Energy, Forest, and Indoor Air Pollution Models for Sagarmatha National Park and Buffer Zone, Nepal Implementation of a Participatory Modeling Framework

This paper presents the results of management-oriented research on energy, forest, and human health issues in a remote mountain area, the Sagarmatha National Park and Buffer Zone (SNPBZ), Nepal. The research was based on a broader, integrated participatory framework ultimately intended for use in adaptive management. The present study focused on the application of a participatory modeling framework to address problems related to energy demand and consumption, forest condition, and indoor air pollution, which were defined by the stakeholders as important issues to be addressed. The models were developed using a generalizing design that allows for user-friendly adaptation to other contexts (free download at http://hkkhpartnership.org). Moreover, we simulated management scenarios in collaboration with all modeling actors with the aim of building consensus on the understanding of the system as well as supporting decision-makers' capacity not only to respond to changes, but also to anticipate them. Importantly, the system dynamics assessment found that the SNPBZ forests are affected by an increasing demand for fuelwood (occurring due to tourism growth), as one of the main sources of energy. Selected forests show an average reduction of 38% in forest biomass from 1992 to 2008. This shows that the business-as-usual scenario is unlikely to result in the preservation of the current forest status; in fact, such preservation would require 75% of fuelwood to be replaced with alternative energy sources. At the same time, a 75% reduction of fuelwood use (and an 80% reduction of dung use) would reduce indoor carbon monoxide (CO) concentrations to the standard limits for CO exposure set by the World Health Organization

Solid Waste and Water Quality Management Models for Sagarmatha National Park and Buffer Zone, Nepal Implementation of a Participatory Modeling Framework

The problem of supporting decision-and policy-makers in managing issues related to solid waste and water quality was addressed within the context of a participatory modeling framework in the Sagarmatha National Park and Buffer Zone in Nepal. We present the main findings of management-oriented research projects conducted within this framework, thus providing an overview of the current situation in the park regarding solid waste and water quality issues. We found that most of the solid waste generated in the park is composed of organic matter, paper, and minor reused waste that is mainly reused for cattle feeding and manure, while disposal of other nondegradable categories of collected waste (glass, metal, and plastic) is not properly managed. Particularly, burning or disposal in open dumps poses a great hazard to environmental, human, and animal health, as most dump sites situated close to water courses are prone to regular flooding during the rainy season, thereby directly contaminating river water. Pollutants and microbiological contamination in water bodies were found and anthropogenic activities and hazardous practices such as solid waste dump sites, open defecation, and poor conditions of existing septic tanks are suggested as possibly affecting water quality. Collection of these data on solid waste and water quality and compilation of management information on the targeted social-ecological system allowed us to develop consensus-building models to be used as management supporting tools. By implementing such models, we were able to simulate scenarios identifying and evaluating possible management solutions and interventions in the park. This work reveals insights into general dynamics that can support the quest for solutions to waste and water quality management problems in other protected areas and mountain landscapes where traditional livelihood and land use patterns are changing under the influence of a growing population, changing consumption patterns, and international tourism

Indigenous and Scientific Knowledge of Soil Regulation Services, and Factors Effecting Decision-Making in Agricultural Landscapes in the Terai Plains of Nepal

Rapid degradation of soil regulation services is a growing concern for agricultural producers worldwide, with the potential for adverse impacts on agricultural productivity, food security, and livelihoods. Yet, data integrating observations of soil nutrient and physical status with farmers’ knowledge of soil fertility is lacking, while landscape-level empirical assessments remain limited. In this paper, it is argued that a deeper understanding of the benefits and trade-offs of management practices currently employed by farmers to secure soil nutrients could help to promote improvements in natural resource management, agricultural productivity and efficiency. Using the case of the Central and Western Terai Plains of Nepal in 2012–2014, rice-cultivated soil parameters were estimated, and 354 respondents were interviewed to determine the cropping systems, soil nutrient status and risks, indigenous soil classification systems, and key biophysical, institutional, economic and risk perception factors effecting decision-making. Findings reveal farmers are acutely aware of the main causes of soil degradation and until today, these issues continue to be of critical importance. To counter this degradation, farmers employ a diversity of landscape-level practices to secure optimal crop yields and soil nutrients. However, farmers have limited access to agricultural extension services and scientific monitoring and apply fewer mineral fertilisers than previously reported. Additional investments are required to optimize farmers’ practices and soil regulation services, such as cooperation for knowledge innovation systems, public/private extension, organisation for co-management, integrated nutrient management, and private forestry on farms. The case illustrates local knowledge and incremental efforts to adapt to emerging risks remain the foundation to implement spatially targeted conservation measures and design adaptive land use plans

Suicide by pesticide ingestion in Nepal and the impact of pesticide regulation

Abstract Background Nepal recorded 5754 suicides in 2018–19 - a high number for a relatively small country. Over 24% of these suicides were by poisoning, most by ingestion of highly concentrated agricultural pesticides. Nepal has actively regulated pesticides to reduce their health impacts since 2001. We aimed to analyse Nepal’s history of pesticide regulation, pesticides responsible for poisonings, and relate them to national suicide rates. Methods Information on pesticide regulation was collected from the Plant Quarantine and Pesticide Management Centre of the Ministry of Agriculture and Livestock Development. National data on suicides from 1980 to 2019 were obtained from the National Statistical Bureau and Nepal Police. Data on the pesticides responsible for self-poisoning and pesticide suicides over time were obtained from a systematic literature review. Results As of June 2020, 171 pesticides were registered for use in Nepal, of which one was extremely hazardous (WHO Class Ia), one other highly hazardous (WHO Class Ib), and 71 moderately hazardous (WHO Class II). Twenty-four pesticides have been banned since 2001, with eight (including five WHO Class I compounds) banned in 2019. Although the suicide rate has increased more than twelve-fold since 1980, particularly for hanging (15-fold increase from 1980 to 2018), fatal pesticide self-poisoning has increased by 13-fold. Methyl-parathion is reported to be the key pesticide responsible for pesticide self-poisoning in Nepal, despite being banned in 2006. Conclusion The full effect of the recent pesticide policy reform in Nepal remains to be seen. Our analysis shows a continuing increase in suicide numbers, despite bans of the most important pesticide in 2006. This may indicate smuggling across the border and the use of the brand name (Metacid) for pesticides in general making it difficult to identify the responsible pesticide. More information is required from forensic toxicology labs that identify the individual compounds found. The effect of recent bans of common suicide pesticides needs to be monitored over the coming years. Evidence from other Asian countries suggests that HHPs bans will lead to a marked reduction in suicides, as well as fewer cases of occupational poisoning