Search Results - "Tjoa, Aiyen"

Soil Nitrogen-Cycling Responses to Conversion of Lowland Forests to Oil Palm and Rubber Plantations in Sumatra, Indonesia by Allen, Kara, Corre, Marife D, Tjoa, Aiyen, Veldkamp, Edzo

“…Rapid deforestation in Sumatra, Indonesia is presently occurring due to the expansion of palm oil and rubber production, fueled by an increasing global demand…”
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Measured greenhouse gas budgets challenge emission savings from palm-oil biodiesel by Meijide, Ana, de la Rua, Cristina, Guillaume, Thomas, Röll, Alexander, Hassler, Evelyn, Stiegler, Christian, Tjoa, Aiyen, June, Tania, Corre, Marife D., Veldkamp, Edzo, Knohl, Alexander

“…The potential of palm-oil biofuels to reduce greenhouse gas (GHG) emissions compared with fossil fuels is increasingly questioned. So far, no measurement-based…”
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Cacao Cultivation under Diverse Shade Tree Cover Allows High Carbon Storage and Sequestration without Yield Losses by Abou Rajab, Yasmin, Leuschner, Christoph, Barus, Henry, Tjoa, Aiyen, Hertel, Dietrich

“…One of the main drivers of tropical forest loss is their conversion to oil palm, soy or cacao plantations with low biodiversity and greatly reduced carbon…”
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Mulching with pruned fronds promotes the internal soil N cycling and soil fertility in a large-scale oil palm plantation by Formaglio, Greta, Veldkamp, Edzo, Damris, Muhammad, Tjoa, Aiyen, Corre, Marife D.

“…Intensive management practices in large-scale oil palm plantations can slow down nutrient cycling and alter other soil functions. Thus, there is a need to…”
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Smallholder RSPO certification, economic benefits and agrochemical use by Renner, Sebastian, Ruml, Anette, Lakemann, Tabea, Nuryartono, Nunung, Tjoa, Aiyen, Corre, Marife D, Lay, Jann

“…Abstract Sustainability standards, such as the Roundtable for Sustainable Palm Oil (RSPO), can potentially mitigate the trade-offs between economic benefits…”
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Aluminium Accumulation and Intra-Tree Distribution Patterns in Three Arbor aluminosa (Symplocos) Species from Central Sulawesi by Schmitt, Marco, Boras, Sven, Tjoa, Aiyen, Watanabe, Toshihiro, Jansen, Steven

“…Accumulation of Aluminium (Al) at concentrations far above 1,000 mg kg-1 in aboveground plant tissues of Arbor aluminosa (Symplocos) species is the main reason…”
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Assessing mangrove restoration practices using species‐interaction networks by O'Connell, Darren P., Fusi, Marco, Djamaluddin, Rignolda, Rajagukguk, Bulfrit B., Bachmid, Fihri, Kitson, James J. N., Dunnett, Zoe, Trianto, Agus, Tjoa, Aiyen B., Diele, Karen, Evans, Darren M.

“…Mangroves are uniquely important ecosystems, for preserving biodiversity, sustaining livelihoods, and mitigating against climate change. However, they are…”
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Reducing Fertilizer and Avoiding Herbicides in Oil Palm Plantations—Ecological and Economic Valuations by Darras, Kevin F. A., Corre, Marife D., Formaglio, Greta, Tjoa, Aiyen, Potapov, Anton, Brambach, Fabian, Sibhatu, Kibrom T., Grass, Ingo, Rubiano, Andres Angulo, Buchori, Damayanti, Drescher, Jochen, Fardiansah, Riko, Hölscher, Dirk, Irawan, Bambang, Kneib, Thomas, Krashevska, Valentyna, Krause, Alena, Kreft, Holger, Li, Kevin, Maraun, Mark, Polle, Andrea, Ryadin, Aisjah R., Rembold, Katja, Stiegler, Christian, Scheu, Stefan, Tarigan, Suria, Valdés-Uribe, Alejandra, Yadi, Supri, Tscharntke, Teja, Veldkamp, Edzo

“…Oil palm plantations are intensively managed agricultural systems that increasingly dominate certain tropical regions. Oil palm monocultures have been…”
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Temporal variation in nitrous oxide ( N 2 O ) fluxes from an oil palm plantation in Indonesia: An ecosystem‐scale analysis by Stiegler, Christian, Koebsch, Franziska, Ali, Ashehad Ashween, June, Tania, Veldkamp, Edzo, Corre, Marife D., Koks, Joost, Tjoa, Aiyen, Knohl, Alexander

“…Abstract The rapidly growing areal extent of oil palm ( Elaeis guineensis Jacq.) plantations and their high fertilizer input raises concerns about their role…”
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Effects of an experimental drought on the functioning of a cacao agroforestry system, Sulawesi, Indonesia by SCHWENDENMANN, LUITGARD, VELDKAMP, EDZO, MOSER, GERALD, HÖLSCHER, DIRK, KÖHLER, MICHAEL, CLOUGH, YANN, ANAS, ISWANDI, DJAJAKIRANA, GUNAWAN, ERASMI, STEFAN, HERTEL, DIETRICH, LEITNER, DANIELA, LEUSCHNER, CHRISTOPH, MICHALZIK, BEATE, PROPASTIN, PAVEL, TJOA, AIYEN, TSCHARNTKE, TEJA, Van STRAATEN, OLIVER

“…Agroforestry systems may play a critical role in reducing the vulnerability of farmers' livelihood to droughts as tree‐based systems provide several mechanisms…”
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Effects of turning rainforest into oil-palm plantations on silicon pools in soils within the first 20 years after the transformation by Greenshields, Britta, von der Lühe, Barbara, Hughes, Harold, Tjoa, Aiyen, Hennings, Nina, Sauer, Daniela

“…Potential effects of land-use/land-cover (LULC) transformation from lowland rainforest into oil-palm plantations on silicon (Si) pools in tropical soils remain…”
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Early Effects of Fertilizer and Herbicide Reduction on Root-Associated Biota in Oil Palm Plantations by Ryadin, Aisjah R., Janz, Dennis, Schneider, Dominik, Tjoa, Aiyen, Irawan, Bambang, Daniel, Rolf, Polle, Andrea

“…To secure high yield, tropical oil palm plantations are fertilized, and understory vegetation is controlled by chemical clearing with herbicides. These…”
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Effects of Wood Hydraulic Properties on Water Use and Productivity of Tropical Rainforest Trees by Kotowska, Martyna M., Link, Roman M., Röll, Alexander, Hertel, Dietrich, Hölscher, Dirk, Waite, Pierre-André, Moser, Gerald, Tjoa, Aiyen, Leuschner, Christoph, Schuldt, Bernhard

“…The efficiency of the water transport system in trees sets physical limits to their productivity and water use. Although the coordination of carbon…”
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Plant Growth Performance of Top Grafted Young Cacao at Various Elevations in Indonesia by Poleuleng, Andi Besse, Agusta, Herdhata, Yahya, Sudirman, Wachjar, Ade, Tjoa, Aiyen

“…The purpose of this study was to evaluate the plant growth performance of top grafted young cacao cultivated in various elevations. This research was conducted…”
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Predominant colonization of Malesian mountains by Australian tree lineages by Brambach, Fabian, Leuschner, Christoph, Tjoa, Aiyen, Culmsee, Heike

“…Aim Massive biota mixing due to plate‐tectonic movement has shaped the biogeography of Malesia and during the colonization process, Asian plant lineages have…”
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How ants, birds and bats affect crop yield along shade gradients in tropical cacao agroforestry by Gras, Pierre, Tscharntke, Teja, Maas, Bea, Tjoa, Aiyen, Hafsah, Awal, Clough, Yann

“…Tropical agroforests are diverse systems where several predator groups shape animal communities and plant–arthropod interactions. Ants, birds and bats in…”
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Hand pollination, not pesticides or fertilizers, increases cocoa yields and farmer income by Toledo-Hernández, Manuel, Tscharntke, Teja, Tjoa, Aiyen, Anshary, Alam, Cyio, Basir, Wanger, Thomas C.

“…•Agrochemical use and hand pollination are known strategies for improving cocoa yield.•13% hand pollination, but neither fertilizer nor pesticide enhancement,…”
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Landscape and farm-level management for conservation of potential pollinators in Indonesian cocoa agroforests by Toledo-Hernández, Manuel, Tscharntke, Teja, Tjoa, Aiyen, Anshary, Alam, Cyio, Basir, Wanger, Thomas C.

“…Cocoa (Theobroma cacao L.), a major commodity globally, depends on insects for pollination. However, the cocoa pollinator identity is largely unknown and there…”
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Large contribution of soil N.sub.2O emission to the global warming potential of a large-scale oil palm plantation despite changing from conventional to reduced management practices by Chen, Guantao, Veldkamp, Edzo, Damris, Muhammad, Irawan, Bambang, Tjoa, Aiyen, Corre, Marife D

“…Conventional management of oil palm plantations, involving high fertilization rate and herbicide application, results in high yield but with large soil…”
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Large contribution of soil N 2 O emission to the global warming potential of a large-scale oil palm plantation despite changing from conventional to reduced management practices by Chen, Guantao, Veldkamp, Edzo, Damris, Muhammad, Irawan, Bambang, Tjoa, Aiyen, Corre, Marife D.

“…Conventional management of oil palm plantations, involving high fertilization rate and herbicide application, results in high yield but with large soil…”
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