Accession Number : AD0692153

Title :   BRIEF INTRODUCTION TO SOME BASIC KNOWLEDGE ON SALINE SOILS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Ch'en,Ching-shen

Report Date : 06 JUN 1969

Pagination or Media Count : 25

Abstract : The author discusses salt content in salinized soils and its damage to crops, classification of salinized soils, and salinized soil formation in relation to natural conditions. Most plants cannot absorb water in salt solutions at an osmotic pressure of 6.8 atm. The osmotic pressure in deserts in central Asia has the following ranges: 3.29-4.2 atm for lightly salinized soils, 4-6 atm for mildly salinized soils, and 8-15 atm for strongly salinized soils. Salinized soils are classified according to: types of salts in soil; salt formation characteristics on the ground surface; process of soil formation; salt migration; geographic distribution; and soil classification systems. (Author)

Descriptors :   (*SOILS, CHEMICAL PROPERTIES), SALTS, PLANTS(BOTANY), ABSORPTION, CLASSIFICATION, DAMAGE, OSMOTIC PRESSURE, SODIUM COMPOUNDS, CHLORIDES, SULFATES, GEOGRAPHY, CHINA

Subject Categories : Agricultural Chemistry
      Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE