1. 新疆大学生态与环境学院
2. 新疆绿洲生态教育部重点实验室
3. 新疆精河温带荒漠生态系统教育部野外科学观测研究站
4. 自然资源部荒漠-绿洲生态监测与修复工程技术创新中心
5. 河南建筑职业技术学院建筑系
纸质出版:2023
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[1]王娟,刘俊杰,刘超,等.短期氮添加对高寒草地植物高度和生产力的影响[J].新疆大学学报(自然科学版)(中英文),2023,40(02):242-249+256.
[1]王娟,刘俊杰,刘超,等.短期氮添加对高寒草地植物高度和生产力的影响[J].新疆大学学报(自然科学版)(中英文),2023,40(02):242-249+256. DOI: 10.13568/j.cnki.651094.651316.2022.08.17.0001.
DOI:10.13568/j.cnki.651094.651316.2022.08.17.0001.
研究不同氮添加梯度和频次下草地生产力、植物高度、水分含量和干鲜比的变化趋势,利用样方调查法调查巴音布鲁克草原代表性物种,分析高寒草地常见植物高度、生产力和干鲜比比值.结果表明:该地区整体植物群落高度变化不显著,蔷薇科(Rosaceae)植物高度受氮添加梯度和频次的影响较大,禾本科(Poaceae)植物高度在两种氮添加频次下影响显著.莓叶委陵菜(Potentilla fragarioides)、冰草(Agropyron cristatum)、羊茅(Festuca ovina)植物高度在两种氮添加频次下差异显著.不同氮添加梯度和频次对植物地上生产力影响显著,随氮添加梯度的提升植物地上生产力呈现出增加趋势,禾本科植物生产力受氮添加因素的影响显著,蔷薇科和豆科(Fabaceae)植物生产力变化不大.巴音布鲁克草地植物的含水量介于35.10%~45.87%,干鲜比介于54.13%~64.90%.
This paper investigates the trends of grassland productivity
plant height
moisture content
and dry-to-fresh ratio under different N addition gradients and frequencies
and analyzes the common plant height
productivity
and dry-to-fresh ratio of alpine grasslands using a sample survey method to investigate representative species in Bayinbuluke grassland. The overall plant community height in the region did not vary significantly. The plant height of Rosaceae was more influenced by the gradient and frequency of N addition. Poaceae plant height was significantly affected by both N addition frequencies. Plant height of Potentilla fragarioides
Agropyron cristatum
and Festuca ovina changed significantly between the two N addition frequencies. The effect of different N addition gradients and frequencies on plant above-ground productivity was significant. Plant above-ground productivity showed an increasing trend with an increasing N addition gradient. Gramineae productivity was significantly affected by N addition
while Rosaceae and Fabaceae productivity did not change much. The moisture content of Bayinbuluke grassland ranged from 35.10% to 45.87% and the dry-to-fresh ratio ranged from 54.13% to 64.90%.
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