50 cosas que hay que saber sobre la Tierra

Una pubblicazione che descrive obiettivi e tecnica del trattamento selvicolturale proposto per le pinete artificiali di pino nero dell’Appennino. Si tratta di un diradamento di tipo selettivo finalizzato ad accrescere: la stabilità meccanica complessiva (funzione protettiva), la capacità di crescita delle piante (funzione produttiva), la differenziazione strutturale (funzione di aumento di biodiversità). Il manuale descrive le tecniche adottate che prevedono la scelta di piante candidate ed il taglio delle dirette concorrenti sul piano dominante. L’obiettivo è quello di aprire la...

In recent years, due to expanding populations and industries, regulatory authorities have imposed tighter discharge limits on nutrients from wastewater treatment facilities to avoid eutrophication in water streams. Common methods, such as metal salt precipitation, are being used to lower phosphorus concentrations which are a main contribution. However, alternate phosphorus removal techniques, such as phosphorus crystallisation, can provide further benefits. Precipitated solid can be utilised as a marketable fertiliser. Principles of magnesium and ammonia phosphate precipitation, working with...

El mundo animal está lleno de familias muy diferentes, cada una con sus crías y sus padres. Algunas crías permanecen al lado de su familia durante mucho tiempo; otras tienen que crecer y apañárselas solas muy deprisa, pero todos los animales quieren que sus crías crezcan fuertes y saludables. En este delicioso libro la ilustradora sueca Maja Säfström muestra la enorme diversidad animal y plasma mediante sus características ilustraciones el instinto de todas las especies de cuidar a sus crías, aunque lo hagan de un sinfín de maneras diferentes.

Love Letter to the Earth is Thich Nhat Hanh's passionate appeal for ecological mindfulness and the strengthening of our relationship to the Earth. While many experts point to the enormous complexity in addressing issues ranging from the destruction of ecosystems to the loss of millions of species, Thich Nhat Hanh identifies one key issue as having the potential to create a tipping point. He believes that we need to move beyond the concept of the "environment," as it leads people to experience themselves and Earth as two separate entities and to see the planet only in terms of what it can do...