Soil taxonomy and suitability assessment on typical tobacco-planting farmlands in Guizhou, Southwest China

Soil Suitability Evaluation for Tobacco Based on Grey Cluster Analysis

Suitability evaluation of soil for tobacco is the base of spatial analysis and optimization disposition. It provides scientific basis for reasonable development of soil for tobacco. Taking soil in San Menxia city of Henan province as a study of object, five factors which had relation of tobacco growth are adopted, grey cluster method are carried out to appraise suitability evaluation. The resul...

Prevalence of Obesity and Related Factors among Bouyei and Han Peoples in Guizhou Province, Southwest China

OBJECTIVE To investigate the prevalence of general and abdominal obesity and associated factors in Bouyei and Han peoples. DESIGN A cross-sectional study was carried out in Guizhou province, southwest China in 2012, with multi-stage sampling to enroll 4551 participants aged 20 to 80 years. General and abdominal obesity were defined by World Health Organization (WHO) for Chinese. A design-base...

Small-Scale Evaluation of Tobacco Planting Suitability Based on Spatial Information Technology

Crop planting suitability evaluation is important for agricultural production. In this study, a comprehensive evaluation framework which combined geographical information system, remote sensing, global position system and geostatistics with other models was presented to evaluate the tobacco planting suitability on a small scale. Ten indicators from three respects of climate, terrain and soil nu...

Soil acidification with various planting patterns in Lhasa, Tibet, China

The spread of vegetable production around Lhasa, Tibet, China, with high nitrogen fertiliser use may cause accelerated acidification which has consequences for soil productivity. In order to understand the different patterns of soil acidity in Lhasa, Tibet, China three patterns of land use were studied namely: grain, openfield vegetable, and greenhouse vegetable. Fertilizer application was high...

Geochemistry and Metallogenic Model of Carlin-Type Gold Deposits in Southwest Guizhou Province, China