Plant-available silicon in paddy soils as a key factor for sustainable rice production in Southeast Asia

Klotzbücher, Thimo; Marxen, Anika; Vetterlein, Doris; Schneiker, Janina; Türke, Manfred; Sinh, Nguyen Van; Manh, Nguyen Hung; Chien, Ho Van; Márquez, Leonardo; Villareal, Sylvia; Bustamante, Jesus Victor; Jahn, Reinhold

doi:10.1016/j.baae.2014.08.002

Cited by 95 publications

(52 citation statements)

References 24 publications

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“…The climate is classified as monsoonal tropical (according to Köppen-Geiger classification: Peel et al 2007). The mean annual temperature is about 27°C, annual precipitation is about 2050 mm (Klotzbücher et al 2014). The area is dominated by Plio-Quaternary volcanic rocks, mostly andesites and basalts in association with dacites and rhyodacites (Liu et al 2009).…”

Section: Description Of Sitesmentioning

confidence: 99%

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Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)

Klotzbücher¹,

Leuther²,

Marxen

et al. 2015

Plant Soil

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Background and aims Silicon (Si) is beneficial for rice plants. It increases their resistance against pests and diseases. Although Si uptake of rice crops is often higher than nitrogen uptake, studies on forms and fluxes of plant-available Si in paddy systems are scarce. Methods In 2011/12 we assessed acetate-, oxalate-, and carbonate-extractable Si in topsoil (i.e., Si forms that contribute to the pool of 'readily soluble Si') and related them to plant-Si-uptake (n=10 paddies; Laguna region; Philippines). In the wet season 2013, we determined changes in (i) plant-Si-uptake, (ii) dissolved Si (dSi) and (iii) acetate-extractable Si in topsoils in a high temporal resolution (n=5 paddies, every~10 days), and assessed dSi fluxes via irrigation, rain, drainage and percolation (n=3 paddies). Results Si storage in plants at harvest was 0.73 ± 0.12 Mg ha −1 (>78 % in straw), and not related to different Si forms in topsoils. Large stocks of carbonate-extractable Si (2-29 Mg ha −1 ) suggest an accumulation of 'phytoliths' (amorphous Si oxides in straw) in topsoil due to irrigation. Acetate-extractable Si in topsoils hardly changed during plant growth, suggesting dSi and absorded Si was continuously contributed by irrigation and phytolith dissolution. Conclusions Geo-/pedologic conditions, irrigation, and straw management are major determinants on Si storage and fluxes in irrigated rice paddies.

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Section: Description Of Sitesmentioning

confidence: 99%

“…Previous analyses showed that concentrations of acetate-extractable Si in topsoils largely differed between LEGATO study regions (Klotzbücher et al 2014). In general, Vietnamese study regions are characterized by low, Philippine regions by high concentrations.…”

Section: Introductionmentioning

confidence: 97%

Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)

Klotzbücher¹,

Leuther²,

Marxen

et al. 2015

Plant Soil

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“…The rice terraces of the municipality of Banaue are situated at 780-1300 meters above sea level on the mid and lower slopes of the Gran Cordillera mountain range. The area surrounding Banaue is characterized by 7 wet months, with 300 mm or more of rainfall per month, and 5 dry months, with less than 150 mm of rainfall (Klotzbücher et al 2015). These climatic conditions provide a dependable water source, but can also cause recurrent landslides (Araral 2013).…”

Section: Study Areamentioning

confidence: 99%

Resilience and adaptability of rice terrace social-ecological systems: a case study of a local community’s perception in Banaue, Philippines

Castonguay¹,

Burkhard²,

Müller³

et al. 2016

E&S

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. 2016. Resilience and adaptability of rice terrace socialecological systems: a case study of a local community's perception in Banaue, Philippines. Ecology and Society 21 (2) ABSTRACT. The social-ecological systems of rice terraces across Southeast Asia are the result of centuries of long-term interactions between human communities and their surrounding ecosystems. Processes and structures in these systems have evolved to provide a diversity of ecosystem services and benefits to human societies. However, as Southeast Asian countries experience rapid economic growth and related land-use changes, the remaining extensive rice cultivation systems are increasingly under pressure. We investigated the long-term development of ecosystem services and the adaptive capacity of the social-ecological system of rice terrace landscapes using a case study of Banaue (Ifugao Province, Northern-Luzon, Philippines). A set of indicators was used to describe and assess changes in the social-ecological state of the study system. The resilience of the rice terraces and the human communities that maintain them was examined by comparing the current state of the system with results from the literature. Our findings indicate that, although the social-ecological system has not yet shifted to an alternative state, pressures are increasing and some cultural ecosystem services have already been lost.

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“…Within the LEGATO project, it was shown that plantavailable Si is low in Vietnamese, and high in Philippine paddy soils. This finding can be explained by differences in geologic and pedogenic conditions between the countries (Klotzbücher et al 2015a. In Vietnam, the low Si availability might limit rice production.…”

Section: Nutrient and Water Provisionmentioning

confidence: 91%

The LEGATO cross-disciplinary integrated ecosystem service research framework: an example of integrating research results from the analysis of global change impacts and the social, cultural and economic system dynamics of irrigated rice production

Spangenberg

Beaurepaire

Bergmeier

et al. 2017

Paddy Water Environ

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In a cross-disciplinary project (LEGATO) combining inter-and transdisciplinary methods, we quantify the dependency of rice-dominated socio-ecological systems on ecosystem functions (ESF) and the ecosystem services (ESS) the integrated system provides. In the collaboration of a large team including geo-and bioscientists, economists, political and cultural scientists, the mutual influences of the biological, climate and soil conditions of the agricultural area and its surrounding natural landscape have been analysed. One focus was on sociocultural and economic backgrounds, another on local as well as regional land use intensity and biodiversity, and the potential impacts of future climate and land use change. LEGATO analysed characteristic elements of three service strands defined by the Millennium Ecosystem Assessment (MA): (a) provisioning services: nutrient cycling and crop production; (b) regulating services: biocontrol and pollination; and (c) cultural services: cultural identity and aesthetics. However, in line with much of the current ESS literature, what the MA called supporting services is treated as ESF within LEGATO. As a core output, LEGATO developed generally applicable principles of ecological engineering (EE), suitable for application in the context of future climate and land use change. EE is an emerging discipline, concerned with the design, monitoring and construction of ecosystems and aims at developing strategies to optimise ecosystem services through exploiting natural regulation mechanisms instead of suppressing them. Along these lines LEGATO also aims to create the knowledge base for decision-making for sustainable land management and livelihoods, including the provision of the corresponding governance and management strategies, technologies and system solutions.

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Plant-available silicon in paddy soils as a key factor for sustainable rice production in Southeast Asia

Cited by 95 publications

References 24 publications

Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)

Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)

Resilience and adaptability of rice terrace social-ecological systems: a case study of a local community’s perception in Banaue, Philippines

The LEGATO cross-disciplinary integrated ecosystem service research framework: an example of integrating research results from the analysis of global change impacts and the social, cultural and economic system dynamics of irrigated rice production

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Plant-available silicon in paddy soils as a key factor for sustainable rice production in Southeast Asia

Cited by 95 publications

References 24 publications

Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)

Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)

Resilience and adaptability of rice terrace social-ecological systems: a case study of a local community&#8217;s perception in Banaue, Philippines

The LEGATO cross-disciplinary integrated ecosystem service research framework: an example of integrating research results from the analysis of global change impacts and the social, cultural and economic system dynamics of irrigated rice production

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Product

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Resilience and adaptability of rice terrace social-ecological systems: a case study of a local community’s perception in Banaue, Philippines