林业板块2月4日涨2.35%，平潭发展领涨，主力资金净流入2.23亿元

Group 1 - The forestry sector increased by 2.35% on February 4, with Pingtan Development leading the gains [1] - The Shanghai Composite Index closed at 4102.2, up 0.85%, while the Shenzhen Component Index closed at 14156.27, up 0.21% [1] - Major stocks in the forestry sector showed varied performance, with Pingtan Development closing at 10.75, up 2.87%, and ST Jinggu closing at 20.20, up 0.20% [1] Group 2 - The net inflow of main funds in the forestry sector was 223 million yuan, while retail funds experienced a net outflow of 170 million yuan [1] - Pingtan Development had a net inflow of 230 million yuan from main funds but saw a net outflow of 1.79 billion yuan from retail investors [2] - ST Jinggu experienced a net outflow of 790,100 yuan from main funds, with retail investors contributing a net inflow of 106,610 yuan [2]