Keystone taxa-mediated bacteriome response shapes the resilience of the paddy ecosystem to fungicide triadimefon contamination

2021 ◽  
pp. 126061
Author(s):  
Xiaoyan Fan ◽  
Yan Fu ◽  
Yanxia Nie ◽  
Haruna Matsumoto ◽  
Yue Wang ◽  
...  
Keyword(s):  
Paddy Ecosystem

CH4 Emissions Reduction Potential of Rice Paddy Ecosystem in South Jiangsu Province

2013 ◽  
Vol 734-737 ◽  
pp. 1820-1823
Author(s):  
Lei Zhong ◽  
Hui Zou ◽  
Xin Hao
Keyword(s):  
Reduction Potential ◽  
Rice Paddy ◽  
Jiangsu Province ◽  
Emissions Reduction ◽  
Temporal And Spatial Variation ◽  
Growing Seasons ◽  
Paddy Ecosystem ◽  
Variation Characteristics ◽  
Temporal And Spatial ◽  
The Difference

Estimating the reduction potential of methane (CH4) emissions in order to provide some advices for reducing them in paddy ecosystem. In order to study the temporal and spatial variation characteristics and the reduction potential of CH4emissions, conducting a database of CH4emissions of rice growing seasons and rice growing area in the study area. From 2001 to 2010, both the rice growing area and the CH4emission of south Jiangsu province shown a declining trend. In these 10 years, total CH4emissions decreased by 29.90×1010g, a drop of 30.72%. Base on the rice growing area in 2010, the total reduction potential of CH4emissions was 46.18×1010g in south Jiangsu province. From 2001 to 2010, the difference of CH4emissions per unit area between the cities were not big, their CH4emissions reduction was mainly due to a reduction of rice growing area.

Analysis of the interaction among rice, weeds, inorganic fertilizer, and a herbivore in a composite farming paddy ecosystem

2018 ◽  
Vol 300 ◽  
pp. 145-156 ◽  
Author(s):  
Zhaohua Wu ◽  
Yi Wang ◽  
Xiaoli Zhou ◽  
Tiejun Zhou
Keyword(s):  
Inorganic Fertilizer ◽  
Paddy Ecosystem

scholarly journals Rural Transformation in Various Ecosystem in Indonesia

2021 ◽  
Vol 232 ◽  
pp. 04002
Author(s):  
Sri Hery Susilowati ◽  
Ashari ◽  
Tahlim Sudaryanto
Keyword(s):  
Household Income ◽  
Land Markets ◽  
Processed Foods ◽  
Dry Land ◽  
Rural Transformation ◽  
Rural Infrastructure ◽  
Agricultural Employment ◽  
Dynamic Transformation ◽  
Paddy Ecosystem ◽  
Nonfarm Income

The agricultural and rural sectors in Indonesia have experienced a dynamic transformation. This process of transformation reflected the changes in employment and income structure. This paper analyzes the changes in employment, income structures, and dietary patterns in various ecosystems, namely wetland paddy, dry land secondary, vegetables, and plantation. We use micro panel data collected from 1,155 rural households in 8 provinces, and 33 villages in Java and off-Java in 2007-2012 and 2016 -2018. The results showed that the share of agriculture employment decreased from 89.1 % in 2007 to 56.7 % in 2016 in the wetland paddy ecosystem, and the reverse was true for non-agricultural employment. Household income from agriculture was still dominant but showed a decreasing trend. The share of agriculture income declined; the most significant decline is in the wetland paddy ecosystem. Furthermore, a nonfarm income also tends to increase. Share of cereal consumption expenditure tends to decrease while processed foods and instant drinks tend to grow. For accelerating agricultural and rural transformation, government policy should focus on investment in rural infrastructure, promote labor and land markets, and build capacity building based on the need for a different ecosystem of the rural population.

Cerium-modified biochar: A recycling biomaterial for regulating phosphorus availability in paddy ecosystem from coastal mudflat reclamation

Geoderma ◽  
2019 ◽  
Vol 346 ◽  
pp. 43-51 ◽  
Author(s):  
Haiying Lu ◽  
Yanfang Feng ◽  
Yuanyuan Feng ◽  
Yue Dong ◽  
Haijun Sun ◽  
...  
Keyword(s):  
Phosphorus Availability ◽  
Modified Biochar ◽  
Paddy Ecosystem

scholarly journals Effect of HNO3 and H2SO4 on the Paddy Ecosystem: A Mesocosm Study with Exposure at PNEC and HC50 Levels

2020 ◽  
Vol 17 (14) ◽  
pp. 5244
Author(s):  
Minseok Park ◽  
Wonjae Hwang ◽  
Jino Son ◽  
June Wee ◽  
Kijong Cho ◽  
...  
Keyword(s):  
Tubifex Tubifex ◽  
Poor Correlation ◽  
Pomacea Canaliculata ◽  
Path Modeling ◽  
Shoot Height ◽  
Nitrogen Levels ◽  
Yield And Quality ◽  
Paddy Ecosystem ◽  
Initial Ph ◽  
Grain Yield And Quality

Paddy mesocosms comprising of rice (Oryza sativa), snail (Pomacea canaliculata), and worm (Tubifex tubifex) were used to assess the damage caused by two acids (HNO3 and H2SO4) at predicted no-effect concentration (PNEC) and hazardous concentration for 50% of species (HC50) levels. In the fourth week, the fresh weight and shoot height of O. sativa at H2SO4-HC50 were reduced by 83.2% and 30.3%, respectively. Wilted leaves (%) at HC50 were approximately twice that at PNEC. No P. canaliculata and T. tubifex were recovered at HC50. At H2SO4-PNEC, the length and weight of P. canaliculata were reduced by 7.4% and 25.9%, respectively, whereas fewer adult (46.5%) and juvenile (84%) T. tubifex were recovered. In the 20th week, rice growth and productivity were correlated with initial pH (pHi) and nitrogen levels. Poor correlation with chlorophyll at the active tillering stage suggests the disturbance of nutrient uptake by roots. Partial least squares path modeling (PLS-PM) results further supported that the pHi directly affects grain yield and quality, as well as plant growth. The indirect effect via intervening fourth-week-variables was also substantial. Therefore, it is important to measure initial pH upon acid spill to estimate the risk to the paddy ecosystem. Information on the change in soil properties associated with acidity will also aid in predicting the yield and quality of grain to be harvested.

Isolation and characterization of methane utilizing bacteria from wetland paddy ecosystem

2014 ◽  
Vol 30 (6) ◽  
pp. 1845-1860 ◽  
Author(s):  
Y. K. Jhala ◽  
R. V. Vyas ◽  
H. N. Shelat ◽  
H. K. Patel ◽  
H. K. Patel ◽  
...  
Keyword(s):  
Isolation And Characterization ◽  
Paddy Ecosystem

Effects of Azolla species on weed emergence in a rice paddy ecosystem

2005 ◽  
Vol 5 (4) ◽  
pp. 176-183 ◽  
Author(s):  
MOLOY BISWAS ◽  
SULTANA PARVEEN ◽  
HIDEKI SHIMOZAWA ◽  
NOBUKAZU NAKAGOSHI
Keyword(s):  
Rice Paddy ◽  
Paddy Ecosystem ◽  
Weed Emergence

scholarly journals Development of Environment Friendly Paddy Ecosystem for Sustainable Rice Farming through Soil Amendments with Biochar and Alternate Wetting-Drying Irrigations

2021 ◽  
Vol 10 (04) ◽  
pp. 581-596
Author(s):  
Muhammad Aslam Ali ◽  
Md. Rajib Hassan ◽  
Zubair Al Islam ◽  
Sanjit Chandra Barman ◽  
Badiuzzaman Khan ◽  
...  
Keyword(s):  
Soil Amendments ◽  
Rice Farming ◽  
Environment Friendly ◽  
Paddy Ecosystem
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