DAISY: ecosys: The ecosys modeling program is dedicated to the construction and testing of a comprehensive mathematical model 'ecosys ') of natural and managed ecosystems.
REM The Register of Ecological Models (REM)is a meta-database for existing mathematical models in ecology.
SWAT is a river basin scale model developed to quantify the impact of land management in large watersheds. SWAT is a public domain model supported by the USDA Agricultural Research Service at the Grassland, Soil and Water Research Laboratory in Temple, Texas, USA.
The Rice Wheat Consortium has extensive experience with zero-till in South Asia, including many publications for rice-wheat systems.
Carbon Sequestration and Agriculture
The FAO State of Food and Agriculture 2002 report has a section of carbon sequestration that emphasizes the potential to improve livelihoods of small-holders through systems promoting carbon sequestration.