保水剂用量对矿区紫花苜蓿生长的影响

doi:10.16843/j.sswc.2018.04.016

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (940 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract [Background] The climate of mining areas in northern China is arid and rainless, and water is the main factor restricting the reconstruction of vegetation. Moreover, the ecological environment of mining area has been greatly destroyed during mining process, the soil erosion is aggravated, and the ecological restoration is more difficult. Medicago sativa is a common soil and water conservation plant in China, and super absorbent polymer (SAP) can effectively promote the restoration of vegetation and prevent soil erosion. Therefore, it is of great significance to study the effect of SAP on the growth of M. sativa in the arid mining area.[Methods] In order to obtain the optimal dosage of SAP in the planting of M. sativa in the arid mining area, pot culture method was used to grow M. sativa in the mining area soil, with 6 concentrations of SAP[0 (CK), 0.15% (A1), 0.30% (A2), 0.45% (A3), 0.60% (A4), and 0.90% (A5)]. During the growth period, the soil moisture content were measured with MPM-160B portable soil moisture meter, the net photosynthetic rate (P_n), transpiration rate (T_r), stomatal conductance (G_s), intercellular CO₂ concentration (C_i) were measured with plant photosynthetic system Li-6400P, the leaf water use efficiency (WUE) was calculated, the chlorophyll content was measured by spectrophotometry method and the survival time of plants was measured. After the experiment, the whole plant was harvested, the dry weight of aboveground parts and roots were weighed, and biomass and root shoot ratio were calculated. The soil was sampled and organic matter as well as nutrient content was measured.[Results] The growth of plants with SAP was better than the contrast, the survival time prolonged by 6.16%-35.05%, and the maximum appeared at A2 and A3. The application of SAP effectively improved the soil moisture and nutrient status, the soil moisture content increased with the increase of the concentration of SAP, the effect of A2, A3 and A4 treatment on soil nutrient improvement was better and the improvement of available nutrients were better than total nutrients. Compared with the contrast, the moisture content of soil increased 1.04%-8.78%, the total N, total P and total K increased by 13.40%-35.54%, 2.61%~18.93% and 8.53%-15.89%, and the available N, available P and available K increased by 5.88%-47.02%, 17.88%-101.73% and 12.5%-31.55%, respectively. The application of SAP improved the photosynthetic capacity of the plants, and the maximum value of each index appeared in the A2 treatment and decreased with the increase of the concentration of the SAP. P_n, T_r, G_s, C_i, and WUE increased by 8.94%-96.96%, 5.64%-61.12%, 14.17%-135.05%, 14.85%-49.71% and 1.08%-16.48%, respectively, the chlorophyll content increased by 9.48%-30.29%. The biomass increased by 17.01%-61.96%,the maximum one occurred at A2 treatment, and decreased with the increase of the concentration of SAP.[Conclusions] The implementation of SAP may increase soil moisture content and preserve soil nutrient, enhance photosynthesis efficiency and water use efficiency of M. sativa, reduce decomposition of chlorophyll, increase biomass and prolong survival time. Considering the improvement effect of SAP on each index, the concentration of 0.30%-0.45% is the optimal concentration for M. sativa planting on mining wasteland.

Key words： Medicago sativa mining soil plant growth super absorbent polymer

Received: 08 December 2017

PACS:

S482.9

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Yichao
	SUN Baoping
	ZHANG Jianfeng
	SONG Shuangshuang
	LI Zhiyong
	CHEN Chuan

Cite this article:

CHEN Yichao,SUN Baoping,ZHANG Jianfeng, et al. Effects of application rate of super absorbent polymers on the growth of Medicago sativa in mining area[J]. SSWC, 2018, 16(4): 124-131.

URL:

http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2018.04.016 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2018/V16/I4/124

[1]	张鸿龄,孙丽娜,孙铁珩,等. 矿山废弃地生态修复过程中基质改良与植被重建研究进展[J]. 生态学杂志, 2012, 31(2):460. ZHANG Hongling, SUN Lina, SUN Tieheng, et al. Substrate amelioration and vegetation reconstruction in ecological remediation of abandoned mines:Research advances.[J] Chinese Journal of Ecology, 2012, 31(2):460.
[2]	王俊,刘文兆,钟良平,等. 长期连续种植苜蓿草地地上部分生物量与土壤水分的空间差异性[J]. 草业学报, 2009, 18(4):41. WANG Jun, LIU Wenzhao, ZHONG Liangping, et al. Spatial variability of aboveground biomass and soil moisture in long-term continuous cropping Medicago sativa grassland[J]. Acta Prataculturae Sinica, 2009, 18(4):41.
[3]	穆军,李占斌,李鹏,等. 干热河谷水电站弃渣场植被恢复技术研究[J]. 应用基础与工程科学学报, 2010, 18(2):245. MU Jun, LI Zhanbing, LI Peng, et al. A study on vegetation restoration technology of abandoned dreg site of hydropower station in the dry-hot valley areas[J]. Journal of Basic Science and Engineering, 2010, 18(2):245.
[4]	KHADEM S A, GALAVI M, RAMRODI M, et al. Effect of animal manure and superabsorbent polymer on corn leaf relative water content, cell membrane stability and leaf chlorophyll content under dry condition.[J]. Australian Journal of Crop Science, 2010, 4(8):642.
[5]	张蕊,耿桂俊,白岗栓. 保水剂施用量对土壤水分和番茄生长的影响[J]. 中国水土保持科学, 2013, 11(2):108. ZHANG Rui, GENG Guijun, BAI Gangshuan. Effects of application rate of super absorbent polymers on soil moisture and Solanum lycopersicum growth[J]. Science of Soil and Water Conservation, 2013, 11(2):108.
[6]	李希,刘玉荣,郑袁明,等. 保水剂性能及其农用安全性评价研究进展[J]. 环境科学, 2014, 35(1):394. LI Xi, LIU Yurong, ZHENG Yuanming, et al. Characterization and soil environmental safety assessment of super absorbent polymers in agricultural application[J]. Environmental Science, 2014, 35(1):394.
[7]	CAO Yuanbo, WANG Baitian, GUO Hongyan, et al. The effect of super absorbent polymers on soil and water conservation on the terraces of the Loess Plateau[J]. Ecological Engineering, 2017, 102:270.
[8]	KARIMI A, NOSHADI M, AHMADZADEH M. Effects of super absorbent polymer (Igeta) on crop, soil water and irrigation interval[J]. Journal of Science & Technology of Agriculture & Natural Resources, 2009, 12(46):403.
[9]	杨永辉,吴普特,武继承,等. 复水前后冬小麦光合生理特征对保水剂用量的响应[J]. 农业机械学报, 2011, 42(7):116. YANG Yonghui, WU Pute, WU Jicheng, et al. Response of photosynthetic parameters of winter wheat before and after re-watering to different rates of water-retaining agent.[J]. Transactions of the Chinese Society for Agricultural Machinery, 2011, 42(7):116.
[10]	李杨,王百田. 高吸水性树脂对沙质土壤物理性质和玉米生长的影响[J]. 农业机械学报, 2012, 43(1):76. LI Yang, WANG Baitian. Influence of superabsorbent polymers on sandy soil physical properties and corn growth.[J]. Transactions of the Chinese Society for Agricultural Machinery, 2012, 43(1):76.
[11]	李倩,刘景辉,张磊,等. 适当保水剂施用和覆盖促进旱作马铃薯生长发育和产量提高[J]. 农业工程学报, 2013, 29(7):83. LI Qian, LIU Jinghui, ZHANG Lei, et al. Using water-retaining agent and mulch to improve growth and yield of potato under dry farming[J].Transactions of the Chinese Society of Agricultural Engineering, 2013, 29(7):83.
[12]	冉艳玲,王益权,张润霞,等. 保水剂对土壤持水特性的作用机理研究[J]. 干旱地区农业研究, 2015, 33(5):101. RAN Yanling, WANG Yiquan, ZHANG Runxia, et al. Research on the mechanism of super absorbent polymer to soil water-holding characteristic[J]. Agricultural Research in the Arid Areas, 2015, 33(5):101.
[13]	刘世亮,寇太记,介晓磊,等. 保水剂对玉米生长和土壤养分转化供应的影响研究[J]. 河南农业大学学报, 2005, (2):146. LIU Shiliang, KOU Taiji, JIE Xiaolei, et al. Studies on the effects of water-retaining agents on maize growth and soil nutrient transformation[J]. Journal of Henan Agricultural University, 2005, (2):146.
[14]	胡慧蓉,胡广琴,欧光龙,等. 肥料与保水剂对膏桐幼苗生长与土壤养分的影响[J]. 安徽农业科学, 2010, 38(28):15702. HU Huirong, HU Guangqin, OU Guanglong, et al. Effect of the use of fertilizer and hydrogel on Jatropha curcas L. seedling growth and soil nutrient[J]. Journal of Anhui Agri. Sci., 2010, 38(28):15702.
[15]	王尚义,石瑛,牛俊杰,等. 煤矸石山不同植被恢复模式对土壤养分的影响:以山西省河东矿区1号煤矸石山为例[J]. 地理学报,2013,68(3):372. WANG Shangyi, SHI Ying, NIU Junjie, et al. Effects of different vegetation restoration patterns on soil nutrients in coal gangue mountains:Taking the No. 1 Coal Gangue Mountain in the Hedong mining area of Shanxi as an example[J]. Acta Geographica Sinica, 2013, 68(3):372.
[16]	李杨. 保水剂与肥料及土壤的互作机理研究[D]. 北京:北京林业大学, 2012:112. LI Yang. Study on the interaction mechanism of SPA and fertilizer and soil[D]. Beijing:Beijing Forestry University, 2012:112.
[17]	LAWLOR D W, CORNIC G. Photosynthetic carbon assimilation and associated metabolism in relation to water deficits in higher plants[J]. Plant Cell & Environment, 2002, 25(2):275.
[18]	韩瑞宏,卢欣石,高桂娟,等. 紫花苜蓿(Medicago sativa)对干旱胁迫的光合生理响应[J]. 生态学报, 2007(12):5229. HAN Ruihong, LU Xinshi, GAO Guijuan, et al. Photosynthetic physiological response of alfalfa (Medicago sativa) to drought stress[J]. Acta Ecologica Sinica, 2007(12):5229.
[19]	杨玉珍,张云霞,彭方仁. 干旱胁迫对不同种源香椿苗木光合特性的影响[J]. 北京林业大学学报, 2011, 33(1):44. YANG Yuzhen, ZHANG Yunxia, PENG Fangren. Effects of drought stress on photosynthetic characteristics in Toona sinensis seedlings from different provenances[J]. Journal of Beijing Forestry University, 2011, 33(1):44.
[20]	樊良新,刘国彬,薛萐,等. CO2浓度倍增及干旱胁迫对紫花苜蓿光合生理特性的协同影响[J]. 草地学报, 2014, 22(1):85. FAN Liangxin, LIU Guobin, XUE Sha, et al. Synergistic effects of doubled CO2 concentration and drought stress on the photosynthetic characteristics of Medicago sativa[J]. Acta Agrestia Sinica, 2014, 22(1):85.
[21]	杨永辉,武继承,李宗军,等. 保水剂对冬小麦生长及水分利用效率的影响[J]. 华北农学报, 2011, 26(3):173. YANG Yonghui, WU Jicheng, LI Zongjun, et al. Effects of water-retaining agent on growth and water use efficiency of winter-wheat[J]. Acta Agriculturae Boreali-Sinica, 2011, 26(3):173.
[22]	林武星,黄雍容,朱炜,等. 干旱胁迫对台湾栾树幼苗生长和生理生化指标的影响[J]. 中国水土保持科学,2014, 12(5):52. LIN Wuxing, HUANG Yongrong, ZHU Wei, et al. Effects of drought stress on the growth and physiological and biochemical characteristics of Koelreuteria elegans seedlings[J]. Science of Soil and Water Conservation, 2014, 12(5):52.
[23]	赵陟峰,王冬梅,赵廷宁. 保水剂对煤矸石基质上高羊茅生长及营养吸收的影响[J]. 生态学报, 2013, 33(16):5101. ZHAO Zhifeng, WANG Dongmei, ZHAO Tingning. The effect of super absorbent polymer on the growth and nutrition absorption of Festuca arundinacea L. on an improved gangue matrix[J]. Acta Ecologica Sinica, 2013, 33(16):5101.