[1]聂晓刚,梁博,喻武*,等. 藏中半干旱地区不同土地利用类型土壤抗蚀性研究[J].西北林学院学报,2018,33(2):43-47.[doi:10.3969/j.issn.1001-7461.2018.02.07]
　NIE Xiao-gang,LIANG Bo,YU Wu*,et al. Soil Anti-erodibility of Different Land-use Modes in Semiarid Region of Central Tibet[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(2):43-47.[doi:10.3969/j.issn.1001-7461.2018.02.07]
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 藏中半干旱地区不同土地利用类型土壤抗蚀性研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第2期
页码:
43-47
栏目:
出版日期:
2018-03-31

文章信息/Info

Title:
 Soil Anti-erodibility of Different Land-use Modes in Semiarid Region of Central Tibet
文章编号:
1001-7461(2018)02-0043-05
作者:
 聂晓刚1; 2; 梁博1; 2; 喻武1; 2*; 万丹1; 2
 （1.西藏农牧学院 资源与环境学院，西藏 林芝 860000；2.西藏农牧学院 高寒水土保持研究中心，西藏 林芝 860000）
Author(s):
 NIE Xiao-gang1; 2; LIANG Bo1; 2; YU Wu1; 2*; WAN Dan1; 2
 (1.College of Resource and Environment,Tibet Agricultural and Animal Husbandry College,Linzhi,Tibet 860000,China; 2.Research Center of Soil and Water Conservation in Alpine-Cold Region,Tibet Agricultural and Animal Husbandry College,Linzhi,Tibet 860000,China)
关键词:
 ; 藏中半干旱区; 不同土地利用方式; 土壤抗蚀性; 主成分分析
Keywords:
 ; semiarid region of central Tibet;  land-use modes;  soil anti-erodibility;  principal component analysis
分类号:
S714.7
DOI:
10.3969/j.issn.1001-7461.2018.02.07
文献标志码:
A
摘要:
 藏中半干旱地区不同土地利用类型土壤抗蚀性研究对土地利用模式优化和资源整合有着重要意义。通过主成分分析，对藏中半干旱地区农耕地、人工林地、撂荒地和灌丛地等4种不同土地利用类型土壤抗蚀性进行研究。结果表明，12个用于表征研究区土壤抗蚀性的指标可优化为＞0.25 mm非水稳性团聚体、团聚体平均重量直径、土壤容重、砾石含量、吸湿水含量、有机质含量6个指标；通过建立综合评价模型，最终得出4种不同土地利用类型土壤抗蚀性强弱顺序，依次为人工林地（3.55）＞农耕地（2.45）＞撂荒地（1.78）＞灌丛地（0.05）。但就整体而言，研究区土壤抗蚀性仍处于相对较低水平，建议该区在土壤改良过程中，加强人工林的抚育管理和农耕地的科学施肥，增强其水土保持功能。
Abstract:
 It is significant for land-use optimization and resource integration to study the soil anti-erodibility of different land-use modes in semiarid region in central Tibet.In this paper,the soil anti-erodibility was investigated in the cultivated land,artificial forest land,grassland and shrub land based on principal component analysis.The results showed that all the 12 anti-erodibility indices could be optimized to 6 indices,i.e non-water stable aggregates with the size> 0.25 mm,average weight diameter of aggregates,soil bulk density,gravel content,moisture content and organic matter content.By the establishment of a comprehensive evaluation model,it was found the anti-erodibility level of those four land-use modes were as follows: artificial forest land (3.55)＞cultivated land (2.45)＞grassland (1.78)＞shrub land (0.05).As a whole,however,the soil anti-erodibility in study area was at a relatively low level.It is necessary to increase farmland shelterbelts and plantations during strengthen environmental awareness of farmers and herdsmen to lead a scientific fertilizing after soil testing,to improve soil structure in the study area and to enhance the soil and water conservation.

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备注/Memo

备注/Memo:
 收稿日期：2017-06-04修回日期：2017-09-04
基金项目：国家自然科学基金项目(41461063)；西藏自治区科技厅自然基金项目（2015ZR-13-36）。
作者简介：聂晓刚，男，在读硕士，研究方向：高寒区土壤抗蚀性评价。E-mail：765726793@qq.com
*通信作者：喻武，男，副教授，硕士生导师，研究方向：高寒区土壤侵蚀机理及其恢复。E-mail：yuwu4270@126.com
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