Biomass and Energy of Different Improving Patterns in Severely Eroded Area of Western Fujian Province

LIN Kai wang

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Biomass and Energy of Different Improving Patterns in Severely Eroded Area of Western Fujian Province

- Biomass and Energy of Different Improving Patterns in Severely Eroded Area of Western Fujian Province
- Bulletin of Soiland Water Conservation Vol. 21, Issue 3, Pages: 20-24(2002)
- 作者机构：
  
  福建省水土保持与乡村发展亚行贷款项目办,福建,福州,350003
- 作者简介：
- 基金信息：
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- Published：2002
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LIN Kai wang. Biomass and Energy of Different Improving Patterns in Severely Eroded Area of Western Fujian Province[J]. Bulletin of Soiland Water Conservation, 2002, 21(3): 20-24.
DOI：

LIN Kai wang. Biomass and Energy of Different Improving Patterns in Severely Eroded Area of Western Fujian Province[J]. Bulletin of Soiland Water Conservation, 2002, 21(3): 20-24. DOI：

摘要

通过对福建省宁化禾口严重侵蚀紫色土采取粗放治理、强化治理、封禁治理 3种不同治理措施及对照群落的生物量和能量进行研究

结果表明 :强化治理的马尾松平均木生物量为 37.6 5 kg

分别是粗放治理和未治理地的 2 .7倍和 13.7倍 ;群落总生物量为 5 6 .90 8t/ hm2

分别是粗放治理和未治理的 3.1倍和2 7.5倍。不同治理措施群落各层次的干重热值大小顺序均为乔木层 >灌木层 >草本层

对照则为乔木层 >草本层 ;不同治理措施群落的能量主要积累在乔木层中 ;强化治理的能量现存量为 114 76 4 .7k J/ m

分别是粗放治理和未治理的 3.1倍和 2 7.5倍。然而

强化治理的群落生物量和能量现存量仍低于 2 0世纪 6 0年代中期在原马尾松疏林地采取的封禁治理

表明处于严重退化阶段的紫色土生态恢复和重建具有长期性特点 ;同时表明侵蚀退化紫色土的治理应根据其所处的不同退化阶段而采取相应的治理措施

才能收到最佳的治理效果。

Abstract

Severely eroded purple soil was studied by three different manag ement patterns

which are extensive management

intensive management

enclosing and tending management

at Hekou town

Ninghua county

and the biomass and energy of control community were also investigated. The results showed that the sing let reeaverag e biomass of pinus massonians by intensive management was 37.65 kg

being 2.7 and 13.7 times greater than that of extensive management and the control respectively; and the total biomass of communities was 56.908 t/hm2

being 3.1 and 27.5 times as high as that of extensive management and the control respectively. The gross caloricvalue of different stratum in three management patterns was tree stratum> shrub st ratum> herbage stratum

while for the control

the sequence was tree stratum> herbage stratum.The communi ty energ y o f di fferent manag ement pat terns was mainly accumulated in t ree st ratum. The standing cro p energy of ex tensive manag ement w as 114 764.7 kJ/m2

being 3.1 and 27.5 times greater than that of extensive manag ement and the control respectively. However

the biomass and the standing crop energy for intensive manag ement were still lower than those of enclosing and tending management

which indicated that the restoration of severely eroded purple soil needed a long time

and the measures of deg raded purple soil control should be taken based on different degradation phase.

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