Ecological Archives E091-035-A5

Maria B. Postma-Blaauw, Ron G. M. de Goede, Jaap Bloem, Jack H. Faber, and Lijbert Brussaard. 2010. Soil biota community structure and abundance under agricultural intensification and extensification. Ecology 91:460–473.

Appendix E. Agricultural management effects on soil biota abundances and microbial characteristics.

The effect of agricultural management on soil biota taxonomic groups and microbial characteristics in the third and fourth year after conversion (2002, 2003). Means (n = 3) and P levels of significance (P < 0.10) as a result of ANOVA are presented. Hist = field history, Fert = Fertilization. Other abbreviations as in Appendix A and Appendix B. Only soil biota groups that were significantly affected by land used change are presented.

 

2002

2003

LongA

NewA

LongA

NewA

Mon

Rot

Mon

Rot

Mon

Rot

Mon

Rot

Means (n = 3)

CF

RF

CF

RF

CF

RF

CF

RF

RF

RF

RF

RF

Earthworms (n m-2)

13

8

13

46

0

17

4

0

4

17

0

0

Collembolans (n m-2 103)

ND

ND

5

5

ND

ND

ND

ND

5

2

1

2

Nematodes (n g-1)

49

41

77

49

31

34

35

29

36

23

37

10

Protozoans (n mg-1)

41

39

64

97

25

46

47

107

36

31

38

38

Fungal biomass (µg C g-1)

6

8

12

12

24

19

18

10

4

3

8

5

Thymidine incorporation pmol g-1 h-1)

44

65

92

99

35

31

35

61

18

25

11

24

Leucine incorporation (pmol g-1 h-1)

259

349

407

437

298

231

293

349

242

316

209

24

 

 

2002

2003

P levels of significance (P<0.10)

Hist

Crop

Fert

Crop × Fert

Hist

Crop

Earthworms (n m-2)

0.090

 

 

0.096

0.001

 

Nematodes (n g-1)

0.000

0.021

0.024

 

 

0.003

Protozoans (n mg-1)

 

0.000

0.004

 

 

 

Fungal biomass (µg C g-1)

0.000

0.001

0.016

 

0.095

 

Thymidine incorporation (pmol g-1 h-1)

0.001

0.016

 

 

 

 

Leucine incorporation (pmol g-1 h-1)

0.025

0.021

 

 

 

 


[Back to E091-035]