Community perception to pay for conservation of Barekese and Owabi watersheds in Ghana.

There is growing concern globally to conserve natural systems including watersheds due to increasing forest degradation and deforestation. The Barekese and Owabi watersheds provide several ecosystem services to communities, health facilities and industries. The watersheds are found in a rapidly degrading environment due to increasing anthropogenic activities. This paper addressed the neglected, but critical, question of the importance of watershed ecosystem services. The objective of the study was to determine willingness of households in downstream communities to pay for watershed conservation and the drivers of WTP. Households were willing to pay a mean of $1.5 ± 0.2 additional on their monthly water bills. Quotations for Willingness to pay varied from as low as $0.02 to as high as $ 20.58 per month. Age, household size and years of residence were significantly related with willingness to pay, amount to pay and reasons for protest bids. The younger generations and women were ready to pay extra amount for watershed management. The results indicated that downstream communities are willing to support conservation and that demographic factors influence the amount people are willing to pay. The concept of WTP is useful and applicable to conservation of watersheds in the tropics through the design and implementation of PES schemes. It also provides important information for conservation and development policies related to watershed management in developing countries.

Rubber and plantain intercropping: Effects of different planting densities on soil characteristics.

Two field experiments were conducted at Ellembelle and Jomoro districts in the Western region of Ghana where rubber cultivation is a predominant farming activity. The objective of the study was to assess the effect of rubber and plantain intercropping systems on selected soil properties. The experiment was arranged in a randomized complete block design (RCBD) with 3 replications. The treatments were the sole crop rubber (R), sole crop plantain (P) and three intercrop systems comprising an additive series of plantain: one row of plantain to one row of rubber (PR), two rows of plantain to one row of rubber (PPR) and three rows of plantain to one row of rubber (PPPR). Generally, agroforestry systems improved the soil hydraulic properties considerably, with the highest cumulative infiltration rates of 5.16 and 8.68 cm/min observed under the PPPR systems at the Ellembelle and Jomoro sites, respectively. Microbial biomass C (Cmic), N (Nmic) and P (Pmic) was significantly improved (P < 0.05) under the agroforestry than the monocrop systems. The Cmic, Nmic and Pmic values were highest under the PPPR system at both Ellembelle (Cmic, = 139.9 mg/kg; Nmic = 36.26 mg/kg and Pmic = 87.6 mg/kg) and Jomoro (Cmic = 78.7 mg/kg; Nmic = 80.3 mg/kg and Pmic = 3.45 mg/kg) sites.