Integrated Rice–Fish Agroecosystems in China

2016 ◽  
pp. 83-110
Author(s):  
Chen Xin
Keyword(s):  
Rice Fish

Edge effect of trench-pond pattern on rice grain and economic benefit in rice-fish co-culture

2010 ◽  
Vol 18 (5) ◽  
pp. 995-999 ◽  
Author(s):  
Xue WU ◽  
Jian XIE ◽  
Xin CHEN ◽  
Jian CHEN ◽  
Xing-Xing YANG ◽  
...  
Keyword(s):  
Edge Effect ◽  
Economic Benefit ◽  
Rice Grain ◽  
Rice Fish

PRODUK DOMESTIK REGIONAL BRUTO PER KAPITA DAN PEMBANGUNAN EKONOMI YANG INKLUSIF DAN BERKEADILAN DI KABUPATEN TOBA SAMOSIR

2015 ◽  
pp. 28-46
Author(s):  
Henrykus Sihaloho
Keyword(s):  
Economic Growth ◽  
Soybean Meal ◽  
Domestic Product ◽  
Market Prices ◽  
Job Opportunities ◽  
Per Capita ◽  
The Government ◽  
Rice Fish

Abstract The goals of this research were to acquire overview of Regional Domestic Product (GRDP) per capita and to design inclusive and righteous economic growth (growth with equity). Toba Samosir Regency’s Gross Regional Domestic Product (GRDP) per capita at Current Market Prices 2000 in 2013 was increasing every year, meanwhile GRDP per capita in 2009-2013 at Constant Market Prices 2000 showed the economic growth increased significantly in Toba Samosir Regency and North Sumatera Province. In order to actualize inclusive and righteous economic growth in Toba Samosir Regency, the government of this regency will have to introduce mina-rice (fish-paddy) programme. Introducing thia programme with labor intensive will be potential to increase income and to provide job opportunities labor occasion as well as ti decrease overloaded fish nurture. The government of Toba Samosir Regency should invite investors to build some feed industries of corn-soybean meal.

Wastewater-fed aquaculture systems in Ho Chi Minh city, Vietnam: status and trends.

2020 ◽  
Author(s):  
Pham Viet Huy Huynh
Keyword(s):  
Economic Development ◽  
Inner City ◽  
Seed Production ◽  
Ho Chi Minh City ◽  
Nutrient Source ◽  
Water Spinach ◽  
Status And Trends ◽  
Rice Fish ◽  
The City

Abstract There are currently eight types of wastewater-fed aquaculture (WFA) systems in Ho Chi Minh City: seed production, fish-livestock, fish-water mimosa, fish-lotus, rice-fish, fish-only, water spinach, and fish-water spinach. Some utilize wastewater efficiently as a nutrient source, while some others have to control carefully the intake of wastewater. WFA has attracted farmers on their own initiative. Although it provides a living for a significant number of urban farmers and plays important roles in farmers' livelihoods, it is now under threat from the process of economic development of the city. The impacts of urbanization on former WFA sites in inner city zone of district 6 and district 8 where it is disappearing rapidly indicate what is likely to happen to current WFA sites in the city. Urbanization has also created livelihood uncertainties for farmers. The attraction of high prices of land and the impacts of urbanization projects are the main constraints, resulting in the decline in WFA areas. Pollution from uncontrolled and dispersed industrialization is another threat for WFA.

scholarly journals Potentiality of Periphyton-based Aquaculture Technology in Rice-fish Environment

2009 ◽  
Vol 1 (3) ◽  
pp. 624-634 ◽  
Author(s):  
S. K. Saikia ◽  
D. N. Das
Keyword(s):  
Common Carp ◽  
Stocking Density ◽  
Fish Culture ◽  
Arunachal Pradesh ◽  
Gut Content ◽  
Common Carp Cyprinus Carpio ◽  
Feed Source ◽  
Rice Fish ◽  
Supplementary Feed

Periphyton is being used traditionally as rich aquatic feed for fishes throughout the countries like Cambodia, West Africa, Srilanka, India and Bangladesh. In waterlogged rice environment, it can be judiciously utilized as feed source introducing periphytophagous fish. Studies supported rice straw as suitable substrate for periphyton growth. The study of gut content of Common carp (Cyprinus carpio L.) from a periphyton-based rice-fish culture system in Apatani Plateau of Arunachal Pradesh, India showed maximum of 60 genera of microflora and fauna with periphytic in nature. The farmers from this rice-fish culture practice are gaining an average fish production of 500kg ha-1 180 day-1 without employing any supplementary feed. Better selection and determination of appropriate stocking density of periphytophagous fish in waterlogged rice-fields might extend the rice-fish culture towards a sustainable and self-substrating periphyton based aquaculture (SSPBA) practice. Keywords: Periphyton; Sustainable agriculture; Rice-fish; Self-substrating; Common carp; Apatani plateau. © 2009 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v1i3.2114              J. Sci. Res. 1 (3), 624-634 (2009) 

scholarly journals Impact of rice-fish/shrimp co-culture on the N2O emission and NH3 volatilization in intensive aquaculture ponds

2019 ◽  
Vol 655 ◽  
pp. 284-291 ◽  
Author(s):  
Fengbo Li ◽  
Jinfei Feng ◽  
Xiyue Zhou ◽  
Chunchun Xu ◽  
M. Haissam Jijakli ◽  
...  
Keyword(s):  
N2o Emission ◽  
Nh3 Volatilization ◽  
Aquaculture Ponds ◽  
Rice Fish ◽  
Intensive Aquaculture

Ecology of terrace wet rice-fish environment and role of periphyton

2011 ◽  
Vol 4 ◽  
pp. 102-111 ◽  
Author(s):  
Surjya Kumar Saikia ◽  
Debangshu Narayan Das
Keyword(s):  
Rice Fields ◽  
The North ◽  
North Eastern ◽  
Increasing Trend ◽  
The Rich ◽  
Carbon Dioxide Co2 ◽  
Rice Fish ◽  
Water Canals ◽  
Key Words Rice

The waterlogged terrace wet rice-fields of Apatani Plateau located at an altitude of 1500msl in Arunachal Pradesh of the north eastern India are stocked with fish Common carp (Cyprinus carpio L) for several decades. The fishes are not fed with supplementary feeds because of the rich organic nature of the rice-fields. The study on water and soil of these fields revealed a strong co-relation to such organic nature. The wet rice-fish integrated fields exhibited the characters of shallow wet ecosystems. The water canals traversed through the rice fields were found inundated with water up to 50m showing the nature of Deep Water Rice fields (DWR) at least for one month. Significant (p<0.001) variations of water were observed for dissolved oxygen (DO) and carbon dioxide (CO2) to diurnal and seasonal changes. Alkalinity of the fields intends to play a role towards its productivity which is otherwise played by DO in other aquatic systems. Soil nitrogen reflected a gradual increasing trend of organic nature. Role of periphyton may not be ignored to the high phosphorus level of the soil at later flood phases in these fields. Key words: Rice-fish; aquatic ecosystem; organic practice; plankton; periphyton DOI: 10.3126/jowe.v4i0.2585Journal of Wetlands Ecology, (2010) Vol. 4, pp 102-111

Ecological Waste Treatment and Utilization Systems on Low-Cost, Energy-Saving/Generating and Resources Recoverable Technology for Water Pollution Control in China

1991 ◽  
Vol 24 (5) ◽  
pp. 9-19 ◽  
Author(s):  
Baozhen Wang
Keyword(s):  
Pollution Control ◽  
Rural Areas ◽  
Waste Treatment ◽  
Low Cost ◽  
Fish Ponds ◽  
Receiving Waters ◽  
Recoverable Resources ◽  
Urban And Rural Areas ◽  
Rice Fish ◽  
Utilization Of Wastes

Various ecological waste treatment and utilization systems (EWTUS) available in urban and rural areas in China are described, among which are land treatment and utilization systems (LTUS), eco-pond systems mainly consisting of macrohydrophytes-growing ponds, fish ponds and duck/geese ponds, and comprehensive circulation eco–systems for the treatment and utilization of wastes in rural areas, such as semi–closed eco–system in fish ponds, “rice–fish” and “rice–azolla–fish” symbiotic systems, recycling eco–systems with methane-generating digesters as central link, and comprehensive recycling eco–systems with digesters and eco–ponds as central link. In the various EWTUS, the sewage and wastewaters and other wastes are utilized and converted into various forms of recoverable resources and/or energy, while they are being purified to good quality effluents, meeting their respective discharge standards, and hence acceptable to receiving waters.

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