title: [Distribution of oncomelania hupensis snails and effect of plantations on snail control under different land uses at a gentle hilly region].
abstract: OBJECTIVE
  To provide better afforestation/forestation patterns for snail (Oncomelania hupensis) control in gentle hilly region in China.
  
  
  METHODS
  The snails were investigated and the effects of afforestation on snail community were analyzed at the plots with or without snail-controlling forest.
  
  
  RESULTS
  The community of snails exhibited a middling variation at the area without snail-controlling forest (control area), where the living snail frame occurrence (LSFO) and mean snail density (MSD) were 26.81% and 0.940 snails per 0.1 m2, respectively. There were significant differences in LSFO (F = 11.29, P < 0.01) or MSD (F = 12.71, P < 0.01) among the eight land use types at control area. Higher snail numbers occurred in lowland, paddy field and paddy-upland rotation land, whereas the lower were in dry-farming land and plantation. After 5 years of plantation, LSFO and MSD reduced by 62.70%-89.98% and 74.03%-94.00% under 5 land use types, respectively. LSFO and MSD reduced by 52.04%-87.36% and 52.20%-95.45%, respectively at the demonstration area compared with those at control area.
  
  
  CONCLUSIONS
  Afforestation/forestation would effectively reduce snail community irrespectively of land uses at gentle hilly region in plateau.
authors.affiliation: Desert Ecosystem Station in Yuanmou County, State Forestry Administration of China, Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, China.
authors.forename: Guo-Yong
authors.initials: GY
authors.lastname: Tang
authors.forename: Kun
authors.initials: K
authors.lastname: Li
authors.forename: Chun-Hua
authors.initials: CH
authors.lastname: Zhang
mesh_terms: D000818:Animals; D002681:China; D004197:Disease Reservoirs / Q000469:parasitology; D016468:Forestry / Q000379:methods*; D006801:Humans; D010571:Pest Control / Q000379:methods*; D012547:Schistosoma / Q000502:physiology; D012552:Schistosomiasis / Q000469:parasitology / Q000517:prevention & control*; D012908:Snails / Q000254:growth & development* / Q000469:parasitology; D014197:Trees / Q000254:growth & development