-
Even isolates of the same species can vary in response to N availability
Hyphal length rarely, if ever, decreases. In addition, preliminary evidence indicates that soil organic matter associated with mycorrhizal hyphae might become more prevalent. However, few data exist regarding changes in life span or decomposition rate under CO# enrichment, and these processes have strong controls over the long-term accumulation of soil organic matter pools over time.…
-
This has greatly diminished the utility of groundwater as a drought supply
The economic toll of the drought is fewer jobs and smaller value of output and economic contribution that would have otherwise occurred. Based on 564,000 idled acres, Howitt et al. estimates farm revenue losses of $1.8 billion, economy-wide revenue losses of $2.7 billion, and 18,600 fewer jobs due to the agricultural drought. That these economic…