The sensitivity and change rate of the ecological service value of land use/cover change in Guiyang city

Author(s):  
J.X. Shao ◽  
F.T. Zhang
Author(s):  
Keyue Yuan ◽  
Fei Li ◽  
Haijuan Yang ◽  
Yiming Wang

Land use change has an impact on the ecosystem service value because it changes the structure and function of ecosystems. This paper analyzed the changes in land use during the period from 2000 to 2015 in Shangzhou district, and used the equivalent value of ecological services per unit area of land ecosystem combining the natural and economic conditions of Shangzhou district. Based on this method, the ecological service value of Shangzhou district was estimated, and the impact of land use change on the ecological service value was analyzed. The results showed that: (1) the main types of land use in Shangzhou district were grassland, woodland and farmland, among which the contribution rate of woodland to the value of local ecosystem services was the highest; (2) the overall trend in the ecosystem service value in Shangzhou district increased between 2000 and 2015, from 10.74 × 108 yuan in 2000 to 20.32 × 108 yuan in 2015, which is the result of the combined effects of regional economic development and changes in the natural environment and land use patterns; and (3) the main reason for the value increase of ecosystem services in Shangzhou district between 2000 and 2015 was that the grain-for-green policy transformed a considerable amount of farmland into woodland, while the main reasons for a decline in value was the expansion of built-up land that occupied other types of land.


2014 ◽  
Vol 1065-1069 ◽  
pp. 2744-2748
Author(s):  
Jia Qi Yu ◽  
Hua Zhao ◽  
Yu Tong Wang ◽  
Jia Xin Xu

Land use change ,which has a great influence on the ecological balance, is one of the major driving force in the evolution of regional ecological system. With coal mining and land reclamation for years , Peixian county’s land structure has been changed, which has a big impact on the ecological environment.Based on TM/ETM imagery interpretation data in 1988-2014, with the aid of remote sensing and GIS method, analysis of Peixian county nearly 26 a mining area land use change, and combining the mine actual situation, fix the corresponding ecological service value, calculate the regional ecological service value and its changing trends.


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Yuntong Liu ◽  
Dan Zhang ◽  
Kuan He ◽  
Qiong Gao ◽  
Fen Qin

In the regional landscape pattern, woodland landscape patches are developed in a regular manner, showing a trend of agglomeration as a whole; the concentration and dominance of landscape patches of cultivated land, grassland, and unused land are decreasing, and the overall situation is fragmented; the water landscape pattern is also showing a regular development state to varying degrees. On the whole, the landscape of a certain area is scattered and fragmented, and the dominant landscape types dominate the overall landscape layout of the region. The diversity of land use landscape pattern shows positive autocorrelation as a whole. According to the Moran’s I index of the diversity of land use landscape patterns, the overall agglomeration effect of the region has increased, but the overall trend is in a balanced trend. The ecological service value of urban land use change continues to increase, but the regional differences are significant, the structure is simple, and it is mainly supported by ecosystems such as forest land, water area, and agricultural land. Based on the analysis of the spatiotemporal evolution of land use, an in-depth analysis of the urban water environment, atmospheric environment, soil environment, urban heat island, and other environmental issues of the urban land use in the study area is carried out. The calculation and analysis results of the ecological service value of urban land use change and its flow direction change show that the ecosystem service value has increased, and the regional difference and flow direction of the ecosystem service value have changed significantly.


2010 ◽  
Vol 26 (6) ◽  
pp. 832-839
Author(s):  
Zhong-sheng CHEN ◽  
Ya-ning CHEN ◽  
Wei-hong LI ◽  
Xiang HUANG

Author(s):  
S.-D. Wang ◽  
H.-B. Zhang ◽  
X.-C. Wang

The ecosystem service value is an important concept and an index that reflects the quality of the regional ecological environment status and the measurement of the total ecological benefits. In this study, based on the characteristics of land use and the types of ecosystem in the studied area, the ecological indicators including the net primary productivity of the vegetation and the vegetation cover were selected. Landsat TM remote sensing image, ground-based observation, meteorological data and statistical data etc. were applied to establish the remote sensing-based assessment criteria and assessment model for quantitative estimation of the ecosystem service value. The established assessment criteria and model were applied to conduct the quantitative calculation on the value of the single ecosystem service and the ecosystem service value per unit area. The results indicated that during the decade of 2000–2010, with the inter-conversion of different types of land use, the total value of the ecological service in the studied area displayed a gradually decreasing trend. Among which, the values of ecological service of the cultivation land, wetland and the total ecological service were reduced by 11.92, 11.75 and 5.74%, respectively. While the values of ecological services of forest land, waters and intertidal zone were increased to certain extend. However, these increased values did not change the continuously decreasing trend of the total value of ecosystem service in the studied area. Based on these assessments, the spatially- and temporally-changing patterns of the values of ecosystem service in the studied area were analysed to reveal their intrinsic relationship between the land use and the changes in values of ecosystem service.


2021 ◽  
Vol 10 (11) ◽  
pp. 716
Author(s):  
Nan Yang ◽  
Wenbo Mo ◽  
Maohuang Li ◽  
Xian Zhang ◽  
Min Chen ◽  
...  

Catchments support the survival and development of humans in a region and investigating the mechanism of land-use changes and ecological responses in catchments is of great significance for improving watershed ecological service functions. Taking the Dongting Lake catchment as the study area, this study used spatial analysis, an ecosystem service value (ESV)-equivalent factor method, grid method, and other spatial analysis methods to explore land-use changes and the corresponding ecological service value response from 1990 to 2015, to provide an important theoretical reference for ecological service management, regional planning and ecological service function improvement in the Dongting Lake Basin. Our findings are as follows: (1) apart from a trend of notable expansion in construction land, the land-use types in the Dongting Lake catchment did not change significantly. (2) Grassland had the fastest transfer-out rate; forest land were cultivated land comparably transferred to each other with a larger area, where both were simultaneously and continuously transferred out as construction land; water areas, wetlands, and construction land were all transferred in, where construction land had the fastest transfer rate. (3) The total ESV of the watershed first increased and then decreased, but the overall change was small; spatially, the wetlands and water areas had a higher ESV, whereas construction land and cultivated land had lower ESVs. (4) Soil protection, gas exchange, climate regulation, biodiversity, and water conservation are always the main ecosystem service functions of a catchment, where the service function of the catchment ecosystem is greater than the productive function. The increase in construction land was the main factor for the increased differences between the spatial distributions of the soil, raw materials, biodiversity protection, and gas exchange.


2019 ◽  
Vol 39 (14) ◽  
Author(s):  
宁珊 NING Shan ◽  
张正勇 ZHANG Zhengyong ◽  
周红武 ZHOU Hongwu ◽  
李丽 LI Li ◽  
赵贵宁 ZHAO Guining

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