Study on the evolution of land use function of basins based on land use change in Guizhou Province, China

Explicitly Analyze the Soil Erosion in the Karst and Non-Karst Area of Different Morphological Types in Guizhou of China

“…On the other hand, the severe, extremely strong and intense soil erosion in karst area is mainly concentrated in the middle and high mountains areas, and the relative change rate of soil erosion in these areas is relatively high, which reflects that the ecological restoration project has achieved good ecological effect in karst area. In addition, due to the rapid development of urbanization in the central basin and hilly areas along the Zunyi-Guiyang-Anshun line, the construction land has expanded greatly (increased by 1029.86 km 2 from 2010 to 2015), mainly from cultivated land (Cheng et al 2019;Cheng et al 2018), which makes the relative change rate of soil erosion from mild to slight erosion in this area is in a high state. From the overall situation, because the slopes of middle mountains and middle and high mountains areas in Guizhou Province are basically above 25 ° and the terrain fluctuates greatly, coupled with the implementation of ecological restoration projects such as slope farmland conversion and rocky desertification control, the dynamic degree of soil erosion intensity change in this area is the strongest.…”

Dynamic simulation and conflict identification analysis of production–living–ecological space in Wuhan, Central China

“…The cold and hot spot model compares the sum value of an element and its surrounding elements with the sum of all the elements (Li et al, 2018). The Getis‐Ord Gi* model is used to estimate the spatial agglomeration of similar locations in PLES conflicts, that is, different spatial locations exhibit high‐ and low‐value clusters (Chen et al, 2019). See the following equations: $$${{G}_{i}}^{* }=\frac{\sum _{j=1}^{n}{W}_{i,j}{X}_{j}-\mathop{X}\limits^{̅}\sum _{j=1}^{n}{W}_{i,j}}{S\sqrt{\frac{n\sum _{j=1}^{n}{{W}_{{ij}}}^{2}-{(\sum _{j=1}^{n}{W}_{i,j})}^{2}}{n-1}}},$$$ $$$\mathop{X}\limits^{̅}=\sum _{j=1}^{n}{X}_{j}/n,$$$ $$$S=\sqrt{\frac{\sum _{j=1}^{n}{{X}_{j}}^{2}}{n}}-{(\mathop{X}\limits^{̅})}^{2},$$$where n is the number of number points; X j is the density of element j ; and W ij is the spatial weight between elements i and j .…”

“…The cold and hot spot model compares the sum value of an element and its surrounding elements with the sum of all the elements (Li et al, 2018). The Getis-Ord Gi* model is used to estimate the spatial agglomeration of similar locations in PLES conflicts, that is, different spatial locations exhibit high-and low-value clusters (Chen et al, 2019). See the following equations:…”

Transformation of Paddy Field Use in Intermountain-Type Basins Using Evidence from the Structure and Function Perspective of Karst Mountain Areas in Southwest China

“…The land use of IB mainly comprises traditional agricultural cultivation, and the mainland type is paddy fields [44]. With the rapid progress of social and economic transformation and urbanization via measures such as land consolidation, land transfer, planting structure, and industrial structure adjustment, the land use of IBs has evolved in a diversified manner, and land use function has gradually shown diversified transformation [45,46]. IB agriculture gradually developed from traditional to modern-scale agriculture, and IB land use exhibits gradual transformations.…”

“…In particular, with social and economic development, the implementation of policies such as the new urbanization plan, and the rural revitalization strategy, a large amount of cultivated land has been occupied by constructing towns and infrastructure. At the same time, driven by market demand, many residential lands within the basin have been internalized for farmhouse enjoyment, and farmhouse hotels and their residential and living functions have gradually shifted to production-living functions [45,49]. The traditional agricultural production functions of IB have been transformed into modernscale facility agricultural production and tourism functions.…”