ZHANG Hua-ming,WANG Zhao-yan,YU Rong-gang,et al.Study on Soil Physical and Chemical Properties under Different Inter-cropping for Orchards on Hilly Region in Northern Jiangxi Province[J].Research of Soil and Water Conservation,2010,17(04):258-261,268.
赣北丘陵区果园不同套种模式对退化红壤理化性质的影响
- Title:
- Study on Soil Physical and Chemical Properties under Different Inter-cropping for Orchards on Hilly Region in Northern Jiangxi Province
- Keywords:
- physical and chemical propertie of red soil; orchards; inter-cropping system; hilly region in northern Jiangxi province
- 分类号:
- S153;S66-33
- 摘要:
- 为了探讨丘陵区果园水土保持措施与土壤理化性质改良关系，通过5 a的野外定位观测试验，研究了5种不同果园套种模式对退化红壤理化性质的影响。研究结果表明：果园不同套种模式对土壤理化性质的改善效果不同，百喜草全园覆盖和狗牙根全园覆盖提高土壤含水量效果最好，全园套种狗牙根模式改良土壤容重、毛管持水量、有机质、全氮、全磷、全钾和速效钾效果最好。套种百喜草和狗牙根果园模式改良果园土壤全氮效果优于套种农作物模式。套种农作物模式改良果园土壤全磷效果、土壤碱解氮能力都明显好于套种不同牧草模式。套种百喜草和套种农作物提高果园土壤速效磷含量，而套种狗牙根与阔叶雀稗草则略为降低了土壤速效磷含量。与果园顺坡耕作套种相比，横坡套种具有更好的保持土壤养分的作用，适宜进一步推广。
- Abstract:
- In order to study the relationship between measure ments of soil erosion controling and improvement of soil physical and chemical properties,effects of five different intercropping patterns on physical and chemical properties of degenerate red soil were studied through five years’ field observation.The results showed that amelioration effects of soil properties were different depending on different intercropping patterns,i.e.amelioration effects of soil properties were different when the grass and tillage in the patterns were different.Intercropping with Paspalum notatum flÜgge and Cynodon dactylon overall coverage had the best effect on conserving water.Intercropping with Cynodon dactylon also had the best effect on improving soil bulk density,soil moisture,organic matter,soil total nutrients and soil available potassium.The functions of intercropping Paspalum notatum flÜgge and Cynodon dactylon were obviously better than that of intercropping crop in improving soil total nitrogen.The function of intercropping crop was better than that of intercropping different grass in improving soil total phosphorus and available nitrogen.Intercropping Bahia grass and crop could increase soil available phosphorus,and intercropping Cynodon dactylon & Paspalum wettsteinÜ hackle could decrease soil available phosphorus.The effects of horizontal intercropping on conserving soil nutrient were better than those of down slope farming.Therefore,the horizontal intercropping should be adopted in hilly region.
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备注/Memo
收稿日期:2010-5-1;
基金项目:水利公益性行业科研专项经费项目（200901047，200901049）
作者简介:张华明（1978- ），男，江西井冈山人，工程师，主要从事水土保持研究。E-mail：10145037@qq.com
通讯作者:杨洁（1958- ），女，博士，教授级高工，长期从事水土保持生态环境和植物分子生物学研究。E-mail：zljyj@126.com