Answer:
a) Expanding forest area
b) Practicing mixed land use in urban Areas
Step-by-step explanation:
Following land use decision have positive impact on carbon cycle-
a) Expanding forest area- Conversion of open land into forest land - Planting of trees allows storage of carbon( in the atmosphere) with in the trees and plants and thus in this way the free carbon is made part of existing carbon cycle.
b) Practicing mixed land use in urban Areas - Promoting land use with good mix of vegetation and concrete (human built structure) in order to reduce the heat in the cities due to the green house gases