Bu çalışmada, Isparta İli’nde yapılabilecek bazı alternatif turizm etkinlikleri için ekolojik, ekonomik ve kültürel açıdan uygun alanlar, Cografi Bilgi Sistemleri (CBS) araçları kullanılarak belirlenmiştir. Bu amaca ulaşmak üzere “Uygunluk Sınıfı Değerleri” yönteminden yararlanılmıştır.

With the objective of verify the remainders influence of ciliary vegetation and of the human action on the water quality, four springs were studied, with two springs on presence of remaining natural vegetation and two springs with agricultural activities predominance. These springs are part of Córrego Rico watershed, being located in the municipal districts of Taquaritinga and Guariba, São Paulo State, Brazil, in two classes of soil: argisoil and latosoil, respectively.

On the basis of describing characteristics and condition of application of natural growth model of population, weighted average growth model, regression forecast model and GM（1,1）forecast model, taking Gushi County in Henan Province as an example, according to the statistics of population in Gushi County Statistical Yearbook from 1991 to 2007, we establish four models to conduct fitting on population change respectively, and meanwhile, we predict population size from 2008 to 2009 and conduct preciseness test on the population size.

The biomass of forest vegetation expands in all EU countries. This review analyses the long-term development of forest vegetation and, thereby, the sequestration of carbon in forest biomass in the EU, country by country. The sequestration estimates and their uncertainties are assessed focusing on the period 1990-2006. The most recent estimates are compared with those for earlier times. A case study from Finland is presented, which helps understand the causal mechanisms affecting long-term sequestration of carbon in forest vegetation on a centennial scale.

Restoring vegetation in low rainfall areas is difficult and urges the need to design an effective and low-cost method of vegetation restoration. This study was undertaken in the lowlands of northern Ethiopia to: (1) investigate how exclosure age affects restoration of degraded native plant species richness, diversity and aboveground standing biomass, and (2) identify soil characteristics, which affect effectiveness of exclosures to restore degraded native vegetation.

Based on me data concerning detailed survey on land in the year 2009 and land change in the year 2010 in Rong County, a mountainous region of Sichuan Province, by using quantitative geographical model, we conduct quantitative analysis of the status quo of land use in Rong County in terms of land use diversification, land use centralization, land use combination type, land use geographic significance and comprehensive use degreeof land use. m e results show some characteristics as follows.

In this research the potential of grain production increase in Latvia is analysed. The land use analysis show that even in some nearest years it is possible to increase grain production by 400-500 thousand tons compared by 2010 level, but in 10 years period – by 1 million tons or more. This is due to increase both areas and yield. It is assessed during of the research that price above 90 Lats/t for wheat and above 80 Lats/t for barley, rye and oats stimulates grain production. Also some additional state regulation measures are recommended in the research.