cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34725/dvn/25233
title: Trees for Food Security Project-Local Knowledge-Farmers on trees and associated management in Gishwati, Rwanda

description: The specific objectives of the study are: 1) Land-use characterization 2) Examine farmers knowledge of factors that have influenced their current food security status; and their coping mechanisms 3) Examine farmers’ knowledge of the role of trees and management in achieving household food security 4) Explore challenges and opportunities towards achieving food security
DOI: 10.34725/dvn/25288
title: Africa RISING Project: Local agro-ecological knowledge as a basis for sustainable intensification of tree- crop- livestock systems in the Ethiopian highlands:  Endamahoni Woreda, Tigray Region

description: This study provides results from local knowledge studies conducted in Endamahoni woreda, Tigray region, Ethiopia. The local knowledge was used as a means of understanding fine-scale variation in a non-homogenous smallholder system in the wheat-belt of the Ethiopian highlands. The research was supported through the USAID funded project Africa RISING (Research in Sustainable Intensification for the Next Generation). The project was launched as part of the US government’s Feed the Future initiative to address global hunger and food security issues in key farming systems in sub-Saharan Africa. This study was focussed on identifying existing sustainable intensive agricultural methods. The study also collected local knowledge on agricultural methods so as to assist in the development and implementation of appropriately adapted technologies to intensify production of crops, livelihood and household production without extending the areas subject to cultivation.    Research Objectives The research objectives of the study were: 	· To characterize agro-ecological knowledge of farmers in the Africa RISING project sites 	· To identify and map out community resources 	· To assess land use and livelihood strategies at the household level 	· To characterise existing tree cover and assess the drivers of tree cover change  	· To determine temporal variation in availability of provisioning services (income, fuel, livestock feed, crops, labour.)
DOI: 10.34725/dvn/25320
title: Architechture of Reducing Emissions from All Land Uses (REALU)

description: Data for Architechture of Reducing Emissions from All Land Uses (REALU)
DOI: 10.34725/dvn/29524
title: Replication data for: Genetic variation and clines in growth and survival of Prosopis africana from Burkina Faso and Niger: comparing results and conclusions from a nursery test and a long-term field test in Niger

description: Rural communities in West Africa value Prosopis africana for its wood and other essential products and environmental services. The climate is becoming hotter and drier with more variable rainfall, so it is important to identify provenances that are better adapted to a hotter, drier climate. Some tree improvement research programs use nursery tests to identify better adapted provenances, but are conclusions comparable to those from field tests? We analyzed data (height, root dry weight, shoot dry weight, root/shoot ratio, survival) from a provenance/progeny nursery test of P. africana at 8 months, and compared the results with a field test at 11 and 13 years. The tests included 275 families from 28 provenances in the Sahelian and Sudanian ecozones of Burkina Faso and Niger, and were established at one relatively dry site in Niger. The proportion of total variance due to provenances and families within provenances was greatest for root/shoot ratio, and root/shoot ratio had the highest heritability of growth variab
les in the nursery. Provenances with smaller seedlings and larger root/shoot ratios in the nursery had better growth and survival in the field, and were from drier locations. Mean annual rainfall of provenances was the best predictor of provenance growth and survival in the field, followed by provenance height and root/shoot ratio in the nursery. We recommend that tree improvement research programs in the Sahelian and Sudanian ecozones of West Africa identify P. africana provenances that are from drier locations and have smaller seedlings and larger root/shoot ratios in the nursery for planting in agroforestry projects in rural communities.
DOI: 10.34725/dvn/gbdzys
title: Replication data for: Genetic variation in tree growth, stem form and mortality of Guazuma crinita in slower- and faster-growing plantations in the Peruvian Amazon

description: <i>Guazuma crinita</i> is an important timber tree with a rotation age of 6 to 12 years in the Peruvian Amazon. A provenance/progeny test containing 200 families from seven locations (provenances) in the Aguaytia watershed of Peru was established in three zones in the Aguaytia watershed that differ in mean annual rainfall and soil fertility. Farmers managed the replications as plantations. Replications were divided into two groups at 24 months: faster- and slower-growing plantations. The
faster-growing plantations were thinned at 32 months. The objectives of this paper are to determine if genetic variation in growth traits (tree height, stem diameter) is relatively greater in the faster-growing plantations, and if there are significant differences in tree mortality and stem bifurcations among provenances and families at 24, 36 and 48 months. Variation due to provenances and families and heritability of growth traits were consistently greater in the faster-growing plantations. At 48 months, heritability of growth traits was about twice as large in the faster- than in the slower-growing plantations. There were no significant interactions between zones and either provenances or families. Tree mortality and stem bifurcations in the faster-growing plantations generally did not differ significantly among families, but did differ significantly among provenances. Based on these results and considering its rotation age, we recommend that G. crinita families/trees could be selected at 48 months in the faster-growing plantations, the plantations could be transformed into seed orchards and the seed could be used for reforestation throughout the Aguaytia watershed. Results are compared with other tropical hardwoods.
DOI: 10.34725/dvn/k1xxjb
title: ASB Africa Biocarbon database

description: The African continent is the least emitter of Green House Gases (GHG), but the most vulnerable to the effects of climate change. Bio-carbon projects hold a great promise for the continent to contribute to climate change mitigation, while adapting. The projects also yield additional socio-economic and environmental benefits which are important to the local communities around the areas where the projects are implemented. The database takes stock of afforestation/reforestation as well as agricultural projects in Africa that contribute to carbon sequestration. The key items of the database include; 1. Project name, 2. Country, 3. Inve
stor, 4. Amount invested (US$), 5. Implementer,  6.Type (Agriculture/Forestry),  7. Amount of Carbon offset,  8. Project Start year and end Year, 9. Status of development of the project, 10. Mechanism under which the project was initiated, 11. Area of carbon sequestration,  12 Best practices in community based programmes and smallholder farmer involvement, 13. Framework for benefit sharing,  14 Data sources. The key findings were: 1) Africa has more than 100 bio-carbon projects, ranging from forest conservation to agroforestry, as well as many sustainable land management programmes, but most of them are at an infant stage, with less than 5% generating financial benefits to local communities. 2) The continent is seriously lagging behind other continents in terms of participation in the Clean Development Mechanism (CDM), REDD, and voluntary carbon markets and if current investment patterns continue, the world will miss important opportunities to maximize emission reductions in economically poor but natural resource rich countries in Africa.
DOI: 10.34725/dvn/u0l8h2
title: Replication data for: Group market impact on the exploitation of NTFP in Cameroon.

description: 40 individuals were sampled on group market impact on the exploitation of NTFP in Cameroon. Questionnaire was administered at different household level in Nkolfone, Nnemeyong, Nvamedja and Ntoumba villages. The questionnaire was divided into three sections: household characteristics, household socio-economic characteristics and the section for the collection and sales of NTFP by household.
DOI: 10.25592/dgs.corpus-type-68754
title: SEPTEMBER3^ (MEINE DGS – annotiert. Öffentliches Korpus der Deutschen Gebärdensprache, mehrere Releases)
title: SEPTEMBER3^ (MY DGS – annotated. Public Corpus of German Sign Language, several releases)

description: Ein Type aus der Annotation von MEINEDGS mit allen seinen Tokens aus MEINEDGS: The Public DGS Corpus consists of more than 50 hours of video data from the DGS-Korpus project made available together with annotations for research purposes. In this project, data were collected all across Germany in the timeframe 2010-2012. The public corpus shows 330 informants in 4 different age groups (from 18 years on) from 13 different regions. All parts are conversations between two informants in German Sign Language (DGS). The majority of transcripts included cover discussions and reports on Deaf life and personal experiences, although there are examples of other tasks such as story retellings as well.<br>Transcripts are made available in iLex and ELAN format as well as in SRT subtitles format that can be imported in MaxQDA and other analysis tools, together with the mp4 video files in 360p50. Über diese versionsunabhängige DOI ist die jeweils neueste Version des Datensatzes auffindbar.
description: A type from the annotation of MYDGS including all its tokens in MYDGS: Das Öffentliche DGS-Korpus besteht aus mehr als 50 Stunden Video aus dem Projekt DGS-Korpus , die zusammen mit Annotationen für Forschungszwecke zur Verfügung gestellt werden. Die Datenerhebung im Projekt fand im Zeitraum 2010-2012 in ganz Deutschland statt. Das öffentliche Korpus besteht aus Gesprächen jeweils zweier Informantinnen oder Informanten in Deutscher Gebärdensprache. Das Korpus umfasst 330 Informantinnen und Informanten in vier verschiedenen Altersgruppen (ab 18 Jahren) aus 13 verschiedenen Regionen. Der Schwerpunkt der Sammlung liegt auf Transkripten von Diskussionen und Berichten über das Leben Gehörloser sowie persönliche Erfahrungen, sie enthält aber auch Beispiele anderer Erhebungsformate wie Nacherzählungen.<br>Transkripte werden im iLex- und ELAN-Format sowie als SRT-Untertiteldateien (zum Import etwa in MaxQDA) zur Verfügung gestellt. Die zugehörigen MP4-Videodaten sind durchgängig im Format 360p50. This version-dependent DOI allows you to find the latest version of the dataset.
DOI: 10.34725/dvn/24411
title: Replication data for: Multi-temporal Assessment of Forest Cover, Stocking parameters and Above-ground Tree Biomass Dynamics in Miombo Woodlands of Tanzania

description: Miombo woodlands form the widespread ecosystem in Tanzania. The ecosystem of these woodlands serves as a carbon sink and source containing majority of the above-ground terrestrial organic carbon. The study assessed forest cover, stocking parameters and above-ground tree biomass dynamics in the Miombo woodlands of Bereku and Duru Haitemba in Tanzania. The data were obtained from conventional forest inventory and remote sensing and GIS techniques. Results showed that forest cover has increased for the two consecutive assessment period of 1988 – 2000 and 2000 – 2009, mostly by higher canopy cover of 6.82% and 0.79% respectively. Stocking parameters were found to be N (1909.5±9.4), G (12.3±0.6) and V (71.0±6.8). Vegetation indices (NDVI, ARVI and ND54) were then combined with forest inventory data for computation of average above ground biomass which were found to increase from 64±6.53 t/ha, 67.8 ±5.42 t/ha and 79.218±2.75 t/ha for 1988, 2000 and 2009 respectively. The results suggest that, the Miombo woodland resources have been consistently improving over the years of assessment. This could be attributed to reduction in negative anthropogenic factors that are known to be the major cause of resources degradation in Miombo woodlands. However, this improvement may be partial as plot level information revealed higher exploitation of the dbh class of 4 – 5 cm. Increase of management effectiveness through involvement of local people under participatory forest management, strengthened bylaws and provision of other incentives might have contributed greatly to the improvement of the f
orest resources.
DOI: 10.34725/dvn/25298
title: Replication data for: Households’ Willingness to Pay for Improved Watershed Services of the Layawan Watershed in Oroquieta City, Philippines

description: Watersheds provide numerous ecosystem services to downstream communities often with no cost to them. Although these services are valuable to humans, they do not have monetary values attached to them, making their total economic value quite ambiguous. This ambiguity results in the non-optimal use o
f the natural resources that leads to the degradation of the watersheds. One approach that could address this issue is payments for ecological services (PES). The main objective of this study was to estimate the willingness-to-pay for improved watershed services by domestic water users within the Layawan Watershed in Oroquieta City. It employed the contingent valuation method to assess the willingness to pay of water users. More than 50% of the respondents voted positively to the referendum question which is whether they are willing to pay a certain amount for the conservation of the Layawan Watershed or not. The computed mean willingness to pay amounts were Php 57.48 and Php 53.89 per month per household for the parametric and non-parametric estimations, respectively. These amounts translate to 0.68% of the average monthly household income of the sample respondents, which is approximately Php 8 198.84. The amounts computed may serve as bases for a water user fee that may be collected from the domestic water users in the Layawan Watershed as buyers of the watershed services.
DOI: 10.34725/dvn/4x4un7
title: Nile-Congo SL Calculated Village Indicators

description: Calculated village level indicators for the FGD data collected in Nile-Congo SL.
DOI: 10.34725/dvn/angapd
title: Replication Data for: Genetic variation and clines in growth and survival of Prosopis africana from Burkina Faso and Niger: comparing results and conclusions from a nursery test and a long-term field test in Niger

description: Rural communities in West Africa value Prosopis africana for its wood and other essential products and environmental services. The climate is becoming hotter and drier with more variable rainfall, so it is important to identify provenances that are better adapted to a hotter, drier climate. Some tree improvement research programs use nursery tests to identify better adapted provenances, but are conclusions comparable to those from field tests? We analyzed data (height, root dry weight, shoot dry weight, root/shoot ratio, survival) from a provenance/progeny nursery test of P. africana at 8 months, and compared the results with a field test at 11 and 13 years. The tests included 275 families from 28 provenances in the Sahelian and Sudanian ecozones of Burkina Faso and Niger, and were established at one relatively dry site in Niger. The proportion of total variance due to provenances and families within provenances was greatest for root/shoot ratio, and root/shoot ratio had the highest heritability of growth variables in the nursery. Provenances with smaller seedlings and larger root/shoot ratios in the nursery had better growth and survival in the field, and were from drier locations. Mean annual rainfall of provenances was the best predictor of provenance growth and survival in the field, followed by provenance height and root/shoot ratio in the nursery. We recommend that tree improvement research programs in the Sahelian and Sudanian ecozones of West Africa identify P. africana provenances that are from drier locations and have smaller seedlings and larger root/shoot ratios in the nursery for planting in agroforestry projects in rural communities.
DOI: 10.34725/dvn/qwnklj
title: Review of seeds and seedlings systems in Uganda

description: Supporting the development of superior tree seed sector in Uganda can substantially contribute to improved food security and smallholder farmers’ livelihood improvement through development of the seed and seedling system. The interventions should explore variation among seed value chains with the aim of making seed programmes and policies more coherent with farmers’ practices by contributing to food security, livelihood improvement through the promotion of tree seed entrepreneurship, and biodiversity conservation and sustainable use of the forest products and services. This study is designed towards contributing to one of the outputs of T4FS Project: Developing recommendations for improving tree seed and seedling systems in Uganda.
DOI: 10.34725/dvn/wvhwfn
title: Replication data for: Exotic tree species displace indigenous ones on farms at intermediate altitudes around Mount Kenya

description: Exotic tree species displace indigenous ones on farms at intermediate altitudes around Mount Kenya highlands and upper midlands, whereas indigenous species in the lower midlands and lowlands. As the frequencies of most indigenous trees were low, only parts of the surveyed farms can contribute to conservation of tree genetic resources, particularly the less intensively managed farms of the more arid lands. Farmers access to knowledge on valuable indigenous tree species and to quality seedlings of these trees need to be improved to increase indige- nous speciesÂ frequencies on farms and possibly to replace some of the exotic species in the future.
DOI: 10.34725/dvn/xienpd
title: Replication Data for Correct calculation of CO2 efflux using a closed-chamber linked to a non-dispersive infrared gas analyzer

description: 1.Improved understanding of the carbon (C) cycle is essential to model future climates and how this may feedback to affect greenhouse gas fluxes.
2.We summarize previous work quantifying respiration rates of organic substrates and briefly discuss how advances in technology, specifically the use of chambers linked to a non-dispersive infrared gas analyzer (NDIR), can be applied to assess carbon dynamics from short-term field measurements. This technology hastens measurement and is relatively inexpensive, enabling researchers to increase replication and investigate temporal and spatial variation.
3.We describe the theory behind calculations of CO2 efflux released through organic substrates, when using a closed-chamber linked to a NDIR. These methods can in principle be extended to any chamber-based measurement of gas fluxes, including partially closed chambers as used for soil surface CO2, nitrous oxide or methane effluxes and stem CO2 respiration, although additional assumptions may apply.
4.We show that incorrect application of formulae in some earlier studies resulted in either under- or over-estimation of CO2 effluxes. Of the studies, we reviewed measuring the respiration of woody debris, leaf litter or woody stems using closed chambers linked to a NDIR, only 22% (11 of 51) provided the equations used to calculate CO2 efflux, and 72% (8 of 11) of those provided contained basic errors. Using our data on the decomposition of woody debris as an example, we found that such mistakes resulted in anywhere from 8% underestimation to 22% overestimation of CO2 efflux. The errors varied among studies and hence may limit understanding of the factors affecting emissions of CO2 and our ability to incorporate this knowledge into global carbon models.
5.We provide formulae for the correct calculation of respiration rates in future studies using closed chambers and thus provide a basis for comparative studies of factors affecting CO2 efflux from woody debris, leaf litter and other substrates. Ultimately, this will contribute to improved parameterization of forest respiration.
DOI: 10.5517/ccdc.csd.cc20hpy5
title: CCDC 1862137: Experimental Crystal Structure Determination

description: Related Article: Romain Tessier, Javier Ceballos, Nora Guidotti, Raphael Simonet-Davin, Beat Fierz, Jerome Waser|2019|Chem Cell mPress|5|2243|doi:10.1016/j.chempr.2019.06.022
DOI: 10.5517/ccdc.csd.cc20nyf2
title: CCDC 1867174: Experimental Crystal Structure Determination

description: Related Article: Efraín Polo, Nicol Ibarra-Arellano, Luis Prent-Peñaloza, Alejandro Morales-Bayuelo, José Henao, Antonio Galdámez, Margarita Gutiérrez|2019|Bioorg.Chem.|90|103034|doi:10.1016/j.bioorg.2019.103034
DOI: 10.5517/ccdc.csd.cc20nyg3
title: CCDC 1867175: Experimental Crystal Structure Determination

description: Related Article: Efraín Polo, Nicol Ibarra-Arellano, Luis Prent-Peñaloza, Alejandro Morales-Bayuelo, José Henao, Antonio Galdámez, Margarita Gutiérrez|2019|Bioorg.Chem.|90|103034|doi:10.1016/j.bioorg.2019.103034