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Copies of the 1994 Fresno land use survey report may be requested frorn DWR Bulletins and Reports at (916) 653-1097. Questions about details of the survey fmdings may be diiected to Dave . Scruggs of DWR's San Joaquin District Office at (209) 445-5262. == Tal)le 1. Summary of 1994 Fresno County Land Use Survey . (acres x 1,000) 002023 / The 1994 Fresno County survey study area encompassed the San Joaquin Valley floor pOrtiOR of the county. including 52 percent ofthe county's 5,963 square miles of land. O(the nearly 1.7 million acres in the study area, over 1.3 million 'are currently developed for irrigated agri-, culture. The San Joaquin Valley trough divides the study area roughly in half. About 95 percent of both the county's population and permanent crops (trees , and vines) are east of the trough. The area )west of the trough is sparsely populated, and dominated by field and truck crops. Areas outside of the study area are gener- ally mountains and fqothills covered with native vegetation. Fiel? work for DWR land use surveys is organized by 7-1/2 minute U.S. Geologi- cal Survey quadrangle maps. The Fresno County study area includes all or part of - , . 66 USGS quads. Survey results are sum- marized by 24 crop groups, plus broad ' . , categones of urban development and na- tive vegetation. / Compared to the 1986 and 1979 DWR surVeys. total land acreage in crops in th~ I --- Fresno County study area has decreased, althou~h there was some acreage increase in truck crops, trees, and vines--especial- 1y almonds and vineyards. Urban devel- opment also has increased. but grain and field crops, as well as native vegetation acreage. have decreased. Cotton, the larg- est single 'crop in the county, experienced a net decrease of over 110,000 acres since 1979, the largest decrease among , field crops. In 1992, DWR began converting all current land use survey rnaps into a standardized digital formaCfor processing in a computerized geographic information system., For the 1994 Fresno survey. GIS technology was used to generate spatial chang~s of lam! use between the 1986 and 1994 surveys; the rnapped results are fOund in the report. Irrigated Crop Groups 1979 1986 1994 Change 1979-1994 Grains & Field Crops &72.3 725.7 630.9 (241.4) Truck Crops 102.3 159.4 219.2 116.9 Trees & Vines 344.4 377.5 405.9 61.5 Total Irrigated Crop Acres 1,319.0 1,262.6 1,256.0 (63.0) Urban 85.6 100.0 136.9 51.3 Native Vegetation 294.1 280.6 206.6 (87.5) 5 / '"