固原东部半干旱黄土丘陵区干草原草场改良方法初探

COMPARISION OF METHODS FOR IMPROVING ARID PRAIRIE AT LOESS HILL COUNTRY OF SEMI-ARID REGION IN EASTERN GU YUAN

本文根据近几年在固原东部黄土丘陵区进行干草原草场改良的试验资料和上黄村工程种草新技术的广泛实践,论述了干草原草场改良的具体方法、步骤及取得的社会生态效益,分析评价了各种改良措施对草地生产力的影响。

Baseel on recent Years test date of improvement of arid—prairie and pasture in semi—arid loess hilly aren of eastern Gu Yuan and on new techological practice of engneer—planting grass in Shan huang village,this paper states the atual improvement mothels and their procelure of arid prairie and pasture and their corres ponling social and ecological efficaey, then it analyses and assesses the of these improvement methods on grassland productivity.