四川农业大学学报

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不同管护类型毛竹林生产力分配格局及其土壤环境特征

翁玉臻1,范少辉2,刘广路3,漆良华3,杜满义3,郑宏1   

  1. 1. 福建省洋口国有林场
    2. 国际竹藤网络中心,竹藤科学与技术重点实验室
    3. 国际竹藤中心,竹藤科学与技术重点实验室
  • 收稿日期:2011-11-03 修回日期:2011-11-28 出版日期:2011-12-25 发布日期:2011-12-26
  • 通讯作者: 范少辉

The productivity and soil environmental characteristics of Phyllostachys edulis forests with different management measures

  • Received:2011-11-03 Revised:2011-11-28 Online:2011-12-25 Published:2011-12-26
  • Contact: FAN ShaoHui

摘要:

以福建省天宝岩自然保护区不同管护类型的毛竹林为研究对象,对毛竹林Ⅰ (挖笋+劈草)、Ⅱ (挖笋+劈草+专用肥)和Ⅲ (挖笋+劈草+专用肥+灌水)的生产力和土壤环境特征进行了研究。结果表明:3种林分生物量的排列顺序为Ⅱ>Ⅲ>Ⅰ,分别为287 213.76、240 574.55、128 725.94 ㎏?hm-2;生产力的排列顺序为Ⅱ>Ⅲ>Ⅰ,分别为65 731.50、51 703.97和28 801.23 ㎏?hm-2?a-1。3种林分地上部分年分配量的排列顺序为Ⅲ>Ⅱ>Ⅰ,分别为74.75%、74.91%和75.36%。施肥、施肥+灌水等经营措施的实施,提高了林分的生产力,但是降低了地上部分生产力质量分数。管护类型对土壤理化性质有重要影响,施肥、施肥+灌水措施降低了土壤的密度,提高了土壤孔隙度和持水能力;但是有机质、全氮、全磷、水解氮、速效钾含量降低,可能对林分可持续生产能力产生不利影响。管护类型对土壤酶活性有重要影响,施肥、施肥+灌水等经营措施降低了土壤蔗糖酶和过氧化氢酶活性,但土壤磷酸酶活性升高,较低的过氧化氢酶活性可能抑制毛竹及林下植被的生长。

关键词: 毛竹林, 生产力, 管护类型, 土壤环境, 天宝岩自然保护区

Abstract:

The productivity and soil environmental characteristics were measured in Phyllostachysedulis forests with different management measures in Tianbaoyan Nature Reserve, Fujian Province. The results showed that the biomass of bamboo forests was in the order of Ⅱ(shoot digging+ herb chopping+ special fertilizer)>Ⅲ(shoot digging+ herb chopping+ special fertilizer+ irrigation)>Ⅰ(shoot digging+ herb chopping),and was 143 998.50,105 872.25, and 56 296.63 kg?hm-2, respectively. The productivity of the forests was in the order ofⅡ>Ⅲ>Ⅰ, and was 65 899.37,51 780.25,and 28 676.86 kg?a-1?hm-2, respectively. The aboveground biomass increment fraction was in the order of Ⅲ>Ⅱ>Ⅰ,and it accounted for 74.75%,74.91%, and 75.36%, respectively. The productivity of those forests was increased with the measure of fertilization and irrigation, while the aboveground biomass increment fraction was decreased. The soil physical and chemical properties were different with different management measures. The bulk density of soil decreased and water capacity increased with special fertilizer or irrigation, and the no-capillary pore increased. The amount of organic matters, total nitrogen, total phosphors, hydrolysable nitrogen, and available potassium was decreased with intensities management measures. It may damage the forest sustainable productivity. The enzyme activities were affected by different management measures. The activity of catalase decreased in the forest Ⅱ and Ⅲ, and it may dampen the growth of bamboo.

Key words: Phyllostachys edulis forests, productivities, management measures, soil physical and chemical properties, Tianbaoyan Nature Reserve

中图分类号: 

  • S714.7