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基于LoRa的设施农业区自动气象站监测系统设计 被引量:15
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作者 王钧 《中国农机化学报》 北大核心 2018年第5期82-86,共5页
针对设施农业区对气象站采集数据密度和时效性要求高的特点,利用传感器技术、LTE移动通信技术和LoRa无线通信技术,设计适合于设施农业区使用的自动气象站远程监测系统。以传感器模块和LoRa无线通信网络为核心,实现设施农业区气象数据大... 针对设施农业区对气象站采集数据密度和时效性要求高的特点,利用传感器技术、LTE移动通信技术和LoRa无线通信技术,设计适合于设施农业区使用的自动气象站远程监测系统。以传感器模块和LoRa无线通信网络为核心,实现设施农业区气象数据大范围的无线采集;利用覆盖范围更广的LTE移动通信技术实现本地的气象数据的远程传输;气象站远程监测平台采用B/S架构,可以实现气象数据的查询、存储和数据分析等功能。测试表明,该系统在网络稳定性、信号服务质量、数据采集的时效、系统功耗等方面均能满足气象数据采集的实际需要,可以实现对气象数据的远程实时监测。 展开更多
关键词 设施农业区 自动气象站 传感器技术 LTE LoRa
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青海高原东部设施农业区土壤氮素时空累积及淋失风险评价 被引量:3
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作者 李本措 塔林葛娃 +1 位作者 李月梅 李凤桐 《江苏农业科学》 2019年第3期244-249,共6页
为研究青海省东部设施农业区土壤氮素的时空累积特点,分别分层采集互助县、平安区、乐都区、民和回族土族自治县4个典型设施农业(县)区34个1 m土体剖面样本,研究了不同种植年限条件下土壤硝态氮、铵态氮及全氮含量的空间分布和累积特点... 为研究青海省东部设施农业区土壤氮素的时空累积特点,分别分层采集互助县、平安区、乐都区、民和回族土族自治县4个典型设施农业(县)区34个1 m土体剖面样本,研究了不同种植年限条件下土壤硝态氮、铵态氮及全氮含量的空间分布和累积特点,并根据土壤中硝态氮残留进行淋失风险等级评价。结果表明:随着设施农业栽培年限的增加,土壤中氮素含量呈逐渐累积态势,尤其在连续种植15~20年后,1 m土体中土壤硝态氮、铵态氮及全氮含量达到最大值,分别为417.55 kg/hm^2、40.98 kg/hm^2、9.35 t/hm^2。不同种植年限下土壤硝态氮、铵态氮和全氮含量的剖面垂直分布规律相同,均随土层深度的增加呈下降趋势。随着种植年限的增加,设施农业土壤硝态氮残留量对环境风险不断增强,设施农业区连续种植10~15、15~20年,残留风险达到强度潜在污染等级,将会威胁地下水环境安全。 展开更多
关键词 青海高原 设施农业区 硝态氮 种植年限 风险等级
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淮海经济区设施农业发展潜力与发展策略研究 被引量:1
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作者 赵海侠 《新经济》 2022年第10期45-47,共3页
中国现代化农业发展趋势之一就是设施农业,大力发展设施农业具有重要的现实意义。淮海经济区设施农业发展潜力较大,笔者从设施农业发展技术、人员素质、市场等角度提出了应对措施,为淮海经济区设施农业发展提供参考建议。
关键词 淮海经济设施农业 发展潜力 发展策略
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万佛湖现代农业科技示范园的规划和设计 被引量:1
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作者 刘子川 《生产率系统》 2001年第1期36-37,45,共3页
现代受精科技示范园突破传统的概念,立足于高新科技,全面展示现代农业发展的新模式。本文结合实际项目对这种特殊性质的“园”进行了较为详细的总体初步规划设计方面的探讨。
关键词 现代农业科技示范园 功能分 专项规划 万佛湖 设施农业区 生态农业
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设施蔬菜土壤重金属含量的测定及潜在生态风险研究 被引量:2
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作者 董志超 程全国 +2 位作者 李晔 王浩东 赵梦竹 《黑龙江农业科学》 2018年第11期90-93,共4页
为深入研究设施蔬菜土壤中的重金属情况,通过采集辽宁省沈阳市周边地区设施农业农田土样及相应的地下水样品,分析了农田土壤中重金属含量的积累及对地下水污染程度以及潜在的生态风险。结果表明:土壤有机质平均值2.46%,硝态氮为75.87~9... 为深入研究设施蔬菜土壤中的重金属情况,通过采集辽宁省沈阳市周边地区设施农业农田土样及相应的地下水样品,分析了农田土壤中重金属含量的积累及对地下水污染程度以及潜在的生态风险。结果表明:土壤有机质平均值2.46%,硝态氮为75.87~91.49mg·kg^(-1),速效磷为22.30~28.95mg·kg^(-1),速效钾为54.51~125.90mg·kg^(-1),硝态氮、速效磷和速效钾在设施土壤中出现了大量的累积,并且随着种植年限的增加,累积强度增大;设施农业区土壤尚未发生重金属污染超标现象;但棚内土壤重金属明显较高,设施农业区供试土壤样品镉均接近了临界值1mg·kg^(-1),设施农业区灌溉用浅层地下水,重金属含量和部分营养盐的含量均低于国家地下水环境质量标准,但硝酸盐和亚硝酸盐含量偏高。铅含量较高,潜在生态风险达到中等。分析得出大量使用家禽粪便和含钙镁磷肥等复合肥导致土壤重金属的积累,并且随着种植年份的增加容易导致区域地下水富营养化。为有效地降低环境风险,建议适当降低施肥量,种植抗重金属污染能力较强的蔬菜。 展开更多
关键词 设施农业区 土壤重金属 地下水 生态风险
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An indicator-based approach to assess village-level social and biophysical vulnerability of agriculture communities in Uttarakhand,India 被引量:2
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作者 Roopam SHUKLA Kamna SACHDEVA Pawan Kumar JOSHI 《Journal of Mountain Science》 SCIE CSCD 2016年第12期2260-2271,共12页
With the growing recognition to myriad forms of current and future threats in the mountain agriculture systems,there is a pressing need to holistically understand the vulnerability of mountain agriculture communities.... With the growing recognition to myriad forms of current and future threats in the mountain agriculture systems,there is a pressing need to holistically understand the vulnerability of mountain agriculture communities.The study aims to assess the biophysical and social vulnerability of agriculture communities using an indicator-based approach for the state of Uttarakhand,India.A total of 14 indicators were used to capture biophysical vulnerability and 22 for social vulnerability profiles of15285 villages.Vulnerability analysis was done at village level with weights assigned to each indicator using Analytical Hierarchical Process(AHP).The results of the study highlight the presence of very high biophysical vulnerability(0.82 ± 0.10) and high social vulnerability(0.65 ± 0.15) within the state.Based on the results,it was found that incidences of high biophysical vulnerability coincide with presence of intensified agriculture land and absence of dense forest.Higher social vulnerability scores were found in villages with an absence of local institutions(like Self Helping Groups(SHGs)),negligible infrastructure facilities and higher occupational dependence on agriculture.A contrast was observed in the vulnerability scores of villages present in the three different altitudinal zones in the study area,indicating respective vulnerability generating conditions existing in these three zones.Biophysical vulnerability was recorded to be highest in the villages falling in the lower zone and lowest in the upper zone villages;whereas,social vulnerability was found to be highest in the middle zone villages and lowest in lower zone villages.Our study aids policy makers in identifying areas for intervention to expedite agriculture adaptation planning in the state.Additionally,the adaptation programmes in the region need to be more context-specific to accommodate the differential altitudinal vulnerability profiles. 展开更多
关键词 Social vulnerability Biophysical vulnerability Mountain agriculture communities AHP Uttarakhand
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Zakat, Local Social Organization, and Social Capital in Rural Economic Development
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《Sociology Study》 2012年第3期189-197,共9页
Zakat as a source of development funding encourages well functioning of local organizations and social capital formation. Zakat management conducted by an organization with a set of norms promotes the development of l... Zakat as a source of development funding encourages well functioning of local organizations and social capital formation. Zakat management conducted by an organization with a set of norms promotes the development of local community organizations' function for the rural economic development activities. A case study was conducted in the Village of Patila, South Sulawesi Province. The community in this village successfully managed the selfsupporting development of social and agriculture infrastructures. Data collected were the activities of local organization of the board members of the mosque and educational development foundations, farmer group, and collective stall group. The results showed that a community truth on the mosque and educational development foundations was formed by the social infrastructure development of mosque and schools through the effectiveness of the zakat payment by rules (norms). Both development foundations could function well through the network with villagers who migrate to other island as a potential zakat payer. Strengthening the social development organization supported the development of collective stall and pump farming system. The process of social and economic development in the Village of Patila as well as social capital formation encouraged people to carry out selfsupport development activities. 展开更多
关键词 ZAKAT local organization social capital rural economic development
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