摘要
本文引用甘肃省43个气象台站1983—1985年农耕期的土壤湿度资料,27个台站1986年测定的土壤容重及86个台站的蒸发计算资料,并选取旱作区不同站,对该省土壤水分的地域分布,土壤水分的时间分配,土壤水分垂直变化及其与农业生产的关系进行了研究。将全省分为7个土壤水分区,13个亚区,提出了相应的农业生产措施。为充分利用土壤水分资源,合理安排农业生产提供了科学的参考依据。
This paper deals with the regional distribution,time distribution,and ver-tical distrivution of soil moisture and its relationship with agricultural produc-tion using soil moisture data in farming periods from 43 weather stationsof Gansu Provice in the years of 1983—1985,the determined soil bulk densityfrom 27 weather stations in 1986,and calculated data of evaporation in 86 wea-ther stations.As a result the province can be divided into seven soil moistureregions,13 soil moisture sub-regions.Through evaluation of data the correspon-ding agro-production measures have been worked out.The scientific referencebases have been provided for full use of soil moisture resources and rationalarrangement of agricultural production.
出处
《干旱地区农业研究》
CSCD
北大核心
1991年第3期67-76,共10页
Agricultural Research in the Arid Areas
关键词
土壤
水分
含量
客重
年蒸降差
Soil moistare regional division
soil moistare content
soil bulk density
difference between annual evaporation and rainfall
fuzzy cluster analysis
soils in Gansu Province
