干旱地区农业研究2025，Vol.43Issue(5)：272-279,8.DOI:10.7606/j.issn.1000-7601.2025.05.27
黑土@PAM保水剂对青藏高原"黑土滩"青稞生长和草原固沙性能的影响
Effects of black soil-@PAM water-retaining agent on the growth of highland barley and sand-fixing performance of grassland in"Black Soil Beach"of the Qinghai-Tibet Plateau
摘要
Abstract
In order to find suitable water-retaining agents for the growth of highland barley or the Qinghai-Tibet Plateau and effectively control the degradation of the"black soil beach"grassland on its eastern margin,a black soil-based polyacrylamide water-retaining agent(BC@PAM)was prepared using black soil(BC),acrylamide(AM),N,N'-methylene bisacrylamide(MBA),and ammonium persulfate(APS).The BC@PAM had the water absorption rate of 414.3％and the water retention rate of 383.8％.A three-factor and three-level orthogonal test was designed to select the best synthesis conditions of BC@PAM.The microstructure of BC@PAM was characterized by FT-IR and SEM.The repeated water absorption performance,salt resistance,pH responsiveness,and sand-fixing performance of BC@PAM were evaluated.The effects of BC@PAM on the activity of PPO of highland barley and soil water retention under drought stress were analyzed.The results showed that the water retention rate of BC@PAM was as high as 338.5％after 6 times of repeated water absorption,and it was suitable for soil with the pH val-ue of 6.0～9.0.The moisture of the soil with BC@PAM decreased from 40.3％to 34.1％after 35 days,the PPO activity in barley increased from 2.23 mg·g-1 to 2.31 mg·g-1,and leaf browning was less frequent.After the ap-plication of BC@PAM,the wind erosion modulus of the soil planted with thoreau was significantly reduced,and it indicated that the soil had better sand-fixing performance.关键词
保水剂/合成工艺/固沙性能/青稞/青藏高原Key words
water-retaining agent/synthetic process/sand-fixing performance/highland barley/Qinghai-Tibet Plateau分类
畜牧业引用本文复制引用
李榕,马哲,丁宇儒,杨馥键,刘国正,马健琦..黑土@PAM保水剂对青藏高原"黑土滩"青稞生长和草原固沙性能的影响[J].干旱地区农业研究,2025,43(5):272-279,8.基金项目
甘肃省青年科技基金(25JRRP001) （25JRRP001）
甘肃省高等教育教学改革研究重点项目(GJJGA134) （GJJGA134）
甘肃省高等学校创新基金(2021B-302) （2021B-302）
2024年甘肃民族师范学院校长科研基金(2024XZCX-19) （2024XZCX-19）
2024年甘肃民族师范学院教学成果培育项目(NO.17) （NO.17）
