吕梁地区对很多人都不陌生,它是著名的革命老区,毛泽东、周恩来、贺龙、关向应等老一辈革命家曾在这里战斗、生活过。它位于山西省的中西侧的黄土高原,至今仍是一个贫困地区,是全国18个集中连片贫困地区之一;全区13个县。其中有8个县是国家级贫困县(原先9个,刚脱贫1个)。造成吕梁地区贫困的最主要的原因是水土流失,严重的水土流失带走了沃土。据测算,这里每年平均流失的泥沙带走土壤氮素6.2万吨,相当于全区每年氮肥施用量的两倍多。水土流失导致了农业气候条件的恶化,旱、涝、风、雹等自然灾害频繁发生。影响社会发展的另一个重要原因是社会整体发育水平低:一是农业生产经营粗放,吕梁地区的农业以种植业为主,而吕梁宜林宜牧面积广阔,林牧业产值所占比例却不大。由于 Luliang is familiar to many people. It is a famous old revolutionary base. Mao Zedong, Zhou Enlai, He Long, Guan Xiang and other older revolutionaries have fought and lived here. It is located in the central and western Loess Plateau of Shanxi Province and is still a poor area to date. It is one of 18 concentrated contiguous poverty-stricken areas in the country; it has 13 counties in the region. Eight of these counties are state-level poverty-stricken counties (originally 9, just out of poverty). The main reason that caused the poverty in Luliang area is soil erosion, and serious soil erosion has taken away fertile soil. It is estimated that the average annual loss of sediment to take away 62,000 tons of soil nitrogen, which is equivalent to more than twice the amount of nitrogen fertilizer in the region each year. Soil and water loss has led to the deterioration of agro-climatic conditions. Natural disasters such as drought, flood, wind and hail occur frequently. Another important reason that affects social development is the low level of development in society as a whole. First, extensive agricultural production and management, mainly in agriculture in Lvliang area, while Lvliang Yilin Area has a vast area, while the proportion of output value of forestry and animal husbandry is not large. due to