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土壤选择过程为了围绕广泛分布的土壤结构、物理、化学性质建立数据库,所有符合某一标准的发表的、未发表的数字都被采集、总结、表格化。这篇文献回顾是根据250个研究人员的调查写成的,这250人正引导着包括不同作物下土壤水含量的田间测定在内的研究工作。在文献研究期间,调查表被送到参加上述研究工作的研究人员那里,同时也送到州和联邦研究所研究土壤物理、土壤水分控制的专家手中。调查表设计成能够统一符合下述研究标准的格式:①生长在所研究范围内的土壤上的作物已经经受了严重的水分亏缺;②在经受水分亏缺期间,通过根系层的土壤水含量已经阶段性地测量过;③水量测定地点能够精确定位。可应用的数字是从28位同意对调查做出贡献的答
Soil Selection Process To create a database of widely distributed soil structure, physical and chemical properties, all published and unpublished numbers that meet a certain criteria are collected, summarized and tabulated. This review of the literature was based on a survey of 250 researchers who are conducting research that includes field measurements of soil water content under different crops. During the literature study, the questionnaire was sent to the researchers participating in the above research, as well as to the state and federal research experts working on soil physics and soil moisture control. The questionnaire has been designed to unify formats that meet the following research criteria: (i) crops grown on soils under study have already experienced severe water deficit; (ii) soil water content Has been measured periodically; ③ water measurement sites can be accurately positioned. The number that can be applied is from 28 who agreed to contribute to the survey