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Tree-based production systems for Africa’s drylands (Inglês)

Tree-based production systems have enormous potential to reduce vulnerability and increase theresilience of households living in dryland regions of Sub-Saharan Africa. Trees are key providersof biomass, which is critical for many livelihood needs. Wood from trees is the leading source ofenergy in many dryland countries and is an important construction material. Foliage and pods fromtrees and shrubs are the most important source of feed for camels and goats, which are the dominantlivestock species in the more arid parts of the drylands. Trees and shrubs offer enhancedsources of the organic matter needed to improve the structure and raise the fertility of soils used for agriculture. Many parts of trees provide different medicinal products for people. And fruits and vegetable foliage harvested from trees are important seasonal food sources for people living in drylands, and for sale. The benefits from trees take on added value when one considers that they are relatively impervious to many of the shocks that affect other production systems, especially livestock keeping and agriculture. Trees, with their deep rooting systems, maintain their standing value and offer some production even in drought years. They are therefore a good buffer against climatic risk and are a critical element in a diversifi cation strategy designed to maintain levels of consumption and income in good times and bad. In addition, their value can be tapped when it is most needed: wood from trees can be harvested throughout the year, and many annual tree products are harvested at times different from the times when annual crops are harvested. Tree-Based Production Systems for Africa’s Drylands identifies some of the most promising investment opportunities at the level of tree-based systems, species (products), and well-defined management practices for accelerating rural economic growth in the drylands.

Detalhes

  • Autor

    Place,Frank M., Garrity,Dennis Philip, Mohan,Sid, Agostini,Paola

  • Data do documento

    2016/08/24

  • TIpo de documento

    Publicação

  • No. do relatório

    108020

  • Nº do volume

    1

  • Total Volume(s)

    1

  • País

    África,

  • Região

    África,

  • Data de divulgação

    2016/08/25

  • Disclosure Status

    Disclosed

  • Nome do documento

    Tree-based production systems for Africa’s drylands

  • Palavras-chave

    trees in crop fields;environment & natural resource;Environment and Natural Resources;per capita daily consumption;positive return on investment;natural regeneration;source of energy;Natural Resource Management;extreme weather event;tree product;rural economic growth;variation in climate;primary energy consumption;human population growth;intensity of drought;privileges and immunity;Violent Social Conflict;rapid population growth;availability of water;crop and livestock;lack of water;sources of water;crop water stress;soil moisture storage;types of asset;soil organic matter;price for food;exposure to risk;natural resource service;annual food crop;natural resource base;shortage food;area of plantation;fruit and vegetable;gum and resins;level of consumption;rural population growth;diversity of species;production system;dry season;fuel wood;land use;tree species;dryland area;root systems;natural hazard;community land;natural capital;wood production;tree cover;gum arabic;agricultural land;drought year;annual crop;tree planting;construction material;research fellow;livestock keeping;grain filling;drought effect;coping strategy;maturity period;soil fertility;environmental vulnerability;crop canopy;investment opportunities;dry area;semi-arid zone;livelihood approach;crop production;soil health;wind speed;dust storm;watershed protection;rural resident;environmental service;tree regeneration;crop yield;drought period;grazing management;seasonal rainfall;livestock price;pest outbreak;earned income;social change;pasture grass;extreme poverty;fodder supply;livestock asset;livestock fodder;fodder resource;asset base;long-term drought;Livestock Production;energy production;household asset;cost of energy production;respiration rate;average temperature;woody species;agricultural landscape;crop performance;long-term effect;rural area;weather shock;price shock;human consumption;smallholder farmer;outgrower scheme;drought stress;land resource;land resources;community woodlots;farm land;health shock;watershed rehabilitation;timber production;timber tree;longer period;charcoal use;imported oil;woody perennial;traded commodity;cooking fuel;energy source;ecological function;high humidity;global temperature;rainfall regime;fruit production;home consumption;exotic species;economic crisis;hydraulic lift;soil surface;deep depth;transfer water;nutrient availability;macro level;long-term investment;commodity traded;vapor pressure;surface runoff;solar radiation;staple food;nutritional level;forest regulation;aboveground carbon;cereal yield;climate variation;discount rate;young trees;agricultural area;tree nurseries;semi-arid area;dry weight;indigenous species;agricultural method;increased investment;land surface;disproportionate share;adequate income;global food;fuel price;livestock species;humanitarian crisis;land degradation;humanitarian aid;community group;community level;natural biological;local landscape;fire management;tenure security;investment financing;drylands investment;export demand;non-governmental organization;development pathway;agricultural commodity;systems approach;individual farmer;local condition;cocoa butter;small fraction;export product;Carbon sequestration;development partner;seasonal food;protected area;increase productivity;community resilience;ecosystem service;study design;adaptive response;tree seedlings;technology adoption;collaborative effort;food price;medicinal products;coping capacity;excess stock;export market;wood market;mature trees;livestock nutrition;content creator;water scarcity;biodiversity loss;political will;sustainable livelihood;external resource;comprehensive strategy;policy option;exogenous shock;woody vegetation;commercial purpose;sole responsibility;copyright owner;cashew nut;original work;agroforestry practice;diversification strategy;tenure system;climatic risk;small-scale farming;global partnership;agricultural sector;environmental economist;service benefit;soil improvement;basic infrastructure

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