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SUSTAINABLE USE OF LAND RESOURCE AND ITS EVALUATION IN COUNTY AREA—A Case of Guangxi Zhuang Autonomous Region, China 被引量:1
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作者 Liao Chi-mei Li Lan +1 位作者 Yan Zhi-qiang Peng Ding-xin 《Chinese Geographical Science》 SCIE CSCD 2002年第1期61-67,共7页
Sustainable use of natural resources is different from sustainable development. As the most important natural resource, sustainable use of land resource is the essential guarantee of sustainable development. The natur... Sustainable use of natural resources is different from sustainable development. As the most important natural resource, sustainable use of land resource is the essential guarantee of sustainable development. The nature of sustainable use of land resource is to retain the quantity and productivity of land resource from generation to generation.The evaluation of sustainable use of land resource is an important method to ensure land use to get onto the sustainable track. Furthermore, building index system is the key of the evaluation. In view of tendency of the evaluation indexes chosen so widely, the evaluation indexes should include only three kinds in the researches on the evaluation of sustainable use of land resource. The first is the stock and structure index of land resource, viz. Areas quantity structure of land resources. In China, it is especially paid attention to the per person index of land quantity and rate between cultivated land and farmland. The second is the productive index of land, which includes the productivity, potentiality, stability and renewal situation of land. The third is the sustained index of land environment. On the evaluation research of area level, we should lay particular emphasis on statistic indexes. With a case of Guangxi Zhuang Autonomous Region in China, the evaluation index system of sustainable land use in county area has been built in this thesis. Using the weighted average method to calculate the means of sustainable land use in each county, according to the land using situation, all counties in the autonomous region have been divided into three types. (1) Sustainable Pattern contains 18 counties, which have higher land resource productivity, stronger sustained abilities of land environment .The economic benefits of land using in these counties are obviously higher. These counties have gotten highly intensive farming, and they are all in the good circumstance. (2) Basically Sustained Pattern contains 48 counties, which productivity of land resource is of middle level. In part of counties and cities, the stock of land resource inclines to lower level, but their land using potentialities are still greater. Through changing land using pattern, these counties can rapidly enter in a good circumstance. (3) Critically Sustained Pattern contains 14 counties, which are mostly in the karst mountain areas. They have less stock of land resource, lower productivity and more extensive cultivation. The productivity of land renewing has been hindered, so it urgently need to be renovated. At last, the writers have explored the basic ways of sustainable use of land resource in Guangxi, China — (1) Retain the stock of land resource and strictly manage farmland uses. (2) Strengthen the value accounting of land resource, and control the farmland occupation of non agricultural construction. (3) Depend on technology advanced, optimize the land using structure, and promote the productive level. (4) Carry out land management all round, and improve the ecological environment of land resource. (5) Enhance evaluation researche and land monitoring, and promote the sustainable utilization level of land resource. 展开更多
关键词 sustainable use of land resource land evaluation evaluation index county area GUANGXI
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Climate change, water resources and sustainable development in the arid and semi-arid lands of Central Asia in the past 30 years 被引量:23
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作者 YU Yang PI Yuanyue +7 位作者 YU Xiang TA Zhijie SUN Lingxiao Markus DISSE ZENG Fanjiang LI Yaoming CHEN Xi YU Ruide 《Journal of Arid Land》 SCIE CSCD 2019年第1期1-14,共14页
The countries of Central Asia are collectively known as the five "-stans": Uzbekistan, Kyrgyzstan, Turkmenistan, Tajikistan and Kazakhstan. In recent times, the Central Asian region has been affected by the ... The countries of Central Asia are collectively known as the five "-stans": Uzbekistan, Kyrgyzstan, Turkmenistan, Tajikistan and Kazakhstan. In recent times, the Central Asian region has been affected by the shrinkage of the Aral Sea, widespread desertification, soil salinization, biodiversity loss, frequent sand storms, and many other ecological disasters. This paper is a review article based upon the collection, identification and collation of previous studies of environmental changes and regional developments in Central Asia in the past 30 years. Most recent studies have reached a consensus that the temperature rise in Central Asia is occurring faster than the global average. This warming trend will not only result in a higher evaporation in the basin oases, but also to a significant retreat of glaciers in the mountainous areas. Water is the key to sustainable development in the arid and semi-arid regions in Central Asia. The uneven distribution, over consumption, and pollution of water resources in Central Asia have caused severe water supply problems, which have been affecting regional harmony and development for the past 30 years. The widespread and significant land use changes in the 1990 s could be used to improve our understanding of natural variability and human interaction in the region. There has been a positive trend of trans-border cooperation among the Central Asian countries in recent years. International attention has grown and research projects have been initiated to provide water and ecosystem protection in Central Asia. However, the agreements that have been reached might not be able to deliver practical action in time to prevent severe ecological disasters. Water management should be based on hydrographic borders and ministries should be able to make timely decisions without political intervention. Fully integrated management of water resources, land use and industrial development is essential in Central Asia. The ecological crisis should provide sufficient motivation to reach a consensus on unified water management throughout the region. 展开更多
关键词 Central ASIA climate change water resources ARID and SEMI-ARID lands land use changes sustainable DEVELOPMENT SOCIO-ECONOMIC DEVELOPMENT
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Surface runoff processes and sustainable utilization of water resources in Manas River Basin, Xinjiang, China 被引量:18
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作者 HongBo LING HaiLiang XU +1 位作者 JinYi FU XinHua LIU 《Journal of Arid Land》 SCIE 2012年第3期271-280,共10页
Water is the important resource to guarantee the existence and development of oases in arid areas. To improve the utilization efficiency of water resources in Manas River Basin, this paper investigated the trends and ... Water is the important resource to guarantee the existence and development of oases in arid areas. To improve the utilization efficiency of water resources in Manas River Basin, this paper investigated the trends and periods of runoff based on the runoff and climate data for the past 50 years. Subsequently, with the socioeconomic and water resources data, we studied a comprehensive evaluation on the water security in this area. The results indicated that the stream flows in the three hydrological stations of Hongshanzui, Kensiwat and Bajiahu have sig- nificantly increased and undergone abrupt changes, with periods of 18 and 20 years. According to assessment, water security in the Manas River Basin was at an unsafe level in 2008. In criterion layer, the ecological security index and the index of supply-demand situation are both at the relatively secure level; the quantity index and so- cioeconomic index of water resources are at the unsafe level and basic security level, respectively. Therefore, in order to achieve sustainable economic and social development within the Manas River Basin, it is vital to take a series of effective measures to improve the status of water security. 展开更多
关键词 surface runoff processes period and trend sustainable utilization water resources the Manas River Basin fuzzycomprehensive evaluation
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Research on the Sustainable Utilization of Water Resources of Jinan City 被引量:1
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作者 Tian Aimin Jiang Feng +2 位作者 Dong Ning Tian Aijie Jiang Anxi 《Chinese Journal of Population,Resources and Environment》 2010年第4期55-60,共6页
The study on the sustainable utilization of water resources of Jinan city is a research hotspot in the urban sustainable development field.How to use a scientific and rational evaluation index system to analyze the su... The study on the sustainable utilization of water resources of Jinan city is a research hotspot in the urban sustainable development field.How to use a scientific and rational evaluation index system to analyze the sustainable utilization of water resources of Jinan city and then guide the development and utilization of water resources becomes particularly important.Based on the theory of sustainable development this study introduces the method,basic steps and evaluation indexes of the assessment of the development and utilization of water resources.By systemic analyzing the exploitation and utilization standards of water resources and economy and society in Jinan city,the evaluation and index system of sustainable utilization of water resources in Jinan city can be constructed and index weight can be confirmed,and then,the standard of sustainable utilization of water resources in different years can be analyzed comparably.Thus,the deficiency of lack of reflection of coordination extent in water resources development standard,society and economy in traditional evaluation method is settled efficiently.The paper takes the sustainable utilization of water resources of Qingdao City in 2008 as the standard to compare and assess the water resources utilization in Jinan City.The paper also collects data of water resources in Jinan City from 2001 to 2007.The result indicates that evaluation method is of feasibility and it is effective to the implementation of sustainable utilization strategy water resources in Jinan City. 展开更多
关键词 water resources in Jinan city sustainable utilization index system synthesis evaluation
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Effects of biodegradable mulch on soil water and heat conditions,yield and quality of processing tomatoes by drip irrigation 被引量:3
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作者 JIA Hao WANG Zhenhua +4 位作者 ZHANG Jinzhu LI Wenhao REN Zuoli JIA Zhecheng WANG Qin 《Journal of Arid Land》 SCIE CSCD 2020年第5期819-836,共18页
To combat the problem of residual film pollution and ensure the sustainable development of agriculture in oasis areas,a field experiment was carried out in 2019 at the Wuyi Farm Corps Irrigation Center Test Station in... To combat the problem of residual film pollution and ensure the sustainable development of agriculture in oasis areas,a field experiment was carried out in 2019 at the Wuyi Farm Corps Irrigation Center Test Station in Urumqi,Northwest China.Four types of biodegradable mulches,traditional plastic mulchs and a control group(bare land;referred to as CK)were compared,including a total of six different treatments.Effects of mulching on soil water and heat conditions as well as the yield and quality of processing tomatoes under drip irrigation were examined.In addition,a comparative analysis of economic benefits of biodegradable mulches was performed.Principal component analysis and gray correlation analysis were used to evaluate suitable mulching varieties for planting processing tomatoes under drip irrigation.Our results show that,compared with CK,biodegradable mulches and traditional plastic mulch have a similar effect on retaining soil moisture at the seedling stage but significantly increase soil moisture by 0.5%-1.5%and 1.5%-3.0%in the middle and late growth periods(P<0.050),respectively.The difference in the thermal insulation effect between biodegradable mulch and plastic mulch gradually reduces as the crop grows.Compared with plastic mulch,the average soil temperature at 5-20 cm depth under biodegradable mulches is significantly lowered by 2.04°C-3.52°C and 0.52°C-0.88°C(P<0.050)at the seedling stage and the full growth period,respectively,and the water use efficiency,average fruit yield,and production-investment ratio under biodegradable mulches were reduced by 0.89%-6.63%,3.39%-8.69%,and 0.51%-6.33%(P<0.050),respectively.The comprehensive evaluation analysis suggests that the black oxidized biological double-degradation ecological mulch made from eco-benign plastic is the optimal film type under the study condition.Therefore,from the perspective of sustainable development,biodegradable mulch is a competitive alternative to plastic mulch for large-scale tomato production under drip irrigation in the oasis. 展开更多
关键词 biodegradable plastic mulch processing tomato water use efficiency soil water and heat comprehensive evaluation regional agricultural sustainability XINJIANG
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Assessment of Nutrient Leaching Losses and Crop Uptake with Organic Fertilization,Water Saving Practices and Reduced Inorganic Fertilizer
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作者 Xiaotong Liu Muhammad Amjad Bashir +7 位作者 Yucong Geng Qurat-Ul-Ain Raza Abdur Rehim Muhammad Aon Jianhang Luo Ying Zhao Xuejun Zhang Hongbin Liu 《Phyton-International Journal of Experimental Botany》 SCIE 2023年第5期1555-1570,共16页
The increasing world population has forced excessive chemical fertilizer and irrigation to complete the global food demand,deteriorating the water quality and nutrient losses.Short-term studies do not compile the evid... The increasing world population has forced excessive chemical fertilizer and irrigation to complete the global food demand,deteriorating the water quality and nutrient losses.Short-term studies do not compile the evidences;therefore,the study aimed to identify the effectiveness of reduced doses of inorganic fertilizer and water-saving practices,hence,a six-year experiment(2015-2020)was conducted in China to address the knowledge gap.The experimental treatments were:farmer accustomed fertilization used as control(525:180:30 kg NPK ha^(-1)),fertilizer decrement(450:150:15 kg NPK ha^(-1)),fertilizer decrement+water-saving irrigation(450:150:15 kg NPK ha^(-1)),application of organic and inorganic fertilizer+water-saving irrigation(375:120:0 kg NPK ha^(-1)+4.5 tones organic fertilizer ha^(-1)),and application of controlled-release fertilizer(80:120:15 kg NPK ha^(-1)).Each treatment was replicated thrice following a randomized complete block design.The results achieved herein showed that control has the highest losses in the six-year study for total nitrogen(225.97 mg L^(-1)),total soluble nitrogen(121.58 mg L^(-1)),nitrate nitrogen(0.93 mg L^(-1)),total phosphorus(0.57 mg L^(-1)),and total soluble phosphorus(0.57 mg L^(-1))respectively.Reduced fertilizer and water application improved crop nutrient uptake,nitrogen concentration was significantly enhanced with organic and inorganic fertilizer+water-saving irrigation,P concentration was increased with fertilizer decrement+water-saving irrigation,and K concentration was improved with fertilizer decrement+water-saving irrigation.Hence,this study concludes that reduced inorganic fertilizer dose combined with water-saving practices is significantly helpful in reducing nutrient leaching losses and improving nutrient uptake and water pollution.Further studies are needed to explore the impacts of reduced fertilization and water-saving irrigation on leaching losses.The benefits at different climatic conditions,soil types,and fertilizer types with application methods are also a research gap. 展开更多
关键词 Corn production feeding system water consumption efficiency sustainable agriculture water use
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Management Implications of Aquifer Fractures on Ecosystem and Habitat Suitability for Panthers in Southern Florida
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作者 Wenjing Xu Sergio Bernardes +1 位作者 Sydney T. Bacchus Marguerite Madden 《Journal of Geoscience and Environment Protection》 2018年第2期184-208,共25页
Our case study analyzed the proximity of previously mapped fractures in the aquifer matrix to 93 Florida panther (Puma concolor coryi) dens mapped from 2007-2016 in south Florida. Dens occurred in five counties (Colli... Our case study analyzed the proximity of previously mapped fractures in the aquifer matrix to 93 Florida panther (Puma concolor coryi) dens mapped from 2007-2016 in south Florida. Dens occurred in five counties (Collier = 77, Dade = 1, Hendry = 9, Lee = 5, and Monroe = 1) and three sub-basins of the Greater Everglades Basin (Big Cypress Swamp = 83, Caloosahatchee = 3, and Everglades = 7). Fractured aquifers occur worldwide, but are not the focus of habitat suitability studies, despite evidence that fractures influence plant species composition and density. Habitat alterations can occur many kilometers from the surface footprint of groundwater alterations in the regional Floridan aquifer system via preferential flow through fractures. Increased natural discharge from and recharge to the aquifer occur at fracture intersections. Greater induced recharge and habitat changes also may occur at fracture intersections. All dens were within 5 km of a previously mapped fracture;36% and 74% were within 1 km and 2 km, respectively, of those fractures;and 47%, 74%, and 90% of dens were within 2 km, 3.25 km and 5 km, respectively, from the nearest fracture intersection. Results suggest fractures influence the suitability and/or availability of habitat for panther dens, selection of den sites, and availability as well as abundance of high quality prey items essential for the nutritional demands of successfully rearing panther kittens in the wild. We recommend more detailed investigations of: a) vegetation characteristics near dens, b) groundwater alterations and cumulative impacts of those alterations associated with fractures in panther habitat (e.g., altered plant species composition and density), and c) influence of aquifer fractures in all habitats underlain by fractures. 展开更多
关键词 ECOSYSTEM Management Forest LAND and water resources GEOGRAPHIC Information System (GIS) LAND use Remote Sensing sustainability
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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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河南省引黄受水区农业水资源安全综合评价
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作者 张修宇 赵济泽 +1 位作者 李颖博 宓金鹏 《人民黄河》 CAS 北大核心 2024年第10期78-82,共5页
农业水资源安全对粮食安全、生态环境和农村经济发展意义重大。为推动区域农业水资源高效利用和可持续发展,综合考虑不确定性和复杂性因素的影响,采用序关系分析法、熵权法、TOPSIS法,选取水资源禀赋、生态环境和水资源利用3个子系统11... 农业水资源安全对粮食安全、生态环境和农村经济发展意义重大。为推动区域农业水资源高效利用和可持续发展,综合考虑不确定性和复杂性因素的影响,采用序关系分析法、熵权法、TOPSIS法,选取水资源禀赋、生态环境和水资源利用3个子系统11个指标,构建评价指标体系,评估2022年河南省引黄受水区14个地级市的农业水资源安全状况。结果表明:14个地级市中除开封市为水资源“不安全”等级以及新乡市、鹤壁市、濮阳市为水资源“一般安全”等级外,其他10个地级市均为水资源“较安全”等级,距离“安全”等级还有一定距离。建议采取提升水质、增加可利用水资源量、调整作物种植结构、提高水资源利用效率、实施最严格水资源管理制度等措施,保障河南省引黄受水区农业水资源安全。 展开更多
关键词 农业水资源 安全评价 序关系分析法 熵权法 TOPSIS法 引黄受水区 河南省
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基于代谢理论的城市群水资源承载力综合评价
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作者 吴嘉伟 刘泓汐 +1 位作者 李春晖 易雨君 《水利水电技术(中英文)》 北大核心 2024年第6期58-71,共14页
【目的】随着中国城市群的可持续发展,水资源短缺和时空分布不均等问题日益突出,水资源承载力对城市群的可持续发展具有重要的理论和现实意义【方法】基于区域水资源代谢理论,构建综合考虑区域水资源特征、社会经济系统特征和可持续发... 【目的】随着中国城市群的可持续发展,水资源短缺和时空分布不均等问题日益突出,水资源承载力对城市群的可持续发展具有重要的理论和现实意义【方法】基于区域水资源代谢理论,构建综合考虑区域水资源特征、社会经济系统特征和可持续发展原则的评价指标体系,采用TOPSIS计算了2019年京津冀城市群(BTHUA)的水资源承载力(WRCC)指数。在综合分析区域水资源现状的基础上,提出了提高区域水资源承载力的建议。【结果】结果显示:2019年BTHUA的整体承载能力指数并不高,北京市(0.5612)、天津市(0.5306)和唐山市(0.4075)评分较高,WRCC处于中等水平,仍有进一步发展的潜力。石家庄市(0.3843)、秦皇岛市(0.3165)、衡水市(0.2952)、承德市(0.2935)和邢台市(0.2674)评分中等,WRCC达到了临界值,并且发展潜力有限。而廊坊市(0.2214)、邯郸市(0.2188)、张家口市(0.2115)、保定市(0.2086)、沧州市(0.2026)评分偏低,WRCC达到上限,进一步发展的潜力非常有限。【结论】根据物质流分析,(1)水资源系统上,京津冀地区整体水资源生产能力不容乐观,水资源开发潜力不足;(2)社会经济上,BTHUA社会规模已经超过了水资源的承载能力,未来还将继续扩大;(3)生态系统上,除北京、天津、秦皇岛市,其余城市生态用水占比皆达不到标准。该研究考虑整个用水系统,可以得到比其他方法更全面、更准确的水资源承载力状况,可以为制定科学、可持续的水资源发展战略提供参考,并提供水资源利用政策和未来社会经济发展的建议。 展开更多
关键词 水资源承载力 京津冀城市群 综合评价 代谢理论 TOPSIS方法 水资源 时空分布 可持续发展
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智能喷灌系统在干旱地区农业生产中的应用 被引量:1
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作者 宋雪梅 《中国农机装备》 2024年第6期17-19,共3页
智能喷灌系统在干旱地区的农业生产中显著提升了水资源利用效率和作物产量。通过集成传感器技术、数据采集与处理及自动化控制技术,系统能精准调节灌溉量,满足作物需水需求,减少水资源浪费。同时,智能喷灌系统提高了作物产量,降低了人... 智能喷灌系统在干旱地区的农业生产中显著提升了水资源利用效率和作物产量。通过集成传感器技术、数据采集与处理及自动化控制技术,系统能精准调节灌溉量,满足作物需水需求,减少水资源浪费。同时,智能喷灌系统提高了作物产量,降低了人工成本,促进了农业生产的可持续发展。在阐述智能喷灌系统在干旱地区农业生产中应用的基础上,分析其在提升水资源利用效率、增加作物产量和质量方面的效果,为现代农业发展提供参考。 展开更多
关键词 智能喷灌 干旱地区 水资源利用 农业可持续发展
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基于DPSIR-TOPSIS模型的寒地黑土区水土资源可持续利用评价研究
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作者 黄彦 徐聪 司振江 《节水灌溉》 北大核心 2024年第12期26-31,40,共7页
为帮助地方政府和相关机构做出合理有效的决策,促进水土资源的可持续利用和区域的可持续发展,以黑龙江省克山县为研究区,基于DPSIR模型和主成分分析法构建寒地黑土区水土资源可持续利用评价指标体系,利用TOPSIS方法测算2013-2021年克山... 为帮助地方政府和相关机构做出合理有效的决策,促进水土资源的可持续利用和区域的可持续发展,以黑龙江省克山县为研究区,基于DPSIR模型和主成分分析法构建寒地黑土区水土资源可持续利用评价指标体系,利用TOPSIS方法测算2013-2021年克山县水土资源可持续利用水平。结果显示:(1)各子系统在2013-2021年间呈不同波动上升趋势,其中响应子系统对克山县水土资源可持续利用水平的贡献率最高。(2)克山县水土资源可持续利用水平在2013-2021年间呈波动上升趋势,可持续状态由弱可持续转为可持续。(3)制约克山县水土资源可持续利用水平的障碍因子主要为除涝面积、旱田耕地面积、水利支出、农村用电量和耕地保护面积。响应子系统对提升水土资源可持续利用水平有重要作用,地方政府可以增加水利支出,优化除涝设施,调整旱田耕地的管理方式以及加强耕地保护力度,从而进一步提升水土资源的可持续利用水平。 展开更多
关键词 可持续利用评价指标体系 水土资源 障碍因子 DPSIR-TOPSIS模型 黑土区
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农业灌溉水资源调度优化策略研究
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作者 王先锋 《现代工程科技》 2024年第11期13-16,共4页
随着全球水资源短缺和农业需求增长,有效的水资源调度对于农业灌溉至关重要。分析了水资源调度对农业灌溉的影响,并探索优化策略。研究重点包括水资源分配机制、灌溉效率、节水技术应用、政策法规的影响,以及水资源可持续管理与案例分... 随着全球水资源短缺和农业需求增长,有效的水资源调度对于农业灌溉至关重要。分析了水资源调度对农业灌溉的影响,并探索优化策略。研究重点包括水资源分配机制、灌溉效率、节水技术应用、政策法规的影响,以及水资源可持续管理与案例分析。研究结果表明,通过科学的调度策略和技术创新,可以有效提高水资源利用效率,保障农业生产的可持续发展。 展开更多
关键词 水资源调度 农业灌溉 节水技术 水资源管理 可持续发展
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小型农田水利工程规划设计研究
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作者 胡顺斌 《现代工程科技》 2024年第11期37-40,共4页
小型农田水利工程的规划设计是提高农田灌溉效率和保障农业生产的重要环节。旨在探讨小型农田水利工程规划设计问题,并提出相应解决方案。首先,通过对小型农田水量需求进行调查和分析,确定了合理的灌溉水量。其次,针对农田的地形、土壤... 小型农田水利工程的规划设计是提高农田灌溉效率和保障农业生产的重要环节。旨在探讨小型农田水利工程规划设计问题,并提出相应解决方案。首先,通过对小型农田水量需求进行调查和分析,确定了合理的灌溉水量。其次,针对农田的地形、土壤类型和作物种植情况,采用地理信息系统(Geographic Information System,GIS)技术进行数据采集和分析,以确定最佳的灌溉方式和灌溉设施布局。接着,结合农田的自然环境和社会经济条件,制定了适合农田的水资源管理和利用策略。最后,通过实地调研和模拟分析,验证了所提出的规划设计方案的可行性和有效性。研究结果表明,科学合理的小型农田水利工程规划设计可以提高农田的灌溉效率,减少水资源浪费,促进农业可持续发展。因此,该研究对于小型农田水利工程的规划设计具有一定的实践意义和指导价值。 展开更多
关键词 小型农田水利工程 规划设计 灌溉效率 水资源管理 农业可持续发展
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土地整治中农田水利设施建设对农业产能的影响
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作者 黄志文 《工程建设(维泽科技)》 2024年第11期16-18,共3页
通过科学规划和建设农田水利设施,显著提升了水资源利用效率,为补充耕地提供了坚实的支撑。实施的土地平整、土壤改良和灌溉排水工程有效增强了农田水资源保持能力。现代化灌溉技术的推广,如智能灌溉系统和节水灌溉技术,确保了作物在关... 通过科学规划和建设农田水利设施,显著提升了水资源利用效率,为补充耕地提供了坚实的支撑。实施的土地平整、土壤改良和灌溉排水工程有效增强了农田水资源保持能力。现代化灌溉技术的推广,如智能灌溉系统和节水灌溉技术,确保了作物在关键生长期的水分供应,提升了农业生产效率。然而,水利设施老化和资源浪费的问题仍然存在,亟须强化维护和科学规划。通过多方参与的管理机制和科技创新,实现农业的可持续发展,确保粮食安全和生态环境的和谐。 展开更多
关键词 土地整治 垦造水田 农田水利设施 水资源利用 节水灌溉 农业产能 可持续发展
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DRYING UP OF THE YELLOW RIVER &ITS WATER RESOURCE BEARING CAPACITY
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作者 Feng Lihua (Department of Geography, Zhejiang Normal University, Jinhua 321004, Zhejiang) 《Natural Disaster Reduction in China》 2002年第4期18-21,共4页
The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refe... The paper analyses the space time characteristics, primary causes and disastrous effects of the drying up of the Yellow River, and proposes the concept of "water resource bearing capacity (WRBC)", which refers to the maximum bearing capacity of a river in meeting human demands for water on the precondition of sound recycling of the ecosystem. The concept encourages cautious human actions to save and conserve water resources. 展开更多
关键词 DRYING up of the YELLOW River water environment water resource BEARING capacity sustainable use
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区域水资源承载力概念及研究方法的探讨 被引量:242
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作者 段春青 刘昌明 +2 位作者 陈晓楠 柳文华 郑红星 《地理学报》 EI CSCD 北大核心 2010年第1期82-90,共9页
在总结区域水资源承载力研究历史和现状的基础上,阐述了水资源承载力的内涵和特点,对目前各种水资源承载力的定义进行比较,分析其中深层次的联系,提出了以"可支撑的合理规模"来描述水资源承载能力的概念。在此基础上,从"... 在总结区域水资源承载力研究历史和现状的基础上,阐述了水资源承载力的内涵和特点,对目前各种水资源承载力的定义进行比较,分析其中深层次的联系,提出了以"可支撑的合理规模"来描述水资源承载能力的概念。在此基础上,从"社会经济—水资源—生态、环境"复合系统角度综合分析了节水措施对水资源承载力的影响,提出了基于现代进化算法的思想的水资源承载力计算思路。将该模型应用于辽河流域水资源承载力的研究中,分析计算了该地区在规划水平年水资源可承载的规模。实例证明,该模型能够综合反映出水资源的承载规模,可以为当地的发展提供科学依据。 展开更多
关键词 水资源 承载力 可持续发展 评价方法 辽河
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农业水资源利用效用评价研究进展 被引量:40
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作者 雷波 刘钰 +1 位作者 许迪 姜文来 《水科学进展》 EI CAS CSCD 北大核心 2009年第5期732-738,共7页
效用问题是农业水资源利用的关键和核心。构建科学合理的指标体系评价农业水资源利用效用对于实现农业水资源持续高效利用有着重要的意义。国内外对水资源利用效用评价的理论和方法研究经历了由单一的用水效率评价向以效率和效益有机结... 效用问题是农业水资源利用的关键和核心。构建科学合理的指标体系评价农业水资源利用效用对于实现农业水资源持续高效利用有着重要的意义。国内外对水资源利用效用评价的理论和方法研究经历了由单一的用水效率评价向以效率和效益有机结合为特征的效用评价的发展历程,其评价尺度也从最初的作物或田间等微观尺度向灌区、流域、国家乃至全球等中观和宏观尺度发展。未来农业水资源利用效用评价研究发展的重点,将集中在建立基于不同尺度水平衡观点上的农业水资源利用效用评价指标体系以及不同尺度指标的尺度效应及转换等方面。 展开更多
关键词 农业水资源 效用 评价 进展
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北京市水足迹及农业用水结构变化特征 被引量:72
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作者 黄晶 宋振伟 陈阜 《生态学报》 CAS CSCD 北大核心 2010年第23期6546-6554,共9页
运用水足迹的理论和方法计算评价了1990—2005年北京市水足迹及水资源利用的可持续性,在此基础上进一步分析了北京市农业用水结构的变化特征。结果表明:(1)北京市水足迹从1990年的81.5亿m3上升至2005年的168.6亿m3,人均水足迹由750.1m3... 运用水足迹的理论和方法计算评价了1990—2005年北京市水足迹及水资源利用的可持续性,在此基础上进一步分析了北京市农业用水结构的变化特征。结果表明:(1)北京市水足迹从1990年的81.5亿m3上升至2005年的168.6亿m3,人均水足迹由750.1m3上升为1096.0m3;(2)北京市水资源匮乏度不断升高,1995年以来水资源自给率呈下降趋势,与之相对应的水资源依赖度越来越高;(3)农业部门用水量在本地用水量中的比例平均每年为55.1%,虚拟水净输入量在虚拟水净输入总量中的比例平均每年达到89.1%;(4)高耗水型作物产品生产用水比例升高加大了农业用水压力,动物产品生产用水量呈增加趋势,2001—2005年动物产品生产引入的虚拟水占到其虚拟水总量的81.3%。北京市水资源利用呈不可持续状态,通过农业系统内部结构的优化调整,实现农业部门水资源的高效利用是缓解北京市水资源紧缺问题的关键。 展开更多
关键词 水足迹 虚拟水 水资源 可持续利用 农业用水结构
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区域水资源可持续利用系统评价的插值模型 被引量:50
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作者 金菊良 丁晶 +1 位作者 魏一鸣 付强 《自然资源学报》 CSSCI CSCD 北大核心 2002年第5期610-615,共6页
区域水资源可持续利用系统评价是区域可持续发展战略研究中的核心问题之一,目前提出的评价模型大多是用显式函数来表示评价指标与评价等级之间的复杂关系,其函数形式随区域水资源可持续利用系统评价内容的不同而变化,求解这些函数较复... 区域水资源可持续利用系统评价是区域可持续发展战略研究中的核心问题之一,目前提出的评价模型大多是用显式函数来表示评价指标与评价等级之间的复杂关系,其函数形式随区域水资源可持续利用系统评价内容的不同而变化,求解这些函数较复杂。为此,提出了用基于加速遗传算法的Shepard插值模型(SP模型)进行评价的新方法。实例研究的结果说明:SP模型直接由区域水资源可持续利用系统评价等级标准产生的样本数据驱动,建模方法简便而有效,在区域各种自然资源可持续利用系统评价中具有推广应用价值。 展开更多
关键词 区域水资源可持续利用系统 插值模型 系统评价 遗传算法 发展战略 SP模型 评价指标
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