TY  - SER
AU  - Cheng Genwei
TI  - Forest change: hydrological effects in the upper Yangtze river valley
PY  - 1999///
PB  - Royal Swedish Academy of Sciences, 
KW  - Hidrologia
KW  - Reforestacion
KW  - Conservacion del agua
KW  - Ecologia forestal
KW  - Valle del Rio Yangtze
KW  - China
ER  -