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[前沿资讯] Tea farmers find value in their digital data 进入全文

国际农业和农村合作技术中心(CTA)

2016年起,国际农业和农村合作技术中心(CTA)一直与非洲部分国家的农民组织合作,已实施其农业数据项目(Data4Ag)。该项目旨在使农民组织利用收集和管理中的农业数据帮助组织成员改善生计。收集的数据类型包括农民个人信息,农场信息,作物类型和产量信息。这种信息收集不仅提高了管理人员的权限,还可用于改善对农民信贷和投资,物流和产品营销的处理。通过该项目,农民组织和农业企业更高效的利用了地理位置数据以及农作物和农民基本信息,为农民提供了针对性强、及时的服务,例如天气信息和市场价格信息,从而保证了产业更有效的运行。

[前沿资讯] Latest weather data added to popular open-access dataset 进入全文

英国国家大气科学中心(NCAS)

Earlier this year the Met Office released the MIDAS Open database, a publically available version of a popular dataset containing hourly weather measurements across the UK. The Centre for Environmental Data Analysis (CEDA) has now published an updated version of MIDAS Open, bringing in new data for 2018 and updates for previous years. CEDA anticipate the new data will be particularly useful for service providers or members of the public who have previously been unable to access the restricted MIDAS dataset.

[科技报告] New opportunities for organised smallholder farmers 进入全文

国际农业和农村合作技术中心(CTA)

For decades, farm data across ACP countries has been collected by governments, financial service providers and even mobile network operators, to provide insights into agriculture that can be used to shape and influence the sector from the top down. But with more than 40% of African households now belonging to farmer cooperatives – many of which digitally record and store their members’ farm data – decision-makers increasingly acknowledge that a more localised and inclusive approach to data may be the best way to transform agriculture.

[学术文献] Predicting the Spatial Distribution and Severity of Soil Erosion in the Global Tropics using Satellite Remote Sensing 进入全文

Remote Sensing

Soil erosion has long been recognized as a major process of land degradation globally, affecting millions of hectares of land in the tropics and resulting in losses in productivity and biodiversity, decreased resilience of both marine and terrestrial ecosystems, and increased vulnerability to climate change. This paper presents an assessment of the extent of soil erosion in the global tropics at a moderate spatial resolution (500 m) based on a combination of systematic field surveys using the Land Degradation Surveillance Framework (LDSF) methodology and Earth observation data from the Moderate Resolution Imaging Spectroradiometer (MODIS) platform. The highest erosion prevalence was observed in wooded grassland, bushland, and shrubland systems in semi-arid areas, while the lowest occurrence was observed in forests. Observed erosion decreased with increasing fractional vegetation cover, but with high rates of erosion even at 50–60% fractional cover. These findings indicate that methods to assess soil erosion need to be able to detect erosion under relatively dense vegetation cover. Model performance was good for prediction of erosion based on MODIS, with high accuracy (~89% for detection) and high overall precision (AUC = 0.97). The spatial predictions from this study will allow for better targeting of interventions to restore degraded land and are also important for assessing the dynamics of land health indicators such as soil organic carbon. Given the importance of soil erosion for land degradation and that the methodology gives robust results that can be rapidly replicated at scale, we would argue that soil erosion should be included as a key indicator in international conventions such as the United Nations Convention to Combat Desertification.

[前沿资讯] What's driving tropical deforestation? Scientists map 45 years of satellite images 进入全文

ScienceDaily

Tropical forests are under increasing pressure from human activity such as agriculture. However, in order to put effective conservation measures in place, local decision-makers must be able to precisely identify which areas of forest are most vulnerable. A new analysis method spearheaded by researchers from the French Agricultural Research Centre for International Development (CIRAD), the International Center for Tropical Agriculture (CIAT) and the University of Rennes-2 could hold the key.

[前沿资讯] Mobilizing technologies, innovations, knowledge and expertise to reshape food systems 进入全文

FAO

Establishing a new business model based on science, data, transparency and accountability and conducive to strong partnerships with the private sector is a major focus for FAO, the Organization's Director-General Qu Dongyu today told private sector representatives at a meeting on the margins of the 74th session of the UN General Assembly.  "The world needs a strong, efficient and dynamic FAO. And FAO needs strong reliable partnerships with you," said the FAO chief. The meeting provided a platform to discuss and strengthen partnerships for realizing the much-needed transformation in food systems, and mobilizing all available technologies, innovations, knowledge and expertise to achieve positive impact at scale in the agriculture sectors.  

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