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International Journal of Disaster Risk Science 2020年第5期11卷 640-654页

作者： Ven Paolo Bruno Valenzuela Miguel Esteban Onuki Motoharu Graduate Program in Sustainability Science-Global Leadership Initiative The University of TokyoKashiwaChiba 277-8563Japan Department of Civil and Environmental Engineering Waseda UniversityTokyo 169-8555Japan

Southeast Asia's coastal urban areas continue to grow,with land reclamation fast becoming an important option for megacities to address issues of economic growth and increasing population density.Experts are divided over the advantages and disadvantages of land reclamation,though this process continues unabated,exposing settlements to coastal hazards.The Bataan Shipping and Engineering Company(BASECO)compound is an informal settlement on reclaimed land in Manila,the Philippines.How informal coastal settlements view disaster risk and their more pressing socioeconomic needs is crucial to understanding the potentials and repercussions of land reclamation.Using a topographic survey,a questionnaire survey,and the protective action decision model,this study explored the perception of disasters and land reclamation of informal settlers who are living on reclaimed land.The study found that people are aware of disaster risks,but are more concerned with everyday needs.They are divided on the issue of further land reclamation.Residents on the original non-reclaimed land view it as a coastal defense,while those on reclaimed land fear potential eviction.Despite this,all locations in the community are concerned with the loss of jobs,economic opportunities,and eviction,rather than potential disasters.

关键词： Coastal hazards Flooding Informal settlements land reclamation Philippines Risk perception Urbanization

Ecological rebuilding and land reclamation in surface mines in Shanxi Province, China

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Journal of Environmental Sciences 2000年第4期12卷 486-497页

作者： MIAO Ze wei 1, BAI Zhong ke 2, GAO Lin 1 (1. Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China E\|mail: miaozewei@*** 2. Department of Soil Science, Shanxi Agricultural University Taigu, 03 中科院生态环境研究中心北京 1 0 0 0 85 山西师范大学山西临汾 0 3 0 80 1

It is well known that the mining industry produces a large amount of derelict land, and causes pollution of water loss and soil erosion as well as other environmental damage in China. As land is under pressure in China, it is now policy to restore or reclaim land despoiled by mining, the aim being to develop sustainable and healthy arable land ecosystems. This paper outlines the principles and approaches of ecological restoration, which have been adopted in Shanxi Province with reference to three typical surface mines. In the research, the principles of ecological engineering and ecological succession are considered as the critical theories of ecological restoration in mine degraded land. Meanwhile, the paper made a comparative research on main links of ecological rebuilding in three surface mines in Shanxi Province, which include new land construction, treatment of toxic substances, control of soil erosion, fertility management, irrigation, ecological planning and the establishment of legislation systems. As the research demonstrated, for successful restoration, new land construction is the fundamental framework, but it must be integrated with ecological engineering including ecological planning, the control of soil erosion and vegetation establishment and ecosystem creation in order to optimise land productivity and soil fertility. In addition, the establishment of the legislation systems and organization of administration are also indispensable aspects of ecological rebuilding in mined land.

关键词： ecological restoration land reclamation open-pit mine

GIS-Based Assessment of Soil Chemical and Physical Properties as a Basis for land reclamation in Toshka Area, Aswan, EGYPT

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Open Journal of Geology 2023年第7期13卷 697-719页

作者： Ahmed A. M. Awad Mostafa M. A. Al-Soghir Department of Soil and Natural Resources Faculty of Agriculture and Natural Resources Aswan University Aswan Egypt

The accurate assessment of soil properties is a crucial factor for composing and implementing reclamation plans. The main objective of this study was to evaluate soil chemical and physical properties and calculate the chemical and fertility index for assisting land reclamation in Toshka area. The Toshka area is located between latitudes 31°32'N and 31°36'N and longitudes 32°40'E and 32°60'E. GIS was used to select 16 sites. The results revealed the soil has undesirable characteristics. The soil pH ranged from slightly alkaline to moderately alkaline. Furthermore, it was characterized as saline (with a ECe of 4.65 - 11.45 dS⋅m−1) and moderately calcareous soil (with CaCO3 at 11.85% - 17.20%). The soil had a low soil organic matter content which did not exceed 0.18%. The soil was dominated by a sandy loam texture (62.50%) followed by a sandy clay loam texture (18.75%). The bulk density, total soil porosity and saturated hydraulic conductivity values varied with 1.38 - 1.55 Mg⋅cm−3, 41.85% - 48.45% and 1.20 - 3.34 cm⋅h−1, respectively. The chemical index ranged from low to moderate quality. The correlations between the parameters osculated between negative and positive. Therefore, the soil may be reclaimed if the soil properties are improved and crop selection is optimized for this soil.

关键词： land reclamation Soil Chemical and Physical Properties Chemical Quality Index Fertility Quality Index

Zoning of land reclamation in coal mining area and new progresses for the past 10 years

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International Journal of Coal Science & Technology 2014年第2期1卷 177-183页

作者： Wu Xiao Zhenqi Hu Yanhua Fu Institute of land reclamation and Ecological Restoration China University of Mining and Technology(Beijing)Beijing 100083China

Coal mining disturbed land is the main sources of land reclamation in China.With the rapid increase of economy and coal production,more and more land has been disturbed by construction and coal mining;thus,land reclamation has become highlights in the past 10 years,and China is boosting land reclamation in mining areas.Disturbance characteristics vary from region to region,according to natural and geological conditions,coal mining area land reclamation was divided into 3 zones,which are eastern,western and southern.reclamation strategies are focused on prime farmland protection in eastern and ecological restoration in western and southern zones,respectively.Several innovative reclamation technologies and theories for the past 10 years were introduced in this paper,including concurrent mining and reclamation,Yellow river sediments backfilling,self-reclamation,and topsoil alternatives in opencast mines.Besides,in the government regulation and legal system building respect,several important laws and regulations were issued and implemented in the past 5 years,promoting land reclamation management and supervision greatly.land reclamation is and will still be one of the most important parts of coal industry in the future,and more efforts and funds are expected to get involved.

关键词： land reclamation Zoning Concurrent mining and reclamation Yellow river sediments Self-reclamationland reclamation regulation

Special issue on land reclamation in ecological fragile areas

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International Journal of Coal Science & Technology 2018年第1期5卷 1-2页

作者： Zhenqi Hu Institute of land reclamation and Ecological Restoration China University of Mining and Technology (Beijing) D11 Xueyuan Road Haidian District Beijing 100083 China

Coal is the most important energy in China,accounting for about 60％ of energy consumption,which is about half of the total coal output in the world.With the excavation of coal resources,a lot of land was damaged and serious environmental problems were produced.Thus,coal mined land reclamation has become the important task for achieving the target of green mining in China.As most of coal mines locate in ecological fragile areas,the ecological damages might even more serious.Therefore,this special issue focus on land reclamation in ecological fragile areas.

关键词： land reclamation

Impact of land reclamation on the Vegetal Cover of Bayelsa State, Nigeria

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Journal of Geographical Research 2021年第2期4卷 17-21页

作者： Michael.U.Didia P.N.Ede Department of Geography and Environmental Management Rivers State UniversityNigeria

The study examined the impact of land reclamation on vegetal cover in Bayelsa State.For the purpose of this study,both quantitative and qualitative research methods were adopted.Field observations,questionnaire survey and landsat imagery of land cover changes in the year 1986 and 2018 were generated from the global ground cover facility stream.The time series study design and supervised classification of the image processing were adopted to determine the impact of land reclamation on vegetal cover of the study area.It was therefore recommended that recovery of land will make strategic urban planning initiatives sustainable in overcrowded areas and institutions should also put in place laws and strategies to regulate reclamation activities across the region and also geo-spatial skills should be put in place to help quantify the dynamics,trends and rate of reclamation induced land cover change in the environment.

关键词： land reclamation Vegetal cover Bayelsa state Vegetal cover changes

Advances in land reclamation Related Research

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Advances in Land Reclamation Related Research

reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim,China

中国土木工程学会第九届土力学及岩土工程学术会议

作者： C F Leung nus.edu.sg J Chu ntu.edu.sg Centre for Soft Ground Engineering National University of Singapore Singapore cvelcf Geotechnical Research Centre Nanyang Technological University Singapore cjchu

＜正＞ This paper presents the findings of some of the research studies carried out in Singapore on land reclamation problems and related issues. Experimental studies on soil improvement using vertical drains are first presented. The results provide a good insight on the problem understudy and help to improve the design of vertical drains in land reclamation projects. The second half of this paper reports the experimental and field studies on the use of waste soils for land reclamation. The findings reveal that waste soils can be used as reclamation fill materials but appropriate actions and evaluations must be made in order to ensure the fill functions satisfactorily and the magnitude and rate of fill settlement can be determined.

关键词： land reclamation consolidation soil improvement waste soils settlement

来源： cnki会议评论

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Acta Oceanologica Sinica 2022年第9期41卷 192-204页

作者： Fan Wei Mei Han Guangxuan Han Min Wang Lixin Tian Jiqian Zhu Xianglun Kong College of Geography and Environment Shandong Normal UniversityJinan250358China Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai264003China

Coastal wetlands are located in the ecotone of interaction between the land surface and sea,and anthropogenic activities extensively interfere with these wetlands through the reclamation of large tidal wetlands and destruction of the function of the ecosystems.In this study,we investigated the dynamic evolutionary characteristics of the Bohai Rim coastal area over the past 40 years using the Modified Normalized Difference Water Index,the fractal dimension,object-oriented classification,the land-use transfer trajectory,and regression analysis.Additionally,we quantified and monitored the evolution of reclamation and analyzed the correlation between reclamation and coastal wetlands based on 99 landsat-2,-5,and-8 images(at 60 m and 30 m spatial resolution) over the period 1980–2019.The results are as follows.(1) The coastline of the Bohai Rim increased by 1 631.2 km from 1980 to2019 with a zigzag variation.The artificial coastline increased by 2 946.1 km,whereas the natural coastline decreased by 90%.(2) The area of man-made wetlands increased by 3 736.9 km~2,the area of construction land increased by 1 008.4 km~2,and the natural wetland area decreased by 66%.The decrease of tidal flats is the main contributor to the decrease of natural wetland area(takes account for 91.1%).Coastal areas are affected by intense human disturbance,which was taken place across a large area of tidal flats and caused the landscape to fragment and be more heterogeneous.The coastal zone development activities were primarily concentrated in the southern Laizhou Bay,the Yellow River Delta,the Bohai Bay,the northern Liaodong Bay,and the Pulandian Bay.The solidified shorelines and increase in sea level have resulted in intertidal wetlands decreasing and impaired wetland ecology.(3) There is a good agreement between reclamation and the size of the coastal wetlands.Both land reclamation and the reduction in coastal wetland areas are significantly related to the population size,fishery output value,and urbanization rate.In summary,human activities

关键词： Bohai Rim coastal wetlands land reclamation evolutionary mechanisms coastal management

Ecosystem services dynamics response to tremendous reclamation in a coastal island city

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Ecosystem Health and Sustainability 2019年第1期5卷 155-168,I0010页

作者： Jinsong Deng Yi Lin Mengmeng Zhou Chun Wu Binjie Chen Guoqiang Xiao Jinbo Cai College of Environmental and Resource Sciences Zhejiang UniversityHangzhou Department of Geography University of Hong KongHong KongChina Breeding and processing laboratory Zhejiang Mariculture Research InstituteWenzhouChina

Introduction:Ecosystem services are the benefits delivering from the natural environment to human society.Ecosystem services are regarded as important tools for decision-makers to understand the impacts of land use and land cover(LULC)change.Outcomes:The dynamic of four primary ecosystem service indicators were assessed over 1984–2014 based on InVEST model and their responses to LULC changes have been analyzed by the ecosystem service change index(ESCI)and ecosystem service state index(ESSI).Our results confirmed the significant increment in land reclamation in Zhoushan City and over half of the reclamation area was used for human-induced urbanization and over a quarter for the fishery.For the whole territory,the most significant LULC conversions were observed between agricultural land and urban.The study period witnessed the degradation of habitat quality and soil sediment,an increment of the water yield and no significant change of carbon storage.Discussion and Conclusion:Most changes in LULC are significantly related to the dynamics of ecosystem services,which were more impacted in the reclamation area than the rest of the city.Our study highlights the importance of ecosystem service assessments for sustainable land planning and securing economic development.

关键词： land change and land cover ecosystem service land reclamation

Earthworm community development in soils of a reclaimed steelworks

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Pedosphere 2021年第3期31卷 384-390页

作者： Kevin RBUTT Siobhan MQUIGG University of Central Lancashire School of Forensic and Applied SciencesPreston PR12HEUK

Long-term studies are essential to learn earthworm community development and soil formation post reclamation.Investigations were undertaken at a former steelworks site at Hallside,near Glasgow,UK,reclaimed in the 1990s using a mixture of colliery spoil and sewage sludge.The site was largely planted for production of short rotation coppice willow(Salix spp.).Earthworm inoculation formed a part of the restoration process.Minimal monitoring occurred in the interim,but some records of earthworm sampling existed in 2000 and 2005.This study focused on monitoring earthworms and soil properties across the site,drawing comparisons with adjacent unspoiled soil.Results showed that after 22 years,a species-rich community of earthworms(n=16)colonized the site,with endogeic Aporrectodea caliginosa being dominant by number and anecic A.longa by mass.Across the site,earthworm community density and biomass were 208 individuals m^(-2) and 71 g m^(-2),respectively.The Shannon diversity index for earthworms was 1.89,with an evenness of 0.68.The sewage sludge increased the soil organic matter,but the stone content of the colliery spoil prevented digging in some locations.Soil chemistry had no negative effect on earthworms,but the compacted substrate did hinder water infiltration.Earthworms colonized the reclaimed site from adjacent areas,and community structure and density below well-drained,scrub-free willow,birch,and grassland were not significantly different(P>0.05)from those of the adjacent unspoiled areas.The results show that the historical earthworm inoculation was unnecessary and badly timed.Future reclamations of similar sites can learn from this investigation.

关键词： colliery spoil colonization inoculation land reclamation pedogenesis rehabilitation sewage sludge willow