Mixing trees and crops increases land and water use efficiencies in a semi-arid area

被引:67
作者
Bai, Wei [1 ,2 ]
Sun, Zhanxiang [2 ]
Zheng, Jiaming [2 ]
Du, Guijuan [2 ]
Feng, Liangshan [2 ]
Cai, Qian [2 ]
Yang, Ning [2 ]
Feng, Chen [2 ]
Zhang, Zhe [2 ]
Evers, Jochem B. [4 ]
van der Werf, Wopke [4 ]
Zhang, Lizhen [3 ]
机构
[1] Shenyang Agr Univ, Coll Land & Environm, Shenyang 110161, Liaoning, Peoples R China
[2] Liaoning Acad Agr Sci, Tillage & Cultivat Res Inst, Shenyang 110161, Liaoning, Peoples R China
[3] China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
[4] Wageningen Univ, Ctr Crop Syst Anal CSA, Droevendaalsesteeg 1, NL-6708 PB Wageningen, Netherlands
基金
美国国家科学基金会;
关键词
Agroforestry; Intercropping; Land equivalent ratio; Water equivalent ratio; Water use efficiency; Beta growth equation; STRIP INTERCROPPING SYSTEMS; LIGHT INTERCEPTION; SOIL EVAPORATION; AGROFORESTRY SYSTEMS; ROOT DISTRIBUTION; YIELD COMPONENTS; RESOURCE CAPTURE; EQUIVALENT RATIO; WHEAT-MAIZE; GROWTH;
D O I
10.1016/j.agwat.2016.10.007
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Sustainable increases in food production in semi-arid regions require efficient use of land and water resources. Agroforestry is the practice of combining tree and crop cultivation on a land parcel and may increase both land productivity and water use efficiency. We conducted two years of field experiments in the semi-arid Khorchin region in Liaoning, China, to determine to which extent land and water use efficiencies were affected by mixing apricot (Prunus armeniaca) trees with annual crops: peanut (Arachis hypogaea), millet (Pennisetum italica) or sweet potato (Ipomoea batatas). Apricot yields were not significantly affected in the agroforestry, compared to the sole stand, but yields of the annual crops were lower when grown under trees than as sole crops, with relative crop yields of 0.46 for millet and 0.35 for both peanut and sweet potato in the agroforestry. Crop rows near tree rows had lower yields than crop rows further away from trees. Land equivalent ratios (LER) were 1.34, 1.44 and 1.33 in mixed systems with peanut, millet and sweet potato, respectively. Mixing crops and trees did not increase water extraction from the top 100 (2012) or 200 cm (2013) soil profile comparing to sole tree. Thus, with increased crop output and similar apricot yield, the water use efficiency was improved in the mixed system. Water use efficiency of the mixed system was characterized with the water equivalent ratio (WER). This index, analogous to LER, expresses the relative yield total per unit of water in the mixed system compared to the sole crops. WERs were 1.39, 1.51, and 1.34 in agroforestry systems with peanut, millet and sweet potato, respectively. We conclude that apricot-based agroforestry improves the productivity and water use efficiency of rain-fed agriculture in this semi-arid area, especially when a drought adapted crop such as millet is used. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:281 / 290
页数:10
相关论文
共 59 条
[1]   Water balance of apricot trees (Prunus armeniaca L. cv. Bulida) under drip irrigation [J].
Abrisqueta, JM ;
Ruiz, A ;
Franco, JA .
AGRICULTURAL WATER MANAGEMENT, 2001, 50 (03) :211-227
[2]  
Allen R. G., 1998, 56 FAO VIAL TERM CAR
[3]   Increasing water use and water use efficiency in dryland wheat [J].
Angus, JF ;
van Herwaarden, AF .
AGRONOMY JOURNAL, 2001, 93 (02) :290-298
[4]  
Bai Wei Bai Wei, 2014, Acta Agronomica Sinica, V40, P181
[5]   Growth response of crops to soil microbial communities from conventional monocropping and tree-based intercropping systems [J].
Bainard, L. D. ;
Koch, A. M. ;
Gordon, A. M. ;
Klironomos, J. N. .
PLANT AND SOIL, 2013, 363 (1-2) :345-356
[6]   Comparing common methods for assessing understory light availability in shaded-perennial agroforestry systems [J].
Bellow, JG ;
Nair, PKR .
AGRICULTURAL AND FOREST METEOROLOGY, 2003, 114 (3-4) :197-211
[7]   Improving Winter Wheat Grain Yield and Water Use Efficiency through Fertilization and Mulch in the Loess Plateau [J].
Chen, Yanlong ;
Liu, Ting ;
Tian, Xiaohong ;
Wang, Xiaofeng ;
Chen, Huilin ;
Li, Meng ;
Wang, Shaoxia ;
Wang, Zhaohui .
AGRONOMY JOURNAL, 2015, 107 (06) :2059-2068
[8]   EFFECTS OF FERTILIZER, VARIETY AND LOCATION ON BARLEY PRODUCTION UNDER RAIN-FED CONDITIONS IN NORTHERN SYRIA .2. SOIL-WATER DYNAMICS AND CROP WATER-USE [J].
COOPER, PJM ;
GREGORY, PJ ;
KEATINGE, JDH ;
BROWN, SC .
FIELD CROPS RESEARCH, 1987, 16 (01) :67-84
[9]   Productivity Advantage of Crop-Perennial Pasture Intercropping in Southeastern Australia [J].
Craig, Penny Roberts ;
Coventry, David ;
Edwards, Janelle Hocking .
AGRONOMY JOURNAL, 2013, 105 (06) :1588-1596
[10]   Assessing Light Competition for Cereal Production in Temperate Agroforestry Systems using Experimentation and Crop Modelling [J].
Dufour, L. ;
Metay, A. ;
Talbot, G. ;
Dupraz, C. .
JOURNAL OF AGRONOMY AND CROP SCIENCE, 2013, 199 (03) :217-227