id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72770	Ruuska, Riitta; Helenius, Juha	GIS analysis of change in an agriculture landscape in Central Finland	1996	10	.pdf	application/pdf	4401	285	63	At the same time, the Shannon-Weaver index of diversity of agricultural landscape elements dropped from 0.37 to 0.24. The decrease in the length ofopen field ditch- es in relation to field area was 426 m/ha in the study area.	cache/afs-72770.pdf	txt/afs-72770.txt