短期封育对伊犁绢蒿荒漠草地土壤氮及其粒径组成的影响

doi:10.11733/j.issn.1007-0435.2022.01.017

草地学报 ›› 2022, Vol. 30 ›› Issue (1): 134-143.DOI: 10.11733/j.issn.1007-0435.2022.01.017

短期封育对伊犁绢蒿荒漠草地土壤氮及其粒径组成的影响

哈里·阿力腾别克¹, 崔雨萱¹, 刘慧霞¹, 董乙强^1,3,4, 孙强², 崔荷婷¹, 钱茹雪¹, 孙宗玖^1,3,4

1. 新疆农业大学草业学院，新疆乌鲁木齐 830052;
2. 新疆维吾尔自治区草原总站，新疆乌鲁木齐 830049;
3. 新疆草地资源与生态自治区重点实验室，新疆乌鲁木齐 830052;
4. 西部干旱荒漠区草地资源与生态教育部重点实验室，新疆乌鲁木齐 830052

收稿日期:2021-05-17 修回日期:2021-07-27 出版日期:2022-01-15 发布日期:2022-01-27
通讯作者: 孙强, E-mail: 549136952@qq.com;孙宗玖, E-mail: nmszj@21cn.com
作者简介:哈里·阿力腾别克(1996-)，男，哈萨克族，新疆阿勒泰人，硕士研究生，主要从事草地资源与生态研究，E-mail: 1596012920@qq.com
基金资助:
新疆维吾尔自治区自然科学基金(2020D01A60)；国家自然科学基金(32060408, 31260574)；新疆维吾尔自治区草原总站项目(XJCYZZ2020003)资助

Effects of Short-term Grazing Exclusion on Soil Nitrogen and Particle Size Composition of Seriphidium transiliense Desert Grassland

HALI-Alitengbieke¹, CUI Yu-xuan¹, LIU Hui-xia¹, DONG Yi-qiang^1,3,4, SUN Qiang², CUI He-ting¹, QIAN Ru-xue¹, SUN Zong-jiu^1,3,4

1. College of Grassland Science, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China;
2. Grassland station of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 830049, China.;
3. Xingjiang Key Laboratory of Grassland Resources and Ecology, Urumqi, Xinjiang 830052, China;
4. Key Laboratory of Grassland Resources and Ecology of Western Arid Region, Ministry of Education, Urumqi, Xinjiang 830052, China

Received:2021-05-17 Revised:2021-07-27 Online:2022-01-15 Published:2022-01-27

摘要/Abstract

摘要： 为探讨短期封育对荒漠草地土壤特征的影响，以天山北坡玛纳斯县、呼图壁县、奇台县伊犁绢蒿(Seriphidium transiliense)荒漠为对象，采用常规方法，测定了封育内外草地土壤全氮、碱解氮及其粒径组成，结果表明：封育后伊犁绢蒿荒漠草地0~50 cm土层全氮含量范围为1.16~1.82 g·kg^-1，差异不显著。土壤碱解氮为20.58~62.35 mg·kg^-1，和不封育相比，封育后玛纳斯样地土壤碱解氮显著降低14.62%(P < 0.01)，奇台样地显著增加16.76%(P < 0.05)。封育增加了0~50 cm土层黏粉粒含量，减少了砂粒含量，且封育后呼图壁、奇台样地土壤砂粒含量整体分别显著降低6.09%，14.86%，土壤黏粉粒含量分别显著增加10.63%，15.36%，而封育后玛纳斯样地土壤砂粒、黏粒含量差异不显著，仅土壤粉粒含量显著增加5.57%~7.23%(P < 0.05)。土壤全氮与土壤砂粒呈负相关(P < 0.05)，与黏粒呈正相关(P < 0.05)，而土壤碱解氮仅与土壤黏粒呈正相关(P < 0.05)。总之，短期封育后伊犁绢蒿荒漠土壤粒径朝细颗粒化转变，土壤全氮变化不显著，而土壤碱解氮因区域差异而有所不同。

关键词: 短期封育, 伊犁绢蒿荒漠, 粒径组成, 土壤氮含量, 天山北坡

Abstract: In order to investigate the effects of short-term grazing exclusion on soil characteristics of desert grassland, a pair experiment design was used to determine the soil total nitrogen, alkali-hydrolytic nitrogen and particle size composition of Seriphidium transiliense desert grassland in Manasi, Hutubi and Qitai counties on the Northern Slope of Tianshan Mountains. The results showed that the total nitrogen content in 0~50 cm soil layer was not significantly changed and ranged from 1.16 to 1.82 g·kg^-1, and the soil alkali-hydrolyzated nitrogen content was ranged from 20.58 to 62.35 mg·kg^-1. Compared with the control, it was significantly decreased by 14.62% in Manasi sample plot and increased by 16.76% in Qitai sample plot after grazing exclusion. However, the increase in Hutubi plot was not significant. Grazing exclusion increased the content of clay silt in 0~50 cm soil layer and reduced the content of sand. After grazing exclusion, the content of sand in Hutube and Qitai samples decreased by 6.09% and 14.86%, respectively, and the content of clay silt increased by 10.63% and 15.36%, respectively.However, soil silt content in Manas plot increased by 5.57%~7.23%. Soil total nitrogen content was negatively correlated with soil sand content and positively correlated with soil clay content, while soil alkali-hydrolyzable nitrogen content was only positively correlated with soil clay content. In general, after the short-term grazing exclusion, the soil particle size of Seriphidium transiliense desert grassland changed to fine granules, and soil total nitrogen did not improve significantly. However, soil alkali-hydrolyzed nitrogen needed to be treated differently due to regional differences. Therefore, continued grazing exclusion might be beneficial to the recovery of soil nutrients.

Key words: Grazing exclusion, Seriphidium transiliense desert, Particle size composition, Soil total nitrogen content, Northern slope of the Tianshan mountains

中图分类号:

S812.4

哈里·阿力腾别克, 崔雨萱, 刘慧霞, 董乙强, 孙强, 崔荷婷, 钱茹雪, 孙宗玖. 短期封育对伊犁绢蒿荒漠草地土壤氮及其粒径组成的影响[J]. 草地学报, 2022, 30(1): 134-143.

HALI-Alitengbieke, CUI Yu-xuan, LIU Hui-xia, DONG Yi-qiang, SUN Qiang, CUI He-ting, QIAN Ru-xue, SUN Zong-jiu. Effects of Short-term Grazing Exclusion on Soil Nitrogen and Particle Size Composition of Seriphidium transiliense Desert Grassland[J]. Acta Agrestia Sinica, 2022, 30(1): 134-143.

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短期封育对伊犁绢蒿荒漠草地土壤氮及其粒径组成的影响

Effects of Short-term Grazing Exclusion on Soil Nitrogen and Particle Size Composition of Seriphidium transiliense Desert Grassland

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