A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China

Lyu, Jing; Mo, Shuhong; Luo, Pingping; Zhou, Meimei; Shen, Bing; Nover, Daniel

doi:10.1016/j.quaint.2019.03.027

Cited by 53 publications

(39 citation statements)

References 36 publications

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“…The correlation analysis of water yield, precipitation, and actual evapotranspiration showed that precipitation is the main driving factor (r > 0.934; p < 0.01) for water yield (Table 4). This result was consistent with the results of previous studies [28,50,67]. However, the results were different from those of Wang and Dai [62]; our results indicated that actual evapotranspiration is positively correlated with water yield (r > 0.514; p < 0.01).…”

Section: Drivers Of Changes In Ecosystem Servicessupporting

confidence: 83%

“…However, the proportion is very small, thereby indicating that the TSTB are affected by climate change. In terms of temporal changes, the water yield was positively correlated with precipitation (r > 0.862; p < 0.01) under both RCP scenarios from 2010 to 2050 (Table 5), which showed that precipitation was the main driving factor affecting water yield [67]. The increased precipitation led to the increased water yield, and under RCP8.5 scenario, more precipitation resulted in a higher water yield.…”

Section: Drivers Of Changes In Ecosystem Servicesmentioning

confidence: 91%

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Simulating the Impact of Future Climate Change and Ecological Restoration on Trade-Offs and Synergies of Ecosystem Services in Two Ecological Shelters and Three Belts in China

Wang

Qiao

et al. 2020

IJERPH

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Development of suitable ecological protection and restoration policies for sustainable management needs to assess the potential impacts of future land use and climate change on ecosystem services. The two ecological shelters and three belts (TSTB) are significant for improving ecosystem services and ensuring China’s and global ecological security. In this study, we simulated land use in 2050 and estimated the spatial distribution pattern of net primary productivity (NPP), water yield, and soil conservation from 2010 to 2050 under future climate change. The results showed that water yield, NPP, and soil conservation exhibited a spatial pattern of decreasing from southeast to northwest, while in terms of the temporal pattern, water yield and NPP increased, but soil conservation decreased. Water yield was mainly influenced by precipitation, NPP was affected by temperature and implementation of ecological restoration, and soil conservation was controlled by precipitation and slope. There was a strong spatial heterogeneity between trade-offs and synergies. In terms of the temporal, with the combination of climate change and ecological restoration, there was a synergistic relationship between water yield and NPP. However, the relationships between water yield and soil conservation, and between NPP and soil conservation were characterized by trade-offs. In the process of ecological construction, it is necessary to consider the differences between overall and local trade-offs and synergies, as well as formulate sustainable ecological management policies according to local conditions. Understanding the response of ecosystem services to future climate change and land use policies can help address the challenges posed by climate change and achieve sustainable management of natural resources.

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Section: Drivers Of Changes In Ecosystem Servicessupporting

confidence: 83%

Section: Drivers Of Changes In Ecosystem Servicesmentioning

confidence: 91%

Simulating the Impact of Future Climate Change and Ecological Restoration on Trade-Offs and Synergies of Ecosystem Services in Two Ecological Shelters and Three Belts in China

Wang

Qiao

et al. 2020

IJERPH

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“…Considering the above discussion regarding the comprehensive spatial characteristic identification of ecosystem service value in the study area, it is expected that the Northern Tianshan region will be adversely affected by human activities and policy implementation, The contradiction between ecology-economy-development is prominent in the region, which in turn affects the structure and function of the entire arid area ecosystem [60,61]. While the present study focuses on regional land use structure changes and analyzes the temporal and spatial differentiation characteristics of ecosystem service value, an analysis of nature, society and potential policy-driving forces has yet to be done.…”

Section: Discussionmentioning

confidence: 99%

Evaluation on the Change Characteristics of Ecosystem Service Function in the Northern Xinjiang Based on Land Use Change

et al. 2021

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Monitoring the interannual changes in land use and the temporal and spatial characteristics of the ecosystem services value (ESV) can help to comprehensively and objectively understand the distribution of regional ecological patterns. The mountain–oasis–desert transition zone in the northern Tianshan Mountain region of Xinjiang, China, is a geographically unique area with a highly sensitive ecosystem. As a data source, the study uses Landsat TM images from 1990, 2000, 2010, and 2018 along with GIS-extracted data to calculate the dynamic degree of land use. As well, the spatial and temporal patterns of land use change and ESV are quantitatively analyzed by using the equivalent factor method, sensitivity index, and spatial correlation studies. The results reveal the following: (1) From 1990 to 2018, the land use changes in the northern Tianshans are relatively drastic, mainly due to the increase in cultivated land, grassland and construction land, and the decrease in forest land, water, and unused land. (2) The ESV increases and then decreases, for a total loss of about 271.63 × 108 yuan. The largest decrease is in forest value, and the largest increase (around 129.94%) is in construction land. (3) The spatial distribution pattern of ESV in the northern Tianshans is apparent, showing high in the north and southwest, and low in the central and southeast portions of the study area. Additionally, there is a visible spatial correlation and aggregation in ESV. The present research can provide theoretical support for the environmental protection of the ecologically vulnerable area of the northern Tianshans as well as for further construction across the region.

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“…The Mann‐Kendall test (Equations ) and ()) discerns whether there is a monotonic upward or downward trend. The significance of the trend is evaluated using the Z statistic with a threshold of ±1.96, depending on whether the trend is positive or negative (Lyu et al, 2009). Furthermore, it has the advantage of being a non‐parametric test, that is, it does not require that the data come from a normal distribution.

S = \sum_{k = 1}^{n - 1} \sum_{j = k + 1}^{n} italicsign ((), x_{j} - x_{k}),

italicsign ((), x_{j} - x_{k}) = ({, \begin{matrix} 1 italicif x_{j} - x_{k} > 0 \\ 0 italicif x_{j} - x_{k} = 0 \\ - 1 italicif x_{j} - x_{k} < 0 \end{matrix}),

where x j and x k , represent consecutive values.…”

Section: Methodsmentioning

confidence: 99%

Stabilization of stage–discharge curves following the establishment of forest plantations: Implications for sediment production

Pizarro

García‐Chevesich

Pino

et al. 2020

River Research & Apps

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The Purapel watershed in central Chile has experienced drastic land‐use changes since the 1950s, beginning with the conversion of native forests to forest plantations. Controversy exists on the effects of reforestation on sediment production in watersheds. The temporal evolution of stage–discharge curves and sediment production was evaluated and correlated with historic sediment deposition at the Purapel watershed's main gauging station. Annual stage–discharge curves and the evolution of the stage–discharge relationship over time were developed. Trends were generated using the Mann‐Kendall statistical test, comparing results with the evolution of sediment downstream. Obtained results denote a positive and significant trend at flows greater than 90 m3 s−1 (Z = 2.77). This can be explained by major flows that deepen the bed, which is consistent with a significant and sustained decrease in channel width (Z = −2.51) and the production of sediments (Z = −2.49). Similarly, the average annual number of curves decreased from 1.7 to 1.4. This analysis supports the conclusion that sediment production from the Purapel watershed drastically decreased after the majority of forest plantations were established around 1990, with important implications on how to retain sediments on degraded slopes through large‐scale afforestation projects, as well as the necessary politics to make it happen.

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A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China

Cited by 53 publications

References 36 publications

Simulating the Impact of Future Climate Change and Ecological Restoration on Trade-Offs and Synergies of Ecosystem Services in Two Ecological Shelters and Three Belts in China

Simulating the Impact of Future Climate Change and Ecological Restoration on Trade-Offs and Synergies of Ecosystem Services in Two Ecological Shelters and Three Belts in China

Evaluation on the Change Characteristics of Ecosystem Service Function in the Northern Xinjiang Based on Land Use Change

Stabilization of stage–discharge curves following the establishment of forest plantations: Implications for sediment production

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