An ecological benefit assessment of the Grain for Green Project in Shaanxi Province

Shengtao, 刘胜涛 Liu; Xiang, 牛香 Niu; Bing, 王兵 Wang; Qingfeng, 宋庆丰 Song; Yuzhu, 陶玉柱 Tao

doi:10.5846/stxb201707261342

Cited by 4 publications

(5 citation statements)

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“…Among China's provinces, Shaanxi Province has severe soil erosion and a fragile ecological environment. As one of the earliest pilot provinces to implement the GGP, Shaanxi Province has achieved some results [43,44].…”

Section: Study Areamentioning

confidence: 99%

Spatial and Temporal Evolution of Ecosystem Service Value in Shaanxi Province against the Backdrop of Grain for Green

Zhang

2022

Forests

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The Grain for Green Project (GGP) has influenced Shaanxi Province’s land-use pattern, resulting in a shift in ecosystem service value (ESV). Exploring the spatial and temporal evolution of the pattern of land use and ESV in Shaanxi Province, before and after the project’s implementation, can give a theoretical foundation for regional land-use planning. For this study, we used the transfer matrix and the value equivalent approaches to investigate the influence of project implementation on the spatial distribution and evolution of patterns of land use and ESV in Shaanxi Province based on four periods of land-use data from 1990 to 2020. The results suggest the following: (1) Farmland, forestland, and grassland were the most common land-types in Shaanxi Province. Farmland, forestland, and grassland in Shaanxi Province were all altered dramatically over the research period due to the GGP. Farmland was turned mostly into forestland and grassland, and forestland and grassland areas progressively grew. (2) The ESVs in Shaanxi Province were USD 3802.82, 3814.90, 3836.20, and 3806.50 billion in 1990, 2000, 2010, and 2020, respectively. The most value was supplied by hydrological management, while water resources provided the lowest value. Forestland and grassland were the most valuable land-types in high-value locations, whereas built-up land was the most valuable land-type in low-value areas. (3) While the GGP has increased the ESV of forestland and grassland, it has harmed the acreage of other land-types, resulting in a decline in the total ESV in Shaanxi Province.

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Section: Study Areamentioning

confidence: 99%

Spatial and Temporal Evolution of Ecosystem Service Value in Shaanxi Province against the Backdrop of Grain for Green

Zhang

2022

Forests

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“…From 1990 to 2020, the mean value of habitat quality in the northern foot of the Qinling Mountains decreased slightly, showing an overall trend of first increasing and then decreasing. The areas with improved habitat quality are mainly concentrated in the north and central regions, these areas are supported by a series of ecological protection policies such as returning farmland to forests, naturally protected forest (Liu et al, 2018). Therefore, the land use in this region has mostly shifted from arable land to forest land.…”

Section: The Relationship Of Land Use Change and Habitat Qualitymentioning

confidence: 99%

“…However, there is a clear boundary between medium and high habitat quality in the northern foothills of the Qinling Mountains, distributed in the central region, and the habitat quality in this region is continuously improving. This indicates that the government has to some extent clarified the boundary between human activities and nature, and has constrained the scope of human activities through a series of measures such as returning farmland to forests, demolishing illegal buildings, and establishing nature reserves (Liu et al, 2018;Chen, 2019). In addition, as the growth rate of China's population slows down, the scale of urban expansion tends to stabilize (Hou et al, 2022), which will provide favorable conditions for the continuous improvement of habitat quality in the region.…”

Section: The Relationship Of Land Use Change and Habitat Qualitymentioning

confidence: 99%

Study of spatiotemporal variation and driving factors of habitat quality in the northern foothills of the Qinling Mountains: a case study of Xi’an, China

Ma,

Wang,

Wang

et al. 2023

Front. Ecol. Evol.

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As earth surface human activities become more frequent, global ecosystem service functions and especially biodiversity maintenance functions are challenged. This study aimed to analyze spatiotemporal changes in Xi‘an section of the northern foothills of the Qinling Mountains from 1990 to 2020. Temporal and spatial changes in habitat quality in the study area were visualized using InVEST model and land use data, and factors affecting habitat quality were analyzed using Geodetector. The results showed that during the study period, the cultivated land, grassland, and water decreased by 16.40%, 74.37%, and 35.39%, respectively, while the area of forest land and construction land increased, among which the construction land increased by 117.70%, the largest increase, and the forest land increased by 8.47%. The main changes in land use are the conversion of cultivated land into forest land and construction land, and the conversion of grassland into forest land and cultivated land. During the period 1990–2020, the average habitat quality index in the study area changed from 0.8617 to 0.8585, showing a slow decreasing trend. The spatial distribution of habitat quality showed a trend of “high in the south, moderate in the north, and low in the northwest”. The high habitat quality was mainly concentrated in the southern forest land, the middle habitat quality was mainly distributed in the northern cultivated land, and the low habitat quality was mainly distributed in the northwest construction land. The land use type has a great influence on habitat quality, and the interaction between any two factors is stronger than that of a single factor. The temporal and spatial variation of habitat quality is influenced by both natural and human factors. This study provides a theoretical basis for ecological protection and nature reserve planning in the Qinling Mountains region.

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confidence: 97%

“…Spatially, ET exhibited an increasing trend from northwest to southeast (Figure5e), which was similar to the spatial distribution pattern of vegetation coverage on the Loess Plateau. Related studies also suggested that the type and structure of the vegetation may have a significant impact on ET[35].In considering the spatial heterogeneity in the Loess Plateau affected by land use/cover change and climate change, we also conducted a trend analysis during the 2001-2020 period (Figure5f). The annual variation rates of ET in the ranges of −30~0 mm/yr and 0~30 mm/yr accounted for 10.73% and 89.12%, respectively.…”

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confidence: 99%

Dynamic Changes in Terrestrial Water Balance Using Remote Sensing on the Loess Plateau

Lu,

Zheng,

Cao

et al. 2024

Water

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In recent decades, the water cycle process in the Loess Plateau has undergone drastic changes under the influence of anthropogenic disturbance and climate variability. The Loess Plateau has been greatly affected by human activities and climate change, and the dynamics of water balance and its key influencing factors remain unknown in this region. To deepen our understanding of water resource status in the Loess Plateau, we analyzed the dynamic changes in the hydrological cycle components and terrestrial water balance via remote sensing during the 2001–2020 period. Moreover, we also discussed the dominant factors affecting the terrestrial water balance. The results indicate that precipitation and ET exhibited increasing trends, with upward rates of 2.56 mm/yr and 5.27 mm/yr, respectively. Spatially, the annual average precipitation and ET showed increasing trends from the north to south. Precipitation in 62.05% of the entire region presented a significant upward trend, with a change rate of 0~2 mm/yr, and the annual change rate of ET in a range of 0~30 mm/year accounted for 89.12%. The runoff exhibited a fluctuating and significantly upward trend during the 2000–2022 period, with a change rate of 3.92 × 108 m3/yr, and was relatively large in the middle reach of the Yellow River. The annual average water consumption in the upper reach of the YRB presented a significant decreasing trend, with a downward rate of −0.06 × 108 m3/yr from 2001 to 2020, and yet it displayed a significant increasing trend in the middle and lower reaches of the YRB with the upward rate of 0.07~0.11 × 108 m3/yr. Based on the principle of water balance, the recharge amount was calculated at less than the discharge amount during the 2001–2020 period, and the difference between recharge and discharge is gradually expanding, with a change rate of −3.72 × 108 m3/yr. The spatial distributions of TWSC revealed that the eastern region was in an imbalanced state, while the western region was in a relatively balanced state. Terrestrial water balance changes were mainly affected by climate factors and human disturbance, and land use/cover change was the dominant factor. The results will be of great significance for optimizing water resource management and formulating various water-saving strategies in the Loess Plateau.

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An ecological benefit assessment of the Grain for Green Project in Shaanxi Province

Cited by 4 publications

References 0 publications

Spatial and Temporal Evolution of Ecosystem Service Value in Shaanxi Province against the Backdrop of Grain for Green

Spatial and Temporal Evolution of Ecosystem Service Value in Shaanxi Province against the Backdrop of Grain for Green

Study of spatiotemporal variation and driving factors of habitat quality in the northern foothills of the Qinling Mountains: a case study of Xi’an, China

Dynamic Changes in Terrestrial Water Balance Using Remote Sensing on the Loess Plateau

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