Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates

IMR OpenIR

	Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates
其他题名	Effect of Different Rice-Crab Coculture Modes on Soil Carbohydrates
	Yan Ying 1; Liu Mingda 1; Yang Dan 1; Zhang Wei 1; An Hui 1; Wang Yaojing 1; Xie Hongtu 2; Zhang Xudong 2
	2014
发表期刊	JOURNAL OF INTEGRATIVE AGRICULTURE
ISSN	2095-3119
卷号	13 期号:3 页码:641-647
摘要	Traditional 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.
其他摘要	Traditional 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.
关键词	PARTICLE-SIZE FRACTIONS AMINO-SUGARS CARBON SEQUESTRATION PADDY SOIL SYSTEM MANURE FISH FERTILIZER STABILITY NITROGEN rice monoculture rice-crab coculture manure carbohydrates
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China]
CSCD记录号	CSCD:5097635
引用统计	被引频次：8[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/150637
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.中国科学院
推荐引用方式 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.