Quote:
Originally Posted by echinosum
Ph. aurea was introduced to the Azores where it has become an invasive weed and taken over whole hillsides to the detriment of other vegetation. I don't think it is welcome.
In Ethiopia, following massive deforestation, and a chronic shortage of wood for fuel, fast-growing Eucalytus was thought an ideal solution - once. Now it increasingly looks like a serious pest, as it sucks water out of the soil very hard and impedes the restoratoin of the natural vegetation.
You can go to Chile and NZ, and see massive areas of monoculture forestry of introduced species, and little but introduced species in most other areas too. The result is that the native species, both animal and plant, are squeezed out because of habitat loss.
Sure places like Madagascar need a lot of land remediation, as much of the land has been deforested and then become useless even for agriculture after soil damage. But I think you have to be very careful in recommending such things as universal solutions. You need to be sure the plant will not be invasive nor impede the regeneration of the natural vegetation.
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Nitrate Reductase（NR）
There are two ways to soil from nitrates to acidification: one is carbon cycle leads to soil acidification, that is anion (base) in bamboo to be removed by bamboo biomass to be removed from the forest. The other is nitrogen cycle leads to soil acidification. Nitrate Reductase（NR）is the key enzyme in Nitrate Metabolism. Its catalytic reaction is as below: NO3 + NADH+H+ to NO2 +NAD+H2O. Rise its activities will help degradation of nitrite. Nitrate is main nitrogen sources for most plants. Nitrate convert to Ammonia by nitrate reduction, and then combine to protein with carbohydrate, forms protoplasm of plant cell and the other nitrogen components. Nitrate Reductase activity high, its net photosynthesis rate is high also. Moso bamboo can cumulate big quantity of biomass, is due to its nitrate reductase activity is high. Because of bamboo materials and bamboo shoots are removed out of forest every year, , the consumption of system nutrient more than complementary, so the content of N total in soil to be reduced evidently.
The testing of results of NR activity in leaves of Moso bamboo (Phyllostachys edulis) is 139.71 ug/g/h. (Leaves Physilogical and Biochemical Characters of Phyllostachys edulis. ，Hu Fangming, Du Tianzhen, Yang Guangyao, Chen Hongwe, Zhu Junyin. Jiangxi Agricultural University, Nanchang, Jiangxi, China and Central south Forest University．Changsha, Hunan, China)