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Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates
Alternative TitleEffect of Different Rice-Crab Coculture Modes on Soil Carbohydrates
Yan Ying1; Liu Mingda1; Yang Dan1; Zhang Wei1; An Hui1; Wang Yaojing1; Xie Hongtu2; Zhang Xudong2
2014
Source PublicationJOURNAL OF INTEGRATIVE AGRICULTURE
ISSN2095-3119
Volume13Issue:3Pages:641-647
AbstractTraditional agricultural systems have contributed to food and livelihood security. Rice-crab coculture (RC) is an important eco-agricultural process in rice production in northern China. Recognizing the soil fertility in RC may help develop novel sustainable agriculture. Soil carbohydrates are important factors in determining soil fertility in different culture modes. In this study, soil carbohydrates were analyzed under three different culture modes including rice monoculture (RM), conventional rice-crab coculture (CRC) and organic rice-crab coculture (ORC). Results showed that the contents of soil organic carbon and carbohydrates were significantly higher in the ORC than those in RM. The increasing effect was greater with increased organic manure. Similar tendency was found in CRC, but the overall effect was less pronounced compared with ORC. Carbohydrates were more sensitive to RC mode and manure amendment than soil organic carbon. Compare to RM, the (Gal+Man)/(Ara+Xyl) ratio decreased in all the RC modes, indicating a relative enrichment in plant-derived carbohydrates due to the input of crab feed and manure. While the increasing (Gal+Man)/(Ara+Xyl) ratio in ORC modes with increased organic manure suggested that crab activity and metabolism induced microbially derived carbohydrates accumulation. The lower GluN/MurA ratio in ORC indicated an enhancement of bacteria contribution to SOM turnover in a short term. The findings reveal that the ORC mode could improve the quantity and composition of soil carbohydrates, effectively, to ensure a sustainable use of paddy soil.
Other AbstractTraditional agricultural systems have contributed to food and livelihood security. Rice-crab coculture (RC) is an important eco-agricultural process in rice production in northern China. Recognizing the soil fertility in RC may help develop novel sustainable agriculture. Soil carbohydrates are important factors in determining soil fertility in different culture modes. In this study, soil carbohydrates were analyzed under three different culture modes including rice monoculture (RM), conventional rice-crab coculture (CRC) and organic rice-crab coculture (ORC). Results showed that the contents of soil organic carbon and carbohydrates were signiifcantly higher in the ORC than those in RM. The increasing effect was greater with increased organic manure. Similar tendency was found in CRC, but the overall effect was less pronounced compared with ORC. Carbohydrates were more sensitive to RC mode and manure amendment than soil organic carbon. Compare to RM, the (Gal+Man)/(Ara+Xyl) ratio decreased in all the RC modes, indicating a relative enrichment in plant-derived carbohydrates due to the input of crab feed and manure. While the increasing (Gal+Man)/(Ara+Xyl) ratio in ORC modes with increased organic manure suggested that crab activity and metabolism induced microbially derived carbohydrates accumulation. The lower GluN/MurA ratio in ORC indicated an enhancement of bacteria contribution to SOM turnover in a short term. The ifndings reveal that the ORC mode could improve the quantity and composition of soil carbohydrates, effectively, to ensure a sustainable use of paddy soil.
KeywordPARTICLE-SIZE FRACTIONS AMINO-SUGARS CARBON SEQUESTRATION PADDY SOIL SYSTEM MANURE FISH FERTILIZER STABILITY NITROGEN rice monoculture rice-crab coculture manure carbohydrates
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China]
CSCD IDCSCD:5097635
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150640
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.中国科学院
Recommended Citation
GB/T 7714
Yan Ying,Liu Mingda,Yang Dan,et al. Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2014,13(3):641-647.
APA Yan Ying.,Liu Mingda.,Yang Dan.,Zhang Wei.,An Hui.,...&Zhang Xudong.(2014).Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates.JOURNAL OF INTEGRATIVE AGRICULTURE,13(3),641-647.
MLA Yan Ying,et al."Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates".JOURNAL OF INTEGRATIVE AGRICULTURE 13.3(2014):641-647.
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