Quantifying embodied cultivated land-use change and its socioeconomic driving forces in China

Using GIS and such models as dynamic degree, analyzed the land-use change in Qingdao according to the statistics of land-use data from 2000 to 2010 years and based on these, the author selects eight natural and socio-economic indexes, and takes districts as the study unit to calculate the driving force indexes with the fuzzy comprehensive evaluation method, and makes the spatial-division thematic maps of the driving forces which cause the land-use change in this region base on GIS. The results show that in Qingdao the land-use types which have the largest change rate is residential area and mining sites, followed by the unused land, water and cultivated land, and the garden plot is the smallest. There is a decreasing of cultivated land and unused land while other types have increased; because of a large base number, cultivated land reduces most among all land-use types. There exists a big spatial difference among these driving forces for land-use change. According the driving force indexes we divided them into four regions.

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Multi-Scenario Analysis of Habitat Quality in the Yellow River Delta by Coupling FLUS with InVEST Model

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18052389 ◽

2021 ◽

Vol 18 (5) ◽

pp. 2389

Author(s):

Qinglong Ding ◽

Yang Chen ◽

Lingtong Bu ◽

Yanmei Ye

Keyword(s):

Land Use ◽

Land Use Change ◽

Habitat Quality ◽

Scenario Analysis ◽

Yellow River ◽

The Yellow River ◽

Cultivated Land ◽

Invest Model ◽

Unused Land ◽

Dongying City

The past decades were witnessing unprecedented habitat degradation across the globe. It thus is of great significance to investigate the impacts of land use change on habitat quality in the context of rapid urbanization, particularly in developing countries. However, rare studies were conducted to predict the spatiotemporal distribution of habitat quality under multiple future land use scenarios. In this paper, we established a framework by coupling the future land use simulation (FLUS) model with the Intergrated Valuation of Environmental Services and Tradeoffs (InVEST) model. We then analyzed the habitat quality change in Dongying City in 2030 under four scenarios: business as usual (BAU), fast cultivated land expansion scenario (FCLE), ecological security scenario (ES) and sustainable development scenario (SD). We found that the land use change in Dongying City, driven by urbanization and agricultural reclamation, was mainly characterized by the transfer of cultivated land, construction land and unused land; the area of unused land was significantly reduced. While the habitat quality in Dongying City showed a degradative trend from 2009 to 2017, it will be improved from 2017 to 2030 under four scenarios. The high-quality habitat will be mainly distributed in the Yellow River Estuary and coastal areas, and the areas with low-quality habitat will be concentrated in the central and southern regions. Multi-scenario analysis shows that the SD will have the highest habitat quality, while the BAU scenario will have the lowest. It is interesting that the ES scenario fails to have the highest capacity to protect habitat quality, which may be related to the excessive saline alkali land. Appropriate reclamation of the unused land is conducive to cultivated land protection and food security, but also improving the habitat quality and giving play to the versatility and multidimensional value of the agricultural landscape. This shows that the SD of comprehensive coordination of urban development, agricultural development and ecological protection is an effective way to maintain the habitat quality and biodiversity.

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Characteristics and Driving Forces of Land Use Change in Karst Area of Central Yunnan Province

Geographical Science Research ◽

10.12677/gser.2021.103035 ◽

2021 ◽

Vol 10 (03) ◽

pp. 295-304

Author(s):

晓红彭

Keyword(s):

Land Use ◽

Land Use Change ◽

Yunnan Province ◽

Driving Forces ◽

Karst Area

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Land Use Change and Its Driving Forces in the Koshi Hills, Eastern Nepal

Springer Geography - Land Cover Change and Its Eco-environmental Responses in Nepal ◽

10.1007/978-981-10-2890-8_4 ◽

2017 ◽

pp. 67-108

Author(s):

Pushkar K. Pradhan ◽

Puspa Sharma

Keyword(s):

Land Use ◽

Land Use Change ◽

Driving Forces

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Landscape dynamics in the northeast part of Andhikhola watershed, Middle hills of Nepal

Geographical Journal of Nepal ◽

10.3126/gjn.v12i1.23415 ◽

2019 ◽

Vol 12 ◽

pp. 41-56

Author(s):

Chhabi Lal Chidi ◽

Wolfgang Sulzer ◽

Pushkar Kumar Pradhan

Keyword(s):

Land Use ◽

Image Analysis ◽

High Resolution ◽

Land Use Change ◽

Land Abandonment ◽

Cultivated Land ◽

Land Use Classification ◽

Object Based Image Analysis ◽

Object Based ◽

Hill Slope

Depopulation and increasing greenery due to agriculture land abandonment is general scenario in many highlands of Nepal in recent decades. High resolution remote sensing image is used in land use change analysis. Recently, object based image analysis technique has helped to improve the land use classification accuracies using object based image analysis. Thus, this study was carried out with high resolution image data sources and innovative technique of land use classification in the northeast part of Andhikhola watershed, in the Middle Hill of Nepal. Increasing greenery due to agriculture land abandonment in the hill slope is the major land use change. Secondly, increasing built-up area in lowland along the highway is another. Decreasing hill farmers is the major drivers of converting cultivated land into vegetated area and increasing built-up area is due to urbanization and shift of rural people from hill slope to lowland and accessible area. Converting cultivated land into forest, shrubs and grassland is at marginal land and remote areas which is mostly controlled by altitude, slope gradient and slope aspect. Additionally, land suitability and accessibility are also other important controlling factors.

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The Effect of Land Use Systems on Soil Properties; A case study from Rwanda

Sustainable Agriculture Research ◽

10.5539/sar.v7n2p30 ◽

2018 ◽

Vol 7 (2) ◽

pp. 30 ◽

Cited By ~ 6

Author(s):

Theobald Bizuhoraho ◽

Alexis Kayiranga ◽

Noel Manirakiza ◽

Khaldoon A. Mourad

Keyword(s):

Land Use ◽

Organic Matter ◽

Land Use Change ◽

Physicochemical Properties ◽

Bulk Density ◽

Sustainable Land Use ◽

Available Phosphorus ◽

Cultivated Land ◽

Exchangeable Potassium ◽

Available Nitrogen

Land use change has a significant impact on the ecosystem. In this paper the effects of land use change on the physicochemical properties of the soil in Rulindo District, Rwanda have been studied. Three different land use types were selected; forestland, cattle farmland and cultivated land. A randomised complete block research design was used to carry out this research. Nine soil samples were collected and then analysed. The distributed samples were analysed in the Soil Laboratory of University of Rwanda-Busogo campus, while the undisturbed samples were analysed in-situ. Eight physicochemical properties were measured: pH, Organic Matter (OM), available nitrogen, available phosphorus, exchangeable potassium, soil bulk density, moisture content and porosity. The results showed that changing land use from forest or farm to cultivated land reduced the organic matter, available nitrogen, soil moisture and porosity while bulk density and pH were significantly increasing. On the other hand, the exchangeable potassium and exchangeable phosphorus did not change significantly for the both land use changes. Hence, the reduction of forestland and farmland are highly sensible to erosion and will decline soil fertility. The paper proposed few steps and recommendations to be the base for a new sustainable land use management in Rwanda.

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