Generally, the leafs are still intact and as a result, gross primary production stays the same.

Contributing 0.3% of gross domestic production in 2010.

First, he noted that under heavy grazing pressure, net growth can vary independent of gross production.

Depending upon the incubation time chosen, net or gross primary production can be estimated.

As gross domestic production grew in European countries, trade grew.

Thus, gross production between 1985 and 1987 attained levels not matched since the mid-1960s.

The enhancing the income and the gross national production.

However, increased levels of CO in the atmosphere can also lead to higher gross primary production.

Ta on production is 1/6 of the gross production.

The Romanans own ten percent of all Sirian gross economic production.