半干旱区两种草原类型植物体内草酸钙研究

doi:10.11733/j.issn.1007-0435.2018.06.019

草地学报 ›› 2018, Vol. 26 ›› Issue (6): 1421-1427.DOI: 10.11733/j.issn.1007-0435.2018.06.019

半干旱区两种草原类型植物体内草酸钙研究

李梦琦¹, 何兴东¹, 杨祥祥¹, 丁新峰¹, 赵月丹¹, 高玉葆¹, 尤万学², 余殿², 蔡莉²

1. 南开大学生命科学学院, 天津 300071;
2. 宁夏哈巴湖国家级自然保护区管理局, 宁夏 751501

收稿日期:2018-05-17 修回日期:2018-09-24 出版日期:2018-12-15 发布日期:2019-01-28
通讯作者: 何兴东
作者简介:李梦琦(1993-),女,河北保定人,硕士研究生,主要从事植被恢复与植物修复研究,E-mail:skylmq@mail.nankai.edu.cn
基金资助:
国家重点研发计划项目（2016YFC0500706）资助

Study on Calcium Oxalate in Plants of Two Types of Steppe Zones in Semi-arid Area

LI Meng-qi¹, HE Xing-dong¹, YANG Xiang-xiang¹, DING Xin-feng¹, ZHAO Yue-dan¹, GAO Yu-bao¹, YOU Wan-xue², YU Dian², CAI Li²

1. College of Life Sciences, Nankai University, Tianjin 300071, China;
2. Ningxia Habahu National Nature Reserve Administration, Ningxia 751501, China

Received:2018-05-17 Revised:2018-09-24 Online:2018-12-15 Published:2019-01-28

摘要/Abstract

摘要： 本文利用连续组分法测定了半干旱区两种草原类型植物体内的草酸钙含量，在宁夏盐池北部的宁夏哈巴湖国家级自然保护区（植被为荒漠化草原）采集了91种植物，在内蒙古正蓝旗中北部（植被为典型草原）采集了77种植物。结果表明，在宁夏哈巴湖，草酸钙含量最高的物种是猪毛菜（Salsola collina）、沙蓬（Agriophyllum squarrosum）、尖头叶藜（Chenopodium acuminatum）、草原石头花（Gypsophila davurica）和虫实（Corispermum declinatum），内蒙古正蓝旗植物草酸钙含量最高的物种是灰绿藜（Chenopodium glaucum）、猪毛菜（Salsola collina）、碱地肤（Kochia scoparia var.sieversiana）；两地禾本科草本草酸钙含量均显著低于非禾本科草本，宁夏哈巴湖自然保护区和内蒙古正蓝旗禾本科草本的草酸钙含量比非禾本科草本分别低56.37%和45.29%；C₃植物体内的草酸钙含量显著低于C₄植物。可见，植物体内草酸钙是植物长期适应进化的结果。

关键词: 半干旱区, 荒漠化草原, 典型草原, 禾本科草本, 草酸钙

Abstract: In this study,we collected 91 species of plants from the Ningxia Habahu National Nature Reserve in the north of Yanchi county of Ningxia Hui Autonomous Region (the desertified steppe in semi-arid area) and 77 species plants from the middle north of Zhenglan banner of Inner Mongolia Autonomous Region (the typical steppe in semi-arid region);and determined the plant calcium oxalate of both regions using the sequential fractionation procedures. The results showed that the species with the highest calcium oxalate contents were Salsola collina, Agriophyllum squarrosum,Chenopodium acuminatum,Gypsophila davurica,and Corispermum deslinatum in the Ningxia Habahu National Nature Reserve and Chenopodium glaucum,Salsola collina and Kochia scoparia var. sieversiana in Zhenglan Qi County. Statistics showed that the calcium oxalate contents of grass plants were significantly lower than those of herb plants in both regions,the calcium oxalate content in grass plants was 56.37% and 45.29% lower than those in herb plants in the Ningxia Habahu National Nature Reserve and Zhenglan Qi County,respectively. Moreover,the plants with higher calcium oxalate content had worse palatability by beasts. Statistics showed that the calcium oxalate contents of C₃ plants were significantly lower than those of C₄ plants of both sites. Thus,differences of calcium oxalate content in plants are long-term results of their adaptation to the environment.

Key words: Semi-arid area, Desertified steppe, Typical steppe, Grass, Calcium oxalate

中图分类号:

S945

李梦琦, 何兴东, 杨祥祥, 丁新峰, 赵月丹, 高玉葆, 尤万学, 余殿, 蔡莉. 半干旱区两种草原类型植物体内草酸钙研究[J]. 草地学报, 2018, 26(6): 1421-1427.

LI Meng-qi, HE Xing-dong, YANG Xiang-xiang, DING Xin-feng, ZHAO Yue-dan, GAO Yu-bao, YOU Wan-xue, YU Dian, CAI Li. Study on Calcium Oxalate in Plants of Two Types of Steppe Zones in Semi-arid Area[J]. Acta Agrestia Sinica, 2018, 26(6): 1421-1427.

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半干旱区两种草原类型植物体内草酸钙研究

Study on Calcium Oxalate in Plants of Two Types of Steppe Zones in Semi-arid Area

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