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The Use and Exchange of Biological Control Agents for Food and Agriculture
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作者 J.C.van Lenteren M.J.W.Cock +6 位作者 J.Brodeur B.Barratt F.Bigler K.Bolckmans F.Haas P.G.Mason J.R.P.Parra 《中国生物防治学报》 CSCD 北大核心 2010年第S1期123-127,共5页
The report sets out to summarize the past and current situation regarding the practice of biologicalcontrol inrelationtothe use and exchange of genetic resources relevant for BCAs.It considers the twomain categories o... The report sets out to summarize the past and current situation regarding the practice of biologicalcontrol inrelationtothe use and exchange of genetic resources relevant for BCAs.It considers the twomain categories of biological control:classical and augmentative.Allowing access to BCAs for use inanother country imposes no risk of liability to the source country.Local scientific knowledge abouthabitats,fauna andflora,can be 展开更多
关键词 The Use and Exchange of Biological Control Agents for food and agriculture
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Assessment of Soil Erosion and Climate Variability on Kerio Valley Basin, Kenya 被引量:1
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作者 Mark K. Boitt Oburo M. Albright Harison K. Kipkulei 《Journal of Geoscience and Environment Protection》 2020年第6期97-114,共18页
This study was aimed at assessing soil erosion, climate variation and how climate has affected both the agro climatic and agro-ological zones of Kerio Valley basin. The basin faces challenges especially soil loss, due... This study was aimed at assessing soil erosion, climate variation and how climate has affected both the agro climatic and agro-ological zones of Kerio Valley basin. The basin faces challenges especially soil loss, due to the massive degradation that takes place in Kerio valley. Due to the increase in rainfall recently experienced in the area, most of the top soil has been carried away leading to excessive degradation of the valley, causing soil loss in the basin and subsequent deposition of the sediments in Lake Kamnarok which is an oxbow lake posing it to the threat of extinction. All these aforementioned factors, i.e. soil erosion, climate variation and land degradation have contributed to reduction of water storage capacity of the Lake. The main objective of this study was to assess the effects of soil erosion, climate variation on the basin and climate effect on agro-climatic and agro-ecological zones of the basin. Agro-climatic zones show how climate variability shapes agricultural landscape of an area while agro-ological zones show how agriculture affects the ecology of the basin. This includes the reduction of the lake size that has led to the disruption of the ecology of Lake Kamnarok and its environs, the major implications being the lake size reduction as the lake is proved to be a home for reptiles especially crocodiles. All these factors were finally assessed to determine their effect on water reduction capacity of Lake Kamnarok. The results depicted that the major factors that have caused changes in the basin and the Lake include heavy rainfall that has resulted in soil erosion and subsequent land degradation. These factors have eventually affected the agroclimatic and agroecological zones of the basin. This study integrated the use of Geographic Information System (GIS) and Remote Sensing (RS) to assess the areas with massive degradation and to quantify the amount of soil loss using Revised Universal Soil Loss Equation (RUSLE) model. It was concluded that the main factor that caused the changes in the agroclimatic and the agroecological zones was soil erosion which was influenced by climatic factors, i.e. rainfall and temperature. 展开更多
关键词 Agro-Ecological Zones food and agriculture Organization Geographic Information Systems Remote Sensing Land Use Land Cover
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Blockchain: A new safeguard for agri-foods 被引量:3
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作者 Jie Xu Shuang Guo +1 位作者 David Xie Yaxuan Yan 《Artificial Intelligence in Agriculture》 2020年第1期153-161,共9页
Blockchain implementation in agriculture has begun.Blockchain is recognized as an emerging technology in the agri-foods industry which may provide an efficient and robust mechanism for enhancing food traceability and ... Blockchain implementation in agriculture has begun.Blockchain is recognized as an emerging technology in the agri-foods industry which may provide an efficient and robust mechanism for enhancing food traceability and a transparent and reliable way to validate quality,safety,and sustainability,of agri-foods.However,the technology is in its nascency,therefore,this review was written to foster discussion and encourage the application of blockchain technology,especially in the agri-food industry.In this review,the working principle of blockchain for data recording and tracking is briefly described.The collaborationmodels for the current blockchain applications on agri-foods are summarized.Furthermore,the specific utilization of blockchain to enhance safety and quality of agri-foods is discussed in four aspects:enhance the data transparency,realize data traceability,improve the food safety and quality monitoring,and reduce the cost of financial transactions.A case study on aWalmart pork traceability system has been provided to demonstrate how blockchain may be used to enhance the food traceability.Finally,challenges and future trends of blockchain technology in agri-foods concerning data/cost management,data security,and data integration are discussed.Blockchain technology reveals a promising approach to foster a future of agri-foods system in a way that is safer,healthier,more sustainable,and reliable. 展开更多
关键词 Blockchain food and agriculture food safety food supply chain TRACEABILITY TRANSPARENCY
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