[1]雷斯越,赵文慧,杨亚辉,等.不同坡位植被生长状况与土壤养分空间分布特征[J].水土保持研究,2019,26(01):86-91,105.
　LEI Siyue,ZHAO Wenhui,YANG Yahui,et al.Spatial Distribution Characteristics of Soil Nutrients and Vegetation Growth Status in Different Slopes[J].Research of Soil and Water Conservation,2019,26(01):86-91,105.
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不同坡位植被生长状况与土壤养分空间分布特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年01期 页码: 86-91,105 栏目: 出版日期: 2019-02-28
Title:
Spatial Distribution Characteristics of Soil Nutrients and Vegetation Growth Status in Different Slopes
作者:
雷斯越1, 赵文慧1, 杨亚辉1, 吕渡1, 白云斌2, 何亮1, 郭晋伟1, 张晓萍1
1. 西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
2. 陕西省延安市吴起县吴起镇林业站, 陕西 吴起 717600
Author(s):
LEI Siyue1, ZHAO Wenhui1, YANG Yahui1, LYU Du1, BAI Yunbin2, HE Liang1, GUO Jinwei1, ZHANG Xiaoping1
1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Forestry Station in Wuqi Town, Wuqi County, Wuqi, Shaanxi 717600, China
关键词:
地形; 坡位; 植被群落; 土壤养分; 黄土高原
Keywords:
terrain; slope; vegetation community; soil nutrients; Loess Plateau
分类号:
S158.3
摘要:
地形和土壤是影响植被群落的重要因素，植被生长状况与土壤养分含量随地形而变化。以吴起县枣庄沟小流域为研究区，采用样方法对不同坡位草地植被群落进行了植被调查，采集0-20 cm的表层土壤测定土壤有机质、全氮、全磷含量，研究不同坡位上植被群落与土壤养分变化关系，以期了解黄土高原丘陵沟壑区地形对植被恢复的影响机制，为当地生态恢复提供科学依据与指导。结果表明：不同坡位上草地植被群落物种多样性、丰富度及地上生物量虽无显著差异，但各项指标均表现出坡下 > 坡中 > 坡上的趋势，这与土壤养分含量变化趋势相同。其中坡下位置各项土壤养分含量均为最大，植被生长状况最好；而沟坡位置土壤有机质含量、全氮含量、物种丰富度指数与地上生物量均为最低。植被生长状况与土壤养分在不同地形上变化趋势基本一致，具有一定相关性。
Abstract:
Topography and soil are important factors affecting vegetation communities, and vegetation growth and soil nutrient content varied with topography. Zaozhuanggou watershed of Wuqi County was selected as the research area, the quadrat method was used in vegetation community and the surface soil of 0-20 cm was collected to determine the contents of soil organic matter, total nitrogen and total phosphorus in different slopes. The relationship between the vegetation and soil nutrient changes on the different slopes was analyzed, in order to understand the hilly-gully loess plateau terrain effect on vegetation restoration mechanism and provide the scientific basis and guidance for the local ecosystem restoration. The results showed that there were no significant differences in species diversity, richness and aboveground biomass of grassland vegetation communities in different slopes, but all indexes decreased in the order:lower slope > middle slope > upper slope, it was the same as the changes in soil nutrients content. In lower slope, the soil nutrient contents are the largest, and the vegetation growth is best; however, the SOM, TD, Margalef and above-ground biomass are all the lowest in groove slope. The growth status of vegetation and soil nutrients in different slopes are basically the same, and there is a correlation between them.

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备注/Memo

收稿日期:2018-3-27;改回日期:2018-4-24。
基金项目:国家自然科学基金（41230852，41440012，41101265）；黄土高原土壤侵蚀与旱地农业国家重点实验室专项（A314021403-C2）
作者简介:雷斯越(1994-),女,陕西宝鸡市人,硕士研究生,研究方向为植被恢复水分效应分析。E-mail:Leisiyue1994@gmail.com
通讯作者:张晓萍(1971-),女,河南焦作市人,博士,研究员,主要从事区域水土流失规律和水土保持等研究。E-mail:zhangxp@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01