[1]李少华,王学全*,包岩峰,等. 高寒沙区绿洲边缘典型人工灌木林开发利用[J].西北林学院学报,2016,31(2):149-153.[doi:10.3969/j.issn.1001-7461.2016.02.26]
　LI Shao-hua,WANG Xue-quan*,BAO Yan-feng,et al. On Utilization of Typical Shrub Plantations in the Oasis Border of Alpine Sandy Area[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2016,31(2):149-153.[doi:10.3969/j.issn.1001-7461.2016.02.26]
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 高寒沙区绿洲边缘典型人工灌木林开发利用()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第31卷
期数:
2016年第2期
页码:
149-153
栏目:
出版日期:
2016-03-31

文章信息/Info

Title:
 On Utilization of Typical Shrub Plantations in the Oasis Border of Alpine Sandy Area
文章编号:
1001-7461(2016)02-0149-05
作者:
 李少华; 王学全*; 包岩峰; 尹书乐
 （中国林业科学研究院 荒漠化研究所，北京 100093）
Author(s):
 LI Shao-hua; WANG Xue-quan*; BAO Yan-feng; YIN Shu-le
 (Institute of Desertification Studies,Chinese Academy of Forestry，Beijing 100093，China)
关键词:
 ; 高寒沙区; 绿洲边缘; 柠条; 土壤改良; 开发利用
Keywords:
 ; alpine sandy land;  oasis border;  Caragana korshinshii;  soil improvement;  exploitation
分类号:
S724
DOI:
10.3969/j.issn.1001-7461.2016.02.26
文献标志码:
A
摘要:
 以沙珠玉治沙试验林场内人工植被恢复的长期定位监测试验为基础，将不同林龄（3、12、21、30、42 a和51 a）的人工柠条（Caragana korshinskii）林地作为研究对象，把农田和沙丘作为对照，测定了土壤理化性质和柠条营养指标的变化情况，探讨了人工柠条林对沙地的恢复改良效果、高寒沙地恢复需要的时间和柠条的可开发利用潜力。结果表明：随着柠条林龄的增加，土壤质地得到显著改善，土壤有机质的含量显著增加（p<0.05），与农田0～5 cm层土壤理化性状相比，30年生柠条林地的表层土壤已恢复至农田水平，土壤有机质随着土层深度增加，改良效果存在时间上的滞后性；30～42年生柠条林的粗蛋白总量达到最高，结合沙地土壤恢复状况，建议在超过30年生的柠条林区实施平茬措施，进行适度开发利用，提高其生态经济价值，以促进高寒沙区绿洲的可持续发展。
Abstract:
 Taking artificial Caragana korshinskii plantations with different ages (3,12,21,30,42 and 51-year-old) as research objects,cultivation land and sand dune as control,a long term experiment was conducted in Shazhuyu Forest Farm,which is located in the oasis border of alpine sandy area in Qinghai.Soil physico-chemical properties and nutrient indicators of C.korshinskii as well as their dynamics were determined to examine the effects of vegetation restoration of C.korshinskii and its utilization potential.The results show that :with the increase of vegetation restoration time,the soil texture was greatly improved,soil organic matters increased significantly (p<0.05).Compared with farmland (0-5 cm layer),soil physico-chemical properties of 30-year-old plantation restored to the level of cultivation land.Soil organic matter increased with soil depth,and a time lag in the soil improvement was observed;The content of total crude protein reached the highest level in C.korshinskii plants with the ages of 30- to 42-year-old.Considering the recovery situations of sandy soil,it was suggested that C.korshinskii plants over 30-year-old could be cut off for further utilization to increase the economic benefit of ecological restoration,and to promote the sustainable development of the region.

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备注/Memo

备注/Memo:
 收稿日期：2015-06-26修回日期：2015-08-26
基金项目：国家“十二五”科技支撑课题(2012BAD16B0105)。
作者简介：李少华，男，在读硕士，研究方向：水土保持与荒漠化防治。E-mail:2227401357@qq.com
*通信作者：王学全，男，博士，研究员，研究方向：干旱区水文水资源及荒漠化防治。E-mail:wxq@caf.ac.cn
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