Lieu-dit · Trélou-sur-Marne
Le Pré Buron
Le Pré Buron is a lieu-dit in Trélou-sur-Marne, Vallée de la Marne, Champagne, whose largest tier is champagne.
3.64 ha
delimited
82 m
elevation
11.6 h
sun at harvest
Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.
In figures
| Level | Champagneinao-aoc-viticoles-bulk (not in this commune) |
|---|---|
| Village | Trélou-sur-Marne |
| Region | Vallée de la Marne, Champagne |
| Delimited | 3.64 hainao-aoc-viticoles-bulk (not in this commune) · cadastre-etalab (4 September 2026) |
| Planted | 3.44 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (4 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 42 |
| Grape variety | meunier 61 %, chardonnay 22 %, pinot noir 17 % also permitted: arbane, petit meslier, pinot blanc, pinot grisinao-cahiers-des-charges (7 September 2026) · dgddi-superficies-produits (7 September 2026) · franceagrimer-observatoire-viticulture (7 September 2026) |
| Organic | 0%agence-bio-cartobio (c. 5 September 2026) · agence-bio-operateurs (5 September 2026) |
Place in the village
Among the 127 named plots ranked champagne in Trélou-sur-Marne, from high to low:
Position
82 m
elevation
10.6%
firm
ESE
east-southeast
foot
even slope
| Elevation | 82 m 66 to 92 mign-rge-alti (5 September 2026) |
|---|---|
| Slope | 10.6% 6.1°ign-rge-alti (5 September 2026) |
| Aspect | east-southeast 103°ign-rge-alti (5 September 2026) |
| On the slope | 12% foot of the slope, on an even plane, 770 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 31%Colluvium, mixed slope deposit about 0.1–0 million years
- 67%Ypresian sand, sandstone and conglomerate 56–48 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. Tends towards lighter, early-ripening wines with supple tannin and an open, fragrant style. How much of that really comes from the sand cannot be separated from planting density, yield and the age of the vines.
Lower Eocene, roughly 56 to 48 million years old. These are deposits of rivers, alluvial fans and lakes on the southern edge of the Paris Basin: loose quartz sands, locally cemented into hard sandstone beds, with gravel layers and conglomerate full of reworked flint from the older chalk. In the ground it is a granular, rust-brown to ochre-yellow mass without solid rock, with clayey interlayers that can appear and disappear again over short distances.
For the vine. Sand drains quickly and generally warms up promptly in spring, which can get root growth going early; whether ripening really runs ahead also depends on aspect, soil depth and yield. Active lime is virtually absent, so chlorosis is rarely an issue here, but the water supply is small: a dry summer is felt immediately unless the roots reach a clay layer or the limestone beneath. Because the water drains away anyway, a steep slope is not needed for drainage; many of these plots therefore lie flat, and on flat terrain cold air lingers, with a real risk of late spring frost.
In Bourgogne mainly as a Tertiary cover on the plateaux and along the western edge of the Bresse, in the Chalonnais and the Mâconnais.
BRGM geological map at 1:50,000. It tells vineyards apart, not plots within a vineyard. The link between rock and taste is indirect: soil depth, water and warmth do the work, and slope, vine age and the cellar do the rest. Units on that map: e4b, C.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:34
above the hill
19:11
behind the crest of the slope
11.6 h
sun at harvest
Grey: sun up, but behind the hill or the vineyard's own slope.
Around harvest the sun rises here at 07:34 above the hill and disappears at 19:11 behind the crest of the slope: 11.6 hours of direct sun on a clear day. The ridge reaches 7.3° above the horizon to the northwest.
| Irradiation | +0.2% versus flat land 984 kWh/m² from April to October, 47% of it diffuseunder the average cloudiness of 2005 to 2023 (PVGIS-SARAH3, EU JRC); direct, diffuse and reflected light togetherign-rge-alti (5 September 2026) · ign-lidarhd-mnh (6 September 2026) · ign-bdforet-v2 (5 September 2026) · jrc-pvgis-sarah3 (10 September 2026) |
|---|---|
| Open sky | 99.6% of the sky the slope itself sees; the surrounding relief blocks the restign-rge-alti (5 September 2026) · ign-lidarhd-mnh (6 September 2026) · ign-bdforet-v2 (5 September 2026) |
Three reference days and the caveat
| rise | set | sun | day | |
|---|---|---|---|---|
| 21 June | 05:57 | 20:58 | 15.0 h | 16.2 h |
| 20 September | 07:34 | 19:11 | 11.6 h | 12.3 h |
| 21 December | 09:02 | 16:20 | 7.3 h | 8.2 h |
Computed from the IGN elevation model at 5 m: horizon in 36 directions up to six kilometres, sun position per minute, angle of incidence on the mean slope. Clear sky, with the tree canopy from the IGN forest inventory as a raised horizon (15 m closed forest, 5 m heath, trees within 60 m ignored), 34% of the far field is forest (BD Forêt), no buildings.
Air and cold
18 m
above the lowest point
drains away
cold air
a combe
37.4 ha flows past
| Cold air | 18 m above the hollow, cold air drains awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 37.4 ha a combe, mean over the polygon 2.67 haign-rge-alti (5 September 2026) |
Planting
SE-NW
diagonal to the slope
1.02 m
between the rows
100%
vineyard in 1950
| Rows | SE-NW (142°) diagonal to the slope (39°), every 1.02 m, varies by plotmeasured over 3.2 of 3.4 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 100% rows then ran 24° differentlyassessed over 2.7 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station CHAMBRECY-CIVC, 150 m, 19.4 km away
raw daily series, not corrected for station breaks
The name
- pre
- meadow. Ground that carried grass before the vines came, or lay beside them. Vegetation · Gérard Taverdet, Noms de lieux de Bourgogne (2007)
This is about the words, not about this plot: the same name can have arisen differently elsewhere.
Who owns land here
0.82 ha of 3.64 ha delimited is registered to a legal entity
- CHAMBRE DEP D'AGRICULTURE DE L'AISNE11%
- M H C S6%
- CHAMPAGNE CHARLES ORBAN5%
- private individuals or unknown77%
- 0.41 ha CHAMBRE DEP D'AGRICULTURE DE L'AISNE EPA · other
- 0.23 ha M H C S SA · other
- 0.18 ha CHAMPAGNE CHARLES ORBAN SARL · wine business
Private individuals or unknown: 2.82 ha.
Share of the delimited hectares. Only legal entities are public in France; everything else stays unnamed. From the public register of legal entities (DGFiP), as of 1 January 2025. The owner is not always the one who works the vineyard: tenancy is common.
Nearby lieux-dits
- Le Noyer Brûlé Champagne · 150 m
- La Cirriere Champagne · 200 m
- La Garenne des Pentes Champagne · 200 m
- Le Fond de Baudrion Champagne · 400 m
- Les Longs Tours Champagne · 400 m
- L'Arpent Pierreux Champagne · 400 m
- Le Talon Champagne · 450 m
- Le Pavillon Champagne · 450 m
In the same village, measured between label points. That does not say which ones border each other; the map shows that.
Where each figure comes from
- Classification
- The INAO delimitation per denomination, cut against the cadastral parcel. Only the INAO's own plans are legally binding; this map is informational.
- Area
- Computed on the sphere from longitude and latitude (turf.area), not in Lambert-93. For an appellation this is the union of the INAO polygons across commune boundaries, measured on the unclosed geometry; the fifteen metres used to close the outline for the map are not counted. For a climat it is the union of the cadastral lieu-dit polygons with that name.
- Planted
- Parcel area times vineyard cover, where cover comes from the IGN vegetation layer supplemented by the agricultural declaration. Checked against the customs harvest declarations: median deviation 5.1 per cent over a hundred appellations.
- Elevation
- Mean of the elevation-model cells whose centre falls inside the polygon, on a 5 m grid.
- Slope
- Per-cell slope from the elevation model using Horn's method, then averaged over the cells in the polygon.
- Aspect
- Vector mean of the per-cell aspect. A plain average would turn north-east and north-west into south.
- Sun at harvest
- Hours of direct sun on 20 September under a clear sky, with the horizon in 36 directions out to six kilometres and the height of woods and buildings on top of it. Canopy height is measured where LiDAR HD covers the area and estimated from BD Forêt where it does not; the panel states which of the two was used.
- Grape variety by appellation
- Per appellation and colour the permitted varieties from the approved cahier des charges; per appellation and tier the declared hectares of white and red from the customs harvest declaration (product codes). One colour permitted: the main variety of that colour. Two colours: from 85 percent of the hectares that colour applies, in between it is called mixed. Champagne: the dominant variety from the planted hectares per variety per commune from FranceAgriMer. Per polygon the dominant variety of its parts by area. Derived, not measured: the variety per plot exists only in the customs vineyard register, which is not public. In a two-colour appellation a single plot may carry the other variety. Customs withhold small appellations (statistical secrecy), in which case the split is missing.
- Bedrock
- The geological unit covering the largest share of the polygon, from the 1:50,000 geological map. At 1:50,000 the map separates one climat from another, but not what varies inside a climat.
- Organic
- Share of the area certified organic or in conversion, from the CartoBio plot register.