| Abstract |
Luena, is a Moxico province capital city at east of Angola: Latitude 11º 47’ S, Longitude 19º 55’ E and 1357 m height above the sea level; it’s strongly and frequently stricken by rains, at an annual and regional average between of 1200 and 1300 mm. Has a weather with temperatures averaging its maximum between 25.7ºC (June) and 30.4ºC (September) and its minimum between 9.2ºC (June) and 16.2ºC (January and February) and, its relation between rains and evaporation indicates scarceness period (6,5 months: May to October) of water. Based on Kopen, it’s of Cwa type of weather, being a well-defined violently rainy region. According to Thornthwaite, this weather varies between B2 to B3 rarely B4, and rains annually between 1200 to 1300 mm.Therefore, scientific activities are being undertaken to mitigate erosion due to these rains on less vegetated land. Mitigation of these effects could be under mechanical (building barriers or covering sloughing sides with another soil or concrete), biological [diversify cropping practices of agriculture, like the on-going (15.118 agro-forestation plants: 679 Acácia rubra (Delonix regia), 8.525 Acácia mangium, 400 Bambu (Bambusa metake), 2.500 Mussivi (Guibourtia coleosperma), 2.550 Eucalipto (Eucalyptus urograndis), 100 Girassonde (Pterocarpus angolensis, DC), and other integrated for soil fertility recovering plants like 364 Maracujá (Passiflora edulis), Canabrava (Gynerium sagittatum), Tephrosia vogelii, Cajanus cajan, Canavalia ensiformis, Dolichos lablab e leucocephala Leucaaena, Mandioca (Manihot esculenta), Amendoim (Arachis hypogaea L.), sugar cane (Saccharum L.), pea nuts (Arachis hypogaea L.), comum bean (Phaseolus vulgaris), pea (Pisum sativum) and Maize (Zea mays)] and environmental education on the population methods by classifying and describing soil types and its predominant vegetation on maps scaled 1:1 000 000. Like this, it’s being preserved soil (land) fertility and maintains food sustainability to the population. |
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