Results 171 to 180 of about 2,080,968 (299)

Useful trees in reforestation planning at the Biosphere Reserve «Buenavista», Cuba

open access: yesRevista Cubana de Ciencias Forestales, 2015
In Cuba, Biosphere Reserves protect and keep natural areas of variable size including one or several forest, scrub or grassland vegetation units, either primary or secondary, also taking into account the various kinds of complex vegetation and ...
Pedro Herrera Oliver   +7 more
doaj  

El medio ambiente urbano

open access: yesGestión y Ambiente, 2008
En Colombia,  los Grupos  de Estudios Ambientales Urbanos ­GEA­UR­ que integran desde 1992  la  Red  Latinoamericana  de  Estudios  Ambientales  Urbanos,  han  planteado  una  nueva forma  de  interpretar  la  ciudad  desde  la  perspectiva  ambiental,  a  partir  de  estudios  de  caso  que permitieron  construir  propuestas  teóricas  y ...
Ángel Maya, Augusto   +1 more
openaire   +2 more sources

Medio ambiente y comercio: El caso de Mercosur y los principios de Winnipeg [PDF]

open access: bronze, 2001
Patricia I. Vásquez   +8 more
openalex   +1 more source

Effect of four species of arbuscular mycorrhizal fungi on the production of tomato fruits

open access: yesAgronomía Costarricense, 2015
The effect of native arbuscular mycorrhizal fungi (AMF) Glomus sp. 1, Glomus sp. 2, Glomus clarum and Glomus intraradices on tomato (Solanum lycopersicum L.
Juan Francisco Ley-Rivas   +3 more
doaj  

Home - About - Disclaimer - Privacy