JI Yu-hong,NING Hu-sen,WANG Rang-hui,et al.Relationship between Artificial Vegetation and Soil Physiochemical Properties in Arid Zone[J].Research of Soil and Water Conservation,2010,17(06):20-25,30.
干旱区土壤理化性质与人工植被性状的关系——以新疆和田墨玉生态产业区为例
- Title:
- Relationship between Artificial Vegetation and Soil Physiochemical Properties in Arid Zone
- Keywords:
- eco-industrial area; artificial vegetation; soil physiochemical property; coefficient of variation; survival rate
- 分类号:
- S153;S714.2
- 摘要:
- 植树造林是应对气候变化，减缓CO2排放的重要生物措施。在西部干旱区和田墨玉县的生态产业区开展野外调查，对区内土壤理化性质和人工植被生长状况进行研究。结果表明：样地内土壤容重值1.15~1.55g/cm3，变异系数为9.75%；土壤的相对含水率最大仅为3.89%；有机质、全氮、全磷、全钾、速效氮、速效磷和速效钾的平均值分别是1.205g/kg、0.081g/kg、0.553g/kg、20.762g/kg、9.705mg/kg、0.960mg/kg和129.727mg/kg，变异系数分别为22.149%、35.615%、6.590%、6.187%、108.505%、36.843%和53.894%，说明研究区内的土壤水分状况较差，普遍缺少氮和磷，钾含量较丰富但特定区域亦有缺少。大多数人工植被的先锋树种存活率大于60%，处于繁殖期。人工植被存活率较高，种群属于增长型种群，需要及时引水灌溉和施肥。此外，小沙枣+新疆杨混交林和小沙枣+榆树混交林配置方式值得大力推广
- Abstract:
- Afforestation is an important biological measure to address climate change and slowdown carbon dioxide emission. In this paper, field survey was carried out in Moyu’s Eco-Industrial Area in the west arid zone, and the soil physiochemical properties and the artificial vegetation conditions were studied. The results showed that soil bulk density ranged from 1.15 g/cm3 to 1.55 g/cm3 and the coefficient of variation (CV) value is 9.75%, the maximum relative water content is only 3.89%, the averages of organic matter, total nitrogen, total phosphorus, total potassium, available nitrogen, available phosphorus and available potassium are 1.205 g/kg, 0.081 g/kg, 0.553 g/kg, 20.762 g/kg, 9.705 mg/kg, 0.960 mg/kg and 129.727 mg/kg, respectively. Their CV values are 22.149%, 35.615%, 6.590%, 6.187%, 108.505%, 36.843% and 53.894%, respectively. As a conclusion, it shows that the soil characters are low moisture content, deficient nitrogen and phosphorus, relatively sufficient potash but still lack in specific regions. Besides, most of artificial vegetation is in the breeding period, and survival rates are more than 60%. These pioneer tree species of artificial vegetation have high survival rates. All of populations are increasing perimeter-class, needing timely irrigation and fertilization. There are two mixed configurations worth promoting, one is Elaeagnus oxcarpa Schlecht.+P.bolleana, the other is Elaeagnus oxcarpa Schlecht.+Ulmus pumila Linn.
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备注/Memo
收稿日期:2010-6-3
基金项目:国家科技支撑项目（2006BAD26B0902）；中国科学院知识创新重大项目（KSCX-YW-09）；国家重点基础研究发展规划（2006CB705809）
作者简介:季宇虹（1986- ），女，江苏南京人，硕士研究生，主要从事景观生态学及地理信息系统的研究。E-mail：jiyuhong22@sina.com
通讯作者:王让会（1963- ），男，陕西人，博士，教授，博士生导师，主要从事地理学、生态学领域的研究工作。E-mail：rhwang@nuist.edu.cn