# Study on Temporal and Spatial Distribution of Landslides in the Upper Reaches of the Yellow River
## 4 Spatial Distribution Characteristics of Giant Landslides in the Upper Reaches of the Yellow River  
Among the 508 landslides, they were classified according to the square amount of landslide deposits [26]. Super-large-scale landslides (with a square amount of landslide greater than \(1\times 10^{8}\) m\({}^{3}\)) accounted for 21 of them (Figure 9, Table 7). Large-scale land-slides (accumulation volume greater than \(1\times 10^{7}\) m\({}^{3}\)) accounted for 92 cases, and the rest were large-scale landslides or below. A detailed field investigation was conducted on the 21 giant landslides, such as the Xiangtan landslide, Baicetan landslide, Shenguotan landslide, mudflat landslide, and so on. It is considered that the spatial distribution of these giant landslides is very uneven in each basin, each section, and both sides of the main stream. The number of landslides in the cluster-Jianza basin is the largest, with 9 landslides, the largest residual square, and the highest density intensity. Followed by Xunhua Basin 3, Jishi Gorge area 3, Gonghe basin 3, Guide basin 2, and Gu  
Figure 8: Relationship between landslide length and average slope. Figure 9: Distribution map of DEM, active structure and giant landslide in the study area. \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline  & & & & & & **Relative** & & & \\
**Distribution** & **Landslide** & **Landslide** & **Longitude** & **Latitude** & **Difference between** & **Residual** & **Slope** \\  & **Number** & **Name** & **Longitude** & **Latitude** & **between** & **Volume/** & **Gradient/\({}^{\circ}\)** \\  & & & & & **Landslide** & \(\times\)108 m3 & **Gradient/\({}^{\circ}\)** \\  & & & & & **Front and** & **Back Edge** & & \\ \hline  & & Landslide on & & & & & & \\  & & the left bank & & & & & & \\  & & of Mangla & & & & & & \\  & & River & & & & & \\ \cline{2-8} Gonghe & & & White Thorn & & & & & \\ basin & HP2 & Beach & \(100^{\circ}30^{\prime}07^{\prime\prime}\) & \(35^{\circ}49^{\prime}11^{\prime\prime}\) & 538 & 2.84 & 40 \\  & & landslide & & & & & \\ \cline{2-8}  & & & Chana & landslide & \(100^{\circ}48^{\prime}49^{\prime\prime}\) & \(36^{\circ}05^{\prime}38^{\prime\prime}\) & 350 & 1.27 & 35 \\ \hline  & & HP4 & \( \begin{array}{c}\text{Ashgon}\\ \text{landslide}\end{array} \) & \(101^{\circ}34^{\prime}01^{\prime\prime}\) & \(36^{\circ}09^{\prime}07^{\prime\prime}\) & 556 & 1.60 & 40 \\ \cline{2-8} Guide basin & & & Xijitan & & & & & \\  & HP5 & \( \begin{array}{c}\text{Xijitan}\\ \text{slippery}\\ \text{landslide}\end{array} \) & \(101^{\circ}27^{\prime\prime}06^{\prime\prime}\) & \(36^{\circ}03^{\prime}44^{\prime\prime}\) & 240 & 8.40 & 30 \\ \hline  & & HP6 & \( \begin{array}{c}\text{Tangse}\\ \text{village}\\ \text{landslide}\end{array} \) & \(101^{\circ}48^{\prime}55^{\prime\prime}\) & \(36^{\circ}05^{\prime}27^{\prime\prime}\) & 790 & 1.20 & 35 \\ \cline{2-8}  & & HP7 & \( \begin{array}{c}\text{Quhe beach}\\ \text{mouth}\\ \text{landslide}\end{array} \) & \(101^{\circ}56^{\prime}12^{\prime\prime}\) & \(36^{\circ}00^{\prime}28^{\prime\prime}\) & 700 & 0.17 & 51 \\ \cline{2-8}  & & HP8 & \( \begin{array}{c}\text{Kangyang}\\ \text{landslide}\end{array} \) & \(101^{\circ}57^{\prime}20^{\prime\prime}\) & \(36^{\circ}00^{\prime}05^{\prime\prime}\) & 715 & 10.60 & 42 \\ \cline{2-8}  & & HP9 & \( \begin{array}{c}\text{Xiazang}\\ \text{Beach}\\ \text{landslide}\end{array} \) & \(101^{\circ}58^{\prime}51^{\prime\prime}\) & \(36^{\circ}08^{\prime}51^{\prime\prime}\) & 300 & 15.05 & 30 \\ \cline{2-8} Qunko-jianzha Basin & & HP10 & \( \begin{array}{c}\text{Branch and}\\ \text{east landslide}\end{array} \) & \(102^{\circ}03^{\prime}45^{\prime\prime}\) & \(35^{\circ}54^{\prime}36^{\prime\prime}\) & 608 & 0.10 & 20 \\ \cline{2-8}  & & HP11 & \( \begin{array}{c}\text{Shenguo}\\ \text{Beach}\\ \text{landslide}\end{array} \) & \(101^{\circ}53^{\prime}12^{\prime\prime}\) & \(36^{\circ}06^{\prime}32^{\prime\prime}\) & 730 & 0.48 & 30 \\ \cline{2-8}  & & HP12 & \( \begin{array}{c}\text{Xia Qiong}\\ \text{Temple}\\ \text{landslide}\end{array}