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海南岛位于北纬18°29′—20°11′,东经108°36′—111°03′,耸立于南海和北部湾中,是我国第二大岛,面积三万四千三百八十平方公里,现有人口五百二十八万。海南岛属热带岛屿季风气候,年平均气温23—26℃,≥10℃的活动积温在8300℃以上,年辐射平衡62—68千卡/厘米~2。降雨量1200—2400毫米。可谓热量丰富,长夏无冬,雨量丰沛,是我国少有的天然大温室,具有发展农业的巨大潜力。但是,由于海南岛地处季风热带区和中高周低的自然地理特征,夏秋台风频繁,冬春干旱,具有明显的脆弱性、不稳定性和不平衡性,雨量丰沛的海南岛,严重的问题仍然是水,而水源的涵蓄主要靠森林。因此,海南岛的热带森林就历史地成为海南大农业的命脉。
Located at latitude 18 ° 29’-20 ° 11 ’and longitude 108 ° 36’-111 ° 03’ east longitude, Hainan Island stands in the South China Sea and Beibu Gulf. It is the second largest island in China with an area of 34,380 square feet Km, the existing population of 5.28 million. Hainan Island is a tropical island monsoon climate, the annual average temperature of 23-26 ℃, ≥ 10 ℃ accumulated temperature above 8300 ℃, the annual radiation balance of 62-68 kcal / cm ~ 2. Rainfall 1200-2400 mm. It is rich in calories, long summer no winter, abundant rainfall, is our rare natural large greenhouse, with great potential for the development of agriculture. However, due to the natural geographical features of Hainan Island, which are located in the monsoon tropical zone and the high and medium low cycles, frequent typhoons in summer and autumn, winter and spring drought, obvious vulnerability, instability and imbalance, heavy rainfall in Hainan Island, serious problems Water is still the source of water and the main source of water is by forests. Therefore, the tropical forests of Hainan Island have historically become the lifeblood of Hainan’s big agriculture.