内蒙古赤峰市大山前第一地点夏家店下层文化的植被和生态气候

内蒙古赤峰市大山前遗址属于中国北方青铜时代早期文化遗存 ,出土了大量夏家店下层文化遗物 ,其年代为 2 0 0 0BC～ 15 0 0BC。本文对大山前第一地点 1996年发掘区中部的探方T4 0 6内F8H1灰坑出土的木炭碎块进行了种属鉴定 ,并对出土的不同树种的木炭碎块进行分类和称量 ,得知当时的地带性植被为油松林和蒙古栎林 ,生态气候为温湿类型 ,同时也存在着气候暖干波动现象 ;柳属的发现说明遗址附近有河流存在 ;根据蒙古栎的起源和生态特性推测这一时期可能有人类的砍伐活动 ;H1出土的油松木炭可能绝大多数属于薪炭遗存     

略议风景植被

文本提出了风景植被的含义,阐述了风景植被的发生是人类文明进化的结果,分析了风景植被的宏观构景和微观信息特征。同时还以西安临潼骊山旅游区为例,介绍了风景植被的分类系统。     

Western Tibet and the British Borderland

EUROPE

The Irish in Scotland (1798–1845). By James Edmund Handley. Demy 8vo. Pp. ix+313+xix. Cork : University Press, 1943. Price 10s. 6d.

British Woodland Trees. By H. L. Edlin. Demy 8vo. Pp. ix+182. 133 illustrations. London: B. T. Batsford Ltd., 1944. Price 12s. 6d.

Brenva. By T. Graham Brown. Demy 8vo. Pp. xv+227. 72 photographs. 4 maps. London : J. M. Dent and Sons Ltd., 1944. Price 25s.

British Survey Handbooks. 2. Rumania. By C. Kormos. Fcap. 8vo. Pp. vii+122. Map. Cambridge : University Press, 1944. Price 3s.

British Survey Handbooks. 3. Greece. Compiled by Kathleen Gibberd. Fcap. 8vo. Pp. vii+106. Map. Cambridge : University Press, 1944. Price 3s.

The U.S.S.R. : An Economic and Social Survey. By S. P. Turin, D.Sc. (Econ.). Demy 8vo. Pp. xiii+219. 8 maps, 16 diagrams, 63 statistical tables. London : Methuen and Co. Ltd., 1944. Price 16s.

ASIA

China. By A. G. Wenley and John A. Pope. Med. 8vo. Pp. v+85. 25 plates. 7 sketch maps. 3 figs. Smithsonian Institution War Background Studies No. 20. Washington, D.C. : Smithsonian Institution, 1944.

AUSTRALASIA

Mew Zealand: A Working Democracy. By Walter Nash. Demy 8vo. Pp. vii+290. Frontispiece. 1 map. London : J. M. Dent and Sons Ltd., 1944. Price 8s. 6d.

GEOMORPHOLOGY

Volcanoes as Landscape Forms. By C. A. Cotton. Demy 8vo. Pp. 416. Frontispiece. 223 figs. Christchurch, N.Z., and London : Whitcombe and Tombs Ltd., 1944. Price 32s. 6d.

OCEANOGRAPHY

Pacific Ocean Handbook. By Eliot G. Mears. 7x4 inches. Pp. x+198. 58 figs. 7 maps. Stanford University, California : James Ladd Delkin, 1944. Price $2.00.

EDUCATIONAL

The British Isles : A School Certificate Geography. By S. J. B. Whybrow, B.Sc, F.R.G.S. Crown 8vo. Pp. x+196. 66 sketch maps. 20 photographs. London : J. M. Dent and Sons Ltd., 1944. Price 3s.

GENERAL

International River and Canal Transport. By Brig.‐Gen. Sir Osborne Mance, K.B.E., C.B., C.M.G., D.S.O., assisted by J. E. Wheeler. Demy 8vo. Pp. viii+115. 2 maps. Issued under the auspices of the Royal Institute of International Affairs. London : Oxford University Press, 1944. Price 10s. 6d.

Heresies and Humours. By Major C. S. Jarvis, C.M.G., O.B.E. Demy 8vo. Pp.176. Illustrated by R. A. Young. London : Country Life Ltd., 1943. Price 8s 6d.     

The Role of Fire Disturbance on Runoff and Erosion Processes – a Long‐Term Approach,Mt. Carmel Case Study,Israel

The Mediterranean ecosystem of Mt. Carmel, Israel, is subjected to an increasing number of forest fires of various extents and severities. The impacts of forest fires on runoff and erosion are widely documented and include increased peak flows and soil loss until the return of a vegetation cover. Most studies, however, treat fire as a single event, whereas the present study is aimed at exploring the long‐term effects of repeated forest fires on eco‐geomorphic processes. The study integrates the results of plot‐based, detailed analysis of post‐fire runoff and erosion with vegetation recovery analysis, at a temporal‐spatial scale which includes the effect of reburning. Our results indicate that forest fires lead to a significant increase in runoff and sediment yields, particularly during the first two years following the disturbance, up to five orders of magnitude higher than from the adjacent unburnt control plots.     

A spatial approach to upland vegetation change and human impact: the Aber Valley,Snowdonia

Abstract

Uplands have long been considered important ‘barometers’ for human-environment relationships. Five pollen sequences from the upper Aber Valley (Snowdonia), across an altitudinal gradient, reveal that human impacts have varied temporally on small spatial scales in the region. Woodland taxa persisted into the later Holocene at lower altitudes and sites located at higher altitude reveal a more open landscape history, possibly as a result of increased exposure limiting tree growth at high elevation. Continuous pastoral human land use is evident in the high upland (400 to >600 m AOD) landscape with evidence of clearing, burning and grazing indicators throughout the records covering the last ～6000 years, with increased activity apparent during the last 2000 years. There is no clear evidence to suggest that climate change (e.g. deteriorating climatic conditions from ～850 BC) resulted in land abandonment and it appears more likely that climatic shifts could have led to changes in human land management. The results demonstrate that pastoral land use varied at different altitudes across the Aber Valley upland, and have highlighted the value and potential of high/fine spatial sampling in providing insights into land use history and the mosaic of habitats that result.     

Thousand years of vegetation history revealed by pollen in a sandy soil,central Netherlands

Abstract

Within the scope of an interdisciplinary research project to determine the genesis and age of small clusters of oak trees, three soil sections in and three outside oak clusters in an ancient woodland/heath on the Veluwe, central Netherlands, were sampled for palynological analysis. The sections within the clusters show an undisturbed development from the Medieval period onwards, the sections outside the clusters are missing ca. 15 cm because of sod cutting associated with plaggen soil formation. The rate of downward movement of pollen was established, using known dates from the near surroundings.     

The changing biosphere: recent insights from paleoenvironmental science into drivers,mechanisms and impacts

Paleoenvironmental science has experienced a recent surge in interest and activity as concerns grow over global environmental change. Key research questions in the biotic realm of paleoenvironmental science focus on explaining climatic change at time scales of decades to centuries and understanding ecosystem responses to these changes. Biotic responses are increasingly being studied at smaller spatial scales to identify local factors that determine the sensitivity of a particular system to climatic change. These findings can then be applied to solving a variety of problems, such as setting conservation targets or testing mechanisms for observed climatic and biogeographic phenomena. Research approaches commonly used today include hypothesis testing, which has now become more sophisticated as paleoecologists and paleoclimatologists integrate with modellers. Other frameworks involve the quantitative integration of multiple proxy indicators and the use of extensive publicly available data networks to produce new datasets for paleoclimatic reconstructions and other applications.     

Plants and Vegetation in the Archaeological Park of Neapolis of Syracuse (Sicily,Italy): A Management Effort and also an Opportunity for Better Enjoyment of the Site

Syracuse has been inscribed on the UNESCO World Heritage List since 2005. Notable for its visible traces of the ancient Greek city, the inscribed sites are mainly located on the Ortigia Islet and in the Neapolis Archaeological Park. In this park, in addition to monuments of global significance such as the Greek theatre carved into the rock in the fifth century bc, wild flora of great interest are preserved. Some species may have been introduced in the classical period. In 2013, significant maintenance interventions of green areas were made, aimed at safeguarding the monuments and the most relevant flora present. This activity provided an opportunity to create, through an interdisciplinary project, some guidelines for the management of the green cover, and has also created new opportunities for the use of the site through thematic routes.     

Gardens and the Bush: Gardeners’ Attitudes,Garden Types and Invasives

Garden plants that invade native vegetation can be a threat to native ecosystems. The species composition of gardens near the bush in Hobart, Tasmania, Australia is shown to relate to environmental variation and the attitudes of gardeners to their recreation, to native plants and to the bush. Four types of gardens are discriminated: the species‐poor shrub garden; the local native garden; the woodland garden; and the gardenesque. A group of gardeners who valued functional gardens, and the hard work in creating a garden, largely produced gardenesque outcomes. A strongly conservationist group of gardeners had native, woodland or shrub gardens. A group of gardeners who valued romance and privacy largely had woodland gardens. A small group of gardeners who liked gardens to create themselves, and preferred to minimize the act of gardening, tended to the shrub garden outcome. Plant species that invade the bush are least frequent in the more manicured shrub and gardenesque styles of garden than in the more informal local native and woodland gardens, in a dissonance between expressed attitudes and outcomes. Most of the most invasive weeds in the bush are shown to be independent of their occurrence in adjacent gardens, suggesting that integrated control programs involving both all gardeners within dispersal range, and bush managers, are necessary. The existence of a small number of respondents who see benefits in environmental weeds in their gardens, suggests that such programs would be ineffective without regulation, a solution offered by no respondent. However, regulation might be ineffective without community understanding, the raising of which was the main solution suggested by the interviewed gardeners.