Assessment of Within-Forest Variability in Albeluvisol Quality in an Urban Forest Ecosystem for the Northern Part of the Moscow Megalopolis

2019 ◽  
pp. 133-144
Author(s):  
I. I. Vasenev ◽  
A. A. Avilova ◽  
M. V. Tikhonova ◽  
S. J. Ermakov
Keyword(s):  
Forest Ecosystem ◽  
Urban Forest

scholarly journals Extreme rainfall impacts on soil CO2 efflux in an urban forest ecosystem in Beijing, China

2016 ◽  
Vol 96 (4) ◽  
pp. 504-514 ◽  
Author(s):  
Wenjing Chen ◽  
Xin Jia ◽  
Chunyi Li ◽  
Haiqun Yu ◽  
Jing Xie ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Forest Ecosystem ◽  
Urban Forest ◽  
Extreme Rainfall ◽  
Rainfall Event ◽  
Extreme Rainfall Event ◽  
Co2 Efflux ◽  
Abrupt Decrease ◽  
Environmental Controls ◽  
Beijing China

Extreme rainfall events are infrequent disturbances that affect urban environments and soil respiration (Rs). Using data measured in an urban forest ecosystem in Beijing, China, we examined the link between gross primary production (GPP) and soil respiration on a diurnal scale during an extreme rainfall event (i.e., the “21 July 2012 event”), and we examined diel and seasonal environmental controls on Rs. Over the seasonal cycle, Rs increased exponentially with soil temperature (Ts). In addition, Rs was hyperbolically related to soil volumetric water content (VWC), increasing with VWC below a threshold of 0.17 m3 m−3, and then decreasing with further increases in VWC. Following the extreme rainfall event (177 mm), Rs showed an abrupt decrease and then maintained a low value of ∼0.3 μmol m−2 s−1 for about 8 h as soil VWC reached the field capacity (0.34 m3 m−3). Rs became decoupled from Ts and increased very slowly, while GPP showed a greater increase. A bivariate Q10-hyperbolical model, which incorporates both Ts and VWC effects, better fits Rs than the Q10 model in summer but not for whole year.

Absorption Ability of Different Tree Species to S, Cl and Heavy Metals in Urban Forest Ecosystem

2012 ◽  
Vol 518-523 ◽  
pp. 48-53 ◽  
Author(s):  
Zhi Ping Fan ◽  
Qiong Wang ◽  
Fa Yun Li ◽  
Xue Kai Sun
Keyword(s):  
Heavy Metals ◽  
Forest Ecosystem ◽  
Tree Species ◽  
Urban Forest ◽  
Pollutant Concentrations ◽  
Malus Pumila Mill ◽  
Pinus Bungeana ◽  
Atmosphere Pollution ◽  
Buxus Microphylla ◽  
Salix Babylonica

Heavy metals and atmosphere pollutants that caused the soil pollution and low air quality are main environmental problems in cities which located in the industrialized regions. Different tree species in urban forest ecosystem have absorption ability to heavy metals in the soil and atmosphere pollutant and ameliorate environmental pollution. However, the influence of different tree species on the absorption ability of different pollutant is not yet clear, and this held up selection suitable tree species in urban forest plantations to improve urban environment. In the study we compered pollution absorption ability of 13 tree species in Shenyang, Northeast China. The results showed that, the adsorption capacity of different tree species on pollutants are different. The highest value of Cu was 9.32 mg kg-1 found in Berberisthumbergii cv. Atropurpurea, Zn was 51.461 mg kg-1 in Pinus bungeana, Pb was 7.459 mg kg-1 in Malus pumila Mill, Cr was 9.841 mg kg-1 in Buxus microphylla, S was 8916.07 mg kg-1 in Salix babylonica, Zn was 4678.388 mg kg-1 in Buxus microphylla. Pollutant concentrations in the same plant species are different in 3 different sample sites. This indicate the contaminated degree of 3 sample sites were different. In our study, Huigong square pollution degree is serious than the Beiling Park and Huishan ecological park. Significant correlation was found between Cu and Cr, Cu and Cl, S and Zn, Cr and Cl (P<0.01) and that between Cu and Zn, Cu and Pb at 0.05 level. The relationship between heavy metals and atmosphere pollutant (S and Cl) indicated that traffic activities could be one of the dominant roles of heavy metal and atmosphere pollution in Shenyang City.

The assessment of degradation to sustainability in an urban forest ecosystem by GIS

2017 ◽  
Vol 27 ◽  
pp. 383-389 ◽  
Author(s):  
J. Feghhi ◽  
S. Teimouri ◽  
M.F. Makhdoum ◽  
Y. Erfanifard ◽  
N. Abbaszadeh Tehrani
Keyword(s):  
Forest Ecosystem ◽  
Urban Forest

Neighbourhood-scale urban forest ecosystem classification

2015 ◽  
Vol 163 ◽  
pp. 134-145 ◽  
Author(s):  
James W.N. Steenberg ◽  
Andrew A. Millward ◽  
Peter N. Duinker ◽  
David J. Nowak ◽  
Pamela J. Robinson
Keyword(s):  
Forest Ecosystem ◽  
Urban Forest ◽  
Ecosystem Classification ◽  
Neighbourhood Scale

scholarly journals ANALYSIS OF URBAN FOREST CARBON SEQUESTRATION CAPACITY: A CASE STUDY OF ZENGDU, SUIZHOU

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 1423-1426
Author(s):  
X. Yu ◽  
H. Wang ◽  
W. Cai ◽  
Y. Han
Keyword(s):  
Carbon Sequestration ◽  
Forest Ecosystem ◽  
Urban Forest ◽  
Management Strategies ◽  
Tree Cover ◽  
Forest Land ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Forest Carbon Sequestration ◽  
Major Factors

Carbon-fixing and oxygen-releasing is an important content of forest ecosystem serving in city. Analysis of forest ecosystem carbon sequestration capacity can provide scientific reference for urban forest management strategies. Taking Zengdu of Suizhou as an example, CITYGREEN model was applied to calculate the carbon sequestration benefits of urban forest ecosystem in this paper. And the carbon sequestration potential of urban forest ecosystem following the returning of farmland to forest land is also evaluated. The results show that forest area, percent tree cover, and the structure of forest land were the major factors reflecting regional carbon sequestration capacity.

scholarly journals Plant landscape planning and design of Nanshan Botanical Garden (China) based on forest ecological garden

2018 ◽  
Vol 68 (1) ◽  
pp. 25-32
Author(s):  
Ren Wang
Keyword(s):  
Forest Ecosystem ◽  
Urban Forest ◽  
Landscape Planning ◽  
Comprehensive Evaluation ◽  
Rapid Development ◽  
Terrestrial Ecosystems ◽  
Botanical Garden ◽  
Planning And Design ◽  
Vegetation Landscape ◽  
Hierarchy Analysis

Abstract In recent years, with the rapid development of human civilization, a variety of environmental problems have emerged. As the most important natural ecological system of terrestrial ecosystems, forest ecosystem plays a significant role in protecting the environment and beautifying cities. The landscape planning and design of botanical gardens is of great significance to the maintenance of the urban forest ecosystem. Taking the Nanshan botanical garden as the research object, this paper analysed the present situation of the garden and carried out the vegetation landscape planning transformation on it from the perspective of landscape ecology. Then, the landscape hierarchy analysis method was used to evaluate the landscape after the transformation, the results of which suggested that the comprehensive evaluation of the garden was the highest when the plant landscape was diversified and the structure level was reasonable, which provided a reference for the optimization of the urban forest ecosystem.

The Effects of Soil-Ecological Factors on the Pb Migration in the Soil of Urban Forest Ecosystem

2017 ◽  
pp. 99-105 ◽  
Author(s):  
Elvira Anvarbekovna Dovletyarova ◽  
Lyudmila Vladimirovna Mosina ◽  
Ramilla Adim kizi Hajiaghayeva ◽  
Nailya Vafaevna Aliyeva ◽  
Vadim Gennadyevich Plyuschikov
Keyword(s):  
Forest Ecosystem ◽  
Urban Forest ◽  
Ecological Factors
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