Modeling weed population dynamics in Conservation Agriculture systems
摘要
Conservation agriculture (CA) includes three pillars: minimal soil disturbance, permanent soil cover, and crop rotation (Hobbs, 2007; FAO, 2015). Although benefits are context specific, CA has been identified as an effective tool for sustainability, increasing yields, and reducing environmental impacts in many parts of the world (Hobbs, 2007; Giller at al., 2015; Pittelkow et al., 2015). Minimal soil disturbance has repercussions on the provision of ecosystem services, including climate regulation through carbon storage and greenhouse gas emissions, as well as regulation and supply of water through changes in soil’s physical, chemical, and biological attributes. Furthermore, it can impact the underlying biodiversity that is crucial for supporting various ecosystem services (Palm et al., 2014). Choudary et al. (2020) reported that CA was a useful strategy for climate change mitigation and adaptation. Nyanga et al. (2020) have shown that CA reinforces ecosystem services through a number of pathways. The practice of minimum tillage reinforces various regulatory services such as carbon sequestration, climate regulation, and control of soil erosion. Crop rotation, minimum soil disturbance, and plant residue retention support services through nutrient recycling and soil formation habitat provision (Nichols et al., 2015).