as principally in the central plain. Manchukuo - Heilongjiang: Percentage total of land cultivated: 5.2% Land cultivated per person: - Jilin: Percent of land cultivated: 14.4% Land cultivated per person: - Liaoning: Percent of land cultivated: 16.8% Land cultivated per person: - Rehe: Percent of land cultivated: 6.1% Land cultivated per person: Meng Chiang - Chahar: Percent of land cultivated: 4.1% Land cultivated per person: - Suiyuan: Percent of land cultivated: 3.7% Land cultivated per person: Animal husbandry Manchukuo was a productive area, with many domestic animals in subsistence farms or larger properties. Japanese experts increased production with the introduction of foreign species, including pigs, cattle, and sheep, which produced milk, meat, leather and wool. Other interesting products were the silkworm and the wild silk or tussah (tussor) Worm. The first needed the white mulberry for food; and the second needed Quercus mongolica and other species of oak tree to make Tussah silk. Both products were collected for dyeing and export to Europe and America or sent as raw material to these markets. The cocooned worms were sent to China and Japan. The production of Tussah Silk or pongee was in Kaiping and Andong (Liaoning Province) while silk worms stayed in Kwantung (Kantoshu) and South Manchurian Railway zone, and Chosen. Output In bushels per acre, except cotton in kilograms. In Chientao or Yenki Manchu district the Korean Colony extensively cultivated rice. Forestry products Lumber and wood products were important industries. Rehe and Jilin provinces held great expanses of various types of forest. From 1911 to 1931 Chinese lumberjacks began to work there; the volume of cut wood during the Manchu period was some . Foresting took place mostly in the Yalu and Sungari river areas; their tributaries permitted river transport to woodworking centers in Andong, Jilin and Harbin cities. The Tumen and other northern rivers also provided transport. Typical production before 1939 was per year. Uses were: railroad ties, cellulose paste for paper and for Karafuto rayon production, and export to Japan, Russia and Central and Northern China. A similar pattern may have occurred in Mengjiang. Hunting In the mountains many species of animals could be hunted for their skins, for meat, or for sport. This area corresponds with the current Heilongjiang province. The situation is similar in Mengjiang too. Coastal, river and lake fishing The rivers Amur, Sungari, Nonni, Mutang-Kiang, Ussuri, Liao, Yalu and Tumen, and the lakes Khanka,