I think it's just barre chords or power chords and the G chord during the verse has some open E notes on the low E string like 0 3 0 3 0 F Bb G x4

^FWalker sees the m^Bbist r^Gise ^FOver no^Bb man'^Gs land ^FHe sees in fr^Bbont o^Gf him ^FA smashed up was^Bbte gr^Gound

^CThere are no fi^Bbelds or trees ^BbNo blades of gr^Fass ^FJust unhurried gho^Bbsts are ^Gthere ^FHanging in the w^Bbire ^G

F Bb G x2

^FWalker's in the w^Bbire ^G ^FLimbs point up^Bbwards^G ^FThere are no birds^Bb sing^Ging ^FThe white cliffs of D^Bbover ^G

^CThere are no trees to ^Bbsing from ^BbWalker cannot hear the wi^Fnd ^FFar off sympho^Bbny ^G ^FTo hear the guns b^Bbeginn^Ging

C Bb F F Bb G x4

^DmWalker's ^Fin the mist ^BbRising ^F ^Dmover ^Fno man's^Bb land ^Dm ^DmIn the b^Fattered ^Bbwaste gr^Found ^DmHear the ^Fguns f^Bbiring^F

Bb F x4

Pj Harvey - Hanging in the wire