[1]钱洲,俞元春,俞小鹏,等.毛乌素沙地飞播造林植被恢复过程土壤酶活性的变化[J].水土保持研究,2014,21(06):95-100.
　QIAN Zhou,YU Yuan-chun,YU Xiao-peng,et al.Changes of Soil Enzyme Activities in Mu Us Sandy Land with Aerial Seeding Afforestation[J].Research of Soil and Water Conservation,2014,21(06):95-100.
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毛乌素沙地飞播造林植被恢复过程土壤酶活性的变化

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 21 期数: 2014年06期 页码: 95-100 栏目: 出版日期: 2014-12-28
Title:
Changes of Soil Enzyme Activities in Mu Us Sandy Land with Aerial Seeding Afforestation
作者:
钱洲1,2, 俞元春1, 俞小鹏1, 高捍东1, 吕荣3, 张文英4
1. 南京林业大学 森林资源与环境学院, 南京 210037;
2. 南京市水土保持管理中心, 南京 210008;
3. 鄂尔多斯市林业局, 内蒙古 鄂尔多斯 017000;
4. 包头市林业局林业工作站, 内蒙古 包头 014030
Author(s):
QIAN Zhou1,2, YU Yuan-chun1, YU Xiao-peng1, GAO Han-dong1, Lü Rong3, ZHANG Wen-ying4
1. College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China;
2. Soil and Water Conservation Management Center of Nanjing, Nanjing 210008, China;
3. Forestry Bureau of Ordos, Ordos, Inner Mongolia 017000, China;
4. Forestry Workstation of Baotou, Baotou, Inner Mongolia 014030, China
关键词:
毛乌素沙地; 飞播造林; 植被恢复; 土壤养分; 土壤酶活性
Keywords:
Mu Us sandy land; aerial seeding; vegetation restoration; soil nutrient; soil enzyme activity
分类号:
S156
摘要:
以内蒙古自治区毛乌素沙地飞播造林地为对象，研究了不同植被恢复年限样地土壤酶活性的变化。结果表明：经过17 a的植被恢复，土壤表层（0—10 cm）脲酶、蔗糖酶和磷酸酶显著增加，土壤过氧化氢酶活性在植被恢复初期上升趋势明显；土壤脲酶、蔗糖酶和磷酸酶活性与土壤养分之间有一定的正相关性，而这种相关性在土壤表层（0—10 cm）中要强于中下层（10—40 cm）；土壤表层（0—10 cm）土壤脲酶、蔗糖酶和磷酸酶三种水解酶之间呈极显著相关（p < 0.01）。表明毛乌素沙地飞播造林植被恢复过程中土壤脲酶、蔗糖酶和磷酸酶活性的增强和土壤养分的改善相互促进，土壤酶活性能在一定程度上能反映沙地植被恢复过程中土壤肥力水平，沙地表层土壤中氮素的转化、多糖的转化和有机磷的转化之间关系密切并且相互影响。
Abstract:
The soil enzyme activities in different vegetation restoration periods by aerial seeding afforestation in Mu Us sandy land of Inner Mongolia Autonomous Region were studied. The results revealed that soil urease, sucrase and phosphatase activities increased remarkably after 17 years of revegetation, and soil catalase activity increased at the early stage of vegetation restoration. At the same time, soil urease, sucrase and phosphatase enzyme activities showed stronger correlations with soil nutrients, while this correlation in the surface soil (0—10 cm) is stronger than in the lower layer (10—40 cm). In addition, there was a highly significant correlation among soil urease, soil invertase and soil phosphatase activities (p < 0.01) of surface soil (0—10 cm). These indicated that in the process of vegetation restoration, soil urease, invertase, phosphatase activities and soil nutrient promoted each other due to afforestation in Mu Us Sand land by aerial seeding. This result showed soil enzyme activity could reflect soil nutrient in the process of vegetation restoration. Indeed, there was a close relationship between the transformation of nitrogen, polysaccharide and organic phosphorus in the surface soil.

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备注/Memo

收稿日期:2013-12-03;改回日期:2014-01-27。
基金项目:国家林业局“948”引进项目（2008-4-22）；内蒙古自治区林业厅重点科研项目（2010-01）；江苏高校优势学科建设工程资助项目（PAPD）
作者简介:钱洲(1987-),男,江苏江阴人,助理工程师,硕士,从事水土保持研究。E-mail:qianchao112233@163.com
通讯作者:俞元春(1961-),男,江苏南京人,教授,博士生导师,从事森林土壤研究。E-mail:ycyu@njfu.com.cn

更新日期/Last Update: 1900-01-01