刘琪璟湿地松生长

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1、南方湿地松人工林生长状况研究OnthegrowthofslashpineplantationinsubtropicalChina刘琪璟LiuQi-Jing809918554@qq.com北京林业大学林学院DepartmentofForestSciencesBeijingForestryUniversity报告提纲Outline1研究背景及意义Background2研究方法Methods3主要结果Results4讨论Discussion湿地松[松科][松属]Pinaceae拉丁名：Pinuselliottii原产于美国

2、东南部暖热潮湿的低海拔地区（600m以下）。中国山东平邑以南直至海南岛的陵水县、东自台湾、西至成都的广大地区内多处试栽。ThenaturaldistributionareaisintheeastU.S.,under600maslwithhumidclimate.Byintroduction,thespecieshasbeenwidelyplantedinsubtropicalChina.1.1湿地松特性Featuresofslashpine适应性强、抗旱耐瘠薄土壤，造林成活率高，前期生长迅速，早期的固碳效益较为明显；

3、含脂量高、质量好，从而能带来明显的经济利益。Thespecieshasastrongadaptability,andcangrowunderdryandinfertilityconditions.Thesurvivalrateofafforestationisveryhigh,andthegrowthinearlyperiodisfast,thatshowsahighefficiencyincarbonsequestration.Theresinishighinbothproductivityandquality,w

4、hichbenefitsthelocaleconomy.在我国南方人工林结构中比例迅速增长TheproportionofthisspeciesamongartificialforestinChinaisgrowingrapidly.19971983Slashpineplaysanimportantroleinrecoveringthelocalenvironment,especiallyfortreatingthebarrenareawhichwastheresultsofirationalexploitation.

5、湿地松在红壤丘陵区生态恢复中发挥了重要作用TheroleofslashpineinecologicalrestorationinredearthareaSlashpineplantationwithanageof20years湿地松林1.2湿地松的引种历史/IntroductionhistoryinChina1930——小规模引种.Small-scaleintroduction1945——联合国的种子.SeedsprovidedbytheUnitedStates,asanassistantprogramforwar-

6、affectedcountries.1970--1995——大规模引种、栽培、研究.Large-scaleintroductionconducted.Currentlyisstillbeingintroduced.1995-2009——湿地松生态风险，二代问题Ecologicalriskinchina,includingtheregeneration.1988:880,000ha;1995:1.907millionha.Current:over2millionha.广东台山种子园Taishanbotanicalgar

7、deninGuangdongProvince.湖南、江苏、江西、广东.Hunan,Jiangsu,JiangxiandGuangdongNonresistancetoice-storm,insectsanddiseases,invasivespecies1.3科学问题Questions湿地松在中国生长状况如何?HowaboutthegrowthofslashpineinChina?湿地松在中国的适应性如何？HowabouttheadaptabilityofslashpineinChina?这些人工林生长状况以及存在的

8、风险是什么？Whatistheriskforeco-safetywithalargeareaofslashpineinChina?研究意义NecessityofthestudyPositiverole:Thelargeareaofslashpineplantationplaysanimportantroleinimprovingtheonced