期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到377篇文章
< 1 2 … 19 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Improving economic efficiency of traditional rice-fish symbiosis system for sustainable mountainous development:A case study of the world agricultural heritage in Qingtian,China 认领 引用 被引量：2
1
作者 Lifu Zheng Yuejing Rong +6 位作者 Jiawei Guo Yan Yan Yunlu Zhang Yu Zhao Xiaorong Li Ruoxin Wang Jianyun Zhang 《Ecological Frontiers》 CSCD 2025年第2期472-482,共11页
As an eco-friendly agricultural model,traditional rice-fish symbiosis system suffers from low output efficiency.Further improving the input-output efficiency of rice-fish symbiosis system is conductive to the sustaina... As an eco-friendly agricultural model,traditional rice-fish symbiosis system suffers from low output efficiency.Further improving the input-output efficiency of rice-fish symbiosis system is conductive to the sustainable mountain development.Taking rice-fish symbiosis system in Qingtian as an example,we analyzed redundant input,output deficiencies throughout the life-cycle of production and verified the improved benefits.Results showed that(1)Planting,harvesting and straw treatment had the greatest input redundancy rate,while field management and field fish breeding were most important for the economic output.Field fish output value was the key to improving the output efficiency.(2)The government and farmers can reduce the redundant inputs mentioned above and improve the outputs through measures such as selective breeding and branding of field fish,renting of farm machinery,straw feedification,scientific terrace layout and water level management.(3)After the implementation of the measures,total economic output value of rice-fish symbiosis system in Qingtian can reach 130,117.05 RMB/hm2,2.76 times and 2.08 times higher than the rice monoculture model and the traditional rice-fish model.This paper demonstrates the potential for optimizing the modern rice-fish symbiosis system,which has implications for the replication of the rice-fish symbiosis system in other mountainous regions. 展开更多
关键词 Rice-fish symbiosis system Ecosystem service values Questionnaire study Input-output efficiency analysis
暂未订购 下载PDF
Effects of Rice-Fish Co-culture on Oxygen Consumption in Intensive Aquaculture Pond 认领 引用 被引量：7
2
作者 LI Fengbo SUN Zhiping +6 位作者 QI Hangying ZHOU Xiyue XU Chunchun WU Dianxin FANG Fuping FENG Jinfei ZHANG Ning 《Rice science》 SCIE CSCD 2019年第1期50-59,共10页
Rice-fish co-culture has gained increasing attention to remediate the negative environmental impacts induced by intensive aquaculture. However, the effect of rice-fish co-culture on oxygen depletion has rarely been in... Rice-fish co-culture has gained increasing attention to remediate the negative environmental impacts induced by intensive aquaculture. However, the effect of rice-fish co-culture on oxygen depletion has rarely been investigated. We constructed a rice-fish co-culture system in yellow catfish(Pelteobagrus fulvidraco) and freshwater shrimp(Macrobrachium nipponense) ponds using a new high-stalk rice variety, and conducted a field experiment to investigate the effect of rice-fish co-culture on water parameters and oxygen consumption. The results showed that rice-fish co-culture reduced the nutrients(total nitrogen, ammonia-N, total phosphorous and potassium) and the dissolved oxygen content in fish and shrimp ponds. However, they showed similar seasonal change of dissolved oxygen in the water of fish and shrimp ponds. Rice-fish co-culture reduced the total amount of oxygen consumption and optimized the oxygen consumption structure in pond. The respiration rates in water and sediment were significantly reduced by 66.1% and 31.7% in the catfish pond, and 64.4% and 38.7% in the shrimp pond, respectively, by additional rice cultivation. Rice-fish co-culture decreased the proportions of respiration in sediment and water, and increased the proportion of fish respiration. These results suggest that rice-fish co-culture is an efficient way to reduce hypoxia in intensive culture pond. 展开更多
关键词 rice-fish co-culture oxygen depletion respiration pond aquaculture yellow catfish freshwater shrimp
暂未订购 下载PDF
Conservation of Traditional Rice Varieties in a Globally Important Agricultural Heritage System(GIAHS):Rice-Fish Co-Culture 认领 引用 被引量：23
3
作者 XIE Jian WU Xue +3 位作者 TANG Jian-jun ZHANG Jia-en LUO Shi-ming CHEN Xin 《Agricultural Sciences in China》 CSCD 2011年第5期754-761,共8页
The traditional rice-fish farming system is selected as a"globally important agricultural heritage system"(GIAHS)by the Food and Agriculture Organization(FAO),United Nations Development Programme(UNDP),and G... The traditional rice-fish farming system is selected as a"globally important agricultural heritage system"(GIAHS)by the Food and Agriculture Organization(FAO),United Nations Development Programme(UNDP),and Global Environment Facility(GEF),etc.In Zhejiang Province of China,where the pilot site for this GIAHS farming system is located,we compared the use of traditional rice varieties in rice-fish co-culture and rice monoculture.Further,we determined how traditional rice varieties were performed in this rice-fish system.Only 19%of the farmers who practiced rice monoculture planted traditional varieties while 52%of farmers who practiced rice-fish co-culture planted traditional varieties.Traditional varieties represented 13%of the total land cultivated under rice in the rice-fish system but only 2%in the rice monoculture system.In the rice-fish system,yield was lower for traditional rice varieties than hybrid varieties but application of fertilizers and pesticides was also lower.In a field experiment in the rice-fish system without pesticides,rice planthopper numbers and sheath blight incidence were lower from three traditional varieties than one hybrid variety;yields were 8 to 32%lower from the traditional varieties than the hybrid.Our results showed that traditional rice varieties can be preserved through conserving GIAHS rice-fish co-culture.Our study also indicated that traditional rice varieties can survive in the rice-fish system because these varieties are helpful to the whole system and beneficial to the farmers. 展开更多
关键词 hybrid rice varieties on-farm conservation rice monoculture traditional rice-fish farming
暂未订购 下载PDF
Methane and Nitrous Oxide Emissions from Rice-Duck and Rice-Fish Complex Ecosystems and the Evaluation of Their Economic Significance 认领 引用 被引量：15
4
作者 YUAN Wei-ling CAO Cou-gui +3 位作者 LI Cheng-fang ZHAN Ming CAI Ming-li WANG Jin-ping 《Agricultural Sciences in China》 2009年第10期1246-1255,共10页
Rice-duck(RD)and rice-fish(RF)ecological systems are major complex planting and breeding models of rice paddy fields in southern China.Studying the methane(CH4)and nitrous oxide(N2O)emissions and their economic value ... Rice-duck(RD)and rice-fish(RF)ecological systems are major complex planting and breeding models of rice paddy fields in southern China.Studying the methane(CH4)and nitrous oxide(N2O)emissions and their economic value from these two ecosystems can provide theoretical and practical basis for further development and utilization of these classical agricultural techniques.CH4 and N2O emissions from RD and RF ecological systems were measured in situ by using static chambers technique.Using global warming potentials(GWPs),we assessed the greenhouse effect of CH4 and N2O and their economic value.Results showed that the peaks of CH4 emission fluxes from RD and RF appeared at full tillering stage and at heading stage,and the average emission fluxes were significantly(P〈0.05)lower than that from CK.N2O fluxes remained low when the field is flooded and high after draining the water.Compared with CK,the total amount of N2O emissions was significantly(P〈0.05)higher and slightly lower than those from RD and RF,respectively.In 2006 and 2007,the total greenhouse effect of CH4 and N20 from RD and RF were 4728.3 and 4611 kg CO2 ha^-1,4545 and 4754.3 kg CO2 ha^-1,respectively.The costs of greenhouse effect were 970.89 and 946.81 RMB yuan ha^-1,and 933.25 and 976.23 RMB yuan ha^-1,respectively,which were significant lower than those from CK(5997.6 and 5391.5 RMB yuan ha^-1).Except for the environment cost of CH4 and N2O,the economic benefits from RD and RF were 2210.64 and 4881.92 RMB yuan ha^-1;3798.37 and 5310.64 RMB yuan ha^-1,respectively,higher than those from CK.Therefore,RD and RF complex ecological planting and breeding models can effectively decrease and control CH4 and N2O emissions,and they are two of the effective strategies to reduce greenhouse gases from rice paddy fields and contribute in alleviating global warming.Thus,their adoption is important to the environment together with their economy benefits. 展开更多
关键词 methane emission nitrous oxide emission rice-duck complex ecosystem rice-fish complex ecosystem,greenhouse effect economic benefit
暂未订购 下载PDF
Characteristics of Growth and Yield Formation of Rice in Rice-Fish Farming System 认领 引用 被引量：7
5
作者 YANG Yong ZHANG Hong-cheng +2 位作者 HU Xiao-jun DAI Qi-gen ZHANG Yong-jiang 《Agricultural Sciences in China》 2006年第2期103-110,共8页
By using single rice cultivation as a control, the effect of rice-fish culture on growth dynamic, plant type and yield formation of rice was studied. The results showed as follows： rice-fish culture improved the phys... By using single rice cultivation as a control, the effect of rice-fish culture on growth dynamic, plant type and yield formation of rice was studied. The results showed as follows： rice-fish culture improved the physical-chemical properties of arable layer soil of paddy field, extended growth period of rice, increased dry matter and LAI of different growth stages, improved three top leaves area, deterred the degeneration of leaves function, increased the diameter of stem, promoted the growth of roots and the formation of roots in the extended stem. At the same time, rice-fish culture extended the length of basal internodes, increased the number of internodes, uplifted the gravity of plant, and depressed the root vigor. For the grain yield and yield structure office, rice-fish culture decreased earillering ratio, spikelet/panicle and seed set percentage, increased grain weight. If variety choice and cultivation technology were controlled appropriately, rice-fish culture could increase the effective panicles and improve grain yield of rice. 展开更多
关键词 rice-fish culture rice characteristics of growth yield formation
暂未订购 下载PDF
Ecological footprint analysis on the traditional rice-fish agricultural area:a case study of Qingtian County,Zhejiang Province,China 认领 引用
6
作者 Jiao Wenjun Min Qingwen +2 位作者 Cheng Shengkui Zhang Dan Sun Yehong 《Ecological Economy》 2009年第4期365-374,共10页
Qingtian County of Zhejiang Province, China has maintained the traditional rice-fish agriculture for about 2,000 years and formed exceptional cultural heritage based on this kind of production mode, so it was ed by FA... Qingtian County of Zhejiang Province, China has maintained the traditional rice-fish agriculture for about 2,000 years and formed exceptional cultural heritage based on this kind of production mode, so it was ed by FAO as a pilot site for the rice-fish agricultural heritage systems in 2005. This research has applied the indicators of ecological footprint and biocapacity to monitor the environmental conditions of Qingtian County, aiming to find the impact that the traditional agricultural production mode and the local inhabitants lifestyle have placed on the local environmental conditions as well as the role they have played in maintaining ecological balance, cultural inheritance and regional sustainable development. Results show that Qingtian County is characterized by a nearly breakeven total ecological balance, as opposed to Zhejiang Province, the world and other agricultural regions. However, compared with another rice-fish agricultural region, Congjiang County which enjoys a considerable ecological reserve, Qingtian County has consumed a greater amount of environmental resources. Specifically, about half of the ecological footprint of Qingtian County can be attributed to the cropland （50.8%） while the CO2 area only accounts for 11.2%, which is dramatically different from that of the modern industrialized regions. And a vast of percentage of energy is caused by the combustion of fuelwood which not only requires the land to absorb the CO2 emission it has generated but also occupies the forest where it has been chopped. 展开更多
关键词 Ecological footprint Ecological balance Traditional agriculture Globally Important Agricultural Heritage Systems （GIAHS） Rice-fish systems
暂未订购 下载PDF
Effect of rice cultivar on greenhouse-gas emissions from rice-fish co-culture 认领 引用 被引量：4
7
作者 Kexin Xie Mengjie Wang +4 位作者 Xiaodan Wang Fengbo Li Chunchun Xu Jinfei Feng Fuping Fang 《The Crop Journal》 SCIE CSCD 2024年第3期888-896,共9页
In aquaculture,co-culturing rice with fish may mitigate greenhouse-gas emissions.In this study,co-culture of four rice cultivars in a laboratory-scale rice–fish system reduced CH4and N2O emissions relative to f... In aquaculture,co-culturing rice with fish may mitigate greenhouse-gas emissions.In this study,co-culture of four rice cultivars in a laboratory-scale rice–fish system reduced CH4and N2O emissions relative to fish monoculture.Differences in CH4and N2O emissions among rice cultivars primarily stem from the differential effects of rice plants on plant-mediated CH4transport,CH4oxidation and nitrogen absorption. 展开更多
关键词 Greenhouse gas emissions Aquaculture Rice-fish system Rice cultivar
暂未订购 下载PDF
Logistic Regression Analysis on Factors Affecting Adoption of Rice-Fish Farming in North Iran 认领 引用 被引量：1
8
作者 Seyyed Ali NOORHOSSEINI-NIYAKI Mohammad Sadegh ALLAHYARI 《Rice science》 2012年第2期153-160,共8页
We evaluated the factors influencing the adoption of rice-fish farming in the Tavalesh region near the Caspian Sea in northern Iran. We conducted a survey with open-ended questions. Data were collected from 184 respon... We evaluated the factors influencing the adoption of rice-fish farming in the Tavalesh region near the Caspian Sea in northern Iran. We conducted a survey with open-ended questions. Data were collected from 184 respondents （61 adopters and 123 non-adopters） randomly sampled from selected villages and analyzed using logistic regression and multi- response analysis. Family size, number of contacts with an extension agent, participation in extension-education activities, membership in social institutions and the presence of farm workers were the most important socio-economic factors for the adoption of rice-fish farming system. In addition, economic problems were the most common issue reported by adopters. Other issues such as lack of access to appropriate fish food, losses of fish, lack of access to high quality fish fingerlings and dehydration and poor water quality were also important to a number of farmers. 展开更多
关键词 adoption rice-fish farming logistic regression
暂未订购 下载PDF
现代集约化农业如何利用物种多样性——源自对重要农业文化遗产“稻鱼共生系统”研究的思考 认领 引用 被引量：1
9
作者 陈欣 叶俊龙 唐建军 《中国生态农业学报（中英文）》 CAS CSCD 北大核心 2026年第1期1-5,共5页
物种共存是自然界生物生存的基本范式。在漫长的农业发展过程中,人类利用不同物种共存的智慧,建立了物种多样化利用的农业系统,如作物间套作系统、稻鱼共生系统、农林复合系统等。利用稻田浅水环境养殖鲤科(Cyprinidae)鱼类而形成的稻... 物种共存是自然界生物生存的基本范式。在漫长的农业发展过程中,人类利用不同物种共存的智慧,建立了物种多样化利用的农业系统,如作物间套作系统、稻鱼共生系统、农林复合系统等。利用稻田浅水环境养殖鲤科(Cyprinidae)鱼类而形成的稻鱼共生系统,广泛分布在我国南方稻作区,历史悠久,被联合国粮食及农业组织(FAO)或中国农业农村部列为全球或中国重要农业文化遗产系统。本文首先简要论述了稻鱼共生系统的生态学效应、机理及维持共生效应的关键环节;进而探讨在现代农业背景下,如何设计和管理基于物种共存效应的现代生态集约化农业系统。一方面,从两个物种表型(功能性状)互补性(functional trait compatibility)的角度,筛选和培育适用于物种共存并产生“合作效应”的作物品种和水产动物类群,在此基础上建立物种共存适配人工智能大模型,为物种多样性利用优化提供依据;另一方面,与现代科学技术结合,建立基于人工智能的多物种协同种养关键技术。 展开更多
关键词 物种共存 稻鱼共生 种间互惠效应 功能性状适配 人工智能
暂未订购 下载PDF
Ecological Benefit Evaluation of Agricultural Heritage System Conservation——A Case Study of the Qingtian Rice-Fish Culture System 认领 引用 被引量：14
10
作者 WANG Bin SUN Yehong JIAO Wenjun 《Journal of Resources and Ecology》 CSCD 2021年第4期489-497,共9页
In order to better understand the developmental conditions and trends of the biodiversity at agricultural heritage sites,the structure and function of the ecosystem and ecological environment in Qingtian Rice-Fish Cul... In order to better understand the developmental conditions and trends of the biodiversity at agricultural heritage sites,the structure and function of the ecosystem and ecological environment in Qingtian Rice-Fish Culture System is examined in the decade since the implementation of the GIAHS project.Through the collection of historical data and sample-plot survey,this study collates the data from 2005 to 2013 related to the heritage site to evaluate the ecological benefit of the Agricultural Heritage System conservation.The results show that:(1)Since the implementation of heritage conservation,the variety of traditional rice grown at the heritage sites basically remains stable,the varieties of other crops basically remain unchanged and the varieties of fruit trees and medicinal plants have developed at faster rates.As the ecological environment at the heritage sites gradually improved,the species and richness of the biodiversity in the ecosystem have increased,especially the increasing growth of egrets and boars.(2)From 2005 to 2013 in the Fangshan Town of Qingtian County,the ecosystem areas identified as river,forest,urban and bare land have increased.The increased area of the urban ecosystem is the largest one of them,which is up to 20.30 ha;while the area of the forest ecosystem has increased to 7.29 ha.The areas of wetland,reservoir,farmland and grassland have been reduced,and the area of grassland ecosystem has been reduced the most with a reduction of 28.87 ha.From the changes in the values of the ecosystem services of different ecosystem types,the values of forest ecosystem services have achieved the most growth,reaching up to 92000 yuan yr-1 and the growth of the river and bare land ecosystem service values are not obvious.(3)Over nearly a decade,the soil nutrients and the water quality of rice fields at the heritage site have not obviously changed and the plant diseases and insect pests in the rice fields have not been aggravated.The monitoring indexes are far better than the standard values.With the great support of the local government,the production and living conditions and the living environments of farmers in the villages of the heritage sites have been greatly improved through road reconstruction,water improvement,toilet enhancements and the greening,brightness and beautification of the villages. 展开更多
关键词 Agricultural Heritage System Conservation ecological benefit Qingtian Rice-Fish Culture System evaluation Globally Important Agricultural Heritage Systems(GIAHS)
暂未订购 下载PDF
投饵对稻渔综合种养环境微生物及2种鲤肠道微环境与消化功能的影响 认领 引用
11
作者 廖梦香 薛凌展 +6 位作者 杨晓燕 陈度煌 朱文彬 曾高雄 张树兴 樊海平 董在杰 《南方农业学报》 CAS CSCD 北大核心 2026年第4期1232-1245,共14页
【目的】探究不同稻渔综合种养模式对2种鲤肠道微环境与消化功能的影响,为完善红福瑞鲤2号新品系选育工作提供参考依据。【方法】以福瑞鲤2号和红福瑞鲤2号为试验对象,设置不投饵福瑞鲤2号(B-F)、不投饵红福瑞鲤2号(B-R)、投饵福瑞鲤2号... 【目的】探究不同稻渔综合种养模式对2种鲤肠道微环境与消化功能的影响,为完善红福瑞鲤2号新品系选育工作提供参考依据。【方法】以福瑞鲤2号和红福瑞鲤2号为试验对象,设置不投饵福瑞鲤2号(B-F)、不投饵红福瑞鲤2号(B-R)、投饵福瑞鲤2号(T-F)和投饵红福瑞鲤2号(T-R)4个处理组,进行49 d养殖对比试验,采用16S rRNA测序分析水样品、土壤样品及肠道内容物样品微生物群落结构,并结合肠道组织切片与消化酶活性检测进行综合评价。【结果】T-R组终末体质量和终末体长均显著高于B-F组(P水样品>肠道内容物样品。土壤样品与水样品的相似性较高,二者先聚为一支,再与肠道内容物样品聚为一支。变形菌门在4组样品的土壤样品、水样品和肠道内容物样品中均保持较高的相对丰度,T-R组相对丰度最高的是鲸杆菌属,其次为多核杆菌属、气单胞菌属、未分类菌属和红育菌属。T-R组肠道绒毛高度最高,B-R和T-R组肠绒毛高度均一且排列整齐,而B-F和T-F组肠绒毛高度则存在明显差异,T-F和T-R组肠道杯状细胞数量分别多于B-F和B-R组。2种鲤在投饵组的淀粉酶活性均低于不投饵组,脂肪酶活性均显著高于不投饵组,胰蛋白酶活性均高于不投饵组。【结论】不同稻渔综合种养模式下鱼类肠道优势菌群的定殖主要受宿主遗传背景影响,投饵仅起修饰作用。肠道有益菌群多样性、组织结构完整性与消化功能呈正向协同,构成了评价鱼类环境适应性的内在机制。红福瑞鲤2号在此协同体系中表现出稳定的种质优势,已形成对稻田养殖的适应性特征。 展开更多
关键词 稻渔综合种养 福瑞鲤2号 红福瑞鲤2号 肠道菌群 肠道组织结构 肠道消化酶活性
暂未订购 下载PDF
模拟稻渔共作深水栽培条件下增苗减氮对水稻产量及茎秆抗倒伏性能的影响 认领 引用
12
作者 钟蕾 付晓全 +3 位作者 李海滨 彭小松 欧阳林娟 陈小荣 《生物灾害科学》 2026年第1期1-8,共8页
【目的】明确深水栽培下增苗减氮对水稻生长及产量形成的影响,以期实现稻渔双丰收。【方法】选取常规稻和杂交稻共4个水稻品种,模拟稻渔共作环境,试验过程中保持高水位,设置:CK,氮肥按照基肥꞉分蘖肥꞉穗粒肥=5꞉3꞉2的比例施用,每穴1株基本... 【目的】明确深水栽培下增苗减氮对水稻生长及产量形成的影响,以期实现稻渔双丰收。【方法】选取常规稻和杂交稻共4个水稻品种,模拟稻渔共作环境,试验过程中保持高水位,设置:CK,氮肥按照基肥꞉分蘖肥꞉穗粒肥=5꞉3꞉2的比例施用,每穴1株基本苗;3个增苗减氮处理,氮肥只施用基肥,T1、T2、T3分别为每穴2、3、5株基本苗;考查水稻产量及其构成,SPAD值、节间长度等。【结果】增苗减氮模式下,随着每穴基本苗的增加,单株有效穗数明显提高,同时每穗粒数、结实率与千粒重出现不同程度下降,每穴5株基本苗,只施用基肥模式下(T3),泰优871与华香马蒂每穴有效穗数较CK分别增加168.4%与169.9%,但华香马蒂每穗粒数减少比例大,达24.7%;由于增苗减氮模式下单株有效穗数的大幅增加,各品种产量较大幅度提高,在T2、T3处理下,泰优871单穴产量分别增加了59.7%、91.7%,华香马蒂单穴产量分别增加了35.9%、75.9%;其次,增苗减氮模式下,穗长与二次枝梗数明显减少,其中泰优871穗长减少10.0%,二次枝梗减少15.0%,然而,增苗减氮未引起剑叶SPAD值产生显著变化;此外,随着单穴苗数的增加,稻株倒3、倒4节间长度将不同程度增加,一定程度上降低了植株茎秆抗倒伏力。【结论】深水栽培下适当增苗减氮对水稻产量形成有一定的积极效果,值得深入研究。 展开更多
关键词 深水栽培 稻渔共作 增苗减氮 产量 抗倒伏性能
暂未订购 下载PDF
稻渔共作模式中鲤最佳投放密度试验 认领 引用
13
作者 张宏三 文宇 +5 位作者 白洪清 王兴林 宋云 向顺富 彭英海 周先文 《河北渔业》 2026年第7期24-26,共3页
为探究“珞优2号+湘西呆鲤(Cyprinus carp var.Xiang xi)”稻渔综合种养模式的效果及其最佳苗种投放密度,在每667 m2稻田中投放规格为100 g的湘西呆鲤苗种,设置150尾、200尾和300尾三个密度组,并以水稻单作为对照组进行试验。结果显... 为探究“珞优2号+湘西呆鲤(Cyprinus carp var.Xiang xi)”稻渔综合种养模式的效果及其最佳苗种投放密度,在每667 m2稻田中投放规格为100 g的湘西呆鲤苗种,设置150尾、200尾和300尾三个密度组,并以水稻单作为对照组进行试验。结果显示:稻渔综合模式下水稻产量均高于水稻单作;每667 m2投放200尾时,综合经济效益最高;每667 m2投放300尾时,湘西呆鲤产量最高,经济效益次之。结论表明:珞优2号适宜作为湘西山区稻渔综合种养的水稻品种,“珞优2号+湘西呆鲤”模式的最佳苗种投放密度为每667 m2投放200~300尾。 展开更多
关键词 稻渔共作 最佳投放密度 试验
暂未订购 下载PDF
Conceptual Framework for Economic Evaluation of Globally Important Agricultural Heritage Systems (GIAHS): Case of Rice-Fish Co-Culture in China 认领 引用 被引量：6
14
作者 Sonja BERWECK Parviz KOOHAFKAN +4 位作者 Mary Jane Ramos de la CRUZ 闵庆文 焦雯珺 孙业红 刘某承 《Journal of Resources and Ecology》 EI CSCD 2013年第3期202-211,共10页
The Globally Important Agricultural Heritage Systems （GIAHS） initiative was launched by the Food and Agriculture Organization （FAO） of the United Nations in 2002 with the aim of establishing the basis for the glob... The Globally Important Agricultural Heritage Systems （GIAHS） initiative was launched by the Food and Agriculture Organization （FAO） of the United Nations in 2002 with the aim of establishing the basis for the global recognition,dynamic conservation and adaptive management of outstanding traditional agricultural systems and their associated landscapes,biodiversity,knowledge systems and cultures.There is anecdotal evidence that designated GIAHS are economically better than non-GIAHS sites.However,there have not been done an economic analysis to prove this.Nor are any sophisticated economic performance criteria for GIAHS in place for a continuously monitoring of the functioning.Therefore,the main objective of this study is to conduct an economic valuation for a GIAHS system versus a similar non designated GIAHS system.For this,a Cost-Benefit Analysis （CBA） is chosen.The major constraint is the data availability.Therefore,a framework for economic analysis shall be developed with the intention to provide directions,assumptions,and data requirement to carry out an economic analysis and so give guidance on future inclusion of economic valuations of GIAHS.Theconceptual framework for economic assessment will use the Rice-Fish pilot site in China as a case study.The example calculations on the rice-fish co-culture （RFC） have to be taken cautiously due to data availability on different activities （tourism,marketed products on local and international markets） as well as comparison to similar systems. 展开更多
关键词 phenology Globally Important Agricultural Heritage Systems （GIAHS） Cost-Benefit Analysis （CBA） conceptual framework economic assessment Rice-Fish Co-Culture （RFC） China
暂未订购 下载PDF
探索高质量共建“一带一路”“小而美”民生项目机制创新路径——以中国—柬埔寨共建“鱼米走廊”为例 认领 引用
15
作者 芦千文 《亚太经济》 CSSCI 北大核心 2026年第3期132-148,共17页
健全高质量共建“一带一路”机制,亟须把中国式现代化经验嵌入“小而美”民生项目,探索稳定且富有韧性的新型国际合作范式。中柬共建“鱼米走廊”是“小而美”民生项目的区域性、集成化布局,为创新“小而美”民生项目实施机制提供了探... 健全高质量共建“一带一路”机制,亟须把中国式现代化经验嵌入“小而美”民生项目,探索稳定且富有韧性的新型国际合作范式。中柬共建“鱼米走廊”是“小而美”民生项目的区域性、集成化布局,为创新“小而美”民生项目实施机制提供了探索场景。基于对“小而美”民生项目机制创新方向和共建“鱼米走廊”机制建设成效及不足的分析,提出推动共建“鱼米走廊”机制创新的目标任务,主要包括:创建中国对外合作机制创新示范区,集成应用中国促进小农户衔接现代农业经验,建立对外合作和援助的专业服务支撑体系,探索产业链衔接互嵌和发展深度融合的跨国“飞地经济”新模式,讲好对外合作和援助的中国故事。在具体的实施路径上,高质量共建“鱼米走廊”要以“小而美”民生项目“串链结网”规划布局为方向,坚持创造性转化、根植性推广中国农业农村现代化经验,聚焦优势特色农业产业,开拓深化发展融合路径,努力把“鱼米走廊”建成柬埔寨农业农村现代化示范区,在国际合作中提升中国方案的影响力、引领力和凝聚力。 展开更多
关键词 高质量共建“一带一路” “小而美”民生项目 中柬共建“鱼米走廊” 中国式现代化
暂未订购 下载PDF
湖南稻鱼综合种养基地土壤-水体稀土元素来源及环境意义 认领 引用
16
作者 马思玲 彭渤 +4 位作者 邬思成 吴能球 贺佳佳 王欣 戴亚南 《环境化学》 CAS CSCD 北大核心 2026年第2期701-715,共15页
利用ICP-MS,对湖南玉屏(YP)、荷叶(HY)、靖港(JG)3个典型稻鱼综合种养基地土壤-水体进行系统的稀土元素(REE)分析,在认识土壤、水体稀土元素富集特征的基础上,探讨人为活动对稻鱼基地土壤、水体环境的影响.结果表明,YP、HY、JG三基地土... 利用ICP-MS,对湖南玉屏(YP)、荷叶(HY)、靖港(JG)3个典型稻鱼综合种养基地土壤-水体进行系统的稀土元素(REE)分析,在认识土壤、水体稀土元素富集特征的基础上,探讨人为活动对稻鱼基地土壤、水体环境的影响.结果表明,YP、HY、JG三基地土壤稀土总量(ΣREE)平均分别为293.74、339.93、272.98μg·g-1.相比湖南土壤背景值,HY土壤稀土元素达轻度富集程度(1<EF<3),而JG土壤的稀土富集不明显(EF<1.5);相比三基地土壤成土母岩,三基地土壤稀土元素均无明显富集(EF<1.5).地累计指数(Igeo<1.5)和次生相与原生相稀土含量比值(RSP<1)等特征显示,土壤稀土元素为非外源输入.此外,YP和HY基地稻田水溶解态稀土总量(ΣREE)分别在2.454—6.789μg·L-1和0.34—3.31μg·L-1之间.稀土元素北美页岩(NASC)标准化显示,稻鱼土壤均为轻稀土(LREE)相对富集的稀土配分模式,而YP水体为中稀土(MREE)相对富集的稀土配分模式,HY水体则表现为Eu明显异常的平坦型配分模式.土壤稀土元素赋存形态、稀土元素与主量元素的相关关系显示,土壤稀土元素来自相应的土壤成土母岩.此外,稀土元素从土壤到水体的转移系数较均一,体现YP和HY水体稀土元素具有整体特征.稀土元素特征比值三相图和配分模式显示,水体溶解态稀土元素来自土壤可交换态和碳酸盐结合态.因此,三稻鱼基地土壤-水体环境受到人为活动干扰较少,不易出现稀土元素的富集与污染,适合优质稻鱼生产. 展开更多
关键词 稻鱼基地 土壤-水体 稀土元素(REEs) 环境意义 湖南
暂未订购 下载PDF
三种稻渔生态种养对稻田土壤化学性质和酶活性的影响 认领 引用
17
作者 林小钢 孟文旭 +3 位作者 陈卓 李芹 郑永华 唐洪玉 《家畜生态学报》 北大核心 2026年第4期101-109,共9页
稻渔生态种养是中国“十四五全国渔业发展规划”鼓励发展的一种绿色生态的养殖模式,为探究不同时期不同生态种养模式稻田土壤理化性质和酶活性的变化特征,丰富稻渔生态种养的基础理论,该研究在检测水稻不同生长期12种与土壤肥力和健康... 稻渔生态种养是中国“十四五全国渔业发展规划”鼓励发展的一种绿色生态的养殖模式,为探究不同时期不同生态种养模式稻田土壤理化性质和酶活性的变化特征,丰富稻渔生态种养的基础理论,该研究在检测水稻不同生长期12种与土壤肥力和健康状况相关指标的基础上,分析评价重庆地区3种稻田生态种养对稻田土壤肥力的影响。结果显示:3种稻田生态种养模式在水稻不同生长期土壤pH显著高于对照组(P<0.05),但土壤有机质、全氮、碱解氮、速效钾等营养元素以及土壤碱性磷酸酶活性在大部分时期均显著低于对照组(P<0.05)。进一步分析显示,3种稻田生态种养存在土壤肥力和养分等级下降的问题,其中稻鳖鸭组土壤肥力和养分等级下降最为严重,其次是稻鳖组,稻虾组相对较好。说明养殖动物密度低投喂量少的稻田生态种养存在不同程度的土壤肥力下降趋势,建议适当提高动物养殖密度和投饵量,并根据水稻不同生长期对营养成分的需要,适当补充有机肥,有利于稻田水肥平衡。 展开更多
关键词 稻渔生态种养殖模式 稻田 土壤化学性质 酶活性
暂未订购 下载PDF
基于Ecopath的黔东南稻—渔共养生态系统结构与功能研究 认领 引用
18
作者 龙炳均 梁龙 张凤玲 《现代农业研究》 2026年第3期87-94,共8页
为量化评估稻渔共养模式对生态系统结构与能量流动特征的影响。本研究于2025年在贵州省黔东南州台江县施洞镇贵州财经大学科技小院内开展试验,设置稻渔共养区与水稻单作区(对照区),采用Ecopath with Ecosim(EWE)软件构建生态通道模型,... 为量化评估稻渔共养模式对生态系统结构与能量流动特征的影响。本研究于2025年在贵州省黔东南州台江县施洞镇贵州财经大学科技小院内开展试验,设置稻渔共养区与水稻单作区(对照区),采用Ecopath with Ecosim(EWE)软件构建生态通道模型,对比分析两系统营养结构、食物网特征与能量流动效率。结果表明稻渔共养系统最高营养级为3.09,低于对照区(3.90);系统食物网由牧食链与腐食链构成,共包含19个功能组,较对照区增加草鱼、鲤鱼、鲢、鳙等鱼类功能组,食物网复杂度提高。稻渔共养系统各营养级间能量转换效率显著高于对照区(Ⅱ~Ⅳ营养级转换效率分别为12.28%、7.11%、6.91%vs 10.17%、6.38%、2.78%),总能量转换效率达2.8%,高于对照区(1.9%)。系统连接指数为0.21,高于对照区(0.17),杂食性指数提高至0.27。Finn's循环指数高于对照区(0.27vs0.21),平均路径长度则低于对照区(3.43vs4.23)。总体表明,稻渔共养系统具有更高的能量利用效率与结构复杂度,但仍处于发育阶段,需进一步优化鱼类种群结构以提升系统稳定性。本研究为稻渔共养模式的生态效益评估与可持续生产提供了理论依据。 展开更多
关键词 稻渔共养 Ecopath with Ecosim 营养结构 能量流 生态农业 科技小院
暂未订购 下载PDF
Valuation of ecosystem service of rice-fish coculture in Maubin District,Myanmar 认领 引用
19
作者 Arkar Myo Oluwafemi Ajayi +2 位作者 Fei Huang Yongxu Cheng Jiayao Li 《Anthropocene Coasts》 2024年第1期281-295,共15页
In Myanmar,the advancement of the integrated rice-fish farming system legs behind rice monoculture farming,and there exists limited awareness of its advantages.Ecosystem services(ES)valuation plays a crucial role in i... In Myanmar,the advancement of the integrated rice-fish farming system legs behind rice monoculture farming,and there exists limited awareness of its advantages.Ecosystem services(ES)valuation plays a crucial role in integrated environmental decision-making,promoting sustainable agriculture practices,facilitating land-use planning,and ensuring food security in rural areas.Assessing the ES value in Delta region of Myanmar where rice-fish coculture is extensively practiced is essential for understanding the level of ES benefits derived from this farming system.The objective of this study is to promote the development of the rice-fish coculture system in delta region by estimating its ES value.We conducted a comprehensive examination of the Direct,Indirect,Option and Existence ES value of the rice-fish and rice monoculture in Maubin District,an area where rice-fish development research is being actively carried out within the delta region.The results revealed that the ES value of rice-fish coculture ecosystems in the study area was amounted to 28,588 US$/hm2/year.This value was 2.82%higher than rice monoculture system.Additionally,the rice-fish coculture system yielded product provisional values averaging 1,275 US$/hm2/year,representing a significant increase of 40.3%compared to rice monoculture farming.Our study shows that the adoption of rice-fish coculture farming system not only improves the ES value of the delta region,but also supports food security and socio-economic well-being.Furthermore,it provides valuable insights for policymakers on effective management policies for future development of the rice-fish coculture ecosystem. 展开更多
关键词 Ecosystem service(ES)value Rice-fish coculture Rice monoculture Maubin District Delta Region
稻渔综合种养高质量发展的“桐乡模式”分析 认领 引用
20
作者 胡晓波 陆静 +4 位作者 范仉洪 杨继锋 黄福勇 唐金玉 孙伟杰 《浙江农业科学》 2026年第8期2076-2079,共4页
为总结稻渔综合种养高质量发展的“桐乡模式”创建经验并评估其综合效益,本研究基于桐乡市2018—2025年的产业实践,通过政策分析、田间试验和成本收益核算,系统解析“政府-技术-服务”三端协同机制,重点评估稻-小龙虾、稻-罗氏沼虾等5... 为总结稻渔综合种养高质量发展的“桐乡模式”创建经验并评估其综合效益,本研究基于桐乡市2018—2025年的产业实践,通过政策分析、田间试验和成本收益核算,系统解析“政府-技术-服务”三端协同机制,重点评估稻-小龙虾、稻-罗氏沼虾等5类模式的推广成效。结果表明:机制创新上,桐乡市构建了政策引导、技术支撑、服务保障的三端协同体系;技术路径上,形成了以稻-小龙虾为主导的多元模式,2023年,稻-小龙虾共生模式的经济效益为52323元·hm-2,轮作模式的经济效益为17541元·hm-2,稻-罗氏沼虾、稻-鳖、稻-蛙、早稻-青虾模式的经济效益分别为46350、114225、185250和50400元·hm-2;全市稻渔综合种养面积为2219.72 hm2,实现了“稳粮增收”、肥药双减和经济增效。综上,“桐乡模式”通过机制创新驱动技术优化,显著提升了产业质量效益,为南方稻区产业升级提供了可复制路径。 展开更多
关键词 桐乡模式 稻渔综合种养 机制创新 成效评估
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 19 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈