scholarly journals Exploring Development Trends of Terrestrial Ecosystem Health—A Case Study from China

Land ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 32
Author(s):  
Yingchao Li ◽  
Zhiyuan Fan ◽  
Zhenhao Li ◽  
Xuefang Zhang ◽  
Ruyu Du ◽  
...  
Keyword(s):  
Land Use Planning ◽  
Ecosystem Health ◽  
Rbf Neural Network ◽  
Sewage Treatment ◽  
Terrestrial Ecosystem ◽  
Henan Province ◽  
Development Trends ◽  
Positive Role ◽  
Index Method ◽  
Science Field

Terrestrial ecosystem health (TEH) is the basis of regional sustainability development. The state of TEH is an important research direction in the land science field. The purpose of this paper was to explore the development trends and influencing factors of the. By using the radial basis function (RBF), neural network model, geographic information system (GIS), and the comprehensive index method, this paper predicted the land ecological changes of Henan Province from 2007 to 2025 based on a comprehensive evaluation of the system. The results show that the TEH of Henan Province exhibited a general trend of improvement from 2007 to 2025. The predictions exhibited a tendency to fluctuate and increase, from “severe warning” to “moderate warning” and even to “no warning” state. The early warning index of the subsystem showed a fluctuating upward trend except for the press subsystem, which fluctuated between “extraordinary warning” and “heavy warning” states. The overall TEH level is improving but is largely dependent on effective corresponding measures. The health status of the land ecosystem in Henan Province is guaranteed to be stable due to improvements in rural residential incomes, mechanization levels of cultivated land, domestic sewage treatment rates, and the numbers of scientific and technological personnel per unit of land. The TEH is mainly restricted by the population densities, urbanization levels, inputs of fertilizers and pesticides, and average wastewater load factors of the land. To improve the health level of the land ecosystem, it is necessary to reduce the use of fertilizers and pesticides and to control the urbanization rate. At the same time, improving the level of forest coverage and the effective irrigation rate play a positive role in improving ecosystem health. The results provide a reference for land-use planning and management decisions.

scholarly journals Impact of Forest Seral Stage on use of Ant Communities for Rapid Assessment of Terrestrial Ecosystem Health

2010 ◽  
Vol 10 (77) ◽  
pp. 1-16 ◽  
Author(s):  
Lynn D. Wike ◽  
F. Douglas Martin ◽  
Michael H. Paller ◽  
Eric A. Nelson
Keyword(s):  
Ecosystem Health ◽  
Rapid Assessment ◽  
Terrestrial Ecosystem ◽  
Ant Communities

Planning and geology

1987 ◽  
Vol 4 (1) ◽  
pp. 49-52
Author(s):  
G. F. McDonic
Keyword(s):  
Land Use Planning ◽  
Political Process ◽  
Planning Service ◽  
Positive Role ◽  
Development Control ◽  
Factors Influencing ◽  
Development Plans ◽  
Technical Advice ◽  
The One

AbstractMost of those engaged in town and country planning are aware of the importance of geology regarding their subject. Indeed there are many geologists now engaged in the planning service.There are two areas, in particular, where geological skills will be required on an increasing scale in the future. These are in mineral planning and landfill and restoration on the one hand, and countryside planning on the other.Land use planning is a political process and has as its basis the positive role of development plans and the negative constraints of development control. Development control involves the approval and refusal of planning applications by planning authorities and the Secretary of State for the Environment. Many disciplines contribute technical advice regarding planning but technical advice is just one of the factors influencing any decision since planning authorities are charged with considering all material considerations.

Suitability Evaluation on Land Reclamation in Hebei Fanshan Phosphate Mine

2014 ◽  
Vol 1010-1012 ◽  
pp. 1291-1296 ◽  
Author(s):  
Qing Jun Zhang ◽  
Jun Na Lu
Keyword(s):  
Land Use Planning ◽  
Land Reclamation ◽  
Mining Area ◽  
Evaluation Index System ◽  
Index Method ◽  
Suitability Evaluation ◽  
Phosphate Mine ◽  
Garden Plot ◽  
Comprehensive Index Method ◽  
Important Basis

Suitability evaluation is the important basis for scientifically determining the direction of land reclamation. This paper deeply elaborates the goal of land reclamation and the principles of suitability evaluation. land reclamation direction of the project area is initially determines to be cultivated land, forest land, grassland and garden plot based on region land-use planning and analysis of natural factors, socio-economic factors, policy factors of the mining area; the evaluation index system including five involved factors is constructed, and the suitability evaluation of evaluation units is carried out by the comprehensive index method and extreme conditions. Based on above-mentioned evaluation, the land reclamation direction of 14 evaluation units are ultimately determined by comprehensive analysis of the local natural conditions, social conditions and so on.

scholarly journals Assessment of Ecosystem Health and Its Key Determinants in the Middle Reaches of the Yangtze River Urban Agglomeration, China

2022 ◽  
Vol 19 (2) ◽  
pp. 771
Author(s):  
Fengjian Ge ◽  
Guiling Tang ◽  
Mingxing Zhong ◽  
Yi Zhang ◽  
Jia Xiao ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Yangtze River ◽  
Ecosystem Health ◽  
Urban Land Use ◽  
Urban Agglomeration ◽  
The Yangtze River ◽  
Urban Agglomerations ◽  
Surrounding Areas ◽  
City Group

Urban agglomerations have gradually formed in different Chinese cities, exerting great pressure on the ecological environment. Ecosystem health is an important index for the evaluation of the sustainable development of cities, but it has rarely been used for urban agglomerations. In this study, the ecosystem health in the middle reaches of the Yangtze River Urban Agglomeration was assessed using the ecosystem vigor, organization, resilience, and services framework at the county scale. A GeoDetector was used to determine the effects of seven factors on ecosystem health. The results show that: (1) The spatial distribution of ecosystem health differs significantly. The ecosystem health in the centers of Wuhan Metropolis, Changsha–Zhuzhou–Xiangtan City Group, and Poyang Lake City Group is significantly lower than in surrounding areas. (2) Temporally, well-level research units improve gradually; research units with relatively weak levels remain relatively stable. (3) The land use degree is the main factor affecting ecosystem health, with interactions between the different factors. The effects of these factors on ecosystem health are enhanced or nonlinear; (4) The effect of the proportion of construction land on ecosystem health increases over time. The layout used in urban land use planning significantly affects ecosystem health.

scholarly journals Study on Heavy Metal Pollution Characteristics and its Health Risk Assessment from Sludge of Sewage Treatment Plants in Industrial Parks

2020 ◽  
Author(s):  
Xiuyan Han ◽  
Tianyi Cao ◽  
Tao Sun
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Heavy Metal ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Sewage Treatment ◽  
Industrial Park ◽  
Index Method

Abstract Background In order to study the characteristics of heavy metal pollution from sludge in industrial parks and the effective methods of health risk assessment, in this paper, the pollution characteristics of eight heavy metals including Zn, Cu, Pb, Hg, Cr, Ni, As, Cd in sludge of sewage treatment plants in Nanjing MV Industrial Park were comprehensively evaluated and compared by using Nemerow Index Method, Muller Index Method and Matter element extension method. On this basis, the health risk assessment models of non-carcinogenic and carcinogenic heavy metals were constructed, and the health risks caused by four kinds of non-carcinogenic heavy metals Pb, Zn, Cu, Hg and four kinds of carcinogenic heavy metals Cr, As,Cd, Nicontained in sludge were evaluated by using the practical data of Nanjing Industrial Park. Results According to the evaluation results of heavy metal pollution characteristics in sludge of sewage treatment plants in Nanjing MV Industrial Park, the order of different pollution levels under different assessment methods is as follows: the level of the Nemerow Index Method assessment was low, the level of the Muller Index Method assessment was high, and the level of Grey Clustering Method assessment was relatively moderate. In the health risk assessment of heavy metals, the results showed that the order of effects of non-carcinogenic heavy metals on health risk ranged from large to small was: Hg, Cu, Pb, and Zn, and the health risk of non-carcinogenic heavy metal in children was much higher than that in adults. Similarly, the order of effects of carcinogenic heavy metal health risk ranged from large to small was Cd, Cr, Ni and As, and the health risk of carcinogenic heavy metal in children was slightly lower than that in adults. Conclusions It can be seen that there is a certain degree of heavy metal pollution in the sludge of the sewage treatment plant in Nanjing MV Industrial Park, which affects the environmental quality in the park and the health risks of residents. This study verifies the assessment method of the heavy metal pollution characteristics and health risk is effective, and its research results have a guiding role in the management of heavy metal pollution in the sludge of the sewage treatment plant in Nanjing MV Industrial Park. It also has significant theoretical support for the government to formulate the eco-environmental quality standards and related policies of industrial parks.

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