Seasonal lakes of Pivka

Lake Palško is the largest among the Seasonal lakes of Pivka.
Top image: high water in December, after the autumn rains; bottom image: empty area in autumn, two months earlier.

Seasonal lakes of Pivka is a group of 17 seasonal lakes; the most well known are Lake Petelinje and Lake Palčje, which is the biggest of them at about 1.9 square kilometres (0.73 sq mi).^[1]^[2] They are all located in Pivka Basin, Inner Carniola, Slovenia.^[1] Lake Jeredovce, the northernmost lake, is in Municipality of Postojna, 10 of them (Krajnikov dol, Lake Petelinje, Lake Radohovo, Lake Klenik, Lake Palčje, Lake Parje, Major & Minor Lake Drskovče and Major & Minor Lake Zagorje) are in Municipality of Pivka and the southernmost 6 (Kljunov ribnik, Lake Kalec, Lake behind Kalec (Veliki dol), Lake Bač, Lake Lan and Lake Šembije) are in Municipality of Ilirska Bistrica, all of them are located at altitudes between 549 metres (1,801 ft) and 570 metres (1,870 ft).^[2] There are also two areas (polje) that are only inundated during intense floods, so they are not officially considered Seasonal lakes of Pivka.

The lakes are situated on a rocky terrace in the Upper Pivka Basin at the foothills of the Javorniki range, rising above the Pivka riverbed. The terrace is dotted with a number of depressions with flat bottoms and sharp transitions at the banks, deep enough to reach the level of groundwater fluctuation. Thus, they are inundated after periods of stronger precipitation (late autumn and spring).^[3]

List of lakes

There are total of 19 seasonal lakes, of which 17 are officially recognized. They are all listed from north to south in a table below:^[3]^[4]

Name	Elevation (m)			Surface area (m²)		Volume (m³)		Frequency of inundation	Coordinates	Image
Name	Bottom	Average surface	Max surface	Average	Max	Average	Max	Frequency of inundation	Coordinates	Image
Lake Jeredovce	537,5		542		90.197		113.428	rarely	45°43′46″N 14°12′55″E / 45.729490°N 14.215185°E / 45.729490; 14.215185
Krajnikov dol	537		540		21.513		18.849	rarely	45°43′09″N 14°12′30″E / 45.719075°N 14.208201°E / 45.719075; 14.208201
Lake Petelinje	532,2	541	545	647.157	736.341	4.128.712	6.891.976	often	45°42′24.69″N 14°13′33.82″E / 45.7068583°N 14.2260611°E / 45.7068583; 14.2260611
Lake Palčje	542,3	555	566	1.027.812	1.904.784	7.144.854	22.983.817	often	45°41′7.68″N 14°15′14.53″E / 45.6854667°N 14.2540361°E / 45.6854667; 14.2540361
Lake Klenik (Klenski dol)	544	545	547,5	3.689	36.830	1.330	57.565	rarely	45°40′45″N 14°13′28″E / 45.679230°N 14.224306°E / 45.679230; 14.224306
Lake Radohovo	534,2	535,6	536	7.455	15.519	14.221	22.434	often	45°40′31″N 14°12′19″E / 45.675273°N 14.205231°E / 45.675273; 14.205231
Lake Parje	538	540	542	29.798	37.231	46.060	114.594	often	45°40′02″N 14°13′29″E / 45.667099°N 14.224827°E / 45.667099; 14.224827
Minor Lake Drskovče	539,2	540	544	41.120	82.657	52.593	327.782	often	45°39′47″N 14°13′48″E / 45.663011°N 14.230118°E / 45.663011; 14.230118
Major Lake Drskoče	541,7	545	549	186.334	207.547	441.427	1.247.611	often	45°39′31″N 14°14′16″E / 45.658663°N 14.237718°E / 45.658663; 14.237718
Major Lake Zagorje	549	550	551	16.552	23.479	19.920	39.085	rarely	45°39′11″N 14°14′32″E / 45.653012°N 14.242114°E / 45.653012; 14.242114
Minor Lake Zagorje	544,2	548	548,5	39.425	44.552	83.100	103.768	often	45°39′05″N 14°14′09″E / 45.651476°N 14.235818°E / 45.651476; 14.235818
Lake behind Kalec (Veliki dol za kalcem)	553,8	555	556	15.001	18.496	26.729	42.125	rarely	45°38′38″N 14°14′39″E / 45.643908°N 14.244197°E / 45.643908; 14.244197
Kljunov ribnik	549,5	551	551	784	784	80	80	often	45°38′35″N 14°14′23″E / 45.643181°N 14.239692°E / 45.643181; 14.239692
Lake Bač	560,4	562,5	568	32.531	86.250	64.648	392.551	rarely	45°38′33″N 14°15′25″E / 45.642401°N 14.256960°E / 45.642401; 14.256960
Lake Lan	570,2		572		12.384		19.308	rarely	45°38′30″N 14°15′37″E / 45.641655°N 14.260206°E / 45.641655; 14.260206
Čičko polje^{[* 1]}	568,5		576,5		591.419		591.417	very rare	45°37′46″N 14°14′55″E / 45.629419°N 14.248502°E / 45.629419; 14.248502
Lake Kalec	553,8	555^{[* 2]}	554,5	56.368^{[* 2]}	16.280	26.813^{[* 2]}	6.937	often	45°38′11″N 14°14′22″E / 45.636331°N 14.239513°E / 45.636331; 14.239513
Nariče^{[* 1]}	571,1		573		78.092		82.966	very rare	45°36′10″N 14°15′25″E / 45.602804°N 14.256997°E / 45.602804; 14.256997
Lake Šembije	558,8	560	569,9	12.381	93.561	11.274	549.971	rarely	45°36′04″N 14°15′03″E / 45.601062°N 14.250922°E / 45.601062; 14.250922

1 2 Lake bacause of very rare activity ofiicially isn't a seasonal lake
1 2 3 average water level was measured before the build of a drain canal which drastically decreased water level

Protection

First attempts to protect seasonal lakes date back to 1960s, but even after declaring Lake Petelinje and Lake Palčje as living natural monuments (class II) of national significance, they were still used for military purposes. In 1984, Municipality of Postojna issued a decree declaring Lake Palčje, Lake Petelinje and Minor & Major Lake Drskovče natural monuments and a decade later it expanded to 13 lakes. Despite this, the army still used Lake Palčje and Lake Petelinje, and other areas were becoming overgrown due to discontinuation of farming, so the area continued to degrade. Now, Lake Palčje and Lake Petelinje are protected as Natural Values of national significance, and other lakes as Natural Values of local significance. The lakes are also part of the Ecologically Important Area Snežnik-Pivka, the Special Protection Area Snežnik-Pivka, and the Conditionally Special Protection Area Javorniki-Snežnik.^[5]

In 2014, Seasonal lakes of Pivka regional park was established, encompassing all lakes in the Municipality of Pivka.^[6]^[7]

References

1 2 "Pivška presihajoča jezera | Opis". pivskajezera.si. Retrieved 2020-04-06.
1 2 Vasilevska, Tanja (2007). Kulturna krajina presihajočih Pivških jezer kot bodoči krajinski park (PDF) (MSc). University of Nova Gorica.
1 2 Mulec, Janez; Mihevc, Andrej; Pipan, Tanja (2005). "Intermittent lakes of the Pivka Basin". Acta Carsologica. 34 (3): 543–565.
↑ Kovačič, Gregor; Habič, Špela (4 August 2005). "Intermittent Karst lakes of Pivka Basin (SW SLovenia) during high waters in November 2000". Acta Carsologica. 34 (3): 619–649.
↑ Cernatič Gregorič, Anica; Gorkič, Mirjam (2005). "Intermittent lakes of the Upper Pivka - Protection in time". Acta Carsologica. 34 (3): 815–828.
↑ Popov, Jurij (2017-04-02). "Pivška presihajoča jezera – ogrlica 17 jezer" [Intermittent lakes of Pivka - a necklace of 17 lakes]. Radio Prvi (in Slovenian). Retrieved 2020-04-17.
↑ "Odlok o Krajinskem parku Pivška presihajoča jezera". Uradni list. No. 43/2014. 2014-06-13. p. 4666.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[neur-5] 1 2 Lake bacause of very rare activity ofiicially isn't a seasonal lake

[jarek-6] 1 2 3 average water level was measured before the build of a drain canal which drastically decreased water level

[:0-1] 1 2 "Pivška presihajoča jezera | Opis". pivskajezera.si. Retrieved 2020-04-06.

[:4-2] 1 2 Vasilevska, Tanja (2007). Kulturna krajina presihajočih Pivških jezer kot bodoči krajinski park (PDF) (MSc). University of Nova Gorica.

[Mulec2005-3] 1 2 Mulec, Janez; Mihevc, Andrej; Pipan, Tanja (2005). "Intermittent lakes of the Pivka Basin". Acta Carsologica. 34 (3): 543–565.

[4] Kovačič, Gregor; Habič, Špela (4 August 2005). "Intermittent Karst lakes of Pivka Basin (SW SLovenia) during high waters in November 2000". Acta Carsologica. 34 (3): 619–649.

[Cernatič2005-7] Cernatič Gregorič, Anica; Gorkič, Mirjam (2005). "Intermittent lakes of the Upper Pivka - Protection in time". Acta Carsologica. 34 (3): 815–828.

[8] Popov, Jurij (2017-04-02). "Pivška presihajoča jezera – ogrlica 17 jezer" [Intermittent lakes of Pivka - a necklace of 17 lakes]. Radio Prvi (in Slovenian). Retrieved 2020-04-17.

[9] "Odlok o Krajinskem parku Pivška presihajoča jezera". Uradni list. No. 43/2014. 2014-06-13. p. 4666.

[1]

[2]

[3]

[4]

[* 1]

[* 2]

[5]

[6]

[7]