乌鲁木齐市3种典型绿地系统生态效益评价

袁蕾

摘要 [目的]为合理利用乌鲁木齐植物配置，提高园林绿化生态效益提供科学依据。[方法]针对乌鲁木齐市公园绿地、附属绿地、生产绿地3种典型绿地绿化植物的比叶重、光合量、固氮释氧量、蒸腾量，对不同绿地系统进行了生态效益评价。[结果]公园绿地绿化植物的平均比叶重和日均光合速率大于附属绿地和生产绿地，附属绿地典型绿化植物的平均比叶重高于生产绿地，但生产绿地典型绿化植物的日均光合速率高于附属绿地。3种典型绿地绿化植物的日释氧量表现为公园绿地>生产绿地>附属绿地;日固碳量表现为公园绿地>生产绿地>附属绿地;平均蒸腾耗水量表现为生产绿地>附属绿地>公园绿地。[结论]乌鲁木齐3种典型绿地系统的生态效益以公园绿地最高，其次是生产绿地、附属绿地。

关键词 乌鲁木齐;绿地;生态效益评价;园林绿化植物

中图分类号 TU-985.12  文献标识码 A

文章编号 0517-6611（2021）13-0124-03

doi：10.3969/j.issn.0517-6611.2021.13.030

开放科学（资源服务）标识码（OSID）：

Ecological Benefit Evaluation of Three Typical Green Space Systems in Urumqi

YUAN Lei

（Urumqi LI Yu shan Park， Urumqi， Xinjiang 830011）

Abstract [Objective]To provide scientific basis for rational utilization of Urumqi plant configuration and improvement of ecological benefits of landscape greening. [Method]According to the specific leaf weight， photosynthetic rate， nitrogen fixation， oxygen release and transpiration rate of three typical green space in Urumqi， the ecological benefits of different green space systems were evaluated. [Reslut]The average specific leaf weight and daily average photosynthetic rate of green plants in the park were higher than those in the attached green space and production green space. The daily oxygen release of three typical green plants was as follows：park green space > production green space > attached green space; daily carbon fixation capacity was shown as park green space > production green space > affiliated green space; average transpiration water consumption rate was shown as production green space > affiliated green space > park green space. [Conclusion]The ecological benefits of the 3 typical green spaces in Urumqi were the highest in park green space，followed by production green space and subsidiary green space.

Key words Urumqi;Green space;Ecological benefit evaluation;Landscaping plant

城市绿地作为城市复合生态系统重要组成部分，在改善城市环境质量、维持生态系统稳定、促进人体健康发展等方面有着巨大作用，被称为城市环境 “绿色卫士”[1]。城市绿地生态效益是一个城市绿地系统的结构和功能的真实反映[2]。城市绿地生态效益在利用生态系统自我调节能力与生态系统之间起着一定的补偿作用，能够提高物种再生能力，对人类赖以生存、生产和生活的自然环境和生态系统的稳定性有所维持和改善，从而获得环境整体性效益[3]。在乌鲁木齐城市化水平提高……