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| 1 | Large-scale permafrost degradation as a primary factor in Larix sibirica forest dieback in the Khentii massif,northern Mongolia显示文摘The objective of this study is to investigate the potential causes of widespread Larix sibirica Ledeb.mortality observed in the Khentii massif of northern Mongolia.The ratio of deadwood to living trees in affected stands in the Goricho region,the southernmost study site situated close to the Gobi Desert,was as high as 3.6:1.Moisture fluctuations monitored over 2 years using electrical impedance spectrometry revealed that the Goricho study site had higher soil moisture levels than the two less affected sites Barun Bayan and Dzun Bayan.High soil moisture was recorded in an area characterized by highly skeletal soils,ones with more than 35%by volume of rock fragments,and comparatively shallow soil horizons,from valley to mountains.The layer of permafrost influencing hydrogeological processes is much deeper in the Goricho region compared to the undisturbed study sites.Redundancy analysis confirmed a significant number of dead L.sibirica on sites with developed soils.Live forest stands,however damaged,grow in this region on well-drained scree slopes or on rocky bastions.The mass mortality observed for L.sibirica may be directly linked to accelerated permafrost thaw in the area bordered by the Tuul and the Terelj Rivers.Our assumption is that L.sibirica root system necrosis occurred as a result of long-term waterlogging of developed soils with high spatial heterogeneity,normally able to absorb high quantities of groundwater.The areas unaffected were scree fields and rocky bastions characterized by adequate drainage.All of our findings support the primary stages of large-scale permafrost thaw,i.e.,correlating increases in soil moisture with increasing permafrost active layer thickness. | David Juricka Jitka Novotna Jakub Houska Jana Parilkova Jan Hladky Vaclav Pecina Hana Cihlarova Marcela Burnog Jakub Elbl Zdena Rosicka Martin Brtnicky Jindrich Kynicky | 2020 | Journal of Forestry Research2020，31，1： | 2 |
| 2 | Should fluorescence alteration replace vitrinite reflectance as a major tool for thermal maturity determination in oil exploration? 显示文摘 | Wilkins R W T Wilmshurst J R Hladky G | 1995 | Organic Geochemistry1995，22，： | 1 |
| 3 | Should fluorescence alteration replace vitrinite reflectance as a major tool for thermal maturity determination in oil exploration? 显示文摘 | Wilkins R W T Wilmshurst J R Hladky G Ellacott M V Buckingham C P | 1995 | Organic Geochemistry1995，22，： | 1 |
| 4 | The measurement of corrosion using electrochemical I/f noise 显示文摘 | HLADKY K DAWSON J L | 1982 | Corrosion Science1982，22，3： | 1 |
| 5 | The use of permanent corrosion monitoring in new and existing reinforced concrete structures显示文摘 | John P Broomfield Kevin Davies Karel Hladky | 2002 | Cement and Concrete Composites2002，，1： | 1 |
| 6 | Uncommon etiology of extradural hematoma显示文摘 | Cabon I Hladky JP Lambilliotte A | 1997 | Neurochirurgie1997，43，3： | 1 |
| 7 | The Measurement of Corro- sion Using Electrochemical of Noise 显示文摘 | HLADKY K DAWSON J L | 1982 | Corrosion Sci- ence1982，22，3： | 1 |
| 8 | The intra-arterial chemotherapy of tumorous lesions of the stomach,rectum and liver显示文摘 | Hladkyǐ OV Rodzaievs′kyǐ SO Tur MO | 2011 | Lik Sprava2011，，2： | 1 |
| 9 | The measurement of corrosion using electrochemical 1/f noise显示文摘 | Hladky K Dawson J L | 1982 | Corrosion Science1982，22，： | 1 |
| 10 | The measurement of corrosion using electrochemical 1/f noise显示文摘 | Hladky K Dawson J L | 1981 | Corrosion Science1981，21，： | 1 |
| 11 | Placental abruption显示文摘 | Hladky K Yankowitz J Hansen WF | 2002 | Obstet Gynecol Surv2002，57，： | 1 |
| 12 | The measurement of corrosion using electrochemical l/f noise显示文摘 | Hladky K Dawson J L | 1982 | Corrosion Science1982，22，： | 1 |
| 13 | The use of permanent corrosion monitoring in new and existing reinforced concrete structures显示文摘 | BROOMFIELD J P DAVIES K HLADKY K | 2002 | Cement and Concrete Composites2002，24，1： | 1 |
| 14 | Should fluores-cence alteration replace vitrinite reflectance as a major tool for thermal maturity determination in oil exploration显示文摘 | Wilkiins R W T Wilmshurst J R Hladky G | | 0，，： | 1 |
| 15 | Should fluorescence alteration replace vitrinite reflec- tance as a major tool for thermal maturity determination in oil exploration? 显示文摘 | Wilkins Ronaldwt Wilmshurst Johnr Hladky George | 1995 | Organic Geochemistry1995，22，95： | 1 |
| 16 | Systematic study of the solvent extraction of metal β-diketones显示文摘 | Stary J Hladky E | 1963 | Anal Chim Acta1963，28，3： | 1 |
| 17 | Using a screen filter positively influences the physical well-being of VDU operators显示文摘 | Hladky A Prochdzka B | 1998 | Cent Eur J Pubfic Health1998，6，3： | 1 |
| 18 | Peritoneal pseudocyst - ventriculoperitoneal shunt complications 显示文摘 | Besson R Hladky JP Dhellemmes P | 1995 | Eur J Pediatr Surg1995，5，4： | 1 |
| 19 | The measurement of corrosion using electrochemical I/f noise显示文摘 | Hladky K Dawson J L | 1982 | Corrosion Science1982，22，： | 1 |
| 20 | Placental abruption 显示文摘 | Hladky K Yankowitz J Hansen WF | 2002 | Obstet Gynecol Surv2002，57，5： | 1 |
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