干旱区生态环境知识资源中心(Arid): 地形因子对陕北黄土丘陵区防护林树种分布的影响

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	地形因子对陕北黄土丘陵区防护林树种分布的影响
其他题名	Effects of topographical factors on tree species distribution of shelter forest in Loess hilly region of northern Shaanxi
	姜丽; 魏天兴; 李亦然; 魏安琪
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2021
卷号	44 期号:6 页码:1763-1771
中文摘要	为了解地形因子对树种分布变化的影响,更科学地进行防护林空间配置,本研究利用陕西省延安市吴起县数字高程模型(DEM)数据以及两期树种分布数据,采用Pearson相关分析和随机森林模型,探讨陕西省延安市吴起县典型造林树种[刺槐(Robinia pseudoacacia)、山杏(Armeniaca sibirica)、油松(Pinus tabuliformis)和沙棘(Hippophae rhamnoides)]与地形因子(海拔、坡度、坡向、曲率、地形起伏度和地形粗糙度)的关系。结果表明:(1)20072019年刺槐、山杏和油松的分布呈增加趋势,研究区内分别在83.373%、73.271%和72.415%的区域呈增加趋势;沙棘的分布呈减少趋势,在61.737%的区域衰退。(2)通过Pearson相关分析和随机森林重要性检验,海拔和坡向是影响黄土高原地区典型造林树种分布的主要地形因子。(3)4种主要造林乔灌木树种刺槐、山杏、油松和沙棘适宜生长海拔范围分别为1410.105~1510.215 m、1444.873~1553.210 m、1380.132~1451.762 m和1365.621~1562.348 m。(4)刺槐适宜生长坡向范围为0~20.520°、50.280°~62.310°、82.440°~ 95.280°和277.280°~360.000°;山杏适宜生长坡向范围为0~81.270°和265.310°~360.000°;油松适宜生长坡向范围为0~100.180°;沙棘适宜生长坡向范围为0~74.540°和280.820°~360.000°。
英文摘要	As an important part of various ecosystems, forests play an important role in intercepting rainfall, maintaining runoff, regulating climate, preventing desertification, and soil and water conservation. The construction of shelterbelts has also gradually become an important means of solving the ecological and environmental problems in several countries. However, because of the excessive pursuit of increased green area in the early stages of afforestation and the failure to follow thesuitable site and suitable treeprinciple, the quality of protective forests formed in the early stages of afforestation in China has not been high overall. Thus, it is of great significance to study how topographic factors affect the distribution of tree species to realize sustainable development in shelterbelt system construction projects, promote the optimization of shelterbelt structures, and improve the quality of shelterbelts. In this study, digital elevation model data, forest resource survey results, and tree species distribution data from Wuqi County, Shaanxi Province, China were collected to investigate the influence of topographical factors on vegetation distribution and promote ecological restoration and shelter forest construction. The relationships between typical afforestation tree species (Pinus tabuliformis, Robinia pseudoacacia, Armeniaca sibiric, and Hippophae rhamnoides) and topographic factors (elevation, aspect, slope, curvature, recursive damped least squares, and topographic roughness index) were analyzed using Pearson analysis and a random forest model. The results demonstrated the following: (1) The distribution area of R. pseudoacacia, A. sibiric, and P. tabuliformis exhibited an upward trend from 2007 to 2019, increasing by 83.373%, 73.271%, and 72.415%, respectively. The distribution area of H. rhamnoides exhibited a declining trend, decreasing by 61.737%. (2) On the local scale, the influence of terrain factors on the distribution of tree species cannot be ignored, with the most important being altitude and aspect. Hence, different afforestation tree species should be selected according to altitudes and directions. (3) Specifically, the altitude ranges suitable for R. pseudoacacia, A. sibiric, P. tabuliformis, and H. rhamnoides were found to be 1410.105-1510.215 m, 1444.873- 1553.210 m, 1380.132-1451.762 m, and 1365.621-1562.348 m, respectively. The aspects suitable for R. pseudoacacia include 0-20.520°, 50.280°-62.310°, 82.440°-95.280°, and 277.280°-360.000°, whereas those for A. sibiric are 0-81.270° and 265.310°-360.000°. The suitable range for P. tabulaeformis is 0-100.180°, whereas those for H. rhamnoides are 0-74.540° and 280.820°-360.000°.
中文关键词	树种分布 ; 地形因子 ; 随机森林模型 ; 黄土高原
英文关键词	distribution of tree species topographical factors random forest model Loess Plateau
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:7114554
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377656
作者单位	姜丽, 北京林业大学;;北京林业大学, 水土保持国家林业局重点实验室;;林业生态工程教育部工程研究中心, ;;, 北京;;北京 100083;;100083, 中国.; 魏天兴, 北京林业大学;;北京林业大学, 水土保持国家林业局重点实验室;;林业生态工程教育部工程研究中心, ;;, 北京;;北京 100083;;100083, 中国.; 李亦然, 北京林业大学;;北京林业大学, 水土保持国家林业局重点实验室;;林业生态工程教育部工程研究中心, ;;, 北京;;北京 100083;;100083, 中国.; 魏安琪, 秦皇岛市气象灾害防御中心, 秦皇岛, 河北 066000, 中国.
推荐引用方式 GB/T 7714	姜丽,魏天兴,李亦然,等. 地形因子对陕北黄土丘陵区防护林树种分布的影响[J],2021,44(6):1763-1771.
APA	姜丽,魏天兴,李亦然,&魏安琪.(2021).地形因子对陕北黄土丘陵区防护林树种分布的影响.干旱区地理,44(6),1763-1771.
MLA	姜丽,et al."地形因子对陕北黄土丘陵区防护林树种分布的影响".干旱区地理 44.6(2021):1763-1771.