摘要
讨论了长江中游地区土壤潜育化沼泽化现状,土壤渍害的原因及其危害,并总结提出了一些改良措施。该地区土壤潜育化沼泽化十分普遍,四湖地区处于这种状况下的水稻土达84%,洞庭湖地区达51%,内外排水不畅是产生土壤渍害的重要原因。土壤渍害的产生极为频繁,并强烈影响作物的产量。从整个区域出发,综合考虑水利设施的规划以及因地制宜、因时制宜采取合理而有效的土壤改良措施,是改造潜沼化低产土壤的原则。
The paper highlighted the existing situation of soil gleying and swamping,thecause and harm of soil waterlogging.About 84% of paddy fields are under swamping andgleying conditions in the“Four-Lake”region,and 51% in the“Dongting Lake”region.Impeded drainage of soil water and run-off is the main cause of soil waterlogging,which takes place frequently and affects intensively on crop production in the area.It is the principle for soil improving to plan hydraulic engineering with a holistic viewof the whole region,and to adopt rational and effective measures of soil ameliorationaccording to the local conditions.Finally,some measures of soil amelioration weresuggested.
出处
《长江流域资源与环境》
CAS
CSCD
1993年第2期119-124,共6页
Resources and Environment in the Yangtze Basin
关键词
土壤
潜育化
沼泽化
土壤渍害
soil gleying
soil swamping
soil waterlogging
paddy soil
the middle reaches of the Yangtze River
