省水保局和省科委主持于今年六月二十一日至七月五日在吕梁、忻县地区的兴县、岚县、离石、岢岚、五寨、偏关进行了飞机造林种草中间试验,面积近十三万亩。前年和去年忻县、吕梁的科委和水保部门九后在岢岚、兴县等地进行了两次飞播试 Provincial Bureau of Water Resources and Conservation and Provincial Science and Technology Commission presided over the June 21 this year to July 5 in Lvliang, Xin County Xing County, Lan County, Lishi, Lan Lan, Wuzhai, partial off of aircraft afforestation Middle grass test, an area of ​​nearly 130,000 mu. The year before last year and last year, Xin County, Lvliang Science and Technology Commission and the nine departments of water and soil conservation departments in Lan Lan, Hing County and other places two flight test