- Open Access
Impacts of land use and planning on island ecosystem service values: a case study of Dinghai District on Zhoushan Archipelago, China
© The Author(s). 2017
- Received: 22 April 2017
- Accepted: 30 June 2017
- Published: 3 August 2017
Recently designated as a new special economic zone in China, Zhoushan Archipelago is going through a rapid land use change that is expected to have significant impacts on ecosystem services. However, there is no baseline of ecosystem service value (ESV) of the Zhoushan Archipelago up to date, making it impossible to assess any impacts of land use changes. In this study, we adopted the concept of “equivalent value per unit area of ecosystem services in China” and computed the ESV for 2006, 2012, and 2020 of a representative district, Dinghai, on the Zhoushan Archipelago. We then analyzed the spatial and temporal patterns of land use changes and their impacts on ESV. The results indicated that the ESV of Dinghai District declined by 59.3 M Chinese yuan ($9.5 M US dollars) from 2006 to 2012 and would further decrease by an additional 30.9 M yuan ($5 M US dollars) by 2020 according to its planned land uses. These declines in ESV were primarily due to increases in buildup areas and losses in wetland, farmland, and water areas. The results imply that more attention should be paid to controlling urban growth and protecting coastal wetlands in order to preserve valuable ecosystem services of the Archipelago.
- Island ecosystems
- Ecosystem service value
- Land use
- Zhoushan Archipelago
Assessing ecosystem service values (ESV) is on the frontier of international research. It integrates the disciplines of ecology, economics, sociology, geography, and others (e.g., Speziale and Geneletti 2014 and Wang et al. 2015). Its concept was first introduced by Westman (1977) and subsequently modified by Daily (1977), Costanza et al. (1997b)), and Xie et al. (2001). These studies asserted that the structure, process, and function of ecosystems directly or indirectly provide life support (raw materials, etc.) and services (habitat, etc.), including ecological services necessary to human life and biodiversity.
Land use directly affects ecosystem services through interactions between ecological processes and human activities (e.g., Zhao et al. 2000 and Zhou et al. 2004). By changing the types of land cover, land use can affect the physical structure, ecological process, and function of an ecosystem. Therefore, one direct approach to estimating ESV is based on land use, as it reveals the ecological significance of ecosystem service value from the aspects of human activities and management. Previous studies have made extensive and in-depth efforts to quantify ESV across spatial and temporal scales (Costanza et al. 1997a; Mann et al. 2013; Pattanayak 2004; Turner et al. 2000), where ESV were assigned according to land use types based on, for example, expert surveys on the perceived values of different land uses and land cover types (e.g., Xie et al. 2008).
Most of these previous studies focused on terrestrial ecosystems. Few have paid attention to ecosystem services and their value for island ecosystems (Moberg and Rönnbäck 2003; Kumar et al. 2008; Brenner et al. 2010; Badola et al. 2012). Islands are defined as “lands isolated by surrounding water and with a high proportion of coast to hinterland” (Millennium Ecosystem Assessment 2003). They have characteristics of both land and aquatic systems but are unique in many ways. Due to the special geographical environment, island ecosystems are very fragile and particularly vulnerable to disturbances (e.g., Shi et al. 2009). It has been speculated that rapid developments on islands may prove disastrous for valuable ecosystem services. However, to date, there is no existing baseline ESV of island ecosystems against which the impacts of land use change could be assessed.
As China’s first prefecture-level island city, Zhoushan is undergoing rapid land use change. This is the result of its designation in 2011 as a new, special economic zone by the State Council of China’s Central Government, the fourth state-level economic reform pioneer zone after Pudong District in Shanghai, Binhai District in Tianjin, and Liangjiang District in Chongqing. How these ongoing land use changes affect the island’s ESV remains unclear. Therefore, it is of great importance to evaluate the ESV of Zhoushan Archipelago to gain a better understanding of its changing trajectory and to improve land use planning to ensure sustainable long-term development. To this extent, limited research has been conducted to assess ESV of island ecosystems (Zhao et al. 2016 and Zhao et al. 2014) using, for example, land use information derived from Landsat-type images. Due to its complexity and spatial variability, a better spatial resolution analysis of ESV is needed in order to better understand the consequences of land use planning on ESV. In this study, we used high-resolution land use data obtained from the Zhoushan Land Department to capture the island’s spatial variability and geographic characteristics for improved ESV estimation and analysis. We chose to focus on the largest district, Dinghai, on the Zhoushan Archipelago where the most rapid changes in land use have occurred since 2006.
The objective of this research is simply to assess spatio-temporal changes in ecosystem services values resulting from land use changes in the past and in the future. The questions to be addressed are to what extent have the land use changes on Zhoushan Archipelago affected its ESV from 2006 to 2012 and what are their future trajectories for 2020? The analyses of the dynamic spatial and temporal changes in ESV could shed some light on how land use change and land use planning could impact ecosystem service values of island ecosystems, thus providing a better understanding of the ecological implications of land use changes on islands.
Dinghai District has experienced rapid economic development and urbanization over the past three decades. Its gross domestic product (GDP) increased from 13.95 billion Chinese yuan in 2006 to 45.02 billion Chinese yuan in 2015. During this same time period, its land use changed significantly (Chen et al. 2009).
Socioeconomic variables and data sources
Grain yield, GDP, tourist number, and population
Dinghai District Bureau of Statistics
National grain purchase price
China Grain Yearbook (2014)
Urban green space rate
Zhoushan Municipal Bureau of Statistics
Land use data
Zhoushan Land Department
Land use classes
Croplands (upland and paddy included)
Fruit trees and berries
Natural forest and plantations
Reservoir, pond, river
City, towns, villages, agricultural facilities, and highways
Marshes in coastal zones
Mining, salt extraction facilities, scenic spots, and unused land
Due to the administrative boundary changes that have occurred over the past two decades, this study focused on the common geographic area, or overlap areas, of the Dinghai District to compare ESV across time periods from 2006 to 2012 and to determine the changes expected by 2020. Furthermore, according to the characteristics of Dinghai District, land use types were divided into eight classes: farmland, orchard, forest, grassland, water, construction land, tidal marsh, and others (Table 2).
Land use change analysis
where L c represents the dynamic index of a certain land use type, U a and U b are the areas of land use types at the beginning (U a ) and end (U b ) of the study period, respectively, and T refers to the study period (years).
Ecosystem service values
Equivalent ecosystem service value per unit area in China based on the research by Xie et al. (2008)
Providing aesthetic landscape
Adjusted ecosystem service value coefficient (VC)
(VCforest + VCfarmland)/2
(Feng et al. 2014)
(0.5VCforest + 0.4VCgrassland + 0.1VCriver/lake)a0.3483
(HU et al. 2013)
(VCgrassland + VCdesert)/2
(Xu et al. 2008)
Adjusted ESV per unit area of different land use in Dinghai District (Chinese Yuan*ha−1*y−1)
Providing aesthetic landscape
Calculation of ecosystem service values
where ESV k , ESV f , and ESV refer to the ESV of land use type k, service function f, and the total ecosystem services value, respectively, (in the unit of Chinese yuan). A k is the area of land use type k (ha), and VC kf is the value coefficient for land use type k with ecological service function type f.
where ESV refers to the estimated ecosystem service values, VC refers to the value coefficient, i and j represent the initial and the adjusted values, and k is the land use type. If CS > 1, then the estimated ecosystem value is elastic with respect to that coefficient, but if CS < 1, then the estimated ecosystem value is considered to be inelastic. The greater the proportional change in ESV relative to the proportional change in the valuation coefficient, the more critical it is to use an accurate ecosystem value coefficient.
Land use changes
Changes in total land use area and dynamic index (DI)
In general from 2006 to 2012, the total area of construction land, forest, and the ‘other’s category increased, while the total area of farmland, orchard, water, grassland, and tidal marsh decreased, with construction land as the most rapidly expanding land use type. From 2006 to the planned year 2020, the total area of construction land and orchards increased while others land types decreased. Among the land types, the construction land grew the fastest while farmland area was reduced the most. In terms of the dominant land use and land cover type, the total area of forest was the largest, accounting for over 40% of the study area, followed by farmland and construction land, while grassland was the smallest.
Changes in ecosystem service values
Changes in ecosystem service values in the Dinghai District (unit; million Chinese yuan/year)
Changes in ESV
Values of ecosystem service functions (unit; million Chinese yuan/year)
Percentage changes in estimated ESV and CS resulting from a 50% adjustment in VC
Change of value coefficient
Farmland VC ± 50%
Orchard VC ± 50%
Forest VC ± 50%
Grassland VC ± 50%
Water VC ± 50%
Construction VC ± 50%
Others VC ± 50%
Tidal marsh VC ± 50%
From 2006 to 2012, the ESV values of tidal marsh and water were greatly reduced, whereas those of construction land significantly increased. This was primarily because of the reduction in the total area of tidal marsh and water areas, as well as the fact that their value coefficients were relatively large even though the construction land area expanded the most during this time period. In 2012, construction land comprised 18.3% of all land use types, yet its ESV was only 7.8%. This means that the total ESV would decrease with the growth of construction land. From 2006 to the planned year 2020, the ESV of the construction and orchard land use types increased while others were all reduced.
In respect to the ecosystem functions listed in Table 8, the primary functions were hydrological regulation, maintaining biodiversity, waste treatment, and climate regulation, which accounted for more than 55% of total ESV. Food production’s ESV values were the lowest among all land uses. This is primarily due to the large value coefficients of water, tidal marsh, and forest, which play important roles in hydrological regulation, waste-water treatment, and climate regulation.
Spatial distribution of ESV
Ecosystem sensitivity analysis
In order for the results to be reliable, the sensitivity of ESV to changes in the value coefficients must be relatively low (CS < 1). The percentage change in the estimated total ESV and the corresponding coefficient of sensitivity (CS), resulting from a 50% adjustment in the service value coefficient (VC), indicated that the total ESV values were relatively inelastic with respect to changes in the value coefficients (Table 9). The coefficient of sensitivity for the forest land use type was 0.61, the highest among all land uses, due to its relatively large area and high value coefficient. Overall, the sensitivity analysis indicated that the ESV estimation in the study area was robust despite uncertainties in the value coefficients.
Due to the fact that the ESV of forests planted for 1 year and virgin forests is different, this paper ignored these differences in land use types. As discussed in previous research, these results are coarse considering the deviations and uncertainties caused by the complex, dynamic, and nonlinear interactions among different ecosystem components (Limburg et al. 2002; Turner et al. 2003) and the limitations of economic valuation (Costanza et al. 1997b). However, it is important to recognize that accurate coefficients are often less critical for time series because coefficients tend to affect estimates of directional change. This study primarily focused on changes in ecosystem services over time. The coefficient of sensitivity in this study was less than 1 for a variety of land use types, suggesting validity of the response of ESV to land use change and planning.
As demonstrated in Table 6, construction land would have used 78% of its planned quota in 6 years, implying that the plan was unreasonable and/or would not meet development needs. From 2006 to 2012, most of the lost farmlands were replaced by construction land. In line with the idea that urbanization is becoming an important factor in land use change (Olaniyi et al. 2012), the impervious surface area (ISA) on the Zhoushan Archipelago increased significantly from 2006 to 2011 (Zhang et al. 2013) as a result of urban construction and the development of transportation infrastructure. Zhang et al. (2014) examined the coastline changes of the Zhoushan Archipelago and found noteworthy seaward expansion during the past four decades. This suggests that local governments should strictly implement the principle of “Farmland Requisition-Compensation Balance” as stated in the “General Land Use Planning in Dinghai District of Zhoushan City (2006–2020).”
The farmland of the Zhoushan Archipelago is very limited, and according to the “Overall Planning of Zhoushan Archipelago New Area (city), Zhejiang (2012–2030),” the construction land and the farmland in the New Area are highly colocated spatially. We can predict that with the rapid development of the Zhoushan Archipelago, the conflicts between development and ecological protection will continue to intensify. Accordingly, the government should adjust land use planning to ease the competition for green space. The amount of construction land area per capita found in a 2006 study was 197.1 m2/person (the population then was 0.3733 million); by 2012, the construction land area per capita had grown to 268.8 m2/person (the population was 0.3812 million). This means that the government should improve construction land use intensity rather than expanding construction area. Furthermore, the government would benefit to pay more attention to the construction of urban and public green to improve the ESV of construction land, and realize the coordinated development of land use demand and ecological protection.
As a special marine ecosystem, the Dinghai District has unique characteristics from the perspective of ecological processes, structure, and functions. As in the case study by Zhao et al. (2004), which pointed out that the wetlands and tidal flats of Chongming Island are valuable yet rapidly decreasing land resources due to large-scale ocean reclamation activities, this study suggests that the Zhoushan Archipelago is facing the same problem: its tidal marsh is declining quickly. The reclaimed areas have mostly been used for road construction, urban buildings, and basic infrastructures, reducing the buffer between land and ocean. Reclamation of these sensitive buffer zones or shores significantly altered the ecological properties and shortened the distance between human dwellings and marine systems, and thus their associated ESV. What is more, ocean and coastal tourism mounts significant pressure for the local environment (Hall 2001), as the tourist numbers of Dinghai District increased from 2.01 million in 2006 to 5.45 million in 2012. Management strategies for coastal and ocean tourism need to be developed.
Quantifying services provided by land use in the form of money is the direct embodiment of the optimization of regional land resources. From 2006 to 2012, the ESV of forest, construction land, and the others category increased, among which the construction land increased the most. From 2006 to 2020, only orchard and construction land ESV grew, while the others land types decreased, especially the water, forest and tidal marsh. Generally speaking, from 2006 to 2012, the total ESV declined a lot, and when it comes to the planned year 2020, the total ESV further decreased. Therefore, the government of Dinghai District should give more consideration to ecological protection, especially in the forest, tidal marsh, farmland, and water areas that have a large impact on the total ESV values. We suggest that better controlling urban growth would ensure greater ecological sustainability.
Based on the analysis of the composition of ecosystem service functions, it was clear that the contributions to the total ESV were (from high to low) hydrological regulation, climate regulation, biodiversity, soil conservation, greenhouse gas regulation, waste treatment, aesthetic landscape provision, raw material supplies, and food production. Because of the accelerated urbanization, with the exception of a slight increase in ESV from greenhouse gas regulations and raw material supplies, all other service functions were reduced from 2006 to 2012. The results from this study suggested that the Zhoushan Archipelago is facing the mounting pressure of rapid urbanization, similar to the case study in Xiamen, a coastal city in China (Lin et al. 2013). Integrating traditional knowledge and scientific knowledge for coastal management can be used to alleviate this pressure (Cicin-Sain 1993; Abreu et al. 2017).
By quantitatively analyzing the impacts of land use change on ESV in the Dinghai District of Zhoushan Archipelago from 2006 to 2012 and the planned year 2020, the following conclusions were reached: (1) from 2006 to 2012, there were significant changes in land use in the district, especially in the construction land, farmland, and tidal marsh categories. Furthermore, most of the farmland and tidal marsh were replaced by construction land of low ecological values; (2) The total ESV of the district decreased significantly due to land use changes by 59.3 M from 2006 to 2012 and by an additional 30.9 M Chinese yuan by year 2020; (3) In terms of dominance, more than 55% of the total ESV was comprised of forest, followed by farmland, water, and tidal marsh with grassland being the least; (4) The ecosystem service functions of the Dinghai District were mainly related to hydrological regulation, biodiversity, waste treatment, and climate regulation, contributing more than 55% of the total ESV, with food production as the least significant contributor.
In conclusion, the planned land use by 2020 seems unsustainable for the Zhoushan Archipelago, and the local government may need to adjust the current plan to reduce the conflict over space by strictly implementing the Farmland Requisition-Compensation Balance policy and improving land use efficiency. At the same time, the government should also give more considerations to ecological protection, especially the forest, tidal marsh, farmland, and water surface areas because of their large impacts on the total ESV.
The authors would like to thank all the participants who were involved in fieldwork.
This research was financially supported by the National One-Thousand-Talent Program, the National Natural Science Foundation of China (no. 41401404). Preparation of this manuscript was partially supported by the Fundamental Research Funds for the Central Universities (2015QNA4039) and the Asian Pacific Network funded project (ARCP2013-FP25-Wu).
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
JQ and CJ designed the study. LQ and CX helped in collecting the data. SX and JJ analyzed the data. SX, JC, and QJ wrote the manuscript. All authors read and approved the final manuscript.
The authors declare that they have no competing interests.
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