[1]李 强,刘 伟,何 彩,等.民勤荒漠区花棒人工林平茬复壮效果研究[J].陕西林业科技,2022,50(06):12-16.[doi:10.3969/j.issn.1001-2117.2022.06.003]
　LI Qiang,LIU Wei,HE Cai,et al.Stumping for Rejuvenation of Hedysarum scoparium Plantation in Minqin Desert Area[J].,2022,50(06):12-16.[doi:10.3969/j.issn.1001-2117.2022.06.003]
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民勤荒漠区花棒人工林平茬复壮效果研究()
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《陕西林业科技》[ISSN:1006-6977/CN:61-1281/TN]

卷:
50
期数:
2022年06期
页码:
12-16
栏目:
试验与调查研究
出版日期:
2022-12-31

文章信息/Info

Title:
Stumping for Rejuvenation of Hedysarum scoparium Plantation in Minqin Desert Area
文章编号:
1001-2117(2022)06-0012-05
作者:
李 强; 刘 伟; 何 彩; 张 军; 牟德生; 赵连鑫; 陈岩辉*
(武威市林业科学研究院,甘肃 武威 733000)
Author(s):
LI Qiang;  LIU Wei;  HE Cai;  ZHAGN Jun;  MOU De-sheng;  ZHAO Lian-xin;  CHEN Yan-hui*
(Wuwei Academy of Forestry, Wuwei, Gansu 733000)
关键词:
荒漠区;  花棒;  平茬复壮;  民勤县
Keywords:
Desert area;  Hedysarum scoparium;  stumping for rejuvenation
分类号:
S750
DOI:
10.3969/j.issn.1001-2117.2022.06.003
文献标志码:
A
摘要:
为探究民勤荒漠区退化花棒人工防护林平茬复壮的可行性,在武威市石羊河林业总场小西沟分场开展不同平茬高度对花棒生长以及土壤含水量的影响研究。结果表明,平茬2 a后各平茬处理林地中植物种类均为12种,植被盖度、物种多样性指数、均匀度指数、优势度指数变化相对较小,且与未平茬处理差异不明显。花棒平茬后会萌发大量枝条,随着时间推移,各平茬处理的萌条高度、冠幅、基径呈增加趋势,萌条数量呈减少趋势,萌条的数量、高度、冠幅、基径没有明显规律,平茬后多数萌蘖枝条从基部萌发。平茬后早期土壤水分基本维持原有水平,随着花棒平茬后恢复年限的延续,0～80 cm土层土壤含水量逐年升高。民勤荒漠区退化花棒人工防护林平茬复壮可行,建议在生产实践中,在充分考虑防护林实际配置情况的前提下,进行有选择性地平茬,平茬高度0 cm为佳,并应该隔株、隔行或分年度进行,避免一次性大面积平茬,平茬5 a后应再次更新复壮。
Abstract:
In order to explore the feasibility of stumping for rejuvenation of Hedysarum scoparium plantation in Minqin desert area, field experiments were carried out to study the effects of different stump height on the plant growth of Hedysarum scoparium and soil water content in Wuwei Shiyanghe Forestry General Farm Xiaoxigou Parvial Field. Results showed that two years after stumping, the number of species in the plot were 12, and the vegetation coverage, species diversity, uniformity, dominance had little variation for every treatments. Large numbers of branches sprouted after stumping, sprouts length, crown breadth and stump base diameter increased, but the sprout numbers decreased with the time within two years. The sprout numbers, stump height, crown breadth and stump base diameter were not significantly different in each stumping treatments. Soil water content at 0-80 cm basically maintained at the original level in the early stage, but increased year by year with the continuation of the restoration of Hedysarum scoparium after stumping. It is feasible to conduct stumping for rejuvenation of Hedysarum scoparium plantation in Minqin desert area. In order to maintain the ecological protection benefits of the artificial shelterbelt, stumping should be carried out selectively according to shelterbelt configuration. Stump height at 0 cm is preferred and stumping should be operated at intervals of one row or one plant or at different years to avoid large-scale stumping at one time.

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备注/Memo

备注/Memo:
收稿日期:2022-08-01
基金项目:甘肃省陇原青年创新创业人才(团队)项目; 中央财政林业科技推广项目([2020]ZYTG09)。
作者简介:李强(1985-),男,林业高级工程师,主要从事荒漠化防治。
*通信作者
更新日期/Last Update: 2022-12-25