| 封禁管理对严重退化群落养分循环与能量的影响 |
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| 引用本文： | 谢锦升,杨玉盛,陈光水,黄荣珍,郑本暖.封禁管理对严重退化群落养分循环与能量的影响[J].山地学报,2002,20(3):325-330. |
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| 作者姓名： | 谢锦升 杨玉盛 陈光水 黄荣珍 郑本暖 |
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| 作者单位： | 1. 福建农林大学林学院,福建,南平,353001
2. 福建省水土保持试验站,福建,福州,350003 |
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| 摘 要： | 福建省长汀县河田镇是我国南方红壤区典型的严重水土流失区之一，自20世纪80年代以来采取了许多有效的治理措施。本文对封禁管理和对照（未治理）群落的生物量、生产力、养分循环和能量进行了研究，结果表明：封禁管理后群落的生产力得到要大的提高，生物量是对照的75．7倍，N、P、K、Ca、Mg的积累量分别是对照的49．4、59．2、55．0、48．4和70．0倍，能量现存量是对照的73倍；封禁管理后乔木层为营养元素和积累量积累的主体，灌木层、草本层和苔藓层的养分与能量的积累量占群落积累量比重不大，但对该类型退化生态系统的恢复具有重要意义；封禁管理后群落的养分循环已较为畅通，太阳能转经达到0．81％，而对照的仅为0．023％；因此封禁管理后群落的养分循环功能和能量生产能力已得到一定程度的恢复，这种生态重建模式值得类似地区推广与应用。
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| 关 键 词： | 土壤侵蚀 封禁管理 马尾松群落 养分循环 热值 能量 |
| 文章编号： | 1008-2786(2002)03-0325-06 |
| 修稿时间： | 2002年1月5日 |
Studies on the Nutrient Circulation and Energy of the Serious Degraded Community after Closing of Hillsides and Management to Facilitate Afforestation |
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| XIE Jin sheng ,YANG Yu sheng ,CHEN Guang shui ,HUANG Rong zhen and ZHENG Bei nuan.Studies on the Nutrient Circulation and Energy of the Serious Degraded Community after Closing of Hillsides and Management to Facilitate Afforestation[J].Journal of Mountain Research,2002,20(3):325-330. |
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| Authors: | XIE Jin sheng YANG Yu sheng CHEN Guang shui HUANG Rong zhen and ZHENG Bei nuan |
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| Institution: | XIE Jin sheng 1,YANG Yu sheng 1,CHEN Guang shui 1,HUANG Rong zhen 1 and ZHENG Bei nuan 2 |
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| Abstract: | Hetian town, Changting county, Fujian province was one of serious soil erosion area of the southern red soil area of our country, and has adopted many effective measures governing since in the 80's 20 centuries, one of measure that the closing of hillsides and management to facilitate afforestation. In this paper the biomass , productive forces , nutrient circulation and the energy of the governing and contrast ( the not governing ) community have been studied, and the results showed that: the productivity of the community after governing had got the very big raise , and the biomass was 75.7 times that contrasts , and the accumulation of N , P , K , Ca and Mg was respectively 49.4 and 59.2 and 55.0 and 48.4 and 70.0 times that contrasts , the standing crop of energy was 78.3 times that contrasts ; After governed the arbor layer became the main body of the accumulation of nutrient and energy , and the accumulation of nutrient and energy of bush layer , herbaceous layer and bryophyte layer occupied total accumulation of community small proportion, but possessed important significance to the restoration of this type degraded ecosystem ; The nutrient circulation that the governed community was comparatively unimpeded , and the solar energy conversing efficiency was up to 0.81% , but who contrasts only was 0.023% ; So the nutrient circulation function and energy production capacity of the community has got the recovering of certain level after governed, this kind of restoration model of ecology was worth the similar district popularizing and applied. |
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| Keywords: | soil erosion closing of hillsides and management to facilitate afforestation P massoniana community nutrient cycle caloric value energy |
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