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Root Distribution of Trees and Crops: Competition and/or Complementary.. Tree-Crops Interactions: A Physiological Approach.. :319-364.. 1996.
Roots as Sinks and Sources of Nutrients and Carbon in Agricultural Systems.. Soil ecology in sustainable agricultural systems. :71-89.. 1997.
Segregate or integrate for multifunctionality and sustained change through landscape agroforestry involving rubber in Indonesia and China. Agroforestry: The Future of Global Land Use. 9. 2012.
Slash-and-Burn Effects on Carbon Stocks in the Humid Tropics.. Global Climate Change and Tropical Ecosystems. Advances in Soil Science.. :99-115.. 2000.
Smallholder Options for Reclaiming and Using Imperata Cylindrica (Alang-Alang) Grasslands in Indonesia.. Slash and Burn: The Search for Alternatives.. :15.. 2005.
Smallholder Risk, Cattle and Deforestation in the Western Brazilian Amazon.. World Animal Review . 93:16-23.. 1999.
Soil and Water Movement: Combining Local and Modellers’ Ecological Knowledge in Scaling Up From Plot to Landscape Level.. Below-ground Interactions in Tropical Agroecosystems: Concepts and models with Multiple Plant Components... 2004.
Soil Architecture and Distribution of Organic Matter.. Structure and Organic Matter Storage In Agricultural Soils, Advance In Soil Science.. :15-57.. 1996.
Southeast Asian Fire Regimes and Land Development Policy. . Terrestrial Ecosystems in a Changing World. :261-271.. 2007.
Sustainability of Tropical Land-Use Systems Following Forest Conversion.. Slash and Burn: The Search for Alternatives... 2005.
Sustainable Forest Management for Smallholder Farmers in the Brazilian Amazon.. Slash and Burn: The Search for Alternatives.. :23.. 2005.
Sustainable Land-Use Systems for Sloping Uplands in Southeast Asia.. Technologies for sustainable agriculture in the tropics.. :41-65.. 1993.
Synchrony of Nutrient Release and Plant Demand: Nature of Plant Litter, Soil Environment and Farmer Management Options.. Plant Litter Decomposition.. :215-229.. 1997.
Technological Change and Biodiversity in the Rubber Agroecosystem of Sumatra.. Tropical Agroecosystems: New Directions for Research. :133-157.. 2003.
A Three Dimensional Dynamic Model of Damar Agroforest in Sumatra (Indonesia).. Enriquez GL, Wasrin UR and Murdiyarso D eds. Tropical Forest Dynamics.. :139-157.. 1998.
Tree-Soil-Crop Interactions in Sequential and Simultaneous Agroforestry Systems.. Bergstrom L and Kirchmann H eds. Carbon and Nutrient Dynamics in Natural and Agricultural Tropical Ecosystems. :172-190.. 1998.
Trees Associated With Rubber in Rubber Agroforestry Systems.. Domestication of agroforestry trees in Southeast Asia. Proceedings of a regional workshop.. 1999.
Use and Potential of Domesticated Trees for Soil Improvement.. Tropical Trees: The Potential for Domestication and the Rebuilding of Forest Resources. :137-147.. 1994.