Caragana microphylla, a perennial shrubs, the high 1-1.5 meters and three meters. Softwood with Prism, gray and white, turned into green, Mao turned to Sophie, lignified after a yellow and gray. Even feathery leaf, disagree, lobular 6-9 right. Papilionaceae, corolla yellow, single students. Strip - pod, seed size, different colors, yellow-green, brown or dark green, oval and kidney-shaped seeds. Whole-plant dark green. 2, biology, ecology is very positive characteristic Caragana microphylla species, drought, cold, heat and drought grassland, dry shrub desert steppe zone. In the Loess Plateau region, hillsides, can also ditch bifurcated growth. The very poor in fertility, moisture prevalence of sand and sand dunes lowland mobile and fixed. semi-fixed sand could grow normally. Even if the rainfall is 100 mm a year, could grow normally. In the sand surface temperature of 62 ° C, the minimum temperature of -35 ° C, is not aware of any victimization. Wind resistant and sand buried, the site can be planted in sand dunes. When the root system due to wind erosion exposed to 95% more than half a year, has been able to conduct with a weak physical activities. Only when excessive moisture or high water table, poor grows. Caragana microphylla deep root trees, then broadcast three to four times the height of a long taproot. Taproot Obviously, the root to root around horizontal extension interface, strong ability to fight desertification. Rejuvenation of the plant on Caragana microphylla, can live 80 years, will play a long-time fixer. Caragana microphylla often into bushes, a more fundamental Cong shoots up to 10-30, up more than 50 roots. 3. Sand stabilization efficiency and economic value Caragana microphylla fear buried in sand, sand and more reasonable, more branches, more brisk growth, a strong ability to fight desertification. A buried in the sand Caragana microphylla will create more than 100 to dozens of root root of a large shrub branches. Sand thickness of up to 6-7 meters high. Crown up to 13.5 x 11.0 m 2. Caragana microphylla branches, leaves, flowers, fruits, seeds wealth nutritious substances are good forage. Special winter snow closed grassland, Caragana microphylla become camel, sheep grazed only the "last straw." Therefore, Caragana microphylla is building grassland, improved rangeland essential for the good feed woody species. Caragana microphylla twigs containing fat, not fear dry combustion, carbon material is a good salary. With root nodules, fertilizer-soil, softwood, leaves contain nitrogen, green manure is a good soaking of raw materials. Seed oil can be extracted industrial lubricants, dry distillation of oil in the treatment of scabies potent drugs. Root and flower seeds can medicines, as Ziying Yangxue, overheads, such as sedation agent. Bark contain fiber, on behalf of anesthesia products. Bloom exuberance is a good honey plant. 8 yuan per kg seed. Seedlings 9.3 0.06 yuan /