Y.-M. Hu's research while affiliated with Chinese Academy of Sciences and other places

Publications (71)

Article
In order to solve the problems of water ecology, water security and water environment in the process of urbanization, sponge city, the new urban storm water management concept, was put forward based on the low impact development (LID). The Chicago rain type formula and Shenyang rainfall intensity formula were used to form Shenyang rainfall process...
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It is theoretically and practically important to explore suitable habitat distribution of the Cervids for relieving the confliction between small-scale human management and large-scale habitat conservation in a human-disturbed forest landscape. Using the present locations of Cervids (n=196) observed in field investigations in 2013, 2014 and 2015, w...
Article
Permafrost is extremely sensitive to climate change. In particular, aboveground vegetation on permafrost has great sensitivity to the change. The permafrost zone of Northeast China, within middle and high latitudes of the Northern Hemisphere, is the second-largest region of permafrost in China. It is at the southern edge of the Eurasian cryolitho z...
Article
The proportion of urban non-point source (NPS) pollution in watershed NPS pollution is increasing with urbanization. Urban NPS pollution is becoming research hotspot. In this study, rainfall-runoff model was validated in a typical housing estate of Shenyang based on the measured data with the distributed hydrological model method (SWMM) to analyze...
Article
China is in the process of rapid urbanization and urban renewal. The research of urban expansion has mostly focused on the border expansion, while that of the pattern changes caused by the internal transformation of the city is insufficient. With the aid of remote sensing and GIS technology, this paper analyzed the characterization of landscape cha...
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Forest fire is an important natural disturbance in forest ecosystems. It releases the carbon sequestrated by forest ecosystems into atmosphere directly or indirectly, affecting carbon budget and carbon balance of forest ecosystems. Therefore, accurate estimate of carbon emissions by forest fires has great significance for scientifically making effe...
Article
Studies on urban three-dimensional landscape are helpful to the development of landscape ecology at three-dimensional scale, which can provide the scientific support for urban planning. Three-dimensional information of buildings in Shenyang City was extracted from QuickBird imageries. Five indexes (average building height, landscape height standard...
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The effect of national or local polices on landscape pattern change is the current research focus. This study discussed the landscape pattern change in coastal regions of Liaoning Province following the policy of “five-point and one line”. Through using transition matrix and landscape metrics, this paper studied the change of landscape pattern of c...
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Environmental issue has received more attentions with development of the society and economy. Recently, ecosystem health assessment has been considered as a hot topic in the field of ecological environment. In this paper, we took the Yellow Sea and Bohai coastal areas, covering 131 counties, as the study area, and evaluated health level in each cou...
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Determining factors that affect the spatial distribution pattern of wildfires has significant implications for wildfire prediction and fire risk zonation, and could also provide scientific basis for making rational wildfire management decisions as well. We chose five factors including annual average temperature, mean annual precipitation, elevation...
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Forest fire plays a vital role in the succession of forest ecosystems, and determines species composition, structure stability and species diversity in the forest ecosystems. In this study, we investigated the understory vegetation of Larix gmelinii - Betula platyphylla forests in Daxing' anling Mountains, and analyzed the recovery process of burne...
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Recently, China has entered into a developmental stage of rapid urbanization, and cities have been expanding rapidly with increasing number of skyscrapers. Consequently, the interactions between cities and their surrounding environments have become more complex. Thus, developing theory and method of three-dimensional landscape pattern dynamics and...
Article
In recent decades, urban areas in China have been rapidly increasing. This urban area expansion has caused land use changes, which have enormous infuences on regional ecosystems. The potential environmental problems caused by urban expansion have attracted extensive attention from researchers. Net primary productivity (NPP) is the amount of solar e...
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The Great Xing' an Mountains is one of the most important regions with abundant forest resources. Its large amounts of forest biomass and carbon stocks have significant implications for maintaining the carbon balance of Northeast China. Based on field investigation data, the forest biomass and its allocation characteristics as well as the quantitat...
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Wildfire is an important disturbance factor in natural ecosystems, posing great threats to people’s lives and properties while maintaining natural ecosystem diversity. Studying the spatial and temporal patterns of wildfires will help to understand the patterns of wildfire occurrence and thus provide the scientific basis for wildfire management. In...
Article
Rainfall runoff, the main driving force of pollutant migration, is the hotspot of urban non-point source pollution researches. Shenyang, a typical city of northeast China, was chosen as a case study. Discharge characteristics of ten main pollutants (TSS, TN, TP, COD, Cd, Pb, Cr, Cu, Ni and Zn) were analyzed in different underlying surfaces, includi...
Article
Sensitivity analysis is a crucial procedure for parameter identification. The parameter sensitivity of hydrological and contaminated modules in Storm Water Management Model (SWMM) was evaluated with three different intensities of rainfall based on the Morris screening method. The results showed that the descending order of parameter sensitivity to...
Article
The rapid relentless urban area expansion has led to a series of problems in China. Many researches focused on this issue in recent years. Driving forces are the core topic in urban expansion,as well as the basic component of modeling and predicting. It is very useful and meaningful to analyze the driving force of urban expansion, which may provide...
Article
Urban non-point pollution is a new issue appeared with rapid urbanization, which mainly comes from city industrial emission, fossil fuel burning, vehicle exhaust, and soil erosion, etc., and seriously endangers the safety of urban water quality and ecosystem through the flush of storm runoff into urban waters. This paper elucidated the connotations...
Article
As urbanization progresses, urban land use changes, leading to an increase in the area of impervious surfaces and, as a consequence, increases in runoff volume and peak flow rates. Studies have shown that urban stormwater runoff contains a variety of pollutants, such as sediment, organic material, micro-organisms, nutrients and heavy metals, which...
Article
Landscape dynamics is one of the core areas in landscape ecology study, and also, the basis of relevant ecological and environmental researches. In this paper, the changes of the landscape pattern in Tieling City of Liaoning Province in 2002-2011 were comprehensively studied by using traditional spatial statistical analysis, transition matrix, land...
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Based on the forest map of Huzhong Forestry Bureau and by the method of point pattern analysis, this paper analyzed the spatial patterns of forest landscapes and the associations among different forest landscape types in Huzhong of the Great Xing'an Mountains. In the study area, coniferous forest had an aggregated distribution at 0-25 km scale, bro...
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Researchers and managers are increasingly interested in spatially explicit fire models that can simulate fire spread processes at large spatial and temporal scales for use in fire management, planning, and scientific analyses. Fire Area Simulator (FARSITE) is a spatially explicit model based on thermal physics, combustion science, and empirical the...
Article
Land use model plays an important role in analyzing, simulating, and predicting landscape pattern and ecological process. Taking central Liaoning urban agglomerations as a case, this paper explored the application of land use model CLUE-S in the regional planning of urban agglomerations, and, based on the analysis of the landscape pattern and the d...
Article
To study the factors affecting the changes of three-dimensional urban architectural landscape is of guiding significance for the rational distribution and adjustment of future urban landscape. By using buffer belt analysis method, this paper studied the influence of location factors on the changes of three-dimensional architectural landscape in Tie...
Article
By using a spatially explicit landscape model (LANDIS), we simulated the long-term (within 300 years) dynamics of forest fire regime under four scenarios of harvesting modes, i.e., no cutting, clear cutting, gradual cutting and selective cutting, in the Huzhong Forest Region in Da Xing'an Ling Mountains.Results show that forest harvesting could dec...
Article
Permafrost wetlands are one of the most sensitive plant communities in response to global warming. Global warming could induce natural plant communities to shift into cooler climate zones, or extirpate. To understand how plant communities in permafrost wetlands are affected by global warming, we examined the patterns of plant species diversity in t...
Article
Based on the 2009 Quickbird satellite image and the GIS spatial analysis techniques, we selected land use degree index and landscape pattern metrics, combining with gradient analysis, to study the land use intensity and landscape structure change of urban-rural gradient in a typical town (Xinzhuang town) of south Jiangsu. The results showed that in...
Article
To study the spatiotemporal variation characteristics of urban architecture landscape is of significance in the reasonable adjustment of urban planning. In this paper, the buildings' three-dimension information of Tiexi District, Shenyang was extracted by using Barista software and GIS and RS techniques, and the spatiotemporal variation characteris...
Article
Rocky desertification is one of the eco-geological disasters widely distributed in karst areas of Southwest China, and one of the hotspots and difficulties in ecology and environmental sciences. From the viewpoints of landscape ecology, and with the help of Erdas 9. 1 and ArcGIS 9? 0, a case study was made in the Puding County of Guizhou Province,...
Article
By using correlation analysis, canonical correspondence analysis (CCA), and twoway indicative species analysis (TWINSPAJV), this paper analyzed the relationships of Arctium lappa community distribution and species composition with eco-environmental factors. No significant correlations were observed between the importance value of A. lappa and eco-e...
Article
To explore distribution of potential rocky desertification and their relationship with topographic factors, the middle and lower reaches of the Houzhai subsurface stream in Puding County was chosen as a study area. With the aid of GIS software, the 2004 potential rocky desertification distribution map was studied to analyze quantitatively correlati...
Article
An investigation was made on the ecological characteristics and areal types of the plants in 24 permafrost wetlands in the Great Hing-an Mountains. There were 201 plant species, belonging to 40 families and 121 genera. The species of Compositae and Rosaceae were dominant, occupying 26-8% of the total. In five life forms, hemicryptophytes occupied 7...
Article
A new method to construct the forest landscape visualization system was discussed based on three data sources, which was Digital Elevation Model (DEM), Remote Sensing data and Forest Form Map, and combining the advanced development of GIS and VRML to realize the forest landscape visualization using the technique of landscape visualization, shortene...
Article
With the help of digital elevation model and geographic information system, five indicators of cost data, including slope, aspect, relief, relative distance of existing tourism roads, and relative distance of existing view points, were selected to evaluate the land suitability of Houshi National Forest Park in Xinbin of Fushun City. An integrated s...
Article
By the method of time series analysis, the evapotranspiration of reference vegetation in the small watersheds of continuous permafrost on the northern slope of Great Hing'an Mountains was approached. The results showed that the evapotranspiration of the reference vegetation, ETo, had an obvious periodic fluctuation within a year, i.e., from relativ...
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Model simulation is an important approach in ecological studies when actual field experiments are unfeasible. Predicting future land use under different scenarios using land use models is necessary to assist land use planning and policy making. However, many studies failed to analyze the predicting ability in temporal scales, which may have incorre...
Article
The mires in northern Great Khing'an mountains are particular with high latitudes and high altitudes. A Logistic regression model is developed to analyze the relationship between mire distributions and 18 eco-factors (including 11 topographic and 7 climate factors). The future potential distributions of mires are predicted under CGCM3, and the land...
Article
Based on field investigation and geographic information system technology, the land use change in Wenchuan County of Sichuan Province from 1974 to 2000 was analyzed, and the habitat suitability for wild animals was evaluated by using habitat suitability model, with the change causes of suitable habitat analyzed. The results showed that from 1974 to...
Article
Based on emergy theory and its analysis approach, and by using statistical and field survey data, the eco-economic system in Wenchuan County of Sichuan Province in 1982-2002 was analyzed. The results showed that this County had a poorer economic level and a smaller economic size. The input of emergy mainly came from renewable resources; while the o...
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This paper introduced the concept of landscape visualization, gave retrospection of its advance course, presented the visualization methods of main landscape elements such as topography, vegetation, water body, artificial structure (architectures and infrastructures, etc.), animals (including human), atmosphere and light, and elaborated the applica...
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Forest surface dead fuel is the most important factor arousing forest fire. To understand the distribution of forest surface dead fuel load is of significance for forest fire prevention and fuel management. In this study, the forest region of Huzhong in Daxing'anling was selected as study area, and the load distribution of surface fuel in different...
Article
Spatial pattern and processes are two most important aspects of landscape ecological study. Compared with patch-based studies, boundary-based studies provide new perspectives in understanding landscape processes. We analyzed data from TM image, forest stand map, land use map and field investigation using GIS, RS, and Fragstats software. With an exa...
Article
Taking the marshes, marsh-meadows and meadows in Great Hing'an Mountains as test objects, and selecting landform factors (altitude, slope, slope position, compound topographic index and irradiation slope direction), hydrological factors (distances to rivers and lakes), and climate factors (annual average temperature and annual precipitation) as pot...
Article
MODIS is one source of remote sensing images which is often used in the study of regional land cover recently. In order to overcome the restrictions of limited spatial resolution, the abstracting models make use of multi-temporary data and topography data. Logistic model is a nonlinear regression analysis model. It is usually used to forecast and c...
Article
Taking the Huzhong National Reserve in Great Hing' an Mountain as test object and by the methods of multiple comparison and correlation analysis, this paper studied the thickness of permafrost's active layer in the Reserve and related affecting factors. The results indicated that the thickness of the active layer had complicated relationships with...
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Ecological footprint approach is an effective means for quantitatively measuring sustainable development degree. By using the conventional ecological footprint approach and its modification, 'actual land demand approach', and combining with remote sensing (RS) and geographic information system (GIS) techniques, this paper analyzed the dynamics of s...
Article
Based on the differences of physical geography, the forest in the upper reaches of Minjiang River was divided into four types, i. e., dark coniferous forest, other coniferous forests, broadleaf forest, and shrubbery. The benefits of water conservation by these forest types were calculated by using relevant indicators such as annual rainfall, crown...
Article
We studied the landscape change of Songpan County based on the RS images. Not only the conventional landscape index method was taken, but also Kappa coefficient was chosen to study landscape change. The results indicate the landscape fragmentation kept slow increasing, and the nature patches are still landscape matrix. The results of Kappa indices...
Article
The study based on GIS and RS showed that from 1974 to 2000, the area of dry valley in the upper reaches of Minjiang River increased continuously. Shrub land occupied > 60% of the total, being the landscape matrix. Among the landscape types, cropland had the greatest change in its proportion. The whole figure of the dry valley was relatively simple...
Article
Based on the change patterns of 6-period urban configuration in Shenyang City from 1956 to 2004 and their cause analysis, 6 ecological factors including geomorphology, land sinking, water body (river system and paddy field), forestland, basic farmland, and soil pollution were selected to divide the spatial extension of Shenyang City into preferred,...
Article
The urban growth pattern and its influential factors in Shenyang from 1988 to 2004 are analyzed and simulated by combing remote sensing, GIS, and spatial logistic regression method. These results show that the major determinants are the construction of economic development zones, the transfer of administrative system, the distribution of urban cent...
Article
By using the 1988 - 2002 data of annual mean precipitation and evapotranspiration in the Heishui River basin of Minjiang River upper reach, and with the help of GIS, a comparison was made on the annual mean runoff coefficient of the watersheds with different landscape structure in the Heishui River basin. The results showed that the magnitude of th...
Article
In order to explore the impact of climate change on the larch species of northeastern China, this paper predicted the potential distribution of three Larch species current and future by logistic regression model and GIS. Result show that dahurian larch will retreat northwestward 200 kilometers, and retreat northwestward more than 300 km in 2100yr....
Article
The catastrophic forest fire on the northern slope of Great Hing'an Mountains in 1987 greatly affects the ecological environment. Wetland, as one of the important attributes, is very sensitive to the environment change. The Yuying and Fendou farms administered by Tuqiang Forestry Bureau, one of the mainly burned area in 1987 fire, are selected as t...
Article
Permafrost near earth surface is an important part of terrestrial ecosystem, and its research is a special concern of ecologists, hydrologists and engineers. Climate change plays a significant role on permafrost, being an indispensable part of the permafrost research at home and abroad. At the same time, the study on the hydrological and ecological...
Article
City is a spatial synthesis which consists of various buildings and urban opening space. With the developing of the urbanization, the urban planning will directly influence the sustainable development of a city, and the optimization of the urban zone pattern is the main section of the urban planning. The urban opening space is the main part of the...
Article
Hydrological condition and terrain are the key factors to generate the wetland, besides permafrost. The Yuying and Fendou farms are located in Tuqiang forestry bureau, which is one of the mainly burned area in 1987 fire, were selected as the study area to reveal the wetland pattern change after 1987 catastrophic fire, the restoration of regulating...
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Based on the three techniques (GIS, RS, GPS), the landscape change was studied from 1974 to 2000 in the upper reaches of Min River. The results show that the landscape in the study area was fragmented year by year. Forestland was the only decreasing landscape type. The area of grassland, shrubland, economic forest, cropland, and built-up land incre...
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Numerous landscape metrics have been developed during last three decades to describe and quantify complex landscape patterns and link landscape patterns and ecological processes. This generates a great deal correlated and redundant information if all of the indices were calculated. Thus, it is necessary to identify the correlated landscape metrics...
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To analyze the landscape change of city groups in central Liaoning Province, we classified the remote sensing images of 1988 and 1998 into 12 cover types., The transformation matrix between each two stages was created in GIS (Geographical Information System). Marsh disappeared from the landscape and reed fields showed a declining trend (only remain...
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Ecological restoration is widely employed from tens to millions of hectares in space, and from tens of days to thousands of years in time, which forces consideration of it thoroughly. We argue that three questions are the most important among the contents relevant of ecological restoration, including why, what and how to restore degraded systems. W...
Article
The effect of spatial pattern on the nutrient reduction is investigated based on the spatial simulation model designed for the estuary wetland of Liaohe Delta. Four scenarios are designed to test the effect of different landscape patterns on the nutrient reduction in the reed marsh: Canal density, reed area size, reed area shrinking pattern, and pu...
Article
Behavioral fragmentation of wildlife habitat is discussed. Using 'buffer' module in ARC/INFO, behavioral fragmentation habitat of Red-crowned crane, Saunder's gull, Oriental white stork and Siberian white crane was calculated in the Shuangtai-hekou National Reserve, Liaoning Province, China. The result showed that breeding Red-crowned crane, Siberi...

Citations

... Jemberie & Melesse (2021) verified that combined LID facilities have a significant effect of up to 75% on urban flood mitigation. Li et al. (2017) used SWMM to simulate and analyze the hydrologic and water quality process of three scenarios before urbanization, after urbanization, and after LID measures. The results showed that with the increase in rainfall return period, the runoff reduced by LID gradually increases, and water pollution is effectively controlled. ...
... Affected by the hydrogeological conditions and the stable temperature inversion layer which is widely distributed on the underlying surface of the atmosphere, permafrost in Northeast China generally develops in mountain depressions, valley terraces, and swamp areas covered by peat layers. The surface covering with vegetation (mosses, grass, or forest) have a significant impact on the hydrothermal process and spatial distribution of permafrost [46,47]. ...
... Forest fires in the Greater Hinggan Mountains have been analyzed in a seasonal manner, with spring season from March to June, summer season from July to August, and fall season starting in September and generally lasting to October when it begins to snow [17]. Moreover, extremely large fires, sometimes named mega fires, are catastrophic and their impacts to the landscape are complex and far reaching [18]. ...
... Forest fires, one of the most important disturbances of forests, not only directly transform live and dead pools, but also result in carbon emissions via combustion. Over 300 million ha of forests is burned globally and emits 2078-2460 Tg carbon each year (Chang et al. 2015;Andela et al. 2017;Luo 2020), with an average of 2200 Tg . Several studies suggest that inaccurate estimation of carbon emissions released by forest fires accounts for a large portion of the uncertainty in carbon budgets for forest ecosystems (French 2004;Kasischke and Johnstone 2005;Flannigan et al. 2009;Meigs et al. 2009). ...
... In most cases, urban expansion destroys the surrounding natural and agricultural landscape patterns and ecological processes [2], breaking the original balance. Therefore, the construction of an ecological security pattern with the goal of ensuring ecological security has become a problem that must be considered in urban development [3]. ...
... In particular, natural habitats have decreased significantly, which poses a serious threat to biodiversity on the coast [Millennium Ecosystem Assessment [MEA], 2005]. All around the world, coastlines are subjected to the contradiction between resource exploitation and environment protection, which is the main reason that integrated coastal management has become a global hot topic in recent years (Farmer and Parent, 1997;Hu and Xiao, 1999;Falcucci et al., 2007;Garza, 2008;Schwemmer et al., 2008). Therefore, the analysis of landscape spatial changes and its driving forces during different periods of the coast has become the latest trend, and is important for better understanding the evolution of the regional environment and changes in the global environment (Wang et al., 1996;Xiao et al., 2001;Li et al., 2002;Ou and Yang, 2003;Hu et al., 2004;Wang and Li, 2006;Zhang et al., 2009). ...
... Many models were developed to investigate the future wetland distribution changes in the midand high-latitudes under climate change and human activities, such as the zero-inflation model [27], maximum entropy model [28,29], logistic regression model [30], wetland landscape model [31], and cellar automata-Markov model [32,33]. Predictions using the maximum entropy model suggested that wetlands would decrease greatly over the 21st century in a mid-and high-latitude region of Northeast China [28]. ...
... Such a model allows describing the effects of hydrological processes on the major terms of the water balance with only four parameters, which makes it suitable for applications in ungauged catchments (Zhang et al., 2008). The model parameters (Table 1) have been assigned based on literature data on evapotranspiration and runoff of the entire Minjiang river catchment (Bai et al., 2020;Sun et al., 2008;Xu et al., 2007), as detailed information about the gullies where debris flows occurred was not available. The model allowed estimating the specific soil storage of the catchment C prior to the onset of every rainfall event, a proxy of the wetness conditions of the soil throughout the catchments, which affect infiltration and runoff and may be considered predisposing conditions for debris flows. ...
... Studies have confirmed that the extent of arid regions in these valleys has increased and habitat has deteriorated, and they have recommended further research to support ecological protection (Yang, Chang, Bu, et al 2007;Yang, Chang, Hu, et al 2007). Other work in arid regions in valleys in the Hengduan Mountains has focused on specific features of the valleys, such as rivers. ...
... Furthermore, the terrain in the study area is considerably undulated, with an altitude range of over 1000m. Therefore, the vertical distribution of the climate and vegetation is noticeable in the URMR [87]. The vegetation types changes from temperate forest into dry-valley shrub, subalpine forest, subalpine meadow, and shrub as the altitude increases [88,89]. ...