TVDI在冬小麦春季干旱监测中的应用

doi:10.11873/j.issn.1004-0323.2008.2.161

閬ユ劅鎶�鏈笌搴旂敤鈥衡�� 2008, Vol. 23 鈥衡�� Issue (2): 161-165.DOI: 10.11873/j.issn.1004-0323.2008.2.161

鈥� 鐮旂┒涓庡簲鐢� 鈥� 涓婁竴绡� 涓嬩竴绡�

TVDI鍦ㄥ啲灏忛害鏄ュ骞叉棻鐩戞祴涓殑搴旂敤

鏉庢槬寮�¹,鏉庣孩鍐�²

锛�1.娌冲寳鐪佹皵璞′笌鐢熸�佺幆澧冮噸鐐瑰疄楠屽,娌冲寳鐪佹皵璞＄瀛︾爺绌舵墍,娌冲寳鐭冲搴� 050021锛涱��
2.涓浗绉戝闄㈤仐浼犱笌鍙戣偛鐢熺墿瀛︾爺绌舵墍鍐滀笟璧勬簮鐮旂┒涓績,娌冲寳鐭冲搴� 050021 锛�

鏀剁鏃ユ湡:2007-09-18 淇洖鏃ユ湡:2008-03-05 鍑虹増鏃ユ湡:2008-04-20 鍙戝竷鏃ユ湡:2011-10-24
浣滆�呯畝浠�:鏉庢槬寮猴紙1964-锛�,鐢穦纭曞＋|楂樼骇宸ョ▼甯坾涓昏浠庝簨鍐滀笟姘旇薄鍜岄仴鎰熷簲鐢ㄧ爺绌躲�侲-mail:chunql@sohu.com銆� 顎�
鍩洪噾璧勫姪:
“鍗佷簲”鍥藉绉戞妧鏀诲叧椤圭洰锛�2004BA509B14锛夛紝涓浗绉戝闄㈢煡璇嗗垱鏂伴」鐩紙KZCX2-SW-317锛夈��

The Application of TVDI in Drought Monitoring顎� for Winter Wheat in Spring

LI Chun-qiang¹,LI Hong-jun²

(1.Hebei Provincial Key Lab for Meteorology and Eco-Environment,顎僅ebei Provincial Research Institute of Meteorological Science,Shijiazhuang 050021,China;
2.Center for Agricultural Resources Research,Institute of Genetic and Developmental Biology,顎僀hinese Academy of Sciences,Shijiazhuang 050021,China)

Received:2007-09-18 Revised:2008-03-05 Online:2008-04-20 Published:2011-10-24

鎽樿/Abstract

鎽樿锛�

搴旂敤鍐皬楹︽槬瀛ｇ敓闀挎湡鐨凬OAA/AVHRR璧勬枡锛屽弽婕斿綊涓�鍖栨琚寚鏁帮紙NDVI锛夈�佸湡澹よ皟鏁存琚寚鏁帮紙SAVI锛夊拰涓嬪灚闈㈡俯搴︼紙T_s锛夛紝鍒嗘瀽浜嗘琚寚鏁板拰涓嬪灚闈㈡俯搴︾┖闂寸壒寰侊紝閲囩敤娓╁害妞嶈鏃辨儏鎸囨暟锛圱VDI锛夛紝鐮旂┒浜嗘渤鍖楃渷2005骞�3~5鏈堢殑鍐皬楹︽棻鎯呯姸鍐点�傜粨鏋滆〃鏄庯細鍩轰簬SAVI鐨勬俯搴︽琚棻鎯呮寚鏁颁笌鍦熷￥琛ㄥ眰鐩稿婀垮害鐨勭浉鍏虫�уソ浜庡熀浜嶯DVI鐨勬俯搴︽琚棻鎯呮寚鏁般�傞�氳繃涓庢皵璞＄珯鍦熷￥姘村垎瑙傛祴璧勬枡杩涜鐩稿叧鎬у垎鏋愶紝琛ㄦ槑娓╁害妞嶈鏃辨儏鎸囨暟涓�10 cm鍦熷￥鐩稿婀垮害鍏崇郴鏈�濂斤紝顎�20 cm顎夋涔嬶紝50 cm杈冨樊銆傚洜姝わ紝鍩轰簬SAVI鐨勬俯搴︽琚棻鎯呮寚鏁版洿閫備簬鐩戞祴鍐皬楹︽槬瀛ｇ殑鏃辨儏銆�

鍏抽敭璇�: 閬ユ劅, 鍐皬楹�, 娓╁害妞嶈鏃辨儏鎸囨暟, 鍦熷￥璋冩暣妞嶈鎸囨暟, 褰掍竴鍖栨琚寚鏁�

Abstract:

Droughts hazard occurs frequently in nature and has a great impact on agriculture.Timely monitoring and assessment of drought conditions is critical to mitigate its effects.Using NOAA/AVHRR satellite data,we derived the normalized difference vegetation index (NDVI),soil-adjusted vegetation index (SAVI),land surface temperature (LST) and analyzed the spatial characteristics of vegetation indices and land surface temperature.The temperature vegetation dryness index (TVDI) was used to monitor the winter wheat drought conditions from March to May of 2005 in the middle-south part of Hebei Province.The results showed that the correlation of soil moisture with TVDI based on SAVI was better than that based on NDVI.The analysis of TVDI and soil moisture data from weather stations' measurement demonstrated that a good correlation existed between TVDI and relative humidity of soil at 10cm and 20cm.Therefore,TVDI is a better indicator for operational drought monitoring.

Key words: Remote sensing, Winter wheat, Temperature vegetation dryness index, Soil-adjusted vegetation index(SAVI), Normalized difference vegetation index(NDVI)

涓浘鍒嗙被鍙�:

TP 79
S127

鏉庢槬寮�,鏉庣孩鍐�. TVDI鍦ㄥ啲灏忛害鏄ュ骞叉棻鐩戞祴涓殑搴旂敤[J]. 閬ユ劅鎶�鏈笌搴旂敤, 2008, 23(2): 161-165.

LI Chun-qiang,LI Hong-jun. The Application of TVDI in Drought Monitoring顎� for Winter Wheat in Spring[J]. Remote Sensing Technology and Application, 2008, 23(2): 161-165.

鍙傝�冩枃鐚�

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TVDI鍦ㄥ啲灏忛害鏄ュ骞叉棻鐩戞祴涓殑搴旂敤

The Application of TVDI in Drought Monitoring顎� for Winter Wheat in Spring

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