浙江省红树林分布和造林成效分析  

The mangrove forest distribution and analysis of afforestation effect in Zhejiang Province

作　　者：吴伟志[1,2] 赵志霞 杨升 梁立成[2] 陈秋夏 卢翔[3] 刘星[3] 张小伟 WU Weizhi;ZHAO Zhixia;YANG Sheng;LIANG Licheng;Chen Qiuxia;LU Xiang;LIU Xing;ZHANG Xiaowei(Zhejiang Forest Resources Monitoring Center,Hangzhou 310020,China;Zhejiang Forestry Survey planning and Design Co.,Ltd.,Hangzhou 310020,China;Zhejiang Institute of Subtropical Crops,Wenzhou 325005,China)

机构地区：[1]浙江省森林资源监测中心,浙江杭州310020 [2]浙江省林业勘测规划设计有限公司,浙江杭州310020 [3]浙江省亚热带作物研究所,浙江温州325005

出　　处：《热带海洋学报》2022年第6期67-74,共8页Journal of Tropical Oceanography

基　　金：浙江省“十四五”育种专项沿海防护林树种新品种选育(2021C02070-6);浙江、福建红树林生物资源调查(2017FY100701)~~。

摘　　要：基于不同时期浙江省红树林造林数据及林分生长监测,分析浙江省红树林时空变化和区域造林生长差异。结果表明:(1)截止到2020年浙江省红树林面积总计386.77hm^(2),其中温州市257.01hm^(2),台州市129.76hm^(2),主要造林树种为秋茄(Kandelia obovata)(368.48hm^(2))和苦槛蓝(Myoporum bontioides)(18.29hm^(2));(2)不同时期红树林面积占现有总面积的比例分别为0.11%(2000年前)、3.72%(2000—2010年)、36.17%(2011—2015年)和59.99%(2016—2020年);(3)2000年以前和2000—2010年的秋茄平均株高分别为205.5cm和246.13cm,林分盖度分别高达67.69%和77.90%;2011—2015年和2016—2020年秋茄株高分别为106.63cm和50.17cm;盖度分别为68.66%和24.56%;(4)不同区域红树林种植区滩涂沉积物中碱解氮、速效钾、有机质和含盐量存在显著性差异(P<0.05);(5)龙港市新美洲村的4年生秋茄株高显著高于树排沙岛(P<0.05),龙湾区树排沙岛的4年生秋茄基径则显著高于乐清西门岛(P<0.05)。近年来,浙江省红树林种植面积显著增加,但红树林种群结构单一,矮化为灌木群落,并且生长发育受土壤盐度影响较大。Based on the mangrove plantation data and stand growth monitoring at different periods, we analyzed the spatial and temporal variation of mangrove forests and regional silvicultural growth differences in Zhejiang Province. The results show that:(1) The total area of mangrove forests in Zhejiang Province by 2020 is 386.77 hm^(2), including 257.01 hm^(2) in Wenzhou and 129.76 hm^(2) in Taizhou;the main afforestation species are Kandelia obovata(368.48 hm^(2)) and Myoporum bontioides(18.29 hm^(2));(2) The proportion of mangrove area at different periods was 0.11%(before 2000), 3.72%(2000–2010), 36.17%(2011–2015) and 59.99%(2016–2020), respectively;(3) The average heights of Kandelia obovata before 2000 and 2000–2010 were 205.5 cm and 246.13 cm, respectively;the cover was as high as 67.69% and 77.9%. And the average heights of Kandelia obovata in 2011–2015 and 2016-2020 was 106.63 cm and 50.17 cm, respectively;the cover was 68.66% and 24.56%;(4) There were significant differences in the alkali-hydrolyzed nitrogen, available potassium, organic matter and salt content in tidal flat sediments of mangrove plantations in different regions;(5) The height of 4-year-old Kandelia obovata in different regions was significantly higher(P<0.05) in the Xinmeizhou village, Longgang city than in the Shupaisha Island, while the diameter was significantly higher(P<0.05) in the Shupaisha Island than in the XimenIsland. The area of mangrove planting in Zhejiang Province has increased significantly in recent years;mangrove populations are growing vigorously, and the depression of early planted stands is high;the growth of Kandelia obovata varies significantly in different regions.

关 键 词：浙江省 红树林 时空分布 秋茄 种群生长 

分 类 号：S718.5[农业科学—林学]