文献类型：期刊文献

中文题名：陕北黄土坡面微地形对乔木生长特征的影响

英文题名：Effects of Microtopography on Tree Growth Characteristics in Loess Slope of Northern Shaanxi

作者：赵维军[1] 张岩[1] 朱清科[1] 李萍[2] 姚文俊[1] 马欢[1] 卜耀军[1,3]

第一作者：赵维军

通信作者：Zhu, Q.

机构：[1]北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室;[2]中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室;[3]榆林学院

年份：2014

卷号：22

期号：1

起止页码：69-79

中文期刊名：应用基础与工程科学学报

外文期刊名：Journal of Basic Science and Engineering

收录：CSTPCD;;EI(收录号：20141017420374);Scopus(收录号：2-s2.0-84894548121);北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金："十二五"科技支撑项目(2011BAD38B0601)

语种：中文

中文关键词：微地形;乔木生长特征;影响;黄土;陕北

外文关键词：microtopography ; tree growth characteristics; effect ;loess; Northern Shaanxi

分类号：S774

摘要：近自然植被恢复是陕北黄土丘陵沟壑区生态修复的主要方法.为了使人工整地等近自然植被恢复方法更为科学,选取陕北吴起县0.12km2的阴坡和0.06km2的阳坡作为研究区,利用相关分析与方差分析等方法比较黄土坡面缓台、陡坎、切沟和塌陷微地形上乔木树种的树高、胸径和枯落物厚度等生长指标及树种组成结构.结果表明,(1)阴坡所有树种的生长指标与坡位指数呈显著正相关,与坡度指数呈显著负相关;阳坡所有树种的树高、枯落物厚度与坡度指数呈显著负相关;(2)同一树种在不同微地形上的生长差异显著,相对陡坎,缓台与切沟上树种的生长状况较好;(3)阴坡造林陡坎以榆树、缓台以山杏、切沟以刺槐为宜,缓台和切沟可混交小叶杨、杜梨等树种,阳坡造林缓台以刺槐、切沟以榆树、陡坎以山杏为宜.
The effects of microtopography on the trees growth were investigated for the purpose of providing base for afforestation site selection and preparation technology in near-natural vegetation restoration. A shady slope（0.12km2） and a sunny slope（0.06km2） were selected as the study area in Wuqi County, Shaanxi Province. There were different microtopography types in the two slopes. The height, diameter at breast height（DBH） and litter depth of natural forest and the species structure were measured and analyzed by correlation and variance analysis in the different microtopography types. The results revealed that ： （ 1 ） in shady slope, height, DBH and litter depth had significantly positive correlations with the slope position index and significantly negative correlations with the slope index;while in sunny slope, height and litter depth had significantly negative correlations with the slope index; （2） Conditions of same tree species in different microtopography types displayed the significant difference, especially Pyrus betulifolia and Populus hopeiensis ; the growth of tree species in platform and gully was better than that of in scarp ; （ 3 ） Ulmus pumila, Armeniaca sibirica, and Robinia pseudoacacia could be planted on scarp, platform and gully in shady slopes respectively, while mixing Pyrus betulifolia and Populus simonii should be planted on the platform and gully on shady slope; Robinia pseudoacacia, Ulmus pumila and Armeniaca sibirica were planted on platform, gully, and scarp in sunny slope respectively.