ZHANG Rui,ZHANG Jing-bo,CAO Liang-tu.Effect of Arid Region Land Use and Soil Modified and Vegetation Restoration on Sandy Nutrient Recovery[J].Research of Soil and Water Conservation,2010,17(04):153-157.
干旱区土地利用和土壤改良及植被恢复方式对沙地养分的恢复效应
- Title:
- Effect of Arid Region Land Use and Soil Modified and Vegetation Restoration on Sandy Nutrient Recovery
- 分类号:
- F301.24;S153.6
- 摘要:
- 为研究干旱区土地利用、土壤改良和植被恢复方式对沙地养分的恢复效果，在乌兰布和沙漠东北缘开展试验研究。研究表明，土地利用方式和人为合理的经营活动对沙漠化土地肥力的恢复和提高有较大影响，在农业耕作制度中，其改土培肥效应以草田轮作最高，农作物套种次之，农作物单种最低；在荒漠沙地上种植农作物较果树更有利于保护土壤生态环境；在荒漠沙地上造林，应以防护林为主，不宜营造大规模杨树速生丰产林；在沙地上营造灌木薪炭林，可起到改良贫瘠沙地的功效；在沙地上种植沙打旺、草木樨和苜蓿均可有效的提高沙化土地肥力，以沙打旺效果最好，草木樨次之，苜蓿最差；在围栏封沙育草中，不同植物群落类型对沙地土壤改良效果有所不同，多植物群落优于单一植物群落。土壤氮磷比由高到低依次排序为白刺＋沙蒿＞沙蒿＋沙竹＞沙蒿＞沙竹＞小花棘豆＋沙蒿＞白刺＞小花棘豆，土壤氮磷比的高低主要取决于氮素水平。
- Abstract:
- To study the arid land use,soil modified and vegetation restoration on sandy nutrient effect,the research is carried out in the Ulan Buh Desert northeastern margin.The results showed that land use and human activities on desertification and rational management to restore and improve land fertility,have greater influence in the agricultural farming systems,its improving soil fertility and crop rotation of grass as the highest,followed by crop intercropping,crop monoculture minimum.In the desert sand,crops have more ability than fruit to protect soil ecological environment; afforestation in the desert sand,protection forest should be mainly,not to create large-scale poplar forest; in the sand to create a fuelwood,can play an improved effectiveness of barren sand; planted in the Astragalus adsurgens Pall.,Melilotus suaveolrns Ledeb.and Medicago sativa L.can effectively improve the sandy soil fertility,Astragalus adsurgens Pall.was the best,Melilotus suaveolrns Ledeb.,Medicago sativa L.was the worst; grass in the fenced sand sports,different plant communities on sandy soil improvement effect of different,plant communities better than the single.Order of nitrogen and phosphorus ratio were Nitraria tangutorum Bobr.+ Artemisia ordosica Krasch.>Artemisia ordosica Krasch.+Psammochloa villosa>Artemisia ordosica Krasch>Psammochloa villosa>Oxytropis glabr+Artemisia ordosica Krasch.>Nitraria tangutorum Bobr.>Oxytropis glabr,the level of soil nitrogen and phosphorus ratio main depends on the nitrogen level.
参考文献/References:
[1] 王涛.西部大开发中的沙漠化研究及其灾害防治[J].中国沙漠,2000,20(4):345-348.
[2] 赵文智,程国栋.人类土地利用的主要生态后果及其缓解对策[J].中国沙漠,2000,20(4)369-374.
[3] 杨朝飞.中国土地退化及其防治对策[J].中国环境科学,1997,17(2):108-112.
[4] 赵其国,吴志东.继往开来,迎接21世纪对土壤科学的挑战[J].土壤,1999,31(5):225-230.
[5] 郝玉光,刘芳,张伟华,等.乌兰布和沙区人工绿洲土壤养分动态研究[J].干旱区资源与环境,2009,23(7):176-181.
[6] 赵其国.土壤与环境问题国际研究概况及其发展趋势[J].土壤,1998,30(6):281-290.
[7] 张金波,宋长春.土地利用方式对土壤碳库影响的敏感性评价指标[J].生态环境,2003,12(4):500-504.
[8] 王庆锁,张玉发,苏加楷,等.苜蓿－作物轮作研究[J].生态农业研究,1999,7(3):35-38.
[9] 杨晓晖,王葆芳,江泽平.乌兰布和沙漠东北缘三种豆科绿肥植物生物量和养分含量及其对土壤肥力的影响[J].生态学杂志,2005,24(10):1134-1138.
[10] 谢建昌,周建民.我国土壤钾素研究和钾肥使用的进展[J].土壤,1999,31(5):244-254.
[11] Smith V H.Effects of nitrogen:phosphorus supply ratios on nitrogen fixation in agricultural and pastoral ecosystems[J].Biogeochemistry,1992,18(1):19-35.
[12] 邬畏,何兴东,张宁,等.油蒿群落演替中的植物密度对土壤氮/磷比的响应[J].土壤学报,2009,46(3):472-479.
相似文献/References:
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备注/Memo
收稿日期:2010-3-16;
基金项目:国家科技支撑专题（2006BAD26B08010）
作者简介:张瑞（1973- ），男，内蒙古人，工程师，从事荒漠化防治方面研究。E-mail：nmzhangjb@126.com