1. The characteristics, status and evolvements of water resources and water environments, soil resources and soil environments, mineral resources and mine geological environments in the Urban Agglomerations and its different cities of Central Urban Agglomeratin were counted and analyzed systematically. Relationships between service efficiency of resources and changes of eco-environment were also analyzed.
(2)Integration of "3S" technology not only obtain and analysis spatial data in time and reliability, but also offer a computer information system through RS obtaining information, using GPS orientation, supplement and GIS dealing with information of programming and supervise of soil resource.
In order to grasp the sustainable using plane of the soil resource in Fuping County,this research aims at analyzing and evaluates the sustainable utilization on soil resource in Fuping County from 1998 to 2002 by linearity adding technique basing on statistic data and TM picture.
Integrated indicators-based gradation of cultivated land assessment accords with the characteristics of land resources and human preference in the mountains of southwestern China.
This paper established sustainable land resources evaluating indicators fit for hilly area in Sichuan Basin, Southwest of China, and evaluated the case of sustainable land management of Lezhi County from 1990 to 2001.
This is because the invasion of shrubs in grasslands increases the heterogeneity of the temporal and spatial distribution of primary vegetation and soil resources.
Studying seasonal changes of fine root biomass, RLD, and SRL associated with soil resource availability will help us understand the mechanistic controls of carbon to fine root longevity and turnover.
Multiple regression analysis showed that variation in soil resource availability could explain 71-73% of the seasonal variation of RLD and SRL and 58% of the variation in fine root biomass.