ansai造句

• The value of containing soil and water is only 5 . 1 percent and 0 . 7 percent in total ecosystem value respectively in ansai county and wuchuan county , however in zhifanggou valley the ration gets to 60 . 3 percent . so some measures of increasing the vegetation and strengthening the service function should be taken continuingly
  但是，区域的水土保持服务功能还很低下，安塞县、武川县水土保持价值占总服务价值的比例分别为5 . 1 、 0 . 7 ，纸坊沟流域则达到60 . 3 。
• The objectives of this paper were : ( 1 ) quantitative analysis on agricultural development status in ansai county during 1995 - 2002 period ; ( 2 ) exploration of dynamic variation and direction of rural industry structure adjustment by using the gray correlation analysis method ; ( 3 ) discussion impacts of " grain for green project " on agriculture and rural economics development in the loess hilly and gully area , and the project ' s sustainable
  本文依据1995 - 2002年安塞县统计资料和农户调查数据，在对安塞县实施退耕还林工程以来农业发展状况进行定量分析的基础上，运用灰色关联度分析法，分析确定安塞县农村产业结构调整的动态变化过程和农业结构调整的方向，以探讨退耕还林还草的实施对黄土丘陵沟壑区农业与农村经济发展的影响，以及退耕还林工程的持续性。
• The soil erosion in typicalregions of loess plat eau are studied in this paper : ( 1 ) the main factors affecting soilerosi on are pre cipitation , topography and land use ; ( 2 ) the main erosion types arte watererosio n and gravity erosion ; ( 3 ) the soil erosion is mainly produced in flood season ; ( 4 ) the soil erosion vertically distributes regularly ; ( 5 ) soil erosion is heavy in suide , light relatively in tianshui , typicial in ansai , and exceptional in xife ng among fourstudied typical regions of loess plateau
  对二龙山水库上游流域水土流失状况及自然植被情况等进行了调研，以唤起人们对土壤侵蚀状况有一个明确的认识，根据生物的适宜性进行调整，充分发挥生物与环境的最高生产力，采取有效措施和对策防止土壤侵蚀之目的。