Peng Yougui, Chen Guizhu, Wu Pengfei, Miao Shenyu, Yin Min, She Zhongming
School of Environmental Science and Engineering, Zhongshan University, Guangzhou 510275, China.
Ying Yong Sheng Tai Xue Bao. 2005 Aug;16(8):1383-8.
Three mangrove species Sonneratia caseolaris, Kandelia candel and Aegiceras corniculatum were planted in different fishponds in April 2002 with three planting--breeding area proportions of 45 : 55, 30 : 70 and 15 : 85, respectively, and the growth of test mangrove plants were surveyed during 2 years after planting. The results showed that S. caseolaris and A. comiculatum could grow well in the coupling system, while K. candel could not. The survival percentage of S. caseolaris, K. candel and A. corniculatum was 92.9%, 93.9% and 44.7%, respectively. During the 2 years, the height of S. caseolaris increased 457.0 cm, and its basal diameter increased from 12.6 mm to 98.7 mm. A. corniculatum had an increment of 26.1 cm in height and 36.5 mm in basal diameter, while K. candel only had an increment of 20.4 cm in height and 26.4 mm in basal diameter. Based on the height, basal diameter, and biomass of trunk, branch, leaf and root, regressive equations of the four organs' biomass were obtained, and the whole biomass of standing trees in the coupling system was calculated. The average biomass of S. caseolaris was 5 597.8 g x m(-2) in April 2004, being increased 5 559.5 g x m(-2) in 2 years. At the same period, the standing biomass of A. corniculatum and K. candel was 962.5 g x m(-2) and 66.0 g x m(-2), with an increase of 932.7 g x m(-2) and 57.0 g x m(-2), respectively. The biomass of plant organs was in the order of stem > branch > root > leaf for S. caseolaris, leaf > branch > stem > root for A. corniculatum, and stem > root > leaf > branch for K. candel. The litter fall production of mangrove plants in 2 years was 1 149.2 g x m(-2), 170.8 g x m(-2) and 7.1 g x m(-2) for S. caseolaris, A. corniculatum and K. candel, respectively. Leaf litter took up more than half of the whole litter fall. From April 2002 to April 2004, the net primary production of S. caseolaris, A. corniculatum and K. candel was 7 048.9 g x m(-2), 1 105.9 g x m(-2) and 93.0 g x m(-2), respectively. The litter fall production occupied 20.5% of the net primary production for S. caseolaris, 15.4% for A. corniculatum, and 7.6% for K. candel, which meant that high productivity was accompanied by high return rate.
2002年4月，将三种红树植物海桑、秋茄和桐花树分别种植于不同的鱼塘中，种植 - 养殖面积比例分别为45∶55、30∶70和15∶85，并在种植后的2年内对受试红树植物的生长情况进行了调查。结果表明，海桑和桐花树在该耦合系统中生长良好，而秋茄则不能。海桑、秋茄和桐花树的成活率分别为92.9%、93.9%和44.7%。在这2年中，海桑的高度增加了457.0厘米，基径从12.6毫米增加到98.7毫米。桐花树的高度增加了26.1厘米，基径增加了36.5毫米，而秋茄的高度仅增加了20.4厘米，基径增加了26.4毫米。根据树高、基径以及树干、树枝、树叶和树根的生物量，得出了这四个器官生物量的回归方程，并计算了耦合系统中现存树木的总生物量。2004年4月，海桑的平均生物量为5 597.8克·米⁻²，2年内增加了5 559.5克·米⁻²。同期，桐花树和秋茄的现存生物量分别为962.5克·米⁻²和66.0克·米⁻²，分别增加了932.7克·米⁻²和57.0克·米⁻²。海桑植物器官的生物量顺序为茎＞枝＞根＞叶，桐花树为叶＞枝＞茎＞根，秋茄为茎＞根＞叶＞枝。2年内，海桑、桐花树和秋茄的凋落物产量分别为1 149.2克·米⁻²、170.8克·米⁻²和7.1克·米⁻²。落叶占整个凋落物的一半以上。从2002年4月到2004年4月，海桑、桐花树和秋茄的净初级生产力分别为7 048.9克·米⁻²、1 105.9克·米⁻²和93.0克·米⁻²。凋落物产量占海桑净初级生产力的20.5%，占桐花树的15.4%，占秋茄的7.6%，这意味着高生产力伴随着高归还率。
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