Devegetation has what effect on ecosystem dynamics? a. It increases belowground biomass. b. It increases nutrient export. c. It increases NPP. d. It increases soil organic matter.

Verified step by step guidance

1. Understand the term 'devegetation', which refers to the removal or destruction of vegetation in an area.
2. Consider how the removal of plants might affect the ecosystem, particularly focusing on aspects like biomass, nutrient cycles, and soil composition.
3. Analyze how the absence of plants could lead to increased nutrient export. Without plants to absorb and utilize nutrients, more nutrients might be washed away from the soil, especially during rainfalls.
4. Evaluate the other options in relation to the effects of plant removal: belowground biomass typically decreases without plant roots, NPP (Net Primary Productivity) decreases due to the lack of photosynthesis, and soil organic matter often reduces without plant material contributing to it.
5. Conclude which option best fits the effects of devegetation on ecosystem dynamics based on the analysis of each option's impact on the ecosystem.