Vegetation of Yunnan and a lot of papers on local vegetation types were published, the classification, termilology and explanations on the tropical forest of Yunnan are still various and uncertain, especially on the classification and circumscription for formations of the forest. This article is a summary on the classification of the tropical forest vegetation types and their formations recorded in Yunnan. The tropical forest vegetation in Yunnan includes three main vegetation types: tropical rain forest, monsoon forest and seasonal moist forest. The tropical rain forest in Yunnan is a type under the monsoon climate and evolved at the limits of rainfall, temperature and altitude required by tropical Asian rain forests. The vegetation type is comprised of the seasonal rain forest on lowlands and the montane rain forest on higher elevations as two subtypes, and the former includes nineteen formations and the latter includes twelve formations. The tropical monsoon forest is a deciduous to semi-evergreen vegetation type between the tropical rain forest and the savannas on its original definition, and its distribution is controlled mainly by rainfall and topography. The tropical monsoon forest is classified into two subtypes: the deciduous monsoon forest with seven formations, and the semi-evergreen monsoon forest with three formations. The so-called “the tropical monsoon forest on limestone” in some Chinese references, due to its evergreen to semi-evergreen physiognomy, particular floristic composition and not having a deciduous period of the year in its canopy(deciduous trees in the forest could be due to local habitat dryness and historical reasons on limestone, not the regional dryness of climate), does not meet the definition of the monsoon forest. Here I give the name the tropical seasonal moist forest for this type of forest occurring on limestone slopes above the tropical seasonal rain forest at valleys. The tropical seasonal moist forest is also assorted into two subtypes: the seasonal evergreen moist forest and seasonal semi-evergreen moist forest, and both of them include two formations.]]> 2018/8/27 10:59:56 *]]> ZHU Hua^* 2true -2·a^-1, and the average NPP of grassland, farmland, shrubs and forestland during 2005—2015 were 300.3, 353.6, 366.5 and 390.1 g(C)·m^-2·a^-1; The overall fluctuation of NPP in vegetation in Shanxi Province increased significantly with a significant or extremely significant increase in the proportion of regional area reached 56.33%, mainly concentrated in the western part of Shanxi Province; The significant or extremely significant reduction of vegetation NPP area was mainly concentrated in the southeastern corner of Shanxi Province, accounting for 2.22% of the total area; The rate of change of NPP in grassland was the largest, the farmland was greater than the shrub, and the forest land was the smallest; There was a significant positive correlation between the average of vegetation NPP and the average of precipitation in Shanxi Province. Based on calculated pixel value, the area of vegetation NPP and precipitation had significant or extremely significant positive relation in the total study area, accounting for 17.01%, mainly concentrated in northern Shanxi Province; The area of vegetation NPP and temperature had significant and extremely significant negative correlation relation in the total study area, accounting for 3.66%, mainly concentrated in central Shanxi Province. The results indicated that the vegetation NPP of Shanxi Province during 2005—2015 was improving; The response of different vegetation to human activities and environmental factors was different, the stability of grassland and farmland was weak, and the NPP changes obviously, the stability of shrub and forestland was strong, and NPP was stable; There was a significant positive correlation between vegetation NPP and precipitation, and a negative correlation between vegetation NPP and temperature, as a whole, the climate factor promotes the rise of NPP, while the human factor is mainly manifested as the inhibitory effect on NPP changes.]]> 2018/8/27 10:59:56 *, BI Rutian, GAO Peixia, Wang Guofang]]> LIANG Shuang, ZHNAG Wuping^*, BI Rutian, GAO Peixia, Wang Guofang 1true