Reconstruction of cultivated land pattern in the upper reaches of the Yellow River in the late Northern Song Dynasty:Take Hehuang Valley as an example

Guo, Rong; Liu, Fenggui; Chen, Qiong; Zhou, Qiang; Gu, Xi-jing; Cai, Xiang-cuo-mao

doi:10.31497/zrzyxb.20210102

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…During the Song Dynasty, according to Qing Tang Record, only a few clusters of pine trees were observed along the Huangshui River. The total cropland area in Hehuang Valley was approximately 305 km 2 , congruent with Tang Dynasty (Guo et al, 2021). By the Ming Dynasty, the population had increased rapidly in the area (Cui et al, 1999;Zhang et al, 2016).…”

Section: Environmental Impacts During the Historical Timementioning

confidence: 99%

Reconstruction of Cultivated Land in the Northeast Margin of Qinghai–Tibetan Plateau and Anthropogenic Impacts on Palaeo-Environment During the Mid-Holocene

et al. 2021

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The study of past global change is paramount to comprehending the present and future, as well as to better understand the mechanisms and influences of human–land interactions in a given region. The northeastern margin of the Qinghai–Tibetan Plateau has complex natural environments, sensitive to global change, and renowned for its long history of human occupancy. This makes it an ideal region for the study of anthropogenic impacts on the paleo-natural environment. This paper reconstructed the prehistoric temporal and spatial distribution of cultivated lands on the northeast margin of Qinghai–Tibetan Plateau, and analyzed the Dianziping pollen assemblage to disclose the anthropogenic impacts on the paleo-environment. The results demonstrated that around 4.3–4.0 cal ka BP, the rapid development of the Majiayao culture boosted the population to approximately 39,200 people, over 460 km2 of the land area was converted to cropland, concomitantly, evidence of tree pollen decreased significantly. This marked the earliest identification of anthropogenic impacts on vegetation through agricultural activity in this region. At 4.0–3.6 cal ka BP, the population appeared to have diminished in conjunction with the cultivated land area. Nevertheless, forested areas continued to decrease, primarily due to adverse climatic conditions, but, anthropogenic activities played an undeniable role. Dianziping profile demonstrated the existence of natural forest in the Hehuang Valley during Qijia cultural Period. There was also evidence for the occurrence of regional fire events, suggesting large-scale burning of land cover in the area. This further illustrates anthropogenic impacts. At 3.6–2.6 cal ka BP, populations reached approximately 61,300 people, coinciding with the peak of cropland expansion. Consequently, more of the natural vegetation were converted to crops, and the superimposed influences of farming and grazing aggravated the process of deforestation and vegetation succession. Likewise, deforestation during the historical period can be explained, mostly by human driven causes with limited influence from climatic factors. The extensive exploitation of forest and expansion of cropland consequently resulted in extensive land deterioration, leaving the region with forest islands scattered in less populated, mountainous regions.

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Section: Environmental Impacts During the Historical Timementioning

confidence: 99%

Reconstruction of Cultivated Land in the Northeast Margin of Qinghai–Tibetan Plateau and Anthropogenic Impacts on Palaeo-Environment During the Mid-Holocene

et al. 2021

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“…Summarizing the findings of the studies mentioned above, the research domain primarily encompasses specific regions within the contemporary YRB, encompassing the Loess Plateau [48,52], North China Plain [50,51], the middle and lower reaches [35,45], Hehuang Valley [46,47,53,54], and provinces [49]. The temporal scope spans from the mid-Holocene to recent centuries or a particular historical year.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Characteristics of Land Cover Change in the Yellow River Basin over the Past Millennium

Wang,

Yang,

2024

Land

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Investigating the ecological and environmental impacts stemming from historical land use and land cover change (LUCC) holds paramount importance in systematically comprehending the fundamental human-land relationship, a pivotal focus within geographical research. The Yellow River Basin (YRB), often referred to as the cradle of Chinese civilization, ranks as the fifth-largest river basin globally. Early inhabitants made significant alterations to the landscape, resulting in substantial damage to natural vegetation, giving rise to prominent regional ecological challenges. By now, the examination of historical LUCC in the YRB over the past millennium remains in the qualitative research stage, primarily due to the limited availability of high-confidence gridded historical LUCC data. This study aims to advance the current historical LUCC research in the YRB from primarily qualitative analysis to an exploration incorporating timing, positioning, and quantification. Based on reconstructed historical cropland, forest, and grassland grid data of 10 km × 10 km from 1000 AD to 2000 AD, the degree of cropland development and the depletion of forests and grasslands were calculated, respectively. Then, the kernel density method was employed for spatiotemporal analysis and interpretation of dynamic changes in land cover. Subsequently, a cartographic visualization depicting the migration trajectories of the land cover gravity centers was generated, allowing for an assessment of the distance and direction of the centroids’ movement of cropland, forest, and grassland. The results indicate that the cropland coverage in the YRB escalated from the initial 11.65% to 29.97%, while the forest and grassland coverage dropped from 63.36% to 44.49%. The distribution of cultivated land continually expanded outward from the southeast of the Loess Plateau and the southwest of the North China Plain. All three types of land cover experienced a westward shift in their gravity centers between 1000 and 2000 AD. Besides the population growth and technological advancements, the regime shifts induced by wars, along with land use policies in distinct periods, always served as the predominant factors influencing the conversion between different land covers. This research will present a paradigmatic regional case study contributing to the investigation of historical changes in land use and land cover. Additionally, it will offer historical perspectives beneficial for the advancement of China’s objectives in “Ecological Conservation and High-Quality Development of the Yellow River Basin”.

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“…Based on the national major development strategic background of ecological protection and highquality development in the Yellow River Basin, how to scientifically and reasonably solve the problems of cultivated land utilization and grain production in the lower reaches of the Yellow River Basin is a realistic problem that the society generally pays attention to and needs to solve urgently. Looking at the related research on the Yellow River Basin at home and abroad, the research areas are mainly concentrated in Ningxia (Wen et al, 2018), Shanxi (Liu and Ma, 2003), Henan (Zhang et al, 2017), Yellow River Delta (Li et al, 2019), Shaanxi (Zhang et al, 2020;Wei et al, 2021), and the research fields are mainly concentrated in cultivated land quality protection (Wang and Guo, 2020), cultivated land reconstruction in historical period (Guo et al, 2021), cultivated land temporal and spatial change (Han et al, 2021), water-energy-grain coupling development (Xu et al, 2021), and so on. Based on this, with the help of GIS technology and GlobeLand30 data in 2000, 2010 and 2020, this paper studies the spatial pattern and temporal and spatial changes of cultivated land resources and grain production in the lower reaches of the Yellow River, in order to provide basis for scientific management decisionmaking of cultivated land use and food safety production in Shandong Province and even the Yellow River Basin, and provide reference for promoting high-quality development of the Yellow River Basin.…”

Section: Introductionmentioning

confidence: 99%

Dynamic changes of cultivated land use and grain production in the lower reaches of the Yellow River based on GlobeLand30

Wang

Cheng²

2022

Front. Environ. Sci.

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The lower reaches of the Yellow River are China’s grain production base and ecological barrier. Its total grain production ranks third in China in 2021, and its cultivated land plays an extremely important role in ensuring food security in the Yellow River Basin and even the whole country. Based on the data of GlobeLand30 in 2000, 2010 and 2020, this study studied the spatial distribution of cultivated land use and the cultivated land transfer pattern, the spatial distribution concentration degree and directional distribution characteristics of cultivated land and grain production, and the sensitivity analysis of grain production to the change of cultivated land area in the lower reaches of the Yellow River by using the methods of land cover transfer matrix, spatial distribution concentration model, sensitivity analysis model, standard deviation ellipse model and spatial autocorrelation analysis. The results show that: 1) The land type with the largest area transferred from cultivated land in the lower Yellow River is artificial surface, and its regional distribution is scattered; At the same time, the land type with the largest area transferred into cultivated land is still artificial surface, which is directly related to the rural land remediation measures implemented by the government. 2) During the period from 2000 to 2020, the spatial distribution concentration index (HHI) grade of cultivated land in the lower reaches of the Yellow River was moderately concentrated and below, and there was no obvious concentration trend; the concentration degree of grain production distribution in the lower reaches of the Yellow River is higher than that of cultivated land, such as Rizhao, Dongying, Qingdao and Weihai, where the HHI grades of grain production are higher; The center of gravity of cultivated land in the lower reaches of the Yellow River is relatively stable, while the center of gravity of grain production shows an obvious trend of “westward shift”. 3) During 2000–2010, the grain productions of 68.38% of districts and counties were insensitive to the change of cultivated land, while the grain productions of 18 districts and counties were highly sensitive to the change of cultivated land, mostly distributed in the hilly and mountainous areas of central and southern Shandong; During 2010–2020, the proportion of insensitive districts and counties decreased to 36%, and the middle and high sensitive areas obviously showed a gradual decreasing trend. Based on GlobeLand30 remote sensing image technology, this study can effectively reveal the temporal and spatial dynamic changes of cultivated land use and grain production in the lower reaches of the Yellow River, and provide scientific reference for further rational development and utilization of cultivated land resources in the lower reaches of the Yellow River and promoting the high-quality development of the Yellow River Basin.

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Reconstruction of cultivated land pattern in the upper reaches of the Yellow River in the late Northern Song Dynasty:Take Hehuang Valley as an example

Cited by 4 publications

References 25 publications

Reconstruction of Cultivated Land in the Northeast Margin of Qinghai–Tibetan Plateau and Anthropogenic Impacts on Palaeo-Environment During the Mid-Holocene

Reconstruction of Cultivated Land in the Northeast Margin of Qinghai–Tibetan Plateau and Anthropogenic Impacts on Palaeo-Environment During the Mid-Holocene

Spatiotemporal Characteristics of Land Cover Change in the Yellow River Basin over the Past Millennium

Dynamic changes of cultivated land use and grain production in the lower reaches of the Yellow River based on GlobeLand30

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