Please wait a minute...
Journal of Arid Land
Journal of Arid Land
Research Articles     
Effects of soil moisture on cotton root length density and yield under drip irrigation with plastic mulch in Aksu Oasis farmland
ChengYi ZHAO, YingYu YAN, Yilihamu Yimamu, JuYan LI, ZhiMin ZHAO, LaoSheng WU
1 Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2 General Station of Water and Soil Conversation and Eco-environmental Monitoring of Xinjiang, Urumqi 830000, China; 3 Graduate University of Chinese Academy of Sciences, Beijing 100039, China; 4 Department of Soil and Environmental Sciences, University of California, Riverside, CA 92521, USA
Download:   PDF(249KB)
Export: BibTeX | EndNote (RIS)      

Abstract  Effects of soil moisture on cotton root length density (total root length per unit soil volume) and yield under drip irrigation with plastic mulch were studied through field experiments. The results indicate that spatial distributions of root length density of cotton under various water treatments were basically similar. Horizontally, both root length densities of cotton in wide and narrow rows were similar, and higher than that between mulches. Vertically, root length density of cotton decreased with increasing soil depth. The distribution of root length density is different under different irrigation treatments. In conditions of over-irrigation, the root length density of cotton between mulches would increase. However, it would decrease in both the wide rows and narrow rows. The mean root length density of cotton increased with increasing irrigation water. Water stress caused the root length density to increase in lower soil layers. There is a significant correlation between root length density and yields of cotton at the flower-boll and wadding stages. The regression between irrigation amount and yield of cotton can be expressed as y = -0.0026x2+18.015x-24845 (R2 = 0.959). It showed that the irrigation volume of 3,464.4?m3/hm2 led to optimal root length density. The yield of cotton was 6,360?.8?kg/hm2 under that amount of irrigation.

Key words： hydraulic architecture      leaf water potential      transpiration      hydraulic resistance      stomatal conductance      hydraulic limitation     
Received: 03 August 2010      Published: 07 December 2010
Corresponding Authors:
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
ChengYi ZHAO
YingYu YAN
Yilihamu Yimamu
JuYan LI
ZhiMin ZHAO
LaoSheng WU
Cite this article:

ChengYi ZHAO, YingYu YAN, Yilihamu Yimamu, JuYan LI, ZhiMin ZHAO, LaoSheng WU. Effects of soil moisture on cotton root length density and yield under drip irrigation with plastic mulch in Aksu Oasis farmland. Journal of Arid Land, 2010, 2(4): 243-249.

URL:

http://jal.xjegi.com/10.3724/SP.J.1227.2010.00243     OR     http://jal.xjegi.com/Y2010/V2/I4/243

[1] YANG Jianhua, LI Yaqian, ZHOU Lei, ZHANG Zhenqing, ZHOU Hongkui, WU Jianjun. Effects of temperature and precipitation on drought trends in Xinjiang, China[J]. Journal of Arid Land, 2024, 16(8): 1098-1117.
[2] Khouloud ZAGOUB, Khouloud KRICHEN, Mohamed CHAIEB, Lobna F MNIF. Morphological and physiological responses to drought stress of carob trees in Mediterranean ecosystems[J]. Journal of Arid Land, 2023, 15(5): 562-577.
[3] LI Hongfang, WANG Jian, LIU Hu, MIAO Henglu, LIU Jianfeng. Responses of vegetation yield to precipitation and reference evapotranspiration in a desert steppe in Inner Mongolia, China[J]. Journal of Arid Land, 2023, 15(4): 477-490.
[4] Faraz GORGIN PAVEH, Hadi RAMEZANI ETEDALI, Brian COLLINS. Evaluation of CRU TS, GPCC, AgMERRA, and AgCFSR meteorological datasets for estimating climate and crop variables: A case study of maize in Qazvin Province, Iran[J]. Journal of Arid Land, 2022, 14(12): 1361-1376.
[5] Hushiar HAMARASH, Rahel HAMAD, Azad RASUL. Meteorological drought in semi-arid regions: A case study of Iran[J]. Journal of Arid Land, 2022, 14(11): 1212-1233.
[6] Brian COLLINS, Hadi RAMEZANI ETEDALI, Ameneh TAVAKOL, Abbas KAVIANI. Spatiotemporal variations of evapotranspiration and reference crop water requirement over 1957-2016 in Iran based on CRU TS gridded dataset[J]. Journal of Arid Land, 2021, 13(8): 858-878.
[7] Nirmal M DAHAL, XIONG Donghong, Nilhari NEUPANE, Belayneh YIGEZ, ZHANG Baojun, YUAN Yong, Saroj KOIRALA, LIU Lin, FANG Yiping. Spatiotemporal analysis of drought variability based on the standardized precipitation evapotranspiration index in the Koshi River Basin, Nepal[J]. Journal of Arid Land, 2021, 13(5): 433-454.
[8] JIA Wuhui, YIN Lihe, ZHANG Maosheng, ZHANG Xinxin, ZHANG Jun, TANG Xiaoping, DONG Jiaqiu. Quantification of groundwater recharge and evapotranspiration along a semi-arid wetland transect using diurnal water table fluctuations[J]. Journal of Arid Land, 2021, 13(5): 455-469.
[9] MU Le, LU Yixiao, LIU Minguo, YANG Huimin, FENG Qisheng. Characterizing the spatiotemporal variations of evapotranspiration and aridity index in mid-western China from 2001 to 2016[J]. Journal of Arid Land, 2021, 13(12): 1230-1243.
[10] Durdiev KHAYDAR, CHEN Xi, HUANG Yue, Makhmudov ILKHOM, LIU Tie, Ochege FRIDAY, Abdullaev FARKHOD, Gafforov KHUSEN, Omarakunova GULKAIYR. Investigation of crop evapotranspiration and irrigation water requirement in the lower Amu Darya River Basin, Central Asia[J]. Journal of Arid Land, 2021, 13(1): 23-39.
[11] YANG Meilin, YU Yang, ZHANG Haiyan, WANG Qian, GAN Miao, YU Ruide. Tree ring based drought variability in Northwest Tajikistan since 1895 AD[J]. Journal of Arid Land, 2020, 12(3): 413-422.
[12] ZHENG Jing, FAN Junliang, ZOU Yufeng, Henry Wai CHAU, ZHANG Fucang. Ridge-furrow plastic mulching with a suitable planting density enhances rainwater productivity, grain yield and economic benefit of rainfed maize[J]. Journal of Arid Land, 2020, 12(2): 181-198.
[13] LI Yangyang, CHEN Jiacun, AI Shaoshui, SHI Hui. Responses of leaf water potential and gas exchange to the precipitation manipulation in two shrubs on the Chinese Loess Plateau[J]. Journal of Arid Land, 2020, 12(2): 267-282.
[14] DANG Hongzhong, ZHANG Lizhen, YANG Wenbin, FENG Jinchao, HAN Hui, CHEN Yiben. Severe drought strongly reduces water use and its recovery ability of mature Mongolian Scots pine (Pinus sylvestris var. mongolica Litv.) in a semi-arid sandy environment of northern China[J]. Journal of Arid Land, 2019, 11(6): 880-891.
[15] HE Guohua, ZHAO Yong, WANG Jianhua, GAO Xuerui, HE Fan, LI Haihong, ZHAI Jiaqi, WANG Qingming, ZHU Yongnan. Attribution analysis based on Budyko hypothesis for land evapotranspiration change in the Loess Plateau, China[J]. Journal of Arid Land, 2019, 11(6): 939-953.