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中国沙漠  2017, Vol. 37 Issue (4): 678-688    DOI: 10.7522/j.issn.1000-694X.2016.00163
生物与土壤     
生态水文阈值在中国沙区人工植被生态系统管理中的意义
张定海1,2, 李新荣2, 张鹏2
1. 甘肃农业大学 理学院 数量生态研究所, 甘肃 兰州 730070;
2. 中国科学院西北生态环境资源研究院 沙坡头沙漠研究试验站, 甘肃 兰州 730000
Significance of Eco-hydrological Threshold in Artificial Vegetation Ecosystem Management in China Desert Area
Zhang Dinghai1,2, Li Xinrong2, Zhang Peng2
1. Center for Quantitative Biology, College of Science, Gansu Agricultural University, Lanzhou 730070, China;
2. Shapotou Desert Research and Experimental Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
 全文: PDF(3904 KB)  
摘要: 中国北方风沙区是全球沙漠化发展和生态退化最为严重的地区之一。利用植被固沙是遏制沙化土地扩张和生态重建与恢复的主要途径,但人工植被的稳定维持是可持续性风沙治理所长期面临的挑战。作为人工植被生态系统管理的依据,对生态水文阈值的认识及界定具有重要的理论和实践意义。本文以固沙植被中人工种植的灌木和乔木(仅限东部沙区)的盖度与深层土壤水分含量互馈互调作用的长期变化为依据,基于对中国不同气候带沙区典型人工植被系统生态和水文过程的模拟,通过建立生态水文模型初步界定了不同沙区适宜于人工植被生态系统管理的生态水文阈值,对现有沙区固沙植被的生态系统管理和未来风沙区植被建设具有一定的借鉴意义。
关键词: 中国北方风沙区人工固沙植被水分平衡固沙植被稳定性生态水文阈值生态重建    
Abstract: The desert area in northern China,under wind-blown sand hazards and with desertification development and ecological degradation,is one of the most serious areas in the word.Using plant sand-fixation is the main approach to contain the expansion of sandy land and to recover and rebuild the ecological environment.However,the stability maintenance of artificial vegetation is a challenge of sustainable management of sand hazards.As the basis for artificial vegetation ecosystem management,how to understand and define the eco-hydrological threshold has important theoretical and practical significance.We built an eco-hydrological model to describe the interaction effect between the deep soil moisture and the coverage of artificial sand-binding shrub or trees (for only eastern desert regions).We used the model to simulate the eco-hydrological process in the typically artificial sand-binding vegetation ecosystem of different climate zones of China desert.Based on these results,we defined the appropriate eco-hydrological threshold of artificial vegetation ecosystem management in different sandy areas.It has a certain reference value to the ecosystem management of existing sand-binding vegetation and future vegetation construction in desert areas.
Key words: desert area in northern China    artificial sand-binding vegetation    soil water balance    stability of sand-binding vegetation    eco-hydrological threshold    ecological reconstruction
收稿日期: 2016-09-30 出版日期: 2017-07-20
:  Q148  
基金资助: 国家自然科学基金项目(41661022);国家重点基础研究发展计划项目(2013CB429900)
作者简介: 张定海(1981-),男,甘肃民乐人,博士,主要研究方向为干旱区生态水文学。E-mail:zhangdh@gsau.edu.cn
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引用本文:

张定海, 李新荣, 张鹏. 生态水文阈值在中国沙区人工植被生态系统管理中的意义[J]. 中国沙漠, 2017, 37(4): 678-688.

Zhang Dinghai, Li Xinrong, Zhang Peng. Significance of Eco-hydrological Threshold in Artificial Vegetation Ecosystem Management in China Desert Area. JOURNAL OF DESERT RESEARCH, 2017, 37(4): 678-688.

链接本文:

http://www.desert.ac.cn/CN/10.7522/j.issn.1000-694X.2016.00163        http://www.desert.ac.cn/CN/Y2017/V37/I4/678

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