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林业科学 ›› 2014, Vol. 50 ›› Issue (5): 101-108.doi: 10.11707/j.1001-7488.20140513

• 论文与研究报告 • 上一篇    下一篇

黄羊滩人工固沙林生态稳定性评价

邢存旺1,2,3, 黄选瑞1, 李玉灵1, 马增旺2,3, 付晓燕4   

  1. 1. 河北农业大学林学院 保定 071000;
    2. 河北省林业科学研究院 石家庄 050061;
    3. 河北省林木良种工程技术研究中心 石家庄 050061;
    4. 河北小五台山国家级自然保护区管理局 蔚县 075700
  • 收稿日期:2013-03-17 修回日期:2014-03-28 出版日期:2014-05-25 发布日期:2014-06-06
  • 基金资助:

    国家林业局林业公益性行业科研专项“冀北防风固沙林优化经营调控技术研究”(201104104)。

Ecological Stability of Sand-Fixed Plantations in Huangyangtan

Xing Cunwang1,2,3, Huang Xuanrui1, Li Yuling1, Ma Zengwang2,3, Fu Xiaoyan4   

  1. 1. College of Forestry, Agricultural University of Hebei Baoding 071000;
    2. Hebei Academy of Forestry Science Shijiazhuang 050061;
    3. Hebei Engineering Research Center for Tree Varieties Shijiazhuang 050061;
    4. Xiaowutai Mountain National Nature Reserve Management Bureau Yuxian 075700
  • Received:2013-03-17 Revised:2014-03-28 Online:2014-05-25 Published:2014-06-06
  • Contact: 黄选瑞

摘要:

人工固沙林生态稳定性是决定生态功能持续健康发挥的重要前提。以河北省黄羊滩林场人工固沙林为对象,建立包括生命周期、树种抗性和系统防护功能相关的12项指标的生态稳定性评价指标体系。应用模糊数学隶属函数值法,对该地区不同林分类型人工固沙林的生态稳定性进行评价。结果表明:人工固沙林生态稳定性高的林分包括沙地柏林、柠条林、樟子松林、沙地柏×紫穗槐林、侧柏林、樟子松×紫穗槐林、沙枣林,该类林分基本适应造林地环境条件,对于极端干旱有较强的抵抗能力,并发挥了固沙林的防护功能。白榆林、黄柳林、新疆杨林3种林分呈现出中度稳定状态;以小美旱杨、小叶杨、刺槐3个树种为主要经营对象的林分处于低稳定状态。利用极端干旱事件,将林木的死亡率、落叶率和生长量作为抗旱指标,对固沙树种的抗旱性进行分析排序。针对影响因子,对不同稳定状态的林分类型提出经营对策。

关键词: 人工固沙林, 生态稳定性, 评价, 树种抗旱性, 黄羊滩

Abstract:

Ecological stability is important to maintain ecological function of sand-fixed plantation. This study was conducted in sand-fixed plantation in Huangyangtan, Hebei Province. An index system for ecological stability assessment was established based on 12 parameters in life cycle, tree species resistance and system protection function. The ecological stability of different sand-fixed plantations in the study region was evaluated by using subordinate function of fuzzy mathematics. The result showed that some wind-breaking and sand-fixed forests, including Sabina vulgaris, Caragana korshinskii, Pinus sylvestris var. mongolica, Sabina vulgaris×Amorpha fruticosa, Platycladus orientalis, Pinus sylvestris var. mongolica ×Amorpha fruticosa, Elaeagnus angustifolia, had relatively strong ecological stability. The result suggested these plantations were suitable to local environment, strong resistant to extreme drought, and beneficial for exerting their edological function. The plantations including Ulmus pumila, Salix gordeivii and Populus bolleana, had the middle level of ecological stability. While plantations including Populus simonii×(Populus pyramidalis+Salix matsudana) cv.Poplaris, Populus simonii and Robinia pseudoacacia, had the lower level of ecological stability than others. In 2009 year, a severe drought happened in Huangyangtan, which facilitated an investigation on the drought resistance among main tree species under natural conditions. Mainly based on the comparison of mortality and defoliation, the drought resistance of the 12 tree species was ranked. The management strategies for plantations with different stability types were proposed based on influence factors.

Key words: sand-fixed plantation, ecological stability, evaluation method, drought resistance, Huangyangtan sandy land

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