Establishment of Winter Wheat Regional Simulation Model Based on Remote Sensing Data and Its Application

被引：1

作者：

马玉平 ^{[1
]}

王石立 ^{[1
]}

张黎 ^{[1
]}

侯应雨 ^{[2
]}

庄立伟 ^{[2
]}

王馥棠 ^{[2
]}

机构：

[1] Chinese Academy of Meteorological Sciences

[2] National Meteorological Center

来源：

ActaMeteorologicaSinica | 2006年 / 04期

基金：

中国国家自然科学基金;

关键词：

crop growth simulation; remote sensing data; coupling model; winter wheat; North China;

D O I：

暂无

中图分类号：

P407 [大气遥感];

学科分类号：

1404 ;

摘要：

Accurate crop growth monitoring and yield forecasting are significant to the food security and the sus- tainable development of agriculture.Crop yield estimation by remote sensing and crop growth simulation models have highly potential application in crop growth monitoring and yield forecasting.However,both of them have limitations in mechanism and regional application,respectively.Therefore,approach and methodology study on the combination of remote sensing data and crop growth simulation models are con- cerned by many researchers.In this paper,adjusted and regionalized WOFOST (World Food Study) in North China and Scattering by Arbitrarily Inclined Leaves-a model of leaf optical PROperties SPECTra (SAIL-PROSFPECT) were coupled through LAI to simulate Soil Adjusted Vegetation Index (SAVI) of crop canopy,by which crop model was re-initialized by minimizing differences between simulated and synthesized SAVI from remote sensing data using an optimization software (FSEOPT).Thus,a regional remote-sensing- crop-simulation-framework-model (WSPFRS) was established under potential production level (optimal soil water condition).The results were as follows:after re-initializing regional emergence date by using remote sensing data,anthesis,and maturity dates simulated by WSPFRS model were more close to measured values than simulated results of WOFOST;by re-initializing regional biomass weight at turn-green stage,the spa- tial distribution of simulated storage organ weight was more consistent with measured yields and the area with high values was nearly consistent with actual high yield area.This research is a basis for developing regional crop model in water stress production level based on remote sensing data.

引用

页码：447 / 458

页数：12

共 27 条

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