1. Contact Person Soil Erosion Network - Experiment
1.1 Name Dr Ion Ionita
1.2 Address Central Research Station
for Soil Erosion Control
6400 Perieni - Barlad
Romania
1.3  Tel +40 35 413770
1.4 Fax +40 35 412837
1.5 Email perieni@axel.ro
1.6 Other researchers involved in the survey Gabriel Petrovici
Cosmin Hurjui
Romulus Margineanu
2. Water erosion
2.1. mm2 - cm2 Dynamics of soil aggregation
2.2. m2 : soil surface dynamic
2.3. runoff plot (100 - 150m2 )
*interill and rill erosion
Long-term monitoring
2.4. small catchments
* discontinuous gully erosion
Long-term monitoring
2.5. large catchments
*continuous gully erosion
Long-term monitoring
2.6. Other processes investigated Siltation rates along discontinuous gully floor and on small reservoirs
3. Wind Erosion
4. Mass Movements
5. Tillage Erosion
5.1   Water erosion:
5.2 Wind erosion:
5.3 Hydrology: .
5.4 Site/topography:
5.5 Plant growth:
5.6 Management:
5.7 Soil:
5.8 Chemistry:
5.9 Weather:
6.Temporal Scale of Experiments
6.1 Spatial
6.2. Temporal
6.2.1  events yes
6.2.2  days yes
6.2.3  weeks yes
6.2.4  months yes
6.2.5  years yes
6.2.6  remarks Field data collection varied depending on meteorological events.
Annualy, there have been occurred 3-4 rainfalls that induced runoff under plots and/or temporary streamflows in studied catchments.
Freeze-thaw cycle has a significant contribution on sediment delivery by increased gullying, mostly.
7 Description of Erosion Factors
7.1 Climate Rainfall distribution;
H I15 index, where H is the hight or ammount of single rain.
7.2 Topography Slope Length
7.3 Soils Some physical and chemical features
7.4 Vegetation Cover and type
7.5 Management Tillage and conservation practices
7.6 Others Hydrological response of small catchments
8. Field Experiments
8.1 Erosion Processes

* interrill and rill erosion

 Field measurements on water and soil losses have been conducted for almost 30 years at Perieni - Barlad, Eastern Romania. Several plots are used, all with a cropping history, fully instrumented for measuring runoff. Two check plots are used as permanent fallow. Others are cultivated with corn, winter wheat, dry beans, bromegrass.
The plots are laying out on loamy textured mollisoil.
Six plots are 25m by 4m (100m2) and two 37.5m by 4m (150m2). The site has an average slope of 12% and it is westlooking

* discontinuous gullying:

 Several gullies were monitored in the neighbourhood of Barlad city, Moldavian Tableland, Romania
Long - term repeated survey has been used since late '70s to identify the gully extension. It is consisting of a particular "close stakes grid" method mixed with surveying by optical theodolite.
To determine siltation rates along gully floor since '80s the automatic leveling measurements on some cross-sections using "iron sheet monuments" as check point have been carried out. In addition, use of Caesium -137 as a tracer of sedimentation was performed after 1996.

* continuous gullies:

 13 sites have been selected to identify the gullying trend over the period 1960-1990 by means of air photographs and stationary levelling.
Since 1980 detailed measurements by a particular "close stakes grid" method mixed with topographic survey were focused on six gullies to establish long-term erosion rates. Those monitored catchments are underlain by wooden soils, developed on deep sandy-clayey Pliocene layers. Cropland is primarly land-use.

* siltation on small reservoirs:

 Since 1996 several sites were selected for sampling recent alluvium and determining depth distribution of Caesium-137
8.2 Location (town, state, country) Barlad City, Moldavian Plateau, Romania
8.3 Equipment Involved

* interrill and rill erosion:

 - runoff plots and collecting tanks with multislot divisory

* gully erosion:

 - Theodolite 020 A and B
- Automatic level AW-30

* siltation on the floor of discontinuous gullies and on small reservoirs:

 - Automatic levels AW-30
- Canbera Ge HP Detector-GC 1518 type for Caesium-137 activity
- Eijkelkamp hand auger equipment

* sediment concentration curve

 Automatic ISCO sediment sampler to determine turbidity in temporary streamflows from representative catchments.
9. Laboratory Experiments - Physical and chemical soil analysis such as pH-test, organic-matter, nutrients, particle-size distribution, bulk density, etc.
- Hydrologic characteristics of monitored streamflows
- Geomorphological computations and mapping
- PC Software as Surfer for Windows, MapViewer, Grapher, Didger, Microsoft Office for Windows
10. Remarks
11. List Relevant Publications
 

Ionita I., (1998) Sediment Delivery Scenarios from Small Watersheds, Proc. of the Sympos. "Vegetation, Land-Use and Erosion Processes", Bucharest. (In press).

Ionita I., Margineanu R., (1998) Results on the Non-Conventional Assessment of Erosion and Sedimentation from Moldavian Tableland, Proc. of the Internat. Sympos. "Environment Protection in Agriculture", Bucharest, Helikon Banat S.A. Publishing Co.

Ionita I., Ouatu O., (1985) Contributions on soil erosion study from Tutova Rolling Hills. Agr. Res. Bull. in Moldavia, vol. 3(71), Jassy (in Romanian).

Ionita I., Ouatu O., (1990) Critical season of soil erosion in Tutova Rolling Hills, Anal. St. "Al. I. Cuza" University of Jassy, t.XXXVI, s. II C (in Romanian).

Motoc M., Ionita I., (1983) Some aspects on the method of establishing the rain and vegetation index for short-term rainfalls. Inf. Bull. ASAS, no. 12, Bucharest (in Romanian).

Motoc M., Ionita I., Nistor D., Vatau A., (1992) Soil Erosion Control in Romania. State of the Art. "Soil Erosion Prevention and Remediation Workshop", U.S. Central and Eastern European Agro-Environmental Program, Budapest.

12    Documentation
12.1 Scientific Documentation
12.2 User's guide
12.3 Technical Documentation
13 Availability
14 Other Relevant Information