Edward L. Webb

Land use dynamics and landscape change pattern in a mountain watershed in Nepal

This study analyzed spatial and temporal changes in land use/land cover in a typical mountain watershed covering an area of 153 km 2 in central Nepal by comparing classified satellite images from 1976, 1989 and 2000 coupled by GIS analyses and also investigated changes in the shape of land use patches over the period. The results show an increase in broadleaf forest, conifer forest and winter-cropped lowland agricultural area and decrease in area under shrublands, grasslands and upland agriculture in between 1976 and 2000, although shrublands increased during the second half (1989–2000) of the study period. The number of forest patches decreased substantially in between 1976 and 2000 suggesting merger of patches in the latter periods due to forest regeneration and/or plantation establishment on lands previously separating two or more forest patches. A shape complexity index (SCI) used to study patchiness of land use indicated improved forest habitat in the watershed but increased mean deviation between actual and optimal SCI of forest polygons indicated higher edge effects at the forest patch level during the latter periods. One of the significant changes within non-forestry land use was increased fragmentation of lowland agricultural areas due to expansion of settlements and infrastructural development in the lowlands.

A review of forest policies, institutions, and changes in the resource condition in Nepal

SUMMARY This paper reviews the evolution of forest policies and forestry institutions in Nepal and tracks the accompanying trends of change in the countrys forest cover over the last century. Our objective is to provide an essential foundation to the policy reform process that is underway in Nepal and many other Asian countries. The review shows that before 1957 the Nepalese governments focus was on conversion of forestlands to farmlands, and extraction of timber for export. After the nationalisation of the forests in 1957 until 1976, policy-making efforts were oriented towards national control of forests through stringent laws and expansion of the forest bureaucracy. This approach failed as evidenced by widespread deforestation and forest degradation across the country during the 1960s through 1980s. Early efforts of the government and donor agencies to rectify the problem through reforestation and afforestation also largely failed, but these efforts paved the way for subsequent initiation of the participatory approach to forest management in the late 1970s. Since then, community-based forest management evolved continuously under the aegis of supportive forest policies and legislations. The present community forestry program has met with notable successes in some areas. However, the program has been confronted with some contentious issues in recent years including a policy debate over the suitability of forests in the southern lowlands (the terai) for community management and sharing of income obtained from community forests. These and some other issues surrounding the community forestry program are discussed and their implications for designing or improving future forest governance have been identified.

GIS Assessment of Land Use/Land Cover Changes Associated With Community Forestry Implementation in the Middle Hills of Nepal

Abstract This study analyzed the spatial and temporal changes in land use between 1978 and 1992 in a typical watershed covering 543 km2 in the Middle Hills of Nepal and used GIS to compare land use changes between village development committees (VDCs) with and without formally handed-over community forests during this period. The forest handover procedure followed the specifications of the national community forestry policy of Nepal. In the watershed, the total area of forested land (defined as high forest plus shrubland) declined by about 8% during the period. However, high forest increased over the study period, whereas shrubland cover declined. Between VDCs with community forests and those without, there were large differences in the rate of total forested area loss, with community forest VDCs losing less total forested area over the 14-year period. Moreover, in the group of VDCs with community forests, high forest area increased by 77%, in comparison with 13% for VDCs without community forests. Higher shrub loss in community forest VDCs was attributable to conversion into high forest via plantation establishment and natural succession. The results of this study indicate the positive impacts of Nepals community forestry activities on the extent of forest cover.

Using local user perceptions to evaluate outcomes of protected area management in the Sagay Marine Reserve, Philippines

Local user perceptions of resource trajectory and indicators of protected area outcomes can be useful in the assessment of integrated conservation projects, both marine and terrestrial. In-depth stakeholder surveys using 12 performance indicators were used to evaluate the perceived outcomes of the Sagay Marine Reserve (SMR), the Philippines. These indicators were a measure of whether the SMR had achieved its management objectives in the recent past and what local stakeholders expected in the future. The respondents contextual situation could be correlated with their perceptions of SMR indicators. There was a generally high level of perceived equity and efficiency of SMR management outcomes, but the sustainability of the SMR, particularly the condition of the fisheries, had been poor over the previous 10 years. Few anticipated an improvement in sustainability indicators over the next 10 years. Respondents from an island village within the SMR had more negative (or less positive) perceptions of SMR outcomes because of their high dependence on the degraded resource, combined with physical and economic isolation. Specific remedies to enhance island villagers satisfaction, such as greater participation, empowerment, alternative economic opportunities and fisheries protection, and replenishment, are necessary. This research serves as an example of how indicators perceived by local resource-accessing stakeholders can and should be main components of both marine and terrestrial protected area assessment.

Structure and diversity of natural and managed sal (Shorea robusta Gaertn.f.) forest in the Terai of Nepal

The Shorea robusta Gaertn.f. forests of Nepal represent a highly valuable resource for both local communities and regional industry. Timber productivity of plantations in the Terai is well known; alternative management scenarios for Terai sal forests should be considered in terms of biodiversity conservation and potential impacts on community livelihood. This study investigated the regeneration of sal forest recovering from two forest management strategies in the Terai of Nepal: clearcutting and abandonment (successional), and clearcutting followed by the establishment and protected regeneration in Eucalyptus camaldulensis plantations (taungya). We report three principal findings. First, even though total tree abundances in all treatments were high, all species except S. robusta exhibited decreased abundances in managed forest after 20 years of protected regeneration. This effect was particularly evident in regenerating plantations. Second, successional sal forest recovered most of the species richness in 20 years, even though most tree species were in lower abundances. Third, the contribution of abandoned plantations to rural livelihoods would be linked with the plantation species only, whereas successional sal forest would provide a wider array of livelihood resources. In general, these results corroborate the existing literature on Shorea forest management and regeneration in the Terai indicating a severe decline in botanical diversity in taungya forest, and robust regeneration of Shorea populations during natural forest management in Nepal. Although sal forests may provide a wider variety of livelihood products, a full analysis of forest ‘value’ must be undertaken to establish the optimal land use systems in the Terai.

Collection and marketing of non-timber forest products in the far western hills of Nepal

Non–timber forest product (NTFP) use is an integral part of the rural economy of Nepal, but little is known about NTFP collection and marketing dynamics. This study investigated the intensity of NTFP collection, the financial benefits gained through the collection of a representative species, and the contextual factors influencing NTFP collection and sale in 12 villages of the Baitadi district of far western Nepal. Thirty-nine per cent of the economically active population collected a total of 24 NTFPs from 23 species, which contributed 0–90% of the total household income. A marketing chain and financial analysis of Valeriana jatamansi ( sugandhwal ) revealed that various trading and marketing channels existed from the village to district-level NTFP outlets. The price received by the collector depended on the length of the market chain and the political context of the market. Political instability resulting from the Maoist insurgency reduced profits from sugandhwal sale by 23–25%. The number of NTFP-selling outlets accessed by collectors was the most important variable determining the number of NTFPs collected and the overall contribution of NTFPs to the household. Physical accessibility of the village did not impact the contribution of NTFPs to the household livelihood. The strength of NTFP-related institutions (both government and non-governmental organizations) decreased the total NTFP contribution to livelihoods because at the time of the study the villages were in transition to domestication of NTFPs. In the future, the contribution of domesticated NTFPs to households in villages with strong NTFP-related institutions should be much greater than at present. Increasing access to NTFP-selling outlets may be achieved through information dissemination, empowerment of collectors and establishment of linkages between collectors and traders. In general, domestication is an important strategy to ensure a continuous supply of NTFPs. Middlemen traders are seen as important stabilizers of prices as long as fair trading practices are followed. Monitoring of these villages over time will also provide important new quantitative information on the process of transition in rural villages changing from a forest-collection NTFP procurement strategy to a domestication procurement strategy.

Household and homegarden characteristics in southwestern Bangladesh

Homegardens around the world often exhibit remarkable variation in composition and structure depending on the physiographic and climatic conditions of the area and a wide variety of household characteristics. This research investigated whether households’ contextual attributes have a quantitative and predictable relationship with homegarden vegetation structure from a total of 402 randomly selected households in southwestern Bangladesh. The central analytical tool to test the relationship between household characteristics and the homegarden vegetation structure was multiple regression. The moderate to low regression R2 values revealed that most household characteristics were not strong predictors of homegarden vegetation structure. Despite the weak explanatory power of the majority household characteristics, time spent and homestead size had the strongest relationship with species richness and income in a homegarden. Households being the main source of labor for a majority of households suggest that outside labor shortage would not influence homegarden vegetation structure. We suggest that women’s active participation in homegardening activities to reduce gender inequality in the family which will perhaps result in more diverse and economically viable homegarden. However, increasing population density and the concomitant fragmentation of landholdings to homesteads may create opportunity for homegarden promotion in Bangladesh. Our results of decreased species richness in the homegarden with improved roads and proximity to market support the general hypothesis of subsistence homegardens and did not reinforce the general fears of gradual decline in species richness due to a market economy. Household characteristics had no influence on the presence of IUCN Red Listed species in the homegarden, except for gender and education of the household head. However, most homegardeners were unaware about the status of red listed species, suggesting that occurrence of red listed species in homegardens was by chance. Thus, efforts to improve awareness and to save and conserve rare species from extirpation are needed.

A survey of stock of the donkey’s ear abalone, Haliotis asinina L. in the Sagay Marine Reserve, Philippines: evaluating the effectiveness of marine protected area enforcement

Abstract Marine protected areas (MPA) are tools for integrated coastal management (ICM); they have gained worldwide acceptance as a strategy for resource restoration and conservation. Research must gauge the effectiveness of MPA implementation in promoting fisheries recovery. This study investigated the effectiveness of enforcement in the Sagay Marine Reserve (SMR), western Philippines, in promoting the recovery of abalone stock. Enforcement of protection in the SMR is accomplished through the bantay-dagat (sea patrol), which utilizes reef watchtowers to deter illegal activities. The abalone populations in two protected reefs (well-enforced protection) and two open access reefs (poorly enforced protection) in the SMR were surveyed using 50 m ×2 xa0m belt transects. Abalone density was significantly greater, and abalone were larger, on protected than on unprotected reefs. However, we found that recruitment appeared limited at all sites, and that abalone tended to be sexually mature at small sizes. This may indicate that the population has been near a critical threshold, that recent climatic events may have suppressed recovery rates, and/or that enforcement and rule compliance was low and with continued poaching. Nevertheless, the results of this study agree with findings of other research that a properly enforced no-take MPA can promote recovery of local stocks. Moreover, the investment of funds by the local government in monitoring activities (in this case, watchtowers) is necessary to achieve MPA objectives.

Diversity and structure of tropical rain forest of Tutuila, American Samoa: effects of site age and substrate

We report tree community diversity, guild composition, and forest structure from three 1.2xa0ha (100xa0m × 120xa0m) permanent forest research plots on Tutuila, American Samoa, an isolated volcanic island in the South Pacific Ocean. Plots were established in three habitat types of lowland hill forest: two in mature tracts that differed in substrate type (talus vs non-talus), and a third in a 30–40xa0year-old abandoned plantation on non-talus soil. We encountered a total of 57 tree species ≥10xa0cm dbh. Richness was similar across sites, but composition differed substantially. We were able to classify with confidence 24 tree species into four distinct guilds based on forest-type preference: early successional or persistent successional (disturbed forest), generalist (no preference), or mature-phase. Sample size limitations or interactions between site age and substrate precluded categorization of all species. Thirty-eight percent (9/24) of the tree species were successional, a result which contrasts sharply with data from (formerly) continental forest in Panama. Spatial distributions of 33xa0species revealed 17xa0species exhibiting clumping or hyperdispersion (i.e., regular spacing) in at least one site. Possible non-anthropogenic mechanisms promoting clumping in the plots were (a)xa0topography (edaphic), (b)xa0gap affiliation, (c)xa0inefficient or altered patterns of propagule dispersal, and (d)xa0lack of natural seedling predators. Forest structure differed across site type, with stem densities highest in regenerating forest; conversely, regenerating forest had the lowest basal areas. Steep talus forest sequestered the most carbon (344.3xa0Mgxa0ha−1), and secondary forest sustained only 42% of levels found in talus forest (145.5xa0Mgxa0ha−1). Mature forest on non-talus soil sequestered the majority of carbon in mid-sized trees (30–50xa0cmxa0dbh). Future assessments of land-use cover and biomass will provide for a complete estimate of the carbon budget of Tutuila. Finally, the results of this study suggest that conservation of the native fauna is essential in retaining the potential for regeneration of native forest after large-scale disturbance.

Biophysical and policy drivers of landscape change in a central Vietnamese district

SUMMARY Conservation in a dynamic setting requires understanding the factors leading to landscape change. This study integrated traditional remote sensing and geographic information systems analysis techniques with a narrative policy analysis to assess the 1975‐ 2004 land cover changes and their determinants in Nam Dong district (central Vietnam). Total forest cover of Nam Dong remained stable, but there were major transitions within forest and non-forest categories.Recentpolicyinitiatives,particularlyforest land allocation, have resulted in short-term benefit maximization through land speculation and illegal logging, while increased awareness of the economic potential of forests and their products have motivated people to access forests more frequently, leading to a highly dynamic landscape and increased barriers to forest conservation. This study suggests that (1) state-sponsored logging needs to be reduced, (2) forest allocationshouldproceedmorerapidlytogivefarmers better incentive to improve and protect allocated forests, and (3) small-scale industry should increase. Forest conservation policy must be amended. More research is needed to link household land-use choices with policies, and determine how those choices lead to changes in the landscape.