Lieu-dit · Pouilly-sur-Loire
Les Chailloux
Les Chailloux is a lieu-dit in Pouilly-sur-Loire, Nivernais, Centre-Loire, whose largest tier is village.
3.88 ha
delimited
205 m
elevation
10.8 h
sun at harvest
Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.
In figures
| Level | Villageinao-aoc-viticoles-bulk (c. 4 September 2026) |
|---|---|
| Village | Pouilly-sur-Loire |
| Region | Nivernais, Centre-Loire |
| Delimited | 3.88 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 3.03 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 31 |
| Grape variety | chasselasinao-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 79 named plots ranked village in Pouilly-sur-Loire, from high to low:
Position
205 m
elevation
10.7%
firm
ESE
east-southeast
upper
even slope
| Elevation | 205 m 190 to 215 mign-rge-alti (5 September 2026) |
|---|---|
| Slope | 10.7% 6.1°ign-rge-alti (5 September 2026) |
| Aspect | east-southeast 113°ign-rge-alti (5 September 2026) |
| On the slope | 52% upper slope, on an even plane, 160 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 99%Kimmeridgian marl with Nanogyra 155–149 million years
In the glass. Tends towards bright, acid-driven white wine with a saline impression, in the same vein as the Kimmeridgian of Chablis. For red the picture is far less clear-cut.
Grey-blue marl with intervening limestone beds, loaded with the small comma-shaped oyster Nanogyra virgula, called Exogyra virgula in the older literature. The same virgula facies as in Chablis and in the same Kimmeridgian band, but coded differently on this map sheet; the exact range within the stage need not coincide with that of j8. It weathers to a clayey, lime-rich soil in which the limestone beds lie at the surface as flat fragments.
For the vine. The alternation of marl and limestone beds provides, in theory, both reserve and drainage. Whether that actually works out that way in a plot depends on slope, soil depth and compaction. The active lime content is high, so chlorosis calls for attention in the choice of rootstock, and on flat ground the soil stays cold and wet.
Characteristic of the Châtillonnais around Châtillon-sur-Seine and Massingy, in the same Kimmeridgian band as Chablis and the Côte des Bar.
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: j6c.
brgm-bdcharm50 (4 September 2026)Sun and horizon
08:31
above the hill
19:17
behind the crest of the slope
10.8 h
sun at harvest
1.0 h
lost to the hill
Grey: sun up, behind the hill or its own slope.
Around harvest the sun rises here at 08:31 above the hill and disappears at 19:17 behind the crest of the slope: 10.8 hours of direct sun on a clear day. The ridge reaches 10.7° above the horizon to the northeast. The relief costs 0.7% of the irradiation from April to October, direct and diffuse together.
| Irradiation | +0.2% versus flat land 1,027 kWh/m² from April to October, 44% 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 | 98.1% 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, the caveat
| rise | set | sun | day | |
|---|---|---|---|---|
| 21 June | 07:06 | 21:03 | 13.9 h | 15.9 h |
| 20 September | 08:31 | 19:17 | 10.8 h | 12.3 h |
| 21 December | 09:29 | 16:37 | 7.1 h | 8.5 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), 23% of the far field is forest (BD Forêt), no buildings.
The irradiation loss does include clouds: the average of 2005 to 2023 (PVGIS-SARAH3, EU JRC), not any particular year.
Air and cold
30 m
above the lowest point
drains far away
cold air
a gully
2.1 ha flows past
| Cold air | 30 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 2.1 ha a gully, mean over the polygon 0.12 haign-rge-alti (5 September 2026) |
Planting
E-W
down the slope
1.27 m
between the rows
100%
vineyard in 1950
| Rows | E-W (99°) down the slope (14°), every 1.27 m, varies by plotmeasured over 3.0 of 3.0 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 100% abandoned since: 0.60 ha, rows then ran 50° differentlyassessed over 2.9 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station COURS LES COSNE, 196 m, 17.8 km away
raw daily series, not corrected for station breaks
The name
- chaillot
- pebbles and flint in the ground, from caillou. Les Chaillots in Ladoix is the best known example. Soil and stone · BIVB, Des Climats uniques nés d'un environnement naturel varié (2019)
This is about the words, not about this plot: the same name can have arisen differently elsewhere.
Who owns land here
No parcel here is registered to a legal entity. In France only those owners are public; parcels of private individuals are not.
Nearby lieux-dits
- Les Chaumes Village · 250 m
- Les Chapelles Village · 250 m
- Les Chênes Village · 350 m
- Les Cotes en Verses N 2 Village · 450 m
- Les Arables Village · 500 m
- Les Pierres et Percheries Village · 500 m
- Les Foltieres Village · 500 m
- Les Bonnes Anguilles Village · 500 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.