...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Forestry Research >Woody Species Diversity and Structure of Protected Woodlands Adjacent to Free Grazing Land Woodland at Dugda Woreda, Oromia, Ethiopia
【24h】

Woody Species Diversity and Structure of Protected Woodlands Adjacent to Free Grazing Land Woodland at Dugda Woreda, Oromia, Ethiopia

机译：邻近邻近的土地林地的木质物种多样性和结构的受保护林地，埃塞俄比亚Oromia

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The study was conducted in protected woodland and free graze woodland located in Dugda Woreda, Oromia state, Ethiopia. The objective of the study was to explore the floristic composition, structure, and regeneration of woody species. In the park, the vegetation ecology has not been studied up to date, which is necessary for conservation. The systematic sampling technique was used to collect vegetation and human disturbance (presence and absence) data from August to December 2017. The vegetation data were collected from 30 plots from each woodland with a size of 900?m 2 (30?m?×?300?m) for tree/shrub, while subplots of size 400?m 2 (20?m?×?20?m) for sapling, respectively, were established in the main plots. Individual tree and shrub diameters at breast height (DBH) ≥2.5?cm and height?≥?2?m were measured using a tape meter and clinometer, respectively. Diameter at breast height (DBH), frequency, density, basal area, and importance value index (IVI) were used for vegetation structure description, while the densities of mature trees, sapling, and seedling were used for regeneration. A total of 446 individual stems from free grazed woodland and 641 individual stems from protected woodland with a DBH of ≥2.5?cm were encountered from 30 studied sample plots that are protected and free grazed woodlands. Of these, from the total woody species, 68.42% were trees and 31.57% shrubs found in protected woodland; 76.92% were trees and 23.07% shrubs found in free grazed woodland. The total basal area of the woody plant was 3.1?±?1?m 2 /ha in free grazed woodland and 4.2?±?2?m 2 /ha in protected woodland, calculated for 19 woody species. Fabaceae, Balanitaceae, Capparidaceae, Verbenaceae, and Boraginaceae families were the most abundant families in both woodlands. However, there is a good initiation for the conservation of the park; still, the vegetation of the park was threatened by human-induced fire following intensive farming, gold mining, and overgrazing.
机译：该研究是在受保护的林地和位于埃塞俄比亚奥罗马州奥罗马州奥罗马州奥罗马州的林地和自由擦拭林地进行的。该研究的目的是探讨木质物种的植物组成，结构和再生。在公园，植被生态学尚未研究迄今为止，这是保护所必需的。系统采样技术用于从8月到2017年8月收集植被和人为干扰（存在和缺席）数据。植被数据从每个林地的30个地块收集，大小为900？M 2（30？M？××？为树/灌木300？M），在主图中分别建立了用于树苗的尺寸400？M 2（20≤m≤x≤20μm）的小块。在乳房高度（DBH）≥2.5Ωcm和高度时，单独的树和灌木直径分别使用胶带表和阈值测量≥2μmΩ·2μm。乳房高度（DBH）的直径，频率，密度，基础区域和重要性值指数（IVI）用于植被结构描述，而成熟树木，树苗和幼苗的密度用于再生。来自免费吃草林地的446个个体茎和641个单独的受保护的林地的茎≥2.5厘米的受保护的林地患有30所研究的样品地块，这些地块受到保护和免费的林地。其中，来自总木质物种，68.42％是树木和31.57％的灌木，在受保护的林地中发现; 76.92％是树木和23.07％的灌木，在免费吃草林地。木质工厂的总基面积为3.1？±1？1？1？M 2 / Ha在免费的林地和4.2？±2？2？2？m 2 / ha，为19种木本植物计算。 Fabaceae，Balanitaceae，Capparidaceae，Wallenaceae和Boraginaceae家庭是林地中最丰富的家庭。但是，对公园的保护有很好的启动;尽管如此，在密集的农业，金矿和过度灌注之后，公园的植被受到人类诱发的火灾威胁。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号