PDF Download

[1]NONG Gan,LU Pei,WANG Lin-hua,et al.Study on Root Distribution of Winter Wheat on Slope Farmland on the Loess Plateau[J].Research of Soil and Water Conservation,2013,20(05):92-98.

Copy

Study on Root Distribution of Winter Wheat on Slope Farmland on the Loess Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 92-98 Column: Public date: 2013-10-28

Title:: Study on Root Distribution of Winter Wheat on Slope Farmland on the Loess Plateau

Author(s):: NONG Gan, LU Pei, WANG Lin-hua, WU Fa-qi; College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China

Keywords:: root distribution; winter wheat; soil erosion; slope farmland

CLC:: Q944.54

DOI:: -

Abstract:: Winter wheat is the most important cover on slope farmland. In order to understand the root distribution of winter wheat at whole stages on slope cropland, the winter wheat root system was investigated on slope farmland. The root weight density, root length density, and diameter of root were measured on different slope farmland and different level of soil on slope farmland. The objective of the study is to confirm the distribution of winter wheat root system on slope land. The results showed that the root weight density, length density and diameter of root have main relationship with the soil depths and the slope on farmland. The the maximum value of root weight density was observed on 0—5 cm, and root weight density decreased as the soil layers getting deep. The weight system density also increased as the growth stages and would be up to the maximum value at maturity. The weight density also was the maximum on the slope of 10°. The root length density was the maximum value at 0—5 cm, decreased as the layer getting deep. The length density increased with the slope getting larger. The maximum value was on the slope of 15°. The average root diameter decreased as the soil layers. The maximum value was on the jointing stage, and declined with the growth stages. The maximum value was on the slope of 10°. The conclusion showed that soil layers had positive linear correlation with the root weight density, length density and diameter. And the slope and growing stage had the linear correlation with the root weight density, length density and diameter.

References:: [1] 毛妍婷,郑毅,李永梅,等.狗尾草根系固土拉力的原位测定[J].土壤通报,2009,40(3):580-584.
[2] Morganr P C. Soil Erosion and Conservation, 3rd edition[M]. UK:Blackwell Science Ltd, Oxford, 2005.
[3] Gyssels G, Poesen J. The importance of plant root characteristics in controlling concentrated flow erosion rates[J]. Earth Surface Processes and Land-forms,2003,28(4):371-384.
[4] 唐克丽.中国水土保持[M].北京:科学出版社,2004.
[5] 李勇,朱显谟,田积莹. 黄土高原植物根系提高土壤抗冲性的有效性[J].科学通报,1991(12):935-938.
[6] 傅金民.大豆根系生长及其与产量的关系[J].大豆科学,1987,6(4):262-270.
[7] 汪有科,吴钦孝,韩冰,等.森林水土保持功能评价[J].水土保持研究,1994,1(3):24-30.
[8] 姚文艺,汤立群.水力侵蚀产沙过程及模拟[M].郑州:黄河水利出版社,2001.
[9] 马波.大豆对坡面土壤侵蚀的影响研究[D].陕西杨凌:西北农林科技大学,2008.
[10] 吴发启,赵晓光,刘秉正,等.耕作活动对坡耕地径流及产沙的影响[J].西北林学院学报,1998,13(2):20-25.
[11] 雷廷武,刘汗,潘英华,等.坡地土壤降雨入渗性能的径流-入流-产流测量方法与模型[J].中国科学D辑:地球科学,2005,35(12):1180-1186.
[12] 王进鑫,王迪海,刘广全.刺槐和侧柏人工林有效根系密度分布规律研究[J].西北植物学报,2004,24(12):2208-2214.

Similar References:

Memo

Last Update: 1900-01-01