PREHARVEST WHEAT YIELD AND PRODUCTION ESTIMATION FOR THE PUNJAB, INDIA

被引：17

作者：

DUBEY, RP ^{[1
]}

AJWANI, N ^{[1
]}

KALUBARME, MH ^{[1
]}

SRIDHAR, VN ^{[1
]}

NAVALGUND, RR ^{[1
]}

MAHEY, RK ^{[1
]}

SIDHU, SS ^{[1
]}

JHORAR, OP ^{[1
]}

CHEEMA, SS ^{[1
]}

NARANG, RS ^{[1
]}

机构：

[1] PUNJAB AGR UNIV,DEPT AGRON,LUDHIANA 141004,PUNJAB,INDIA

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 1994年 / 15卷 / 10期

关键词：

D O I：

10.1080/01431169408954232

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

Two different approaches to relate wheat yield with spectral indices derived from remotely-sensed data have been explored for the state of Punjab, India. In the study based on site-level approach yield obtained from crop-cutting sites was found to be linearly related to NIR/Red ratio derived from Landsat MSS data of corresponding sites in Ludhiana and Patiala districts of Punjab. Incorporation of agrometeorological data was also tried. Certain inherent limitations of the site-level approach led to the district-level studies which focused on the relation of district yields with corresponding average spectral indices derived from satellite sensors like Landsat MSS and IRS-LISS-I. Significant correlations were observed in all cases and the relation based on Landsat MSS/IRS LISS-I data was used for trial forecast of wheat yields for 1989-90 season. A comparison of remote-sensing based production forecast showed good agreement with the conventional estimate of Bureau of Economics and Statistics at state level although at district level, deviations were larger.

引用

页码：2137 / 2144

页数：8

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