[Hu Zhi-ding] Yunnan Normal Univ, Sch Tourism & Geog Sci, Kunming 650092, Yunnan, Peoples R China.;[Xu Wen-juan] Yunnan Normal Univ, MBA Educ Ctr, Kunming 650092, Yunnan, Peoples R China.
relief degree of land surface (RDLS);vegetation index;hydrology index;climate suitability;environment of human settlement;natural suitability
The natural suitability of the human settlements environment is the foundation of human existence and development. Meanwhile, with the development of the social economy, there is an increasingly concerning of the suitability of the human settlement environment, and the relative researches have been gradually deepening, related to much more extensive areas. It fundamentally constrains the cluster and development of regional population. The article has offered such methodologies as the relief degree of land surface (RDLS), vegetation index, hydrology index, climate suitability to calculate the natural suitability of the human settlements environment in different regions in Yunnan province. The results of the research will make an important reference for the function zoning of population development, the optimized distribution of the population space, and the coordinated relationship of the population, resources and the environment.
[Niu Lede] Yunnan Normal Univ, Acad Affairs Off, Kunming 650500, Yunnan, Peoples R China.;[Niu Lede] Yunnan Normal Univ, Tourism & Geog Coll, Kunming 650500, Yunnan, Peoples R China.;[Li Cansong] Yunnan Normal Univ, MBA Educ Ctr, Kunming 650500, Yunnan, Peoples R China.
GIS technology;high-resolution image;land cover spatial layout;changes of land cover spatial layout;Burma
Research of land cover based on high-resolution image and GIS technology has become the new direction for the land cover research; in this paper, the author tries to utilize the global 30-meter land cover data and combine with DEM data and Koppen's climatic subdivision to research the spatial distribution and change characteristics of the land cover in Burma. In the paper, the author proposes that in terms of large regional space, the land cover types except for the ice land and forest land are concentrated in the valley area of Irrawaddy River and the intermountain basin in center of Shan Plateau; in terms of the changes, the forest land, cultivated land and water on the nationwide scale are the fastest increasing land cover types; in terms of the divisions and states, there is almost no change in Karen State, Mong State and Kaya State in the southeast of Burma; except for the bare land, Sagaing is the division with the largest increase of various land cover types; the cultivated lands and forest lands increase at the highest speed in Shan State, and other land cover types are on the relatively bigger increase; for the wetland changes, the coastal divisions and states are dominant; for the water with the largest increase, the divisions along the middle and lower reaches of the Irrawaddy River are dominant.