Long-term effects of commercial harvest exclusion on forest structure and aboveground biomass in the Great Xing'an Mountains, China

2018 ◽  
Vol 38 (4) ◽  
Author(s):  
徐文茹 XU Wenru ◽  
贺红士 HE Hongshi ◽  
罗旭 LUO Xu ◽  
黄超 HUANG Chao ◽  
唐志强 TANG Zhiqiang ◽  
...  
Keyword(s):  
Forest Structure ◽  
Aboveground Biomass ◽  
Long Term Effects ◽  
Commercial Harvest ◽  
Great Xing’An Mountains

Long-term effects of salvage logging after a catastrophic wind disturbance on forest structure in northern Japan

2019 ◽  
Vol 15 (2) ◽  
pp. 133-141 ◽  
Author(s):  
Junko Morimoto ◽  
Toshihiro Umebayashi ◽  
Satoshi N. Suzuki ◽  
Toshiaki Owari ◽  
Naoyuki Nishimura ◽  
...  
Keyword(s):  
Forest Structure ◽  
Wind Disturbance ◽  
Long Term Effects ◽  
Salvage Logging ◽  
Northern Japan

Overstorey–Understorey Interactions Intensify After Drought-Induced Forest Die-Off: Long-Term Effects for Forest Structure and Composition

Ecosystems ◽  
2017 ◽  
Vol 21 (4) ◽  
pp. 723-739 ◽  
Author(s):  
Timothy Thrippleton ◽  
Harald Bugmann ◽  
Marc Folini ◽  
Rebecca S. Snell
Keyword(s):  
Forest Structure ◽  
Long Term Effects

Long-term effects of prescribed fire on mixed conifer forest structure in the Sierra Nevada, California

2011 ◽  
Vol 261 (6) ◽  
pp. 989-994 ◽  
Author(s):  
Phillip J. van Mantgem ◽  
Nathan L. Stephenson ◽  
Eric Knapp ◽  
John Battles ◽  
Jon E. Keeley
Keyword(s):  
Sierra Nevada ◽  
Prescribed Fire ◽  
Forest Structure ◽  
Conifer Forest ◽  
Long Term Effects ◽  
Mixed Conifer ◽  
Mixed Conifer Forest

Ovarian Dysfunction in Fetally Irradiated Beagles

1977 ◽  
Vol 35 ◽  
pp. 658-659
Author(s):  
T. M. Seed ◽  
M. H. Sanderson ◽  
D. L. Gutzeit ◽  
T. E. Fritz ◽  
D. V. Tolle ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Low Dose ◽  
Long Term Effects ◽  
Ovarian Dysfunction ◽  
Dose Rates ◽  
Highly Sensitive ◽  
Microscopic Evaluation ◽  
Ovarian Pathology ◽  
Normal Offspring

The developing mammalian fetus is thought to be highly sensitive to ionizing radiation. However, dose, dose-rate relationships are not well established, especially the long term effects of protracted, low-dose exposure. A previous report (1) has indicated that bred beagle bitches exposed to daily doses of 5 to 35 R 60Co gamma rays throughout gestation can produce viable, seemingly normal offspring. Puppies irradiated in utero are distinguishable from controls only by their smaller size, dental abnormalities, and, in adulthood, by their inability to bear young.We report here our preliminary microscopic evaluation of ovarian pathology in young pups continuously irradiated throughout gestation at daily (22 h/day) dose rates of either 0.4, 1.0, 2.5, or 5.0 R/day of gamma rays from an attenuated 60Co source. Pups from non-irradiated bitches served as controls. Experimental animals were evaluated clinically and hematologically (control + 5.0 R/day pups) at regular intervals.

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