中国农业生态系统多样性保护研究现状与展望

廖美哲, 张宗文, 白可喻

Situation and prospects of biodiversity of agricultural ecosystem conservation and utilization in China

Meizhe Liao, Zongwen Zhang, Keyu Bai

表3 延安市主要农作物种植面积。粮食作物面积包含非主要农作物面积和粮食作物面积。

Table 3 Planting area of main crops in Yan'an City. Food crops include non-main food crops and main food crops.

种植面积 Planting area 2010 (ha) 2014 (ha) 2019 (ha) 所有农作物 All crops 252,570 244,580 183,300 粮食作物 Food crops 209,560 200,400 144,360 小麦 Wheat 6,850 400 230 稻谷 Rice 1,310 470 1,440 玉米 Maize 71,100 81,370 72,790 大豆 Soybean 23,280 23,740 16,590 棉花 Cotton 720 1,080 560 油菜籽 Rapeseed 2,390 2,210 1,540 花生 Peanut 2,260 2,370 680 烤烟 Tobacco 2,430 1,770 1,130 蔬菜 Vegetable 19,540 23,430 22,040 麻类 Hemp 10 0 0