1983年12月5日至11日甘肃省农科院、西北农学院在兰州召开了西北黄土高原土地资源合理利用技术研究——唐家堡河流域综合考察汇报会,参加会议的有甘肃省农科院、西北农学院、甘肃省林科所、定西地区有关部门等8个单位的40余名专家及科技人员。黄土高原沟壑区是西北黄土高原水土流失最为严重的地区,严重流失面积达28万平方公 December 5, 1983 to 11 Gansu Academy of Agricultural Sciences, Northwest Agricultural College held in Lanzhou, Northwest Loess Plateau, the rational use of land resources technology research - Tang Jiabao River Basin comprehensive inspection report to participate in the meeting Gansu Provincial Farmers ASTRI, Northwest Agricultural College, Lin Branch of Gansu Province, the relevant departments of Dingxi and other eight units of more than 40 experts and scientific and technical personnel. The gully area of ​​the Loess Plateau is the area with the most serious soil and water loss in the Loess Plateau of Northwest China, with a serious loss area of ​​280,000 square kilometers