关键词: 水稻, 根系, 生长与分布, 根箱, 土壤紧实度

Abstract: This raper introduces a people's commune in Mid-Sichuan Basin of China. It is an embryonic form of equilibiam of system and shows the way getting a better production within a short period.The experiences include: (1) a justing water resource to assure a harmonious wtater sapply needed by the new and well balanced ecosystem, (2) enriching soils of this region constantly with organic matter by planting Alnus and Cypress on higher hills; (3) building terrace land on more thin-layer and slope nplants.The main advantges of this eccsystem built by this way are as follows: (1) making a big progress in increasing the species of birds and moist-like plants; (2) raising crop yields year after year in the same site; (3) obtaining soils with higher festility; (4) inereasing the with standing capacity of the system to natural calamities.

Key words: Riec, Roots, Growth and distribution, Root box, Soil compaction