晋北京津风沙源治理二期工程生态效益分析
Ecological Benefit of Beijing-Tianjin Sand Source Control Phase Ⅱ Project in Northern Shanxi Province
茹豪 1李青辉 1孙向宁1
作者信息
- 1. 山西省林业和草原科学研究院,山西 太原 030012;山西太原城市生态系统定位观测研究站,山西 太原 030012
- 折叠
摘要
为了分析晋北京津风沙源二期工程实施以来所产生的生态效益,选取山西北部沙土区二期工程的油松纯林、油松—樟子松混交林为研究对象,对林地植物多样性和土壤理化性质进行分析研究.结果表明,由于林地郁闭度较低,阳光直射强烈,先锋植物为喜光、耐旱型草本植物,灌木稀少;油松—樟子松混交林植物多样性、土壤理化性质略优于油松纯林;植物多样性的增加有助于改善土壤理化性质,草本植物对土壤表层的改良作用明显.
Abstract
In order to analyze the ecological benefits since the implementation of the Beijing-Tianjin Sand Source Control Phase Ⅱ Project in north Shanxi Province,Pinus tabulaeformis pure forest and Pinus tabu-laeformis and Pinus sylvestris mixed forest in this region were selected as the research objects,and the plant diversity and soil physical and chemical properties of forest land were studied and analyzed.The results showed that due to the low canopy density and strong direct sunlight,the pioneer plants were light-loving and drought-tolerant herbaceous plants,and the shrubs were scarce;plant diversity and soil physical and chemical properties of P.tabulaeformis and P.sylvestris mixed forest were slightly better than those of P.tabulaeformis pure forest;the increase of plant diversity contributed to to improve the physical and chem-ical properties of soil,and the improvement effect of herbaceous plants on soil surface was obvious.
关键词
生态效益/植物多样性/土壤理化性质/晋北京津风沙源治理二期工程Key words
ecological benefits/plant diversity/soil physical and chemical properties/Beijing-Tianjin Sand Source Control Phase Ⅱ Project引用本文复制引用
基金项目
山西省回国留学人员科研资助项目(2020-163)
山西省林业重点研发计划专项项目()
山西太原城市生态系统定位观测研究站运行项目()
出版年
2024
NETL
NSTL
万方数据