摘要
以张家口市坝上高原康保牧场为研究区,采用标桩法及专家目测法,通过对比退耕还林草生态建设初期（2007—2009年,即工程实施5~6a后）与生态建设近10a后（2011—2013年）不同土地利用类型的土壤风蚀厚度,可知：坝上高原生态建设工程实施10余年后较生态建设初期土壤风蚀量明显减少,植被盖度、高度增大,且不同土地利用类型地块土壤风蚀量由大到小依次为退耕撂荒杂类草地〉退耕还灌草地〉未退化自然草地;在半干旱偏干地区,人工植被建设应以灌草结合的带状间作模式为主;天然草地应利用大自然的自我修复能力,因地制宜,实行封围禁牧、休牧、轮牧等方式.中度、重度沙化土地的生态恢复是一个漫长的过程,任重而道远.
The Kangbao pasture of Zhangjiakou city is selected as the experimental area, using the standard stake method and expert visual method,through comparing the soil erosion thickness of different land use types of the early ecological construction with which after more than ten years, the results indi cate：The wind erosion was significantly reduced than ecological construction of the initial amount,the cov- erage and height of vegetation was increasing, and the amount of annual soil wind erosion from high to low is reclaimed pasture land〉reclaimed shrud land〉natural grassland; natural grassland should take the main method of natural recovery, taking actions according to the different extent of prairie deterioration, such as forbid pasturing,fallow pasturing or rotation pasturing; in the semi-arid area,it＇s better to use the way of shrub and grass combination to build the man-made vegetation; and the reconstruction of ecology of the moderate, severe ecological desertification land has a long way to go.
出处
《河北师范大学学报（自然科学版）》
CAS
2015年第3期268-272,共5页
Journal of Hebei Normal University：Natural Science
基金
国家自然科学基金(41071068)
关键词
生态建设工程
土壤风蚀厚度
标桩法
康保牧场
ecological construction
soil wind-erosion depth
standard stake method
Kangbao pasture
