摘要
本文阐述了南亚热带低山、丘陵、台地赤红壤总库容、贮水库容、通透库容的占有状况。指出不同利用方式的赤红壤,其有效水库容和无效水库容的占有量及占有比例也有异。研究结果表明,贮水库容的大小只能说明可容纳水多少,但不能说明南亚热带气候条件下赤红壤的常年实际贮水量。本文对赤红壤的常年贮水量及其季节动态和有效程度作了剖析,对土壤水分的管理提出了看法。
Deals with the occupying status of total volumetric capacity,water-storage ca- pacity and transmission volumetric capacity of lalored soil in low mountains,hills and plat- forms in the south subtropical zone,and points out that there are differences in the occu- pying amounts and occupying proportions of the available water-storage capacity and un- available water-storage capacity of lalored soil under different utilization patterns.Results show that the size of water-storage capacity can only illustrate how much water can be held,but can not illustrate the average year's actual water-storage capacity of lalored soil under the condition of south subtropical climate.The paper also analyses the average year's water-storage capacity of lalored soil and its seasonal dynamics and available de- gree,and finally advances the views of soil water management.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1997年第S1期135-140,共6页
Journal of China Agricultural University
基金
三个国家自然科学基金项目
关键词
赤红壤
有效水库容
土壤贮水量
土壤有效贮水量
lalored soil
available water-storage capacity
soil water-holding capacity
available water content of soil
