华北落叶松人工林的林木生长经营效果——以宁夏回族自治区固原市原州区为例
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S753.5, S791.229

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国家自然科学基金区域创新发展联合资助项目“黄土高原泾河流域森林植被水文功能的形成与补偿机制”(U20A2085); 国家重点研发计划(2022YFF1300404); 宁夏回族自治区财政林业补助资金项目(宁林发〔2022〕22号)


Growth and Management Effect of Larix Principis-rupprechtii Plantation —A Case Study in Yuanzhou District, Guyan City, Ningxia Hui Autonomous Region
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    摘要:

    [目的] 分析华北落叶松人工林林分生长经营效果,为科学合理经营华北落叶松人工林,充分发挥其生态功能效益和投入成本提供参考。[方法] 采用查阅档案资料、访谈和野外调查方法,对泾河流域上游宁夏回族自治区固原市原州区主要华北落叶松在传统森林经营和近自然森林经营的投入成本和林分生长效果开展调查,以投入成本、平均胸径、平均树高、每1 hm2蓄积量、每1 hm2地上生物量为衡量指标,应用模糊数学隶属函数值法定量地对其林木生长效果进行综合比较与评价。[结果] 不同森林经营模式下林木生长效果差异明显,其中近自然森林经营中黄家沟和叠叠沟的林分平均树高、胸径、每1 hm2蓄积量、每1 hm2地上生物量均高于传统森林经营的其他5个点林分。固原市原州区不同经营模式下华北落叶松人工林的林分生长效果差异明显(p<0.05),不同立地林分生长效果由强到弱排序为黄家沟(0.995 8)>叠叠沟(0.628 8)>青石峡(0.224 6)>红庄梁(0.222 7)>马东山(0.159 8)>程儿山(0.048 6)>隆德沟(0)。[结论] 传统森林经营模式的林分生长效果较差,实施多功能近自然森林抚育经营有利于培育大径材加速森林的生长发育。

    Abstract:

    [Objective] The effect of growth and management of a Larix principis-rupprechtii plantation was analyzed in order to provide a reference for the scientific and rational management of L. principis-rupprechtii plantations by giving full attention to ecological functions and cost-effectiveness. [Methods] The methods used in this study included consulting archives, conducting interviews, and field investigations regarding the input costs and growth of stands of the main L. principis-rupprechtii under traditional forest management and under near-natural forest management in Yuanzhou District, Guyuan City, Ningxia Hui Autonomous Region located in the upper reaches of the Jinghe River basin. Measured parameters included input costs, average diameter at breast height, average tree height, stock volume per hectare, and aboveground biomass of per hectare. The fuzzy mathematics subordination function value method was used to quantitatively compare and evaluate the growth of trees. [Results] The growth of trees under different forest management models was significantly dissimilar. The average height, diameter at breast height, stock volume per hectare, and aboveground biomass per hectare at Huangjiagou and Diediegou under near-natural forest management were greater than under traditional forest management. The comprehensive evaluation of the growth effect of the many plantations of L. principis-rupprechtii under different management models in Yuanzhou District of Guyuan City was extremely obvious (p<0.05). The stand growth effect followed the order (ranging from strong to weak) of Huangjiagou (0.995 8)>Diediegou (0.628 8)>Qingshixia(0.224 6)>Hongzhuangliang (0.222 7)>Madong Mountain (0.159 8)>Chenger Mountain (0.048 6)>Longdegou (0.000 0). [Conclusion] Tree growth under the traditional forest management model was poor. Therefore, implementation of multi-functional and near-natural target tree management measures is conducive to cultivating large diameter timber to accelerate the growth of forests.

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王正安,余治家,王振忠,吴苗,佘萍,马杰,贾宝光.华北落叶松人工林的林木生长经营效果——以宁夏回族自治区固原市原州区为例[J].水土保持通报,2023,43(5):244-251

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  • 收稿日期:2022-10-15
  • 最后修改日期:2023-02-06
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  • 在线发布日期: 2023-11-30
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