Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

HOU Xuekun; HU Ning; ZHANG Xiaoke; LIANG Lei; ZHAI Ruichang

doi:10.1007/s11769-010-0106-0

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

doi: 10.1007/s11769-010-0106-0

1.
Liaoning Key Laboratory of Soil Environmental Quality and Agro-product Safety, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2.
College of Plant Sciences and Technology, Heilongjiang August First Reclamation University, Daqing 163319, China;
3.
College of Resources and Environment, Liaoning University, Shenyang 110036, China

基金项目: Under the auspices of Knowledge Innovation Programs of Chinese Academy of Sciences (No. KZCX2-YW-445);the Science and Technology Program of Liaoning Province (No. 2009403053)

详细信息

通讯作者:
ZHANG Xiaoke.E-mail:zxk@iae.ac.cn

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

1.
Liaoning Key Laboratory of Soil Environmental Quality and Agro-product Safety, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2.
College of Plant Sciences and Technology, Heilongjiang August First Reclamation University, Daqing 163319, China;
3.
College of Resources and Environment, Liaoning University, Shenyang 110036, China

Funds: Under the auspices of Knowledge Innovation Programs of Chinese Academy of Sciences (No. KZCX2-YW-445);the Science and Technology Program of Liaoning Province (No. 2009403053)

摘要: Vertical distribution of soil nematode communities under conventional tillage (CT),no-tillage (NT) and fallow field (FF) treatments in the Lower Reaches of the Liaohe River was investigated at six soil depths (0-5 cm,5-15 cm,15-30 cm,30-50 cm,50-75 cm and 75-100 cm). The results show that total nematode abundance gradually decreases with depth,and the highest number of total nematodes is observed at 0-5 cm depth under NT and FF treatments. The number of fungivores and plant parasites is significantly higher under FF and NT treatments than under CT treatment at the 0-5 cm depth. There is significant soil depth effect on the abundances of bacterivores and omnivores-predators,which exhibits a similar trend to that of total nematodes; whereas,no significant tillage effect is found. Tillage effect on soil nematode communities can be reflected by values of relative tillage response of index V. Results of index V indicate that total nematodes,bacterivores,fungivores and plant parasites are mildly inhibited,and omnivores-predators is moderately inhibited under CT treatment; while,under FF treatment total nematodes is mildly,and fungivores and plant parasites are moderately stimulated,respectively.
- soil nematode /
- tillage system /
- vertical distribution /
- tillage response
Abstract: Vertical distribution of soil nematode communities under conventional tillage (CT),no-tillage (NT) and fallow field (FF) treatments in the Lower Reaches of the Liaohe River was investigated at six soil depths (0-5 cm,5-15 cm,15-30 cm,30-50 cm,50-75 cm and 75-100 cm). The results show that total nematode abundance gradually decreases with depth,and the highest number of total nematodes is observed at 0-5 cm depth under NT and FF treatments. The number of fungivores and plant parasites is significantly higher under FF and NT treatments than under CT treatment at the 0-5 cm depth. There is significant soil depth effect on the abundances of bacterivores and omnivores-predators,which exhibits a similar trend to that of total nematodes; whereas,no significant tillage effect is found. Tillage effect on soil nematode communities can be reflected by values of relative tillage response of index V. Results of index V indicate that total nematodes,bacterivores,fungivores and plant parasites are mildly inhibited,and omnivores-predators is moderately inhibited under CT treatment; while,under FF treatment total nematodes is mildly,and fungivores and plant parasites are moderately stimulated,respectively.
- soil nematode /
- tillage system /
- vertical distribution /
- tillage response

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Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

doi: 10.1007/s11769-010-0106-0

通讯作者:
ZHANG Xiaoke.E-mail:zxk@iae.ac.cn

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

计量

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

doi: 10.1007/s11769-010-0106-0

通讯作者: ZHANG Xiaoke.E-mail:zxk@iae.ac.cn

English Abstract

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

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Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

doi: 10.1007/s11769-010-0106-0

通讯作者: ZHANG Xiaoke.E-mail:zxk@iae.ac.cn

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

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Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

doi: 10.1007/s11769-010-0106-0

通讯作者: ZHANG Xiaoke.E-mail:zxk@iae.ac.cn

English Abstract

Vertical Distribution of Soil Nematode Communities under Different Tillage Systems in Lower Reaches of Liaohe River

全文HTML

目录

通讯作者:
ZHANG Xiaoke.E-mail:zxk@iae.ac.cn