(Table 1) Granulometry, soil pH, carbonate content and color description of soil profiles obtained in Xinghai, Tibet

Large parts of the eastern half of the Tibetan Plateau are covered between (3,500) 4,000 and nearly 6,000 m a.s.l. by alpine sedge mats (key species Kobresia pygmea), which attain an extension of ca. 450,000 km**2. It is considered to be the world's largest alpine ecosystem. Moreover, there exist isolated (relic) forests in the same area up to an altitude of 4,700 m a.s.l. mainly consisting of juniper (Juniperus) and spruce (Picea). Large parts of the Kobresia ecosystem are expected to be a grazing-resistant replacement formation, replacing forests and grass-dominated plant communities due to human and/or climatic impact. Recently, a research project was launched to increase knowledge about the properties and genesis of these forests and sedge mats (Present-day dynamics and Holocene landscape history of fragmented forest biocoenoses in Tibet; headed by G. Miehe, Marburg).

The journal of Lewis and Clarke to the mouth of the Columbia River beyond the Rocky Mountains in the years 1804-5, & 6 : giving a faithful description of the river Missouri and its source - of the various tribes of Indians through which they passed - manners and customs - soil - climate -commerce - gold and silver mines - animal and vegetable productions, &c.

Mode of access: Internet.

The Canadas as they now are. Comprehending a view of their climate, rivers, lakes, canals, government, laws, taxes, towns, trade, &c. With a description of the soil ... Derived from the reports of the inspectors made to the justices at quarter-sessions, and from other authentic sources, assisted by local knowledge ...

Sabin 10390; Staton and Tremaine, no. 1638.

Effect of physical soil properties on cotton emergence : prediction and quantitative description / [by D. F. Wanjura].

"Agricultural Research Service ... in cooperation with Arizona and Texas Agricultural Experiment Stations."

The American flower garden directory: containing practical directions for the culture of plants in the flower garden, hot-house, green-house, rooms, or parlour windows, for every month in the year. With a description of the plants most desirable in each, the nature of the soil, and situation best adapted to their growth, the proper season for transplanting, &c. Instructions for erecting a hot-house, green-house, and laying out a flower garden. Also, table of soils most congenial to the plants contained in the work. The whole adapted to either large or small gardens, with instructions for preparing the soil, propagating, planting, pruning, training, and fruiting the grape vine. With descriptions of the best sorts for cultivating in the open air.

Mode of access: Internet.