Original-Ecology Sounds of Cities’ Impression

Author(s):  
Lie Zhang ◽  
Jin Huang
Keyword(s):  
1987 ◽  
Vol 124 (1) ◽  
pp. 43-66 ◽  
Author(s):  
Gillian M. Rex ◽  
Andrew C. Scott

AbstractThe Lower Carboniferous (Asbian) sediments and volcanics of the Pettycur region in Fife, Scotland, yield several important anatomically preserved floras including that from the famous ‘Pettycur Limestone’. The plant fossils are preserved as calcareous permineralizations and fusain within limestone blocks which occur at the base of basaltic lava flows or within pyroclastic sequences. The geology and sedimentology of these plant deposits have been investigated, and it is demonstrated that a number of plant-bearing facies can be recognized which reflect different modes of transport, deposition and fossilization. Of these facies the ‘Pettycur Limestone’ is the most well known. The lithology is composed of a distinct assemblage dominated by lycopods and the pteridosperm, Heterangium. Other assemblages include a limestone dominated by zygopterid ferns which are frequently fusainized and the Kingswood Limestone which contains a completely different flora to that at Pettycur, being dominated by pteridosperms, other gymnosperms and the lycopod Oxroadia. Each sediment type is characterized by a distinct mineralization history of the plants reflecting different sites of fossilization.A hypothesis concerning the original ecology of the plant assemblages within the basaltic volcanic terrain is proposed. It is suggested that the Pettycur Limestone represents an established original peat within which the plants were permineralized. The zygopterid ferns occupied sites which were susceptible to wildfire and did not establish long-lived peat-forming communities. The Kingswood flora was established in a region where plants were prone to fire and then subsequently transported into an area of limestone deposition along with unburnt plant fragments. This flora was separated by space and/or time from the Pettycur floras. Lakes developed on lava surfaces and provided sites of fossilization for plant fragments as compressions.


2012 ◽  
Vol 550-553 ◽  
pp. 2546-2550
Author(s):  
Wei Wei Guo ◽  
Shao Min Du ◽  
Yong Quan Sun ◽  
Di Wang

In the fieldwork in the Great Khingan Mountains, it is practical and easy to distinguish permafrost region or talik region by analyzing the characteristics of the plants growing on them. Generally speaking, permafrost there tends to degenerate from south to north, but there are some individual places where remind original ecology of permafrost. After permafrost degenerate into the talik region, the condition of plant growth has changed. We can distinguish permafrost and talik region by the difference of plants growing status there. Some common species that specifically grow in permafrost or talik region have also been listed and introduced in this paper. Specifically, plants growing in permafrost region include larix gmelini, birch, vaccinium uliginosum, ledum palustre, vaccinium vitis-idaea, bilberry, pinus sylvestnis var. mongolica litv, low birch thicket, adina racemosa and so on. Meanwhile the plants live in talik region include peridium aquilinum, xylosma racemosum, daylily, milkvetch. The list of plants can be used to distinguish permafrost region and talik in the field. It is crucial for constructions to recognize if the construction area is permafrost or talik region. The change of talik has its two sides to constructions. On the upside, it can increase groundwater storage, and we can regard the future projects as thawing projects. On the downside, existing projects would arise thawing settlement.


2005 ◽  
Vol 77 (3) ◽  
pp. 431-436 ◽  
Author(s):  
François Noireau ◽  
Ana L. Carbajal-de-la-Fuente ◽  
Catarina M. Lopes ◽  
Lileia Diotaiuti

Observations on the ecology of silvatic Triatominae are still fragmentary, principally because target species in control process are almost exclusively domestic. Report of silvatic species invading human dwellings must lead research to be focused on their original ecology, in order to assist in understanding their process of domestication and devising strategies for surveillance.


2022 ◽  
Vol 2022 ◽  
pp. 1-6
Author(s):  
Xi Wu ◽  
Shuying Qiao ◽  
Qiongqiong Tan

Analytic hierarchy process (AHP) refers to a decision-making method that decomposes the elements related to decision-making into goals, criteria, plans, and other levels and performs qualitative and quantitative analysis. Ecotourism is one component of sustainable tourism. Due to ecotourism activity, ecotourism links the reserved area with local residents and tourists. The aim of this research is to identify the proper ecotourism activity in Diaoluo Mountain National Nature Reserve with the help of the AHP method. The motivation behind the use of AHP is its widespread use in the decision-making process of selection of suitable candidate or alternative spot for tourists’ activity in the domain of ecotourism. The result shows that the most suitable ecotourism activity is “visit and experience life in the original ecology villages of Li and Miao ethnic minorities with a guide.” The proposed AHP decision-making method has effectively been used to select ecotourism activity based on multiple criteria evaluations.


2021 ◽  
Vol 95 ◽  
pp. 102919
Author(s):  
Jiandong Lu ◽  
Xiaolei Wang ◽  
Zheng Dai ◽  
Guo Chen ◽  
Yuqiang Feng

2014 ◽  
Vol 1065-1069 ◽  
pp. 2657-2660
Author(s):  
Man Yi Wang ◽  
Ran Wang ◽  
Xin Wang

Currently tourism, regeneration and reconstruction occur in the ancient city protection and gets hot, so protection of the ancient city becomes a research focus. This article regards the ancient city as a big ecosystem including old buildings, layout idea and cultural customs after analysis of a large number of cases. As people redefine the residency requirements, the original ecology of the ancient city has been difficult to meet the requirements of people in functionality, safety, convenience and other aspects. How to enhance the adaptability of the ancient city? For example, it needs to meet the requirements of modern society development, to adapt to the needs of modern people's lives, to adapt to the modern climate characteristics.


2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Syuichi Tokunaga ◽  
Hiroshi Sameshima ◽  
Tsuyomu Ikenoue

Objective. Ecology model is useful to provide a framework for organizing medical care. We aimed to see if the ecology model is applicable to perinatal care in Japan.Methods. On a population-based approach, we had 53,461 deliveries in Miyazaki from 2001 to 2005. In comparison, we used all of the 106,613 deliveries in Tokyo in 2009. Women were divided into 4 grades by risk-allocation criteria and their proportion was expressed per 1,000 women to apply to the model and to delineate the ecology curve. The perinatal mortality was compared by Chi-square test.Results. We found remarkable similarity in ecology curves between the original ecology models and that representing Miyazaki perinatal data. However, the curve representing Tokyo was different from the original one. Besides, the perinatal mortality was significantly lower in Miyazaki (4.40/1,000) than in Tokyo (5.06/1,000).Conclusion. Applying the ecology model to perinatal care is useful with improvement of perinatal outcome and it would provide an appropriate framework for organizing perinatal care.


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