LI Yan,WEI Wei,QIU Yang,et al.Effects of Different Vegetation Restoration Types on Soil Nutrient Properties in the Hill and Gully Region of Loess Plateau[J].Research of Soil and Water Conservation,2014,21(06):115-121,128.
黄土丘陵小流域植被恢复驱动下的土壤养分特征
- Title:
- Effects of Different Vegetation Restoration Types on Soil Nutrient Properties in the Hill and Gully Region of Loess Plateau
- Keywords:
- hill and gully region of loess; vegetation restoration; vegetation restoration measures; plant community; soil nutrient
- 分类号:
- S158.3
- 摘要:
- 为定量揭示植被恢复对土壤养分的影响，本文借助土壤养分指数（SNI）评价方法，对典型黄土丘陵区小流域不同恢复方式下典型植物群落的土壤养分进行定量化分析和综合评价。结果表明：不同恢复方式的土壤SNI值大小依次为：退耕还林（0.814） > 退耕还灌（0.659） > 弃耕或退耕还草（0.364） > 对照农地（0.220）；不同植物群落土壤SNI值大小依次为：柠条群落（0.777） > 小叶杨群落（0.658） > 刺槐群落（0.545） > 杏群落（0.510） > 草群落（0.425） > 茵陈蒿群落（0.310） > 沙棘群落（0.271） > 白羊草群落（0.257） > 硬质早熟禾群落（0.249） > 大豆群落（0.227） > 铁杆蒿群落（0.224） > 达乌里胡枝子群落（0.103）。研究表明，生态退耕后不同恢复方式对土壤养分均有明显的改善作用。退耕还灌的三种植物群落土壤养分指数差异显著，退耕还林、弃耕或退耕还草内部各群落间土壤养分指数差异不显著，除铁杆蒿和达乌里胡枝子群落外，其他植物群落的土壤养分指数均高于农田作物大豆群落。
- Abstract:
- Soil nutrient properties in the Loess Plateau are largely influenced by re-vegetation. By calculating the soil nutrient index (SNI), this study evaluated the quantitative influence of typical plant communities of different re-vegetation types on soil nutrient properties in the hill and gully region of loess. Results of this study showed that the order of SNI among different vegetation types was trees(0.814) > brush(0.659) > grassland(0.364) > crap(0.220). Calculated SNI of different plant communities was in order of Caragana korshinski(0.777) > Populus simonii(0.658) > Robinia pseudoacacia(0.545) > Armeniaca(0.510) > Koeleria cristata (0.425) > Artemisia capillaris(0.310) > Hippophae rhamnoides (0.271) > Bothriochloa ischaemum(0.257) > Poa sphondylodes(0.249) > Glycine max(0.227) > Artemisia sacrorum (0.224) > Lespedeza daurica (0.103). The results indicated that different vegetation restoration measures can significantly improve soil nutrient properties. Significant difference in SNI was found among different brush communities. SNI of plant communty was found to be obviously higher than that in Glycine max crop community except for Artemisia sacrorum and Lespedeza daurica.
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备注/Memo
收稿日期:2014-02-26;改回日期:2014-03-23。
基金项目:国家自然科学基金资助项目（30970503，41171152）；国家自然科学基金重大课题资助项目（41390462）
作者简介:栗妍(1987-),女,河北邯郸人,硕士研究生在读,主要从事植物地理与景观生态研究。E-mail:hdffly2007@126.com
通讯作者:邱扬(1969-),男,四川仁寿人,博士,副教授,主要从事景观生态、干扰生态与植物生态、土地侵蚀与水土保持研究。E-mail:qiuyang69@263.net