搜索结果: 1-15 共查到“知识库 农学 URBAN”相关记录74条 . 查询时间(0.078 秒)
Unmanned aerial vehicle based measurement of urban forests
Allometry Lidar Structure from motion Unmanned aerial vehicles
2024/1/19
Urban forests are dynamic and change in response to both human and natural forces. To effectively monitor and manage urban forests, periodic inventories are needed to ensure that information about the...
Effects of Urban Forest Types and Traits on Soil Organic Carbon Stock in Beijing
forest types forest traits partial least squares regression soil organic carbon urban forest
2023/12/21
Forests can affect soil organic carbon (SOC) quality and distribution through forest types and traits. However, much less is known about the influence of urban forests on SOC, especially in the effect...
Intraday Variation Mapping of Population Age Structure via Urban-Functional-Region-Based Scaling
age structure urban functional regions temporal scaling factor dasymetric model RF-RFE algorithm intraday variation map
2023/12/6
The spatial distribution of the population is uneven?for various reasons, such as urban-rural differences and geographical conditions differences. As the basic element of the natural structure of the ...
The Utility of Sentinel-2 Spectral Data in Quantifying Above-Ground Carbon Stock in an Urban Reforested Landscape
reforestation ecosystem services carbon stock random forest
2023/12/5
The transformation of the natural landscape into an impervious surface due to urbanization has often been considered an important driver of environmental change, affecting essential urban ecological p...
Identification of Urban Green Space Types and Estimation of Above-Ground Biomass Using Sentinel-1 and Sentinel-2 Data
urban green space above-ground biomass classification Sentinel-2 Sentinel-1
2023/12/1
High-quality urban green space supports the healthy functioning of urban ecosystems. This study aimed to rapidly assess the distribution, and accurately estimate the above-ground biomass, of urban gre...
Abnormal Litter Induced by Typhoon Disturbances Had Higher Rates of Mass Loss and Carbon Release than Physiological Litter in Coastal Subtropical Urban Forest Ecosystems
abnormal litter carbon cycle coastal urban forest litter decomposition physiological litter tropical cyclones
2023/11/22
The decomposition of abnormal litter caused by extreme weather events might play an increasingly important role in carbon and nutrient cycling in forest ecosystems under climate change scenarios, whic...
Differential Responses of Soil Respiration and Its Components to Nitrogen Application in Urban Forests
urban forest nitrogen application autotrophic respiration heterotrophic respiration soil respiration
2023/11/21
Understanding the impacts of nitrogen (N) deposition on soil respiration (Rs) and its components (autotrophic respiration (Ra) and heterotrophic respiration (Rh)) in urban forests is crucial for predi...
Using Count Data Models to Predict Epiphytic Bryophyte Recruitment in Schima superba Gardn. et Champ. Plantations in Urban Forests
mosses colonization afforestation Poisson negative binomial
2024/2/5
Epiphytic bryophytes are known to perform essential ecosystem functions, but their sensitivity to environmental quality and change makes their survival and development vulnerable to global changes, es...
Growth of Abies sachalinensis Along an Urban Gradient Affected by Environmental Pollution in Sapporo, Japan
air pollution climate change implications oxides urbanity tree growth
2024/3/4
Urban tree growth is often affected by reduced water availability, higher temperatures, small and compacted planting pits, as well as high nutrient and pollution inputs. Despite these hindering growth...
MAPPING OF HIGHLY HETEROGENEOUS URBAN STRUCTURE TYPE FOR FLOOD VULNERABILITY ASSESSMENT
Urban Structure Type Object-based image analysis Random forest Support vector machine CART Flood vulnerability
2018/11/9
Vulnerability plays an important role in risk assessment. For flood vulnerability assessment, the map and characteristics of elements-at-risk at different scales are strongly required depending on the...
INVESTIGATION OF URBAN GROWTH EFFECTS ON FOREST AREA BY CREATING DIFFERENT SIMULATION SCENARIOS
Simulation Cadastre GIS Urban Growth
2018/4/18
It is necessary to keep urban growth under control according to the understanding of sustainable urban management in rapidly growing cities. In other words, sustainable urban management requires estim...
INVESTIGATION OF URBAN GROWTH EFFECTS ON FOREST AREA BY CREATING DIFFERENT SIMULATION SCENARIOS
Simulation Cadastre GIS Urban Growth
2018/5/8
It is necessary to keep urban growth under control according to the understanding of sustainable urban management in rapidly growing cities. In other words, sustainable urban management requires estim...
Phytoseiid mites on Quercus cerris in an urban park – short communication
Phytoseiidae Acari turkey oak species diversity host plant
2017/6/26
The community of phytoseiid mites on the leaves of non-indigenous Quercus cerris was studied in an intensively managed urban park during the years 2012–2014. Five phytoseiid species, namely Kampimodro...
DATA AND TECHNIQUES FOR STUDYING THE URBAN HEAT ISLAND EFFECT IN JOHANNESBURG
Urban Heat Island Remote Sensing Thermal Infrared
2015/5/6
The city of Johannesburg contains over 10 million trees and is often referred to as an urban forest. The intra-urban spatial variability of the levels of vegetation across Johannesburg’s residential ...
Urban soil contamination by potentially risk elements
contamination risk elements soil urban park
2015/3/3
A high displacement of inhabitants into large towns, presence of industry, and constantly growing traffic have a high impact on the environment and considerable exposure of human health to environment...