The Weihe Basin is a crucial part of the Fenwei Graben System and typical example an extensional fault basin. Over time, region has been developed around 212 ground fissures, with majority them being associated heavy rainfall. These water-eroded fissures have caused serious damage to farmland, houses, roads, Liangjiacun Meiyuancun Dizhentai most known. To understand developmental characteristic...

We investigated the influence of shelterwood conditions on water relations and growth of loblolly pine (Pinus taeda L.) seedlings on two harsh sites in eastern Texas. Site I was harvested to provide four overstory density treatments (0, 2.3, 4.6 and 9.2 m(2) of residual basal area per ha). To quantify the effects of overstory competition, trenched and nontrenched subplots, each containing 25 on...