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Managing the Miombo Woodlands of Southern Africa Policies, incentives and options


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3Forest resources in Zambia


Zambia’s forest resources – woodlands and dry forests – cover about 42 percent of the total land area (FAO 2005). About 9.0 percent of the forests in Zambia are gazetted as protected forest areas or local forest reserves, although encroachments in forest reserves are a major problem (GRZ 2006b). The rest of the forests are ungazetted, mainly found on traditional or state land and within the municipalities for human settlement, farming and infrastructural development. These ungazetted areas fall under the jurisdiction of the Commissioner of Lands, Councils or Traditional rulers. The country has about 50,000 hectares of plantation forests that are being managed by ZAFFICO in the Copperbelt Province, as well as about 10,000 hectares of local and regional forest plantations in most provinces, established to meet the local demands for soft wood, timber and other forest products (GRZ 2006b). The country’s vegetation can be classified into three main categories: closed forests in south-western Zambia; dry woodlands of the large valleys; and the extensive miombo woodlands dominated by Brachystegia and Isoberlinia found on the plateaus throughout the rest of the country.
The indigenous forests in Zambia are rich in biodiversity and are home to approximately 5,500 species of flowering plants, 88 species of mosses and 146 species of ferns. These forests are not rich in commercial timber species, with the exception of a few hardwoods (i.e. Baikiaea plurijuga, Tectona grandis and Pterocarpus angolensis) at stocking rates of 0.5 to 2.0 tons per hectare (GRZ, 1997). Other forest products, such as woodfuels and foods, however, are abundant and contribute significantly to local livelihoods.
Estimates of the rate of deforestation are alarmingly high (851,000 ha/year: FAO, 2001; 900,000 ha/year: GRZ, 2006a). The FAO study concludes that the losses in Zambia amount to almost 50% of the total deforestation in the Southern African region. The Government has acknowledged deforestation to be the country’s major environmental problem, and attributes it mainly to clearing land for agricultural expansion and settlements (GRZ, 2006b). Due to poverty and lack of agricultural inputs, shifting cultivation remains a dominant form of agriculture across the country. The chitemene system (see 4.1.5 below), practiced in Northern, Luapula and Central Provinces, has been labeled as particularly responsible for deforestation (Holden, 1993). The harvest of forest products for domestic use and sale, woodfuels and timber in particular, as well as forest fires, also contribute to deforestation. However, lack of proper management regimes and limited institutional capacity in the Forestry Department have been identified as important factors for the destructive extraction levels (Shitima, 2005; GRZ, 1997).

4Contributions to households

4.1Some major forest products



Table 3: Range of forest-based income in user households

in Luapula and Northwestern provinces in 2002

Economic

activity

Luapula province

Northwestern province

Average cash income (Zambian Kwacha)

Active households (%)

Average cash income (Zambian Kwacha)

Active households (%)

Forest-based cash income

Bamboo sales

118,111

3.1

90,000

0.2

Beekeeping

82,160

4.3

226,634

9.0

Carpentry

287,083

2.1

351,810

6.4

Medicinal plant sales

156,0911

2

33,200

0.8

Munkoyo sales

65,217

14.4

110,162

5.7

Rattan sales

225,000

0.2

65,200

0.8

Timber sales

334,000

3.5

101,550

3.1

Other cash income

Beer sales

155,587

19

95,660

7

Crop sales

201,701

59

220,232

48

Fish sales

169,314

9

152,463

6.1

Piece work

143,736

9

391,656

10

Livestock sales

147,788

7

140,365

8

Trading

319,179

9

412,083

2

Source: Puustjärvi et al. 2005
Forests play an important role in rural livelihoods, providing a wide range of products and services for both subsistence use and cash income. Using data from baseline studies of the Forest Resource Management Project, Puustjärvy et al. (2005) calculated cash incomes derived from a number of forest products in Luapula and Northwestern provinces (Table 3). The average total annual cash income in Luapula province was ZMK389,848 and Northwestern province ZMK390,326 (Puustjärvy et al. 2005). Livelihoods are based on a combination of activities, and forest-based activities such as carpentry, beekeeping and timber and rattan sales may provide more than 50% of the average household income. The main forest products contributing to household incomes vary between the two areas. In Luapula province cash incomes from carpentry, rattan and timber sales exceed those of crop production, although less than 4% of the total households are involved in these forest activities. In Northwestern province beekeeping is an important source of income, as well as carpentry.

Most forest product harvesting and sale is seasonal, providing cash income at different times of the year, and few households use only one product. Furthermore, within households men and women often harvest and sell different products. We discuss some specific forest products in more detail, drawing on those for which there are significant sources of data.


4.1.1Charcoal and firewood


In many areas, charcoal production is an important source of cash income. In 1997, the Government estimated that 41,000 rural households were full-time employed in charcoal production and an additional 4500 people involved in transportation, marketing and distribution (GRZ, 1997). Few rural households specialize in one full-time activity and it is therefore likely that the total number of households benefiting financially from the charcoal industry is much higher. Approximately 9000 households, in Chongwe district alone in 2000, were involved in charcoal production, supplying the product to Lusaka (Chidumayo, 2001). Most became charcoal producers during the previous decade, because of low profitability of crop production and lack of capital for farm inputs and machinery. The average per capita income from charcoal production was 4.8 times higher than that from farming (Chidumayo, 2001).

4.1.2Honey


Northwestern Province is the main beekeeping area in Zambia with an estimated 70 percent of the country’s beekeepers living in this province (ITC/DTCC, 2007). They produce between 90 and 95 percent of locally traded and 100 percent of the exported honey. Nearly all beekeepers are male farmers, who earn approximately US$100 per year per household from this activity (Mickels-Kokwe, 2006). There are two main seasons for harvesting honey in miombo woodlands. The flowering of Brachystegia species contributes to the flow of honey between October and December across the country. This provides farmers with cash at the start of the planting season to pay for agricultural inputs, and school fees. A second honey flow occurs in May-June in areas with plenty of Julbernardia and Marquesia.

4.1.3Wild foods


Mushrooms, fruits, leafy vegetables, tubers and insects collected from miombo woodlands are widely consumed by rural households and enrich their starch-based diets with important vitamins and minerals. These foods are often available at the start of the rainy season and thereby serve as an important gap-filler when food stocks are low (Packham, 1993; Chileshe, 2005). Furthermore, for many rural women, trade in forest foods is an important source of cash. More than fifty trees bearing edible fruits are found in the miombo woodlands. Farmers often acknowledge the value of indigenous fruit trees and retain and protect the trees on their fields (Akkinnifesi, 2006). However, wild fruits are less important for income generation due to the distance to markets and their short shelf life.
Approximately 25 different edible mushroom species have been documented in Zambia (Pegler and Pearce, 1980). In Chiulukire local forest, Eastern Province, eleven species are commonly collected during the rainy season. Women are responsible for collecting mushrooms and they usually do this when returning from their maize fields. Only a small proportion is consumed fresh. Ninety percent is dried, after which they are wrapped in leaves of Uapaca kirkiana and tied with fiber for later use (Mutale and Haamukwanza, 2000). The trade of mushrooms is visibly substantial, though volumes traded at national level are unknown. Fresh mushrooms are popular during the rainy season with substantial value addition along the market chain: they fetch approximately ZMK10,000/kg in rural areas and three to four times that amount in urban markets (Husselman, pers. obs. 2007). One company in Lusaka packages dried ubowa mushrooms for sale in grocery shops and supermarkets.
Roots of various species (including Rychnosia, Eminia and Vigna) are harvested to make munkoyo, a fermented non-alcoholic beverage (Zulu et al., 1997). Munkoyo is a popular local soft drink, in particular amongst women and children, and also used during traditional ceremonies (Malungo, 2001). The roots are sold fresh or dried.
A variety of insects is consumed in Zambia and these provide an important source of protein and household income (Illgner and Nel, 2000). More than 60 species of insects in at least 15 families and 6 orders have been reported as food in Zambia (DeFoliart, 1999). Silow (in DeFoliart, 1999) explains termites (Macrotermes species) were considered better than the meat of mammals and birds. Caterpillars were rated second best. The most popular edible insects, in terms of total consumption and trade, are caterpillars of which the majority belongs to the giant silk moth family Saturniidae. The most well known species in the Southern African region is Gonimbrasia belina, locally known as mopane worm. Thirty-one species of edible caterpillars are found in Zambia, of which seven are marketed (DeFoliart, 1999). Mbata et al. (2002) describe the use of caterpillars among the Bisa people in Northern Province. The majority of people in that area prefer Gynanisa maja, locally known as chipumi. It is large, thornless, and tasty, and fetches the highest price on the market. In November and December people collect the caterpillars mostly from regenerating woodlands that had previously been cleared and then left to fallow. The market for these edible insects is very large in all Zambian cities and even extends to Zimbabwe and the Democratic Republic of Congo. In 2000, the farm gate price for one meda (or gallon) was more than US$4 (Mbata et al., 2002). When the bush is rich with caterpillars, a person can collect up to 20 liters a day, and seven days of collecting can earn the equivalent of a month’s salary for a general worker (DeFoliart, 1999). Traders may travel nearly one thousand kilometers to buy caterpillars. In Kasanka National Park, Northern Province, trade in caterpillars has always been a main source of income, and local chiefs receive a handsome share of this income, which encourages them to promote caterpillar breeding. Nevertheless, villagers reported a decrease in availability during the past decades due to a decline in overall tree cover (Eriksen, 2007). Sometimes trees are cut to facilitate the harvesting of caterpillars, but caterpillars may also provide an incentive for people to regulate bush fires, thereby protecting caterpillars and enhancing woodland regeneration (DeFoliart, 1995).
A study in 2001 recorded the amounts of wild foods collected and consumed during a period of 12 months in Kamena Village, Northern Province (Chileshe, 2005). Collection of wild vegetables and mushrooms is done by women and coincides with their chitemene tasks of sowing, planting and weeding. Bartering wild foods for staples is common between wealthier households with bigger plots, and poorer households. Some households act as middlemen purchasing caterpillars from fellow households for sale in urban markets. Poor households collect these foods more frequently than wealthier households and as a result the direct-use value of these foods is considerably higher for poorer households. Moreover, whereas collection and trade of other commercialized forest products, such as honey and charcoal, is controlled by men, mushrooms, fruits, vegetables and insects are considered activities for women and children. The value of the caterpillars collected and consumed by individual households was calculated using local market prices (Table 4).

4.1.4

Table 4: Average values of wild foods for individual households

in Kamena Village (Zambian Kwacha)




Leafy vegetables

Mushrooms

Caterpillars

Number of species commonly consumed

10

9

7

Number of meals per year

94

127

122

Direct-use value of consumed product

K47,225

K312,250

K350,250

Value of sales

K103,500

K247,500

K440,000

Total value of collected product (values in brackets are for wealthiest and poorest households, respectively)

K98,975 (K15,600-K172,800)

K559,750 (K161,100- K1,063,800)

K790,250 (K531,500- K1,071,500)

Source: Chileshe, 2005
Medicinal plants


Roots, shoots, leaves and bark of many plants, as well as animal products, are used for healing and protective purposes. Plant-derived medicines are used in self-treatment of common ailments, such as coughs, headaches and stomach problems, but for more serious diseases people consult traditional healers. There are about 30-50 plants used for medicinal purposes and there is a flourishing market in urban areas, where traditional healers sell both plant extracts and remedies (Puustjärvy et al. 2005). On average a healer earns a monthly income of US$147 (Nswana, 1998). In Chiawa chiefdom, a total of 19 different indigenous plant species are used to treat sexually transmitted diseases, including Strychnos cocculoides, Musa species, Solanum delagoense, Ximenia caffra, Diplorhynchus condylocarpon and Croton megalobotrys. All these species were found within easy reach of the villages (Ndubani and Höjer, 1999). There is almost no quantitative data on medicinal plant use and trade.

4.1.5Chitemene agriculture


Miombo woodland provides a crucial environmental service to agriculture in parts of Zambia, through the so-called chitemene system. Chitemene (meaning to cut) is practiced by the Bemba people of Northern, Central and Luapula Provinces. Burning woody biomass from forests forms the basis of this farming system and is intended to fertilize the acid, nutrient poor soils in the region. Compared to other forms of shifting cultivation, the chitemene is unique in several ways. Trees and branches are cut on an area 2-20 times the size of the cultivated garden (Stromgaard, 1985, 1989). These are piled on a central field where they are burnt. There is thus a transfer of fertilizing material from a larger surrounding forest area to a central field. Burning may increase soil NH3-N content by 40-50%, as well as increase the content of other major nutrients such as P, K, Ca, Mg and Na (Chidumayo, 1987). Farmers cultivate crops on the ash circles for 3-4 years and then move to a new field. Although, theoretically there is enough forest land for rotations of sustainable duration, people only use a fraction of the available land; ninety percent of the chitemene fields are found within about 5-6 km of roads (Sprague and Oyama, 1998). Increasing population pressure is causing more and smaller trees felled, less area left to fallow, and less woodland available as a potential source of ash (Stromgaard, 1987). Nevertheless Sprague and Oyama (1998) suggest that chitemene is probably less destructive than other forms of shifting cultivation, because often branches are cut from the wider area, instead of whole trees, and only a relatively small field is burnt. In the area west of Mpika, Northern Province, the total area under chitemene decreased between 1984 and 1992, due to an increase in the use of fertilizers. However, the average distance from chitemene fields to roads had increased. This was likely the result of more farmers using bicycles, which enables them to move to more distant places and select better quality woodlands for clearing (Sprague and Oyama, 1998). Farmers are obviously well aware of the value of these woodlands for crop production. In areas with abundant woodlands, farmers deliberately choose to continue with the traditional chitemene rather than the modern, capital intensive fertilizer and hybrid maize technology (Holden, 1993). As agricultural inputs become more expensive, it is likely that more farmers are returning to cultivating chitemene.
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