Role of organic matter in soil pH change in agro-ecosystems

有机质在农业生态系统土壤 pH 变化中的作用

• 批准号: DP0877882
• 负责人: Prof Caixian Tang
• 金额: $ 20.82万
• 依托单位: La Trobe University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2008
• 资助国家: 澳大利亚
• 起止时间: 2008-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0877882
• 关键词: Role; organic; matter; soil; pH

Over 50 million hectares of arable lands in Australia are affected by soil acidity. Acidity-affected lands continue to expand due to the ongoing process of acidification under current farming practices. The project will provide new knowledge essential for the improved use and management of organic matter to minimize or reverse soil acidification and increase carbon sequestration in farming systems. The associated reduction of soil acidification will also minimise the negative impact of nutrient and water losses on the environment. Growers will benefit from the project through improved soil fertility and crop production, and sustainable land use.

澳大利亚有超过5000万公顷的耕地受到土壤酸度的影响。受酸度影响的土地继续扩大，因为在目前的耕作做法下，正在进行酸化过程。该项目将为改进有机物质的使用和管理提供必要的新知识，以最大限度地减少或扭转土壤酸化，增加耕作系统的碳固存。与之相关的土壤酸化的减少也将使养分和水分损失对环境的负面影响降至最低。种植者将从该项目中受益，通过改善土壤肥力和作物产量，以及可持续的土地利用。