Trade-offs among ecosystem services in a typical Karst watershed, SW China

Tian, Yuan; Wang, Shijie; Bai, Xiaoyong; Luo, Geping; Xu, Yong

doi:10.1016/j.scitotenv.2016.05.190

Cited by 125 publications

(55 citation statements)

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“…It is clear that the links between ecosystem services are complex and tight, and a range of studies has explicitly analyzed possible synergies and trade-offs. A number of previous studies has demonstrated the presence of a trade-off between water yield, NPP and soil conservation [20,[60][61][62]; increases in NPP will decrease water yields and increase levels of soil conservation. The results presented here partially support these earlier conclusions, as we also identified synergies among the three ecosystem services, NPP, water yield and soil conservation.…”

Section: Relationships Between Trhr Ecosystem Servicesmentioning

confidence: 99%

Trade-Offs and Synergies in Ecosystem Service within the Three-Rivers Headwater Region, China

Han

Song

Deng

et al. 2017

Water

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Abstract:The Three-Rivers Headwaters region (TRHR) is an ecological shelter located in the northeast of the Tibetan Plateau, China, that provides environmental protection and regional sustainable development. This region also provides ecosystem services including water supply and soil conservation and exerts major impacts on both its surroundings, as well as the whole of China. A number of ecological restoration projects have been initiated within the TRHR since 2000, including the creation of a natural reserve. Analyses of trends in land use/land cover (LULC), net primary productivity (NPP), water yield and soil conservation within the TRHR are presented based on regional climate and land use datasets and utilizing the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model in tandem with the double mass curve (DMC) approach. The results of this study reveal a series of correlations between ecosystem services and lead to four distinct conclusions. First, the amount of variation between 2000 and 2012 in each LULC type within the TRHR was small. In particular, grassland substitution occurred in high-altitude areas and increased in central areas. Second, NPP, water yield, soil conservation amount and the volume of exported phosphorus (P) decreased along an east-west gradient with values of 64.44%, 38.81%, 7.37% and −49.98% recorded, respectively, between 2000 and 2012. The ecosystem services of the Yellow River basin to the east of the TRHR generally improved over the study period, while those of the Yangtze River and Lancang River basins where enhanced to a lesser extent, and obvious degradation was observed in some local areas. Third, the ecosystem services provided by forested land were highest, followed by grassland and cultivated land, respectively. Fourth, synergistic relationships were observed within the TRHR between NPP, water yield and soil conservation amount, indicating that increasing NPP simultaneously increased the values for these related factors. Synergistic relationships were also recorded between water yield and the amount of exported P, suggesting that increases in the former cause a reduction in water purity.

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Section: Relationships Between Trhr Ecosystem Servicesmentioning

confidence: 99%

Trade-Offs and Synergies in Ecosystem Service within the Three-Rivers Headwater Region, China

Han

Song

Deng

et al. 2017

Water

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“…Furthermore, in most previous studies, the main study areas were large cities, such as Tokyo 16 , Shanghai 17 , Bangkok 18 , and the main research content was the effect of urbanisation-related land changes and urban heat island effect in these cities on LST 19 . Only a few studies have been conducted about the relationship among LST, LUCC and NDVI in karst areas characterised by unique geographical features and fragile ecological environment 20,21 , particularly in economically poor karst areas with serious rocky desertification caused by soil erosion 22,23 . LST is an important factor to reflect the environmental changes of the underlying surface and the physical and chemical processes in karst area.…”

Section: Introductionmentioning

confidence: 99%

Relationship among land surface temperature and LUCC, NDVI in typical karst area

Deng

Wang

Bai

et al. 2018

Sci Rep

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197

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Land surface temperature (LST) can reflect the land surface water-heat exchange process comprehensively, which is considerably significant to the study of environmental change. However, research about LST in karst mountain areas with complex topography is scarce. Therefore, we retrieved the LST in a karst mountain area from Landsat 8 data and explored its relationships with LUCC and NDVI. The results showed that LST of the study area was noticeably affected by altitude and underlying surface type. In summer, abnormal high-temperature zones were observed in the study area, perhaps due to karst rocky desertification. LSTs among different land use types significantly differed with the highest in construction land and the lowest in woodland. The spatial distributions of NDVI and LST exhibited opposite patterns. Under the spatial combination of different land use types, the LST–NDVI feature space showed an obtuse-angled triangle shape and showed a negative linear correlation after removing water body data. In summary, the LST can be retrieved well by the atmospheric correction model from Landsat 8 data. Moreover, the LST of the karst mountain area is controlled by altitude, underlying surface type and aspect. This study provides a reference for land use planning, ecological environment restoration in karst areas.

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“…B. Li et al, 2016;Wang et al, 2016;Wu et al, 2016) because of the complicated natural conditions (Bai et al, 2013a, b;Tian et al, 2016). Therefore, it is necessary for ecology and soil erosion research in karst areas to explore the spatial evolution characteristics of soil erosion and their influencing factors in a karst area.…”

Section: Introductionmentioning

confidence: 99%

Soil erosion evolution and spatial correlation analysis in a typical karst geomorphology using RUSLE with GIS

et al. 2017

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Abstract. Although some scholars have studied soil erosion in karst landforms, analyses of the spatial and temporal evolution of soil erosion and correlation analyses with spatial elements have been insufficient. The lack of research has led to an inaccurate assessment of environmental effects, especially in the mountainous area of Wuling in China. Soil erosion and rocky desertification in this area influence the survival and sustainability of a population of 0.22 billion people. This paper analyzes the spatiotemporal evolution of soil erosion and explores its relationship with rocky desertification using GIS technology and the revised universal soil loss equation (RUSLE). Furthermore, this paper analyzes the relationship between soil erosion and major natural elements in southern China. The results are as follows: (1) from 2000 to 2013, the proportion of the area experiencing micro-erosion and mild erosion was at increasing risk in contrast to areas where moderate and high erosion are decreasing. The area changes in this time sequence reflect moderate to high levels of erosion tending to convert into micro-erosion and mild erosion. (2) The soil erosion area on the slope, at 15-35 • , accounted for 60.59 % of the total erosion area, and the corresponding soil erosion accounted for 40.44 %. (3) The annual erosion rate in the karst region decreased much faster than in the non-karst region. Soil erosion in all of the rock outcrop areas indicates an improving trend, and dynamic changes in soil erosion significantly differ among the various lithological distribution belts. (4) The soil erosion rate decreased in the rocky desertification regions, to below moderate levels, but increased in the severe rocky desertification areas. The temporal and spatial variations in soil erosion gradually decreased in the study area. Differences in the spatial distribution between lithology and rocky desertification induced extensive soil loss. As rocky desertification became worse, the erosion modulus decreased and the decreasing rate of annual erosion slowed.

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Trade-offs among ecosystem services in a typical Karst watershed, SW China

Cited by 125 publications

References 50 publications

Trade-Offs and Synergies in Ecosystem Service within the Three-Rivers Headwater Region, China

Trade-Offs and Synergies in Ecosystem Service within the Three-Rivers Headwater Region, China

Relationship among land surface temperature and LUCC, NDVI in typical karst area

Soil erosion evolution and spatial correlation analysis in a typical karst geomorphology using RUSLE with GIS

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