摘要
海南州土壤盐渍化主要分布在共和、兴海两县，呈零星分布，面积达11．18万hm2。盐渍化土壤类型为盐化棕钙土和盐化栗钙土。由于土壤利用不当，致使土壤含盐量呈上升趋势牧草和农作物产量均不到1500kg／hm2。为此提出了综合改良措施，如改善耕灌制度、草田轮作，合理施用有机肥和化肥、排水洗盐等，以达到改善生态环境的目的。
Salinized soil in Hainan Prefectural area is scattered in Gonghe and Xinghai two counties. Although it is odd distribution,its total area is 111, 800ha. The type of salinized soil includes salinized brown soil and saliniaed chestnut soil. Salt content of soil is tending to increase and the yields of herbage and cultivated crops are less than 1, 500kg/ha du. to misusing soil. Therefore,it is proposed to improve comprehensively by using the following series of methods:improvement of cultivation and irrigation system,rotation of grass and crops,organic fertilizer and fertilizer application suitably,desalinization of soil by drainaging,to gain the objective of ecological environmentimprovement.
出处
《青海草业》
1998年第2期34-35,19,共3页
Qinghai Prataculture
关键词
土壤盐渍化
性状
耕灌制度
草田轮作
soil salinization
properties
cultivation and irrigation system
rotation of grass and crops
