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Sub-Recent Sexual Populations of Limnocythere inopinata Recorded for the First Time from>3500 m Altitude on the Tibetan Plateau 被引量:2
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作者 ZHANG Wanyi Steffen MISCHKE +2 位作者 ZHANG Chengjun ZHANG Huirong WANG Peng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2015年第3期1041-1042,共2页
The central and northwestern Tibetan Plateau region,also called"Qiangtang Plateau"(30°27'25"-35°39'13"N,83o41'14"-95°10'46"E),is the highest and largest arcticalpine area of the Earth coveri... The central and northwestern Tibetan Plateau region,also called"Qiangtang Plateau"(30°27'25"-35°39'13"N,83o41'14"-95°10'46"E),is the highest and largest arcticalpine area of the Earth covering approximately 600,000km^2 with altitude ranging from 4600 to 5100 m a.s.l.(Song et al.,2012,Fig.1). 展开更多
关键词 sub-recent Sexual Populations of Limnocythere inopinata Recorded for the First Time from>3500 m Altitude on the Tibetan Plateau
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近500年来长江上游亚热带山地中低山植被的演替 被引量:7
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作者 蓝勇 《地理研究》 CSCD 北大核心 2010年第7期1182-1192,共11页
从人口分布变迁入手探讨植被变迁,发现距今500年以前,长江上游亚热带山地海拔3000~1500m的中低山地区多是乔木林为主而间与草甸混交景观,而非现在的以草甸、灌草坡为主的景观。人类主要居住在海拔1500m以下的平坝、台地和丘陵地区,人... 从人口分布变迁入手探讨植被变迁,发现距今500年以前,长江上游亚热带山地海拔3000~1500m的中低山地区多是乔木林为主而间与草甸混交景观,而非现在的以草甸、灌草坡为主的景观。人类主要居住在海拔1500m以下的平坝、台地和丘陵地区,人类活动对海拔1500m以上的山地地区影响甚小。现代地理学界静态描述的长江上游地区海拔1500~3000m的中低山湿地草坡带,在500多年前仍多是以冷杉、云杉为主的针阔叶林与草甸混交景观。近500年来人类垦殖、商业砍伐、皇木采办等活动是造成这种变化的主要原因。皇木采办、商业采办影响了长江上游中低山的森林资源的品质,主要对高大的楠杉的砍伐,较明显地影响了森林的郁闭度,但并不给森林资源带来不可回归的影响。人类垦殖活动,特别是固定的农耕活动,大量砍挖树根,使森林资源的自我恢复失去了可能。气候变化的影响可能在其中,一时还难以区分,需继续关注。 展开更多
关键词 亚热带山地 植被 演替 近500年 长江上游
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Sea Level Records on Ouvéa Island in New Caledonia
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作者 Nils-Axel Mörner 《Natural Science》 2020年第6期329-359,共31页
Ouvéa Island in New Caledonia emerges as a new sea level standard. It has excellent morphological records of former sea level positions at interglacial high-stands as well as records of Holocene changes in sea le... Ouvéa Island in New Caledonia emerges as a new sea level standard. It has excellent morphological records of former sea level positions at interglacial high-stands as well as records of Holocene changes in sea level from a maximum at about +1.5 m via a significant +70 cm level of sub-recent, probably 17<sup><span style="font-family:Verdana;">th</span></sup><span style="font-family:Verdana;"> century, age to a stable to falling sea level in present time.</span> 展开更多
关键词 Sea Level Last Interglacial The Holocene sub-recent Sea Level 17th Century The Present
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Recent Status of Willow Ptarmigan in China
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作者 于孝臣 高志远 田佳龙 《Journal of Forestry Research》 SCIE CAS CSCD 1998年第2期133-135,共3页
The recent distribution status of Willow ptarmigan (Lagopus lagopus) in China was studied by picture issuing, interview and on-the-spot investigation from 1992 to 1997. Results showed that Willow ptarmigan was a criti... The recent distribution status of Willow ptarmigan (Lagopus lagopus) in China was studied by picture issuing, interview and on-the-spot investigation from 1992 to 1997. Results showed that Willow ptarmigan was a critically endangered species in China. It was distributed rarely in the northwestern region of the Daxing’an Mountains. Willow ptarmigan found in China belonged to L. I. serebrosky in sub-species position. 展开更多
关键词 WILLOW ptarmigan DISTRIBUTION RECENT STATUS Sub-species
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