Effect of cultivation on spatial distribution of nematode trophic groups in black soil

CORC > 沈阳应用生态研究所 > 中国科学院沈阳应用生态研究所 > 沈阳应用生态研究所 > 期刊论文

	Effect of cultivation on spatial distribution of nematode trophic groups in black soil
	Liang, WJ ; Li, Q ; Jiang, Y ; Chen, WB ; Wen, DZ
刊名	PEDOSPHERE
	2003
卷号	13 期号:2 页码:97-102
关键词	cultivation GIS soil nematode spatial distribution trophic group
ISSN号	1002-0160
通讯作者	Liang, WJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang Expt Stn Ecol, Shenyang 110016, Peoples R China
中文摘要	Geostatistics combined with GIS was applied to assess the spatial distribution of nematode trophic groups following two contrasting soil uses in the black soil region of Northeast China. Two plots, one with fallow for 12 years and the other cultivated, were marked on regular square grids with 2-m spacing. Soil samples were collected. from each sampling point, nematodes were extracted from these samples and classified into four trophic groups: bacterivores, fungivores, plant parasites, and omnivores/predators. The numbers of total nematodes and trophic groups analyzed had normal distributions on both fallow and cultivated plots. The absolute abundances of total nematodes and trophic groups were observed to be much more homogeneous on cultivated plot than on fallow one. Geostatistical analysis showed that the densities of total nematodes and trophic groups on both fallow and cultivated plots exhibited spatial dependence at the sampled scale and their experimental semivariograms were adjusted to a spherical or exponential model, except those of bacterivores and fungivores on cultivated plot. The spatial distribution of nematode trophic groups was found to be different for the two land uses, indicating that cultivation changed the native condition for soil nematode activities.
学科主题	Soil Science
收录类别	SCI
语种	英语
WOS记录号	WOS:000186055900001
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55337]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Liang, WJ,Li, Q,Jiang, Y,et al. Effect of cultivation on spatial distribution of nematode trophic groups in black soil[J]. PEDOSPHERE,2003,13(2):97-102.
APA	Liang, WJ,Li, Q,Jiang, Y,Chen, WB,&Wen, DZ.(2003).Effect of cultivation on spatial distribution of nematode trophic groups in black soil.PEDOSPHERE,13(2),97-102.
MLA	Liang, WJ,et al."Effect of cultivation on spatial distribution of nematode trophic groups in black soil".PEDOSPHERE 13.2(2003):97-102.