and livestock can improve nutrient cycling and delivery of ecosystem services (ES) in agricultural systems. They have analyzed effects of interactions at the farm level and affirmed the potential advantage of developing crop–livestock interactions at the territory level. However, potential benefits of developing synergies beyond the farm level have not been clearly identified. Thus, we developed a conceptual framework that can be used to analyze, design and perform integrated assessment of crop–livestock systems at the territory level. To address crop–livestock interaction issues, we define it as a social-ecological system called the territorial crop–livestock system (TCLS). The ecological system is represented as three interacting components, crops, grasslands and animals, allowing description of various land uses and their potential effects on nutrient cycling and ES. The social system, represented as farmers interacting with natural-resource managers and agro-food chain actors, determines land use and the nature and intensity of ES delivered. We highlight the importance of coordination and learning among actors to support implementation of complex adaptive systems such as TCLSs. We illustrate the expressive power of our conceptual framework through development of a generic typology of crop–livestock systems. Then we show how our conceptual framework can be used as an intermediary object with stakeholders in participatory design approaches. We illustrate this process by representing four archetypal TCLSs. We provide an example of the design approach implemented in Southwestern France to address severe recurrent water shortages, which includes analysis of land use in the current crop–livestock system and the associated key metabolic and ES issues, identification of options for change and multi-criteria analysis of these options. We conclude that this framework shows great potential to support development of sustainable farming systems at the territory level.

The SAGE Community Coordinator: A Demonstration

Sustainable polyculture gardens thrive more effectively when they are designed with an awareness of other gardens in the community, as opposed to as individual gardens. However, the complex characteristics of plants, and their relations to other plant species in terms of needs and capacities, require a complex knowledge base not easily acquired by novice gardeners. We contribute a demonstration of our project, called the Software for Agricultural Ecosystems (SAGE) Community Coordinator, that helps manage the complexities of plant relationships and provides planting suggestions based on existing plants in adjacent garden sites. The research team collected the requirements and developed a preliminary demonstration of this system. This demonstration shows the feasibility of the idea and lays the foundation for a more comprehensive implementation of the SAGE Community Coordinator. By doing so, this paper explores the use of technology to foster the establishment of complex plant assemblages in urban and suburban areas to address the current and future limits of material resources derived from plants.

Some recent developments in controlled-environment agriculture: on plant physiology, sustainability, and autonomous control

In this review, we highlight some recent developments in controlled-environment agriculture (CEA), discuss its sustainability and provide a future outlook, mainly based on recently published work f...

Of Swarms and Sand Gods

Alignment in a multi-agent world

Indigenous Knowledge Systems and Indicators of Rain: Evidence from Rwenzori Region, Western Uganda

This study investigated the abiotic and biotic environmental indicators used among pastoralists and arable farmers to predict the onset and cessation of rain as well as to make short-term and seasonal forecasts in the Rwenzori region of Western Uganda. We used a mixed-methods approach that included surveys of 907 households, focus group discussions, and key informant interviews. The results indicate that resident birds such as white-browed coucals and turacos and migrant birds such as eagles and swallows were important indicators of the onset of rains. Butterflies were an important indicator for the cessation of rains, and red ants were an indicator for the onset of rains. Among the abiotic indicators, winds, clouds, earthquakes, and cloud formation on Mount Rwenzori were important indicators. Behavior of cattle at the onset of rains was important among the pastoralists, and flowering of coffee plants was important among the arable farmers. The behavior of the biotic indicators was driven by the availability of food, water, or other necessities. An attempt to explain the phenology underlying the behavior of biotic indicators and the meteorological science underlying some of the abiotic indicators is made. Although biotic environmental indicators are rudimentary and their accuracy is influenced by external factors such as climate change, they provide climate information within the locality of the farmers. Our results suggest that the indicators used in indigenous forecasting could be incorporated in national meteorological systems in a bid to improve the accuracy of rainfall forecasts and their use among farmers and pastoralists in rural Africa.

Crops In Silico: Generating Virtual Crops Using an Integrative and Multi-scale Modeling Platform

Multi-scale models can facilitate whole plant simulations by linking gene networks, protein synthesis, metabolic pathways, physiology, and growth. Whole plant models can be further integrated with ecosystem, weather, and climate models to predict how various interactions respond to environmental perturbations. These models have the potential to fill in missing mechanistic details and generate new hypotheses to prioritize directed engineering efforts. Outcomes will potentially accelerate improvement of crop yield, sustainability, and increase future food security. It is time for a paradigm shift in plant modeling, from largely isolated efforts to a connected community that takes advantage of advances in high performance computing and mechanistic understanding of plant processes. Tools for guiding future crop breeding and engineering, understanding the implications of discoveries at the molecular level for whole plant behavior, and improved prediction of plant and ecosystem responses to the environment are urgently needed. The purpose of this perspective is to introduce Crops in silico (cropsinsilico.org), an integrative and multi-scale modeling platform, as one solution that combines isolated modeling efforts toward the generation of virtual crops, which is open and accessible to the entire plant biology community. The major challenges involved both in the development and deployment of a shared, multi-scale modeling platform, which are summarized in this prospectus, were recently identified during the first Crops in silico Symposium and Workshop.

Forest Gardens

A regenerative farm & permaculture education center on Salt Spring Island. Soil amendments, nursery plants, farm produce & design courses — growing in service to life.

https://www.thegardensaltspring.com/The Garden Salt Spring Island | cold-hardy citrus & avocado production in Canada | growing healthy soils & nutrient dense food | anaerobic digestion & Johnson-Su

The Garden is an innovative farm in Canada's Pacific Southwest. It focuses on developing resource-efficient systems for greenhouse and orchard production. It applies regenerative practices for on-farm nutrient cycling. The farm operates a small-scale anaerobic digester, has extensive rainwater catchment, and assesses progress with on-farm analysis of soil and plants using Soil Food Web microscopy, brix, and off-farm leaf sap analysis. Visit our blog, YouTube channel and workshop opportunities.

Networked Cooperative Ecosystems

Research TeamAndi Argast (Researcher), Nick Houde (Researcher), Dana Salama, (Researcher & Designer), Samuel Young (Network Mapping), Rithikha Rajamohan (Research Lead).

mata.garden

The garden is where we grow seeds of ideas. Either coming through a creative thought or a technological development we consider these live, multi-dimensional, interactive sketches or maquettes. It's important to have ideas that have no specific functional end but are there only to evolve and mutate into others. This is our place to do that.