1.Institute of Soil and Water Conservation,CAS & MWR,712100,Yangling,Shaanxi;2.Graduate School of the Chinese Academy of Sciences,100049,Beijing;3.Institute of Soil and Water Conservation,Northwest A & F University,712100,Yangling,Shaanxi: China
Abstract：In order to provide scientific basis for vegetation restoration of abandoned farmlands in the Hilly-gully area of Loess Plateau,it is important to study the relation between vegetation variation and environmental factors.Based on observation of 42 plots of abandoned farmland in Ansai,affection of local environment factors on vegetation restoration was analysised from single factor,packet variables and significant factors through Canonical Correspondence Analysis and Partial Canonical Correspondence Analysis.The results show that key environment factors affecting variation of vegetation on abandoned cropland in the Hilly-gully area of Loess Plateau are soil organic matter,total phosphorus,available phosphorus,soil water content(0-40 cm),soil invertase,soil structural index,<0.001 mm clay,aspect,and abandonment age of cropland.To promote the progress of vegetation restoration on abandoned cropland,it is essential following natural restoration domination and artificial regulation assisted such as transplanting or applying fertilizers.
张振国1,2；焦菊英1,3；贾燕锋1,2；王宁1,2. 黄土丘陵沟壑区不同立地环境因子对植被变化的解释比例分析[J]. 中国水土保持科学, 2010, 8(2): 59-67.
ZHANG Zhen-Guo-；Jiao-Ju-Yang-；Gu-Yan-Feng-；Wang-Ning. Interpretation proportion analysis of different environmental factors on vegetation variations in the Hilly-gully area of Loess Plateau. SSWCC, 2010, 8(2): 59-67.
2010, Vol. 8 
