Spatial pattern and heterogeneity for soil moisture across cropland‐grassland ecological boundary in north agro‐pasturing transition,China
Studies of boundaries are an important and rapidly evolving part of contemporary ecology ( Cadenasso, 2000 ; Belnap, 2003; Strayer, 2003).In the semi‐arid region of northern China, there exists an agro‐pasturing transition.However, in the inner part of the transition area, parts of natural grassland were reclaimed into cropland.With the fragmentation of grassland landscape, the structure and function of the grassland ecosystem are changing.Soil moisture plays a critical role in integrating all components of the surface balance, and is highly influential in hydrological processes.But the research on soil moisture spatial pattern of the natural grassland‐cropland boundary seldom has been reported in this area.Therefore,it is basic and significant science to recognize the ecological characteristics of the boundary for soil moisture, and to provide a better understanding about landscape pattern and ecological process of the cropland‐grassland boundary in this area.
cropland‐grassland boundary soil moisture spatial pattern ecological effect north agro‐pasturing transition of china
H.M.Wang K.Wang Y.Z.Xie
Institute of Grassland Science,China Agriculture University Institute of Grassland Science Grassland Sciences,Ningxia University,China
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）