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马边位于四川盆地西南边沿的大凉山区,东起东经103°49′40″,西至东经103°14′40″,南起北纬28°25′30″,北至北纬29°04′14″。东西长约58公里,南北宽约60.5公里。总面积为2374平方公里。境内地势复杂,群山起伏,山势陡峻,最高处海拔4042米,最低点海拔448米,海拔高差为3594米,河谷海拔一般为500——600米。土壤随地形高度和母质的不同而有显著变化,从低山沟谷至高山森林,其土壤分布,分别为冲洪积土、紫色土、山地黄壤、山地黄棕壤、灰化土、高山草甸冰冻土等。境内海拔300米以上地区,以山地黄壤和黄棕壤分布为主,土质湿润肥沃,pH
Mabian is located in the Daliangshan area on the southwestern edge of the Sichuan Basin. It runs 103 ° 49’40 “east longitude and 103 ° 14’40 east longitude from east to 28 ° 25’30” north and latitude 29 ° 04’14 north ". Some 58 km east-west, 60.5 km wide north-south. The total area of 2374 square kilometers. Terrain complex territory, mountains and downs, steep mountains, the highest elevation of 4042 meters, the lowest point of 448 meters above sea level, elevation of 3594 meters above sea level, the river valley is generally 500 - 600 meters above sea level. The soil changed significantly with the height of the terrain and the parent material. The distribution of soil from low mountain valley to alpine forest were alluvial soil, purple soil, yellow mountain soil, yellow brown soil, ash soil, alpine meadow Frozen soil and so on. The territory of more than 300 meters above sea level, mainly to the distribution of yellow earth and yellow brown earth, moist and fertile soil, pH