Which of the following ecosystems would likely have a larger net primary productivity per hectare, and why?
1) Grassland ecosystem, because grasses have high photosynthetic rates and can quickly regenerate after being grazed upon.
2) Forest ecosystem, because trees have a larger biomass and can store more carbon dioxide through photosynthesis.
3) Desert ecosystem, because desert plants have adapted to conserve water and can efficiently use available resources.
4) Aquatic ecosystem, because water provides a favorable environment for photosynthetic organisms to thrive.