中国地球化学学报（英文版）2010，Vol.29Issue(4)：464-470,7.DOI:10.1007/s11631-010-0480-4
Nitrogen cycle model of agroecosystem in the karst region of Guizhou Province
Nitrogen cycle model of agroecosystem in the karst region of Guizhou Province
摘要
Abstract
According to the transport theory of soil solutes and the conditions of soil, geology and climate in the karst region of Guizhou Province, a numerical simulation model of edaphic nitrogen element transport under field conditions is initially established. In this model, NO-3 and NH+4 are regarded as soil solutes. Transformation mechanisms such as biological release, bio-immobilization, ammonium adsorption-desorption, nitration-denitrification and factors of crop root uptaking are considered in this model. It is hoped that the data from this model could directly be used to guide agricultural production in this region and offer feasible ways to improve the use of nitrogen element, sustainable development of agriculture in karst mountainous areas and natural environment.关键词
karst/agroecosystem/nitrogen cycle/modelKey words
karst/agroecosystem/nitrogen cycle/model分类
天文与地球科学引用本文复制引用
CHEN Ye ,LIAN Bin..Nitrogen cycle model of agroecosystem in the karst region of Guizhou Province[J].中国地球化学学报（英文版）,2010,29(4):464-470,7.基金项目
Granted jointly by the Ministry of Science and Technology of China (Grant No. 2006CB403200) and the National Natural Science Foundation of China (Grant No. 40773069). （Grant No. 2006CB403200）
