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Artificial Intelligence for Maximizing Agricultural Input Use Efficiency: Exploring Nutrient, Water and Weed Management Strategies
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作者 Sumit Sow Shivani Ranjan +8 位作者 Mahmoud F.Seleiman Hiba M.Alkharabsheh Mukesh Kumar Navnit Kumar Smruti Ranjan Padhan Dhirendra Kumar Roy Dibyajyoti Nath Harun Gitari Daniel O.Wasonga 《Phyton-International Journal of Experimental Botany》 SCIE 2024年第7期1569-1598,共30页
Agriculture plays a crucial role in the economy,and there is an increasing global emphasis on automating agri-cultural processes.With the tremendous increase in population,the demand for food and employment has also i... Agriculture plays a crucial role in the economy,and there is an increasing global emphasis on automating agri-cultural processes.With the tremendous increase in population,the demand for food and employment has also increased significantly.Agricultural methods traditionally used to meet these requirements are no longer ade-quate,requiring solutions to issues such as excessive herbicide use and the use of chemical fertilizers.Integration of technologies such as the Internet of Things,wireless communication,machine learning,artificial intelligence(AI),and deep learning shows promise in addressing these challenges.However,there is a lack of comprehensive documentation on the application and potential of AI in improving agricultural input efficiency.To address this gap,a desk research approach was used by utilizing peer-reviewed electronic databases like PubMed,Scopus,Goo-gle Scholar,Web of Science,and Science Direct for relevant articles.Out of 327 initially identified articles,180 were deemed pertinent,focusing primarily on AI’s potential in enhancing yield through better management of nutrients,water,and weeds.Taking into account researchfindings worldwide,we found that AI technologies could assist farmers by providing recommendations on the optimal nutrients to enhance soil quality and deter-mine the best time for irrigation or herbicide application.The present status of AI-driven automation in agricul-ture holds significant promise for optimizing agricultural input utilization and reducing resource waste,particularly in the context of three pillars of crop management,i.e.,nutrient,irrigation,and weed management. 展开更多
关键词 Agriculture artificial intelligence crop management NUTRIENT IRRIGATION weed management resource use efficiency
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ON THE COMPREHENSIVE DEVELOPMENT AND UTILIZATION OF THE AGRICULTURAL RESOURCES IN YANCHI COUNTY——A TYPICAL TRANSITIONAL BELT BETWEN AGRICULTURE AND ANIMAL HUSBANDRY
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作者 Ma Gaoyun Zhao Wenxiang Qin Pingan Ningxia College of Agriculture 《干旱区资源与环境》 CSCD 1993年第Z1期460-462,共3页
1. The natural economic conditions of yanchi county Yanchi County (in Ningxia Province, China) lies between the Muwus Desert and theLoess Plateau, its geographical location is a typical transition belt. The view from ... 1. The natural economic conditions of yanchi county Yanchi County (in Ningxia Province, China) lies between the Muwus Desert and theLoess Plateau, its geographical location is a typical transition belt. The view from south tonorth: the general configuration of the earth’s surface is from the Loess Plateau to Ordos ta-bleland; the climate is from semi arid to arid. The transition of its geogrophical location pro-vides the area such features which are various,complex and fragile in natural conditions. 展开更多
关键词 Transition BELT of Agriculture and ANIMAL HUSBandRY agricultural resources Comprehensive utilization
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Utilization and Management of Small Fishery Population Resources in Coastal and Offshore Areas of China
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作者 Jiahua LE Xiangguo ZHANG Yingqi ZHOU 《Asian Agricultural Research》 2016年第1期30-32,共3页
There are numerous types of living resources in coastal and offshore areas of China. In recent years,both the population type and quantity structure have significant changes,and the stock of small fishery population r... There are numerous types of living resources in coastal and offshore areas of China. In recent years,both the population type and quantity structure have significant changes,and the stock of small fishery population resources is increasing. This population is precious protein resource. It is urgent to study how to take prompt and effective fishing and take full advantage of processing,utilization and management. Traditional utilization methods are limited by many factors. The utilization efficiency is extremely low. The feed conversion rate of some mariculture fishes with fresh small trash fishes as feeds is even as low as 0. 2. Innovative production and management organization model with aquatic enterprises as leaders greatly increases the utilization efficiency of small fish resources with the aid of marine processing mother ship. In order to further accelerate developing and utilizing small fishery population resources in coastal and offshore areas,China should launch survey and utilization researches of small fishery population resources in coastal and offshore areas,formulate practical and feasible laws,regulations and policies,actively encourage and support autonomous innovative management mode of enterprises,and promote effective utilization and management of coastal and offshore fishery resources. 展开更多
关键词 FISHERY POPULATION resources COASTAL and ofFSHORE areas SMALL FISHERY POPULATION resources utilization and management
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Agricultural Water Resources Utilization and Management under Agricultural Safety Aim Based on Fuzzy Neural Network Algorithm
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作者 Shengxin WAN 《Asian Agricultural Research》 2021年第12期1-4,8,共5页
[Objectives]To explore the agricultural water resources utilization and management under the agricultural safety aim.[Methods]Fuzzy neural network algorithm was adopted.The evaluation model of agricultural water resou... [Objectives]To explore the agricultural water resources utilization and management under the agricultural safety aim.[Methods]Fuzzy neural network algorithm was adopted.The evaluation model of agricultural water resources utilization and management carrying capacity based on quantitative system was established.[Results]With the remarkable improvement of China's national income,great progress has been made in China's agricultural development.However,in the process of agricultural safety production,the problem of sustainable development has not been noticed,the problem of water resources exceeding the limit bearing capacity frequently occurs.[Conclusions]It is of great significance to effectively solve the problem of water resources utilization and management.In the feasibility test for the algorithm,further tests on various indicators show that the research is feasible. 展开更多
关键词 Fuzzy neural network algorithm Quantification system utilization and management of water resources
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A Systematic Literature Review on Task Allocation and Performance Management Techniques in Cloud Data Center
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作者 Nidhika Chauhan Navneet Kaur +5 位作者 Kamaljit Singh Saini Sahil Verma Abdulatif Alabdulatif Ruba Abu Khurma Maribel Garcia-Arenas Pedro A.Castillo 《Computer Systems Science & Engineering》 2024年第3期571-608,共38页
As cloud computing usage grows,cloud data centers play an increasingly important role.To maximize resource utilization,ensure service quality,and enhance system performance,it is crucial to allocate tasks and manage p... As cloud computing usage grows,cloud data centers play an increasingly important role.To maximize resource utilization,ensure service quality,and enhance system performance,it is crucial to allocate tasks and manage performance effectively.The purpose of this study is to provide an extensive analysis of task allocation and performance management techniques employed in cloud data centers.The aim is to systematically categorize and organize previous research by identifying the cloud computing methodologies,categories,and gaps.A literature review was conducted,which included the analysis of 463 task allocations and 480 performance management papers.The review revealed three task allocation research topics and seven performance management methods.Task allocation research areas are resource allocation,load-Balancing,and scheduling.Performance management includes monitoring and control,power and energy management,resource utilization optimization,quality of service management,fault management,virtual machine management,and network management.The study proposes new techniques to enhance cloud computing work allocation and performance management.Short-comings in each approach can guide future research.The research’s findings on cloud data center task allocation and performance management can assist academics,practitioners,and cloud service providers in optimizing their systems for dependability,cost-effectiveness,and scalability.Innovative methodologies can steer future research to fill gaps in the literature. 展开更多
关键词 Cloud computing data centre task allocation performance management resource utilization
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Study on the Optimized Combination and Utilization of Waste Resources of Agriculture and Animal Husbandry in Tibet
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作者 Huaguo ZHANG 《Meteorological and Environmental Research》 CAS 2021年第2期52-54,共3页
With the high-quality development of modern agriculture and animal husbandry in the plateau,the waste resources produced by agriculture and animal husbandry show a trend of diversification.How to effectively carry out... With the high-quality development of modern agriculture and animal husbandry in the plateau,the waste resources produced by agriculture and animal husbandry show a trend of diversification.How to effectively carry out the key work based on the optimal combination and utilization of waste resources of agriculture and animal husbandry in Tibet is imminent.To realize efficient recycling of waste resources of agriculture and animal husbandry,innovative mode is explored.On the theoretical basis,it can effectively alleviate the resource crisis,control the pollution sources,effectively utilize the resources and construct the recycling mode,which plays an important role in promoting,integrating and coordinating the high-quality development of modern agriculture and animal husbandry in the plateau.In this paper,optimal combination and utilization manner of waste resources of agriculture and animal husbandry under the circular development concept is comprehensively analyzed and summarized,to continuously improve reasonable and effective utilization level and efficiency of agricultural waste resources.It could not only inhibit waste pollution but also promote rational and effective utilization of resources,thereby laying theoretical basis for sustainable and efficient development of agriculture and animal husbandry in Tibet,promoting the improvement of agricultural and rural ecological environment,and providing the thinking for exploring model of ecological recycling in plateau. 展开更多
关键词 Agriculture and animal husbandry Waste resources Optimized combination utilization
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Utilization of Agricultural Climatic Resources under the Spring Maize-Spring Potato Intercropping Pattern in Pengzhou City
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作者 Ren RONG Hao FU +4 位作者 Xin CHE Le CHEN Qiang KANG Nan HE Yangyuan LIU 《Asian Agricultural Research》 2018年第11期87-91,共5页
According to the meteorological requirements of maize and potato,using the data of meteorological observations and soil moisture of Pengzhou City,the agricultural climatic resources of spring maize and spring potato p... According to the meteorological requirements of maize and potato,using the data of meteorological observations and soil moisture of Pengzhou City,the agricultural climatic resources of spring maize and spring potato planting and the advantages of agricultural climatic resources of their intercropping were analyzed. The suitable sowing dates for spring maize and spring potato are late March to early April,early February to early March,respectively. During the growth period,the heat resources are abundant,the soil moisture is sufficient,the precipitation and overall distribution are suitable,and the sunshine is still sufficient,which can meet the needs of each growth period. The overall configuration of agricultural meteorological resources is coordinated,which is suitable for the planting of the two. Spring maize-spring potato intercropping can make the most of land,time and space,improve light and heat utilization,reduce pests and diseases,and increase output per unit area,thereby maximizing economic benefits. 展开更多
关键词 马铃薯 气象学 农业 种植技术
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Moderate scale and realization potential of new citrus-planting business entities in hilly and mountainous areas in China
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作者 ZHANG Xuan-yun ZHANG Shi-chao +3 位作者 LIU Jing-yu RAN Na ZHANG Xiang NING Qi-wen 《Journal of Mountain Science》 SCIE CSCD 2023年第8期2315-2343,共29页
The natural and economic conditions of agricultural resources vary greatly in China,especially in hilly and mountainous areas.The phenomenon of land fragmentation has become increasingly prominent,so that large-scale ... The natural and economic conditions of agricultural resources vary greatly in China,especially in hilly and mountainous areas.The phenomenon of land fragmentation has become increasingly prominent,so that large-scale operations cannot be fully achieved in a short period of time,and the centralized and continuous scale of operations cannot be realized in China.In addition,with increasingly strict farmland protection and agricultural land use control systems,the issues of nongrain production and nonagricultural cultivated land use have become increasingly restricted.Thus,it is quite necessary to determine the appropriate scale of operations and the means to achieve moderately scaled operations for the new business entities.On the basis of microsurvey data for 108 new citrus-planting business entities in the modern agricultural park in the Chongqing's Jiangjin District,an area with long citrus-planting history,we measured the moderate scale of new citrus-planting business entities to maximize profit using a translog growth model.According to the projection pursuit model,we evaluated the suitability conditions of citrus planting in garden land,woodland,grassland,and general cultivated land in the study area.We then explored the potential for new moderate-scale business entities within different farming radii.The results showed that large-scale planting conditions of citrus in garden land,forest land,grassland,and general cultivated land in the study area were suitable,and the proportion of high-suitable and mediumsuitable land was 73.42%.Under the existing social and economic conditions,the moderate scale of new citrus-planting business entities in the study area was 1.8–2.7 hm^(2).In particular,its rankings from large to small were agricultural enterprises(17.19–25.78 hm^(2)),farmer cooperatives(16.88–25.33 hm^(2)),big growers and breeders(6.39–9.59 hm^(2)),and family farms(5.02–7.53 hm^(2)).In the sample of 108 households,only 47.22%of the entities achieved moderate-scale operation,of which 25%of the entities achieved a scale greater than moderate operation.However,52.78%of the entities achieved a scale of less than moderate operation.These entities would have to transfer the surrounding adjacent garden land,forest land,grassland,or general cultivated land to achieve largescale land management.The land area of the adjacent gardens in a 1000 m farming radius could meet the moderate-scale operation demand of the vast majority of new business entities.For the vast majority of new business entities,the land area of the adjacent woodland,grassland,and general cultivated land could supplement the garden land to achieve moderate-scale operation in a 500 m farming radius.If the land area with moderate suitability and high suitability is prioritized,the land area in the adjacent gardens in the 1000 m farming radius could meet the moderate-scale operation demand for the vast majority of new business entities.Within the 500 m farming radius,the vast majority of new business entities have achieved moderate-scale operations if the land area adjacent to forest land,grassland,and general arable land was supplemented by gardens;however,a few entities could not achieve moderate-scale operations.From the village perspective,gardens were prioritized.Sixteen villages had planting areas and planting suitability that exceeded the average level of the study area,accounting for 23.53%.If combined with the reserve potential of the garden land,eight villages could improve their potential,accounting for 11.76%.Therefore,the conditions of large-scale citrus planting in the study area should be further improved,and the scale expansion of new citrus-planting business entities should receive additional scientific guidance. 展开更多
关键词 Land management Hilly and mountainous areas agricultural business entities Moderate operation scale agricultural land resources Realizing potential
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Triple bottom-line consideration of sustainable plant disease management:From economic,sociological and ecological perspectives 被引量:2
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作者 HE Dun-chun Jeremy J.BURDON +1 位作者 XIE Lian-hui Jiasui ZHAN 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第10期2581-2591,共11页
Plant disease management plays an important role in achieving the sustainable development goals of the United Nations(UN)such as food security,human health,socio-economic improvement,resource conservation and ecologic... Plant disease management plays an important role in achieving the sustainable development goals of the United Nations(UN)such as food security,human health,socio-economic improvement,resource conservation and ecological resilience.However,technologies available are often limited due to different interests between producers and society and lacks of proper understanding of economic thresholds and the complex interactions among ecology,productivity and profitability.A comprehensive synergy and conflict evaluation of economic,sociological and ecological effects with technologies,productions and evolutionary principles as main components should be used to guide sustainable disease management that aims to mitigate crop and economic losses in the short term while maintaining functional farm ecosystem in the long term.Consequently,there should be an increased emphasis on technology development,public education and information exchange among governments,researchers,producers and consumers to broaden the options for disease management in the future. 展开更多
关键词 plant disease management agricultural sustainability disease economics food security resource conservation
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Panel Data Based Dynamic Evaluation of Agricultural Resource Utilization Efficiency: A Case Study of Hebei Province 被引量:1
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作者 Yajuan TIAN Li ZHEN 《Asian Agricultural Research》 2013年第4期58-59,62,共3页
Resource utilization efficiency is one of important factors influencing modern agricultural development. This paper evaluates agricultural resource utilization efficiency of Hebei Province in the Eleventh Five-Year Pl... Resource utilization efficiency is one of important factors influencing modern agricultural development. This paper evaluates agricultural resource utilization efficiency of Hebei Province in the Eleventh Five-Year Plan period by dynamic comprehensive evaluation method. Evaluation results indicate that regional disparity in agricultural resource utilization efficiency is significant, and the disparity is increasing year by year. 展开更多
关键词 agricultural RESOURCE utilization EFFICIENCY PANEL
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Water Resource Management and Its Role in Development of Integrated Mountainous Agriculture——A Case from Ningnan County of Sichuan Province 被引量:1
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作者 ZHA0 Liu-hui WU Yang 《Agricultural Science & Technology》 CAS 2010年第8期183-188,共6页
This paper reviewed rainwater collection and water resource management in Ningnan County in southwestern mountain of China,as a case study for solving the problems of water management in a simple and sustainable way. ... This paper reviewed rainwater collection and water resource management in Ningnan County in southwestern mountain of China,as a case study for solving the problems of water management in a simple and sustainable way. In this mountainous agriculture system,private agricultural enterprises were introduced into local mountain agriculture to solve capital fund shortage for the construction of rainwater harvesting system. Agreement was signed by private agriculture enterprises with the target farmers to subscribe for the household agriculture production at a protection price. Cash invested by the enterprise and subsidy from the government were collected for purchasing materials,while the farmers supplied labors for the construction of water harvesting systems. The system solved the share of input and benefits between the local government,enterprise and household farms successfully. In addition,the micro water harvesting tanks and micro irrigate systems extend quickly in this mountainous county. Up to 2007,more than 12 000 rainwater harvesting tanks had been established and more than 8.5×104 hm2 dry arable land accounting for nearly 75% of the total arable land had been irrigated efficiently. Per capita income of farmer had been increased by 14 times in the past 20 years. Considerable potential for further improvement in implementation of the models for solving water shortage and water resource management in mountain region maybe depend on more local private agriculture enterprises and households than the government. 展开更多
关键词 Water resource management Rainfed agriculture Mountain region Water harvesting
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Irrigation Water Demand Model as a Comparative Tool for Assessing Effects of Land Use Changes for Agricultural Crops in Fraser Valley, Canada 被引量:2
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作者 Skylar Kylstra Autumn D. Watkinson +1 位作者 Lewis Fausak Leslie M. Lavkulich 《Agricultural Sciences》 2021年第8期888-906,共19页
Available water for human needs and agriculture is a growing global concern. Agriculture uses approximately 70% of global freshwater, mainly for irrigation. The Lower Fraser Valley (LFV), British Columbia, is one of t... Available water for human needs and agriculture is a growing global concern. Agriculture uses approximately 70% of global freshwater, mainly for irrigation. The Lower Fraser Valley (LFV), British Columbia, is one of the most productive agricultural regions in Canada, supporting livestock production and a wide variety of crops. Water scarcity is a growing concern that threatens the long-term productivity, sustainability, and economic viability of the LFV’s agriculture. We used the BC Agriculture Water Demand Model as a tool to determine how crop choice, irrigation system, and land-use changes can affect predicted water requirements under these different conditions, which can aid stakeholders to formulate better management decisions. We conducted a comparative assessment of the irrigation water demand of seven major commercial crops, by distinct soil management groups, at nineteen representative sites, that use both sprinkler vs drip irrigation. Drip irrigation was consistently more water-efficient than sprinkler irrigation for all crops. Of the major commercial crops assessed, raspberries were the most efficient in irrigation water demand, while forage and pasture had the highest calculated irrigation water demand. Significant reductions in total irrigation water demand (up to 57%) can be made by switching irrigation systems and/or crops. This assessment can aid LFV growers in their land-use choices and could contribute to the selection of water management decisions and agricultural policies. 展开更多
关键词 Drip Irrigation Sprinkler Irrigation Water management Water resources agricultural Water Demand Model
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Challenge and Perspective of Yangtze River Basin Water Resources Protection
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作者 YUAN Hong-renProfessor-Senior Engineer, Yangtze Valley Water Resources Protection Bureau, Wuhan 430051, China 《人民长江》 北大核心 2002年第S1期50-53,共4页
The major faced problems at present in Yangtze river basin are: ① uneffective control in river water pollution threatens seriously the safety of drinking water; ② shrinkage of lake area and serious eutrophication; ... The major faced problems at present in Yangtze river basin are: ① uneffective control in river water pollution threatens seriously the safety of drinking water; ② shrinkage of lake area and serious eutrophication; ③ soil-water losses degraded the ecological environment of the basin; ④ the impact of TGP and S-N water transfer project on water environment of the basin. In the light of above-mentioned problems, water resources utilization strategy must be adjusted and the sustainable social and economic development should be supported by sustainable water resources utilization, and it is necessary to take the following countermeasures: ① establishing overall flood control and disaster relief system; ② developing high water use efficiency agriculture; ③ taking "giving priority to water saving on the basis of pollution control" as urban water resources utilization strategy; ④ implementing comprehensive pollution control strategy with sources control as main point; ⑤ guaranteing water demand of the ecological environment; ⑥implementing the strategy of maintaining water resources supply and demand balance on the basis of water demand management; ⑦ studying countermeasures for the ecological and environmental impacts of trans-basin water transfer and western China devolopment. The key of realization of sustainable water resources utilization is to reform management and investment mechanism of water resources and water price policy. It is the only way to solve the water resources problems in Yangtze river basin as well as the whole China. 展开更多
关键词 COUNTERMEASURES sustainable utilization WATER resources management mechanism status quo of WATER resourecs YANGTZE rvier
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Traditional Utilization of Aquatic Resources in Eastern Arc Catchments of Tanzania
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作者 Agnes G. Kapinga Abimbola Sangodoyin Olayinka O. Ogunkoya 《Natural Resources》 2019年第5期153-178,共26页
Aquatic resources are vital for human well-being particularly to rural communities that largely depend?onthem for livelihood. Currently, it appears that pressure from human activities related to utilization has impact... Aquatic resources are vital for human well-being particularly to rural communities that largely depend?onthem for livelihood. Currently, it appears that pressure from human activities related to utilization has impacted negatively on catchment management, particularly of the aquatic resources. This study focuses on the aquatic resources found in the Eastern Arc Catchments of Tanzania which include Upper Zigi and Lower Mngeta. The study employs catchment community participatory mapping approach so as to elucidate how man interacts with and modifies the aquatic environment, the impacts of their behavior, and the responses to changes which occur. The aim of the research is to realize a more comprehensive understanding of water resource management from a cultural, social, economic, political, and biological perspective and facilitate sustainable socio-hydrological interaction model. The study found that there are some similarities and differences in aquatic resources management and utilization among communities. Also, it established that there are more aquatic resources in Lower Mngeta catchment than in Upper Zigi catchment. The study found out that the manner of utilization of aquatic resources depends on their availability, levels of skills, knowledge, and beliefs among members of the communities of the catchments. It was also found that the traditional cultural structures that regulated aquatic resource utilization are weakening at an alarming rate due to factors such as modernization and the establishment of?the?formal?institution. Weak traditional structures contribute in many ways to mismanagement and destruction of aquatic resources. The study recommends that ecological database should not only focus on the resources stock, but also on the dynamics of resources utilization. This would lead identification of appropriate local actors with knowledge and skills and cultural advantage who can be involved in planning and management of these important resources. It would also help to reverse the negative impact already experienced, promote sustainable practices and eventually guarantee?theavailability?of adequate aquatic resources for the present and future generation. 展开更多
关键词 TRADITIONAL utilization AQUATIC resources management
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Current Situation and Countermeasures for the Development of Ecological Circular Agriculture in Zhejiang Province 被引量:2
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作者 Shuqiong Qian Fangfang Zhang +2 位作者 Yaqi Wu Jia Jia Shengdao Shan 《Meteorological and Environmental Research》 CAS 2013年第1期61-66,共6页
Based on the analysis of present situation of ecological circular agriculture development in Zhejiang Province, the problems of limited resources, backward technology and capital shortage were proposed, and the soluti... Based on the analysis of present situation of ecological circular agriculture development in Zhejiang Province, the problems of limited resources, backward technology and capital shortage were proposed, and the solutions were put forward to promote the construction of modem agriculture industry system and accelerate the change from the traditional agriculture model to ecological circular agriculture model, such as choosing suitable development models according to local conditions, promoting the construction of agricultural demonstration zones, improving ecological technology, and strengthening the comprehensive utilization of resources and farming system innovation. 展开更多
关键词 Ecological circular agriculture Circular agriculture Economical and intensive utilization of resources Zhejiang Province China
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Composting of Disposal Organic Wastes: Resource Recovery for Agricultural Sustainability
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作者 Mohammad H.Golabi Peggy Denney Clancy Iyekar 《过程工程学报》 CAS CSCD 北大核心 2006年第4期585-591,共7页
One of the major problems of agricultural soils in the tropical regions of the Pacific is the low organic matter content.Because of the hot and humid environment,the soil organic matter(SOM)is minimal due to rapid dec... One of the major problems of agricultural soils in the tropical regions of the Pacific is the low organic matter content.Because of the hot and humid environment,the soil organic matter(SOM)is minimal due to rapid decomposition.Composted organic material is being applied on agricultural fields as an amendment to provide nutrients and enhance the organic matter content for improving the physical and chemical properties of the cultivated soils.In addition land application of composted material as a fertilizer source effectively disposes of wastes that otherwise are buried in landfills.In our soil program at the University of Guam,we are evaluating the use of organic material as an alternative to synthetic fertilizers.Its goal is to develop management strategies and use available resources for improving crop production while conserving resources and preserving environmental quality.Our case study project is designed to improve soil fertility status by using composted organic wastes and assessing how the nitrogen and other essential nutrients contribute to long-term soil fertility and crop productivity without application of synthetic fertilizers.In our pilot project,compost is produced from wood chips,grinded typhoon debris mixed with animal manure,fish feed,shredded paper and other organic wastes.Mature compost is then applied on the field at the rates of 0,5,10 and 20 t/ha as a soil amendment on the eroded cobbly soils of southern Guam.Corn is planted and monitored for growth performance and yield.The effect of land application of composted material on the SOM content and overall soil quality indices are being evaluated in this pilot study. 展开更多
关键词 COMPOSTING resource recovery management soil improvement waste disposal agricultural sustainability
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Effect of a region-wide incorporation of an algorithm based on the 2012 international consensus guideline on the practice pattern for the management of pancreatic cystic neoplasms in an integrated health system
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作者 Andrew Khoi Nguyen Agathon Girgis +12 位作者 Timnit Tekeste Karen Chang Mopelola Adeyemo Armen Eskandari Emilio Alonso Priyanka Yaramada Charles Chaya Albert Ko Edmund Burke Isaiah Roggow Rebecca Butler Aniket Kawatkar Brian S Lim 《World Journal of Clinical Cases》 SCIE 2018年第13期624-631,共8页
AIM To examine the practice pattern in Kaiser Permanente Southern California(KPSC), i.e., gastroenterology(GI)/surgery referrals and endoscopic ultrasound(EUS), for pancreatic cystic neoplasms(PCNs) after the regionwi... AIM To examine the practice pattern in Kaiser Permanente Southern California(KPSC), i.e., gastroenterology(GI)/surgery referrals and endoscopic ultrasound(EUS), for pancreatic cystic neoplasms(PCNs) after the regionwide dissemination of the PCN management algorithm.METHODS Retrospective review was performed; patients with PCN diagnosis given between April 2012 and April 2015(18 mo before and after the publication of the algorithm) in KPSC(integrated health system with 15 hospitals and 202 medical offices in Southern California) were identified.RESULTS2558(1157 pre-and 1401 post-algorithm) received a new diagnosis of PCN in the study period. There was no difference in the mean cyst size(pre-19.1 mm vs post-18.5 mm, P = 0.119). A smaller percentage of PCNs resulted in EUS after the implementation of the algorithm(pre-45.5% vs post-34.8%, P < 0.001). A smaller proportion of patients were referred for GI(pre-65.2% vs post-53.3%, P < 0.001) and surgery consultations(pre-24.8% vs post-16%, P < 0.001) for PCN after the implementation. There was no significant change in operations for PCNs. Cost of diagnostic care was reduced after the implementation by 24%, 18%, and 36% for EUS, GI, and surgery consultations, respectively, with total cost saving of 24%.CONCLUSION In the current healthcare climate, there is increased need to optimize resource utilization. Dissemination of an algorithm for PCN management in an integrated health system resulted in fewer EUS and GI/surgery referrals, likely by aiding the physicians ordering imaging studies in the decision making for the management of PCNs. This translated to cost saving of 24%, 18%, and 36% for EUS, GI, and surgical consultations, respectively, with total diagnostic cost saving of 24%. 展开更多
关键词 PANCREATIC cyst ALGORITHM incorporation Pancreas Optimization of resource utilization Fukuoka CRITERIA Sendai CRITERIA PANCREATIC cancer INTRADUCTAL papillary MUCINOUS neoplasm Practice management ALGORITHM
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An Insight of Ecosystem Capitals and Services of the Kaghan Valley: The Himalayan Region of Pakistan
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作者 Muhammad Qasim Muhammad Zafarullah Khan +1 位作者 Alia Naz Salma Khalid 《Natural Resources》 2013年第2期163-169,共7页
The Kaghan Valley is in the territorial jurisdiction of Mansehera District, named after a tiny village Kaghan, at the end of the valley. The valley culminates in the tree-clad high mountains and glaciers in the North-... The Kaghan Valley is in the territorial jurisdiction of Mansehera District, named after a tiny village Kaghan, at the end of the valley. The valley culminates in the tree-clad high mountains and glaciers in the North-East with varying altitudes from 1 to 5 thousand meters above sea level. The region is relatively active geophysically, hydrologically and biologically diverse by virtue of the altitude and aspect-driven variability in energy and moisture. In such region a better understanding of changes in land resources, production of agronomic and horticultural crops, use of timber and non-timber products, and livestock structure/composition have important implications and understanding these changes along with the indigenous knowledge of mountain people which, is key to sustainable development of the Himalayan region. Our results showed that the main causes of lowest agriculture production in the area are poor crop management in context of the mountains, drought spells, low soil fertility, land fragmentation and tenancy status of the agricultural land. Off season vegetables cultivation on the sloppy land leads to sever soil erosion and soil land degradation of this mountain ecosystem. Overgrazing during the summer season is another problem as the pastures are visited both by the Afghan and local nomads without relating with carrying capacity of the alpine meadows. The overgrazed soil is usually subject to rainfalls and severe soil erosion. Any use of resources of such fragile rare high mountain ecosystem requires a great sense of responsibility but in this case the forest resources are being plundered and are used roughly. We recommend adequate use of agricultural inputs, specific crop management practices for mountain agriculture. Local social welfare organizations should work to create awareness about the sustainable use of natural resources. The government should resolve the ownership problem of land as common property keeping in mind the customary laws of the region to make sure the involvement of all stakeholders. 展开更多
关键词 Natural resources management MOUNTAIN Agriculture LIVELIHOOD Analysis Kaghan VALLEY Pakistan
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Soil Health and Sustainable Land Resource Management Practices at Municipal Level: A Case from Bheri Nagarpalika (Municipality), Jajorkot District, Nepal
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作者 Kabi Prasad Pokhrel 《Journal of Geographical Research》 2020年第2期25-33,共9页
The increasing challenges of pressure and ever-growing demands on limited resources in Nepal by diverse actors,land degradation,biodiversity loss and climate change require the rational use of land resources to sustai... The increasing challenges of pressure and ever-growing demands on limited resources in Nepal by diverse actors,land degradation,biodiversity loss and climate change require the rational use of land resources to sustain and enhance productivity and maintain resilient ecosystems for achieving the sustainable and efficient use of resources,taking into account biophysical and socioeconomic dimensions.Regarding this,Nepal Government has realized and taken initiation of scientific and sustainable land use zoning following the National Land Use Act 2019(2076 B.S.)to use land resources in practicable and sustainable manner.Using spatial information techniques such asZ-3 satellite image,remote sensing(RS),global positioning system(GPS)and geographic information system(GIS).Multicriteria decision making(MCDM)methods for acquiring spatial/temporal data,through expert judgment techniques based on field observation as well as laboratory analysis result,it was found that the soil nutrient status of,the municipality varied spatially and has pH with very high acidic to slightly alkaline but most of the soils are slightly acidic(39.58%).Majority of the soil are loam and sandy loam type with very low to high level of organic matter.Most of the municipal area is under medium range of organic matter.Nitrogen content ranges from very low to very high level as to same ranges of phosphorous(37.69%).Potassium level is also in very high to low as 37 percent land area has high level of potassium.Reclamation of acidic soil mainly in leachable soil is recommended with the proper management of Nitrogen with addition of organic matter is needed to manage for improving crop production. 展开更多
关键词 Land resource management Agriculture sustainability Soil properties Organic matter Land use planning and land use zoning
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水资源保护利用“四水四定”的创新管理模式 被引量:4
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作者 褚俊英 李孟泽 +3 位作者 周祖昊 周添红 全满新 马明月 《水资源保护》 EI CAS CSCD 北大核心 2024年第2期23-27,71,共6页
系统识别了我国水资源保护利用“四水四定”管理中存在的问题,提出了以精准严格的管控指标、权威统一的监测系统、明确有力的管理体制、科学规范的管理制度以及协同高效的管理机制为五大核心体系,以水资源保护利用“四水四定”智慧水务... 系统识别了我国水资源保护利用“四水四定”管理中存在的问题,提出了以精准严格的管控指标、权威统一的监测系统、明确有力的管理体制、科学规范的管理制度以及协同高效的管理机制为五大核心体系,以水资源保护利用“四水四定”智慧水务管控平台为一个平台的水资源保护利用“四水四定”创新管理“5+1”模式;指出未来水资源保护利用“四水四定”管理的发展趋势包括统筹协调现有的水管理系统并实现升级,水量与水权结合面向“四水四定”激活交易市场,规范化建立“四水四定”的执行标准体系以及开展基于微观决策行为的水资源保护利用“四水四定”特定制度设计等方面。 展开更多
关键词 水资源保护利用 “四水四定” 管理模式
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