The cultivated land grain production ability monitoring and early warming with remote sensing, which faced the nation significant demand and took solving china security significant strategic problem as the objective, which used the remote sensing monitor technology and with the ground investigation to establish the cultivated land grain production ability remote sensing monitor technology system and that included 22 indexes such as the farming resources use intensity, the water resources safeguard, the agricultural disaster, the moisture content productivity, the crops yield and the crops water consumption and so on; which establishes our country cultivated land grain production ability early time warning model and the latent cultivated land gain production ability metaphase early warning model and that develops the china cultivated land grain production ability in the short-term early warning and the metaphase early warning, and instructs the experiment area to carry out the ground observation and monitoring.

This topic regards the demand of china grain macroeconomic control information safeguard key technologies, through the grain food source quantity information acquisition and the grain price forecasting and the granary inventories technical breakthrough, which solves the bottleneck restriction of food supply macroeconomic regulation and control information acquisition; through the enhancement of macroeconomic regulation and control information acquisition and analysis ability to the grain supply- demand and storage and so on, which provides the information safeguard for the national grain macroeconomic regulation and control and enhances the informationization level of the grain macroeconomic regulation and control .

This topic divides into three subtopics. First, the fast check technology research to the non-contact grain storage quantity. It uses three-dimensional laser detection technology to survey the granary outside volume, and with the ultra-wide band radar and so on to measure the granary inside workshop、the ventilating duct 、the built-in instrument and the sundries volume to exploder the grain warehousing volume check technology; Using the ultra-wide band radar and the sound check technology, as well as other non-contact type measuring technique to research the granary grain surface position， the grain density, the moisture content and the type monitor technology; And as the foundation, which creates the granary stock practicality characteristic non-contact inspection equipment prototype and the grain stock practicality inspection system; Secondly, the research on short term grain source, supply quantity monitor and price forecasting technology. The grain price short-term forecast model is established to develop the research of the grain price short-term forecast and the early warning, through the development grain food source quantity short-term monitor and the simultaneous research on the farmer personal storage grain investigation and the grain price correlation factor influence . Thirdly, the research on medium and long-term food supply quantity and price forecasting technology. Through the development of the medium and long-term trend analysis on the grain source quantity main limit factors, and establishes the grain food source medium and long-term grid forecast model to carry out the grain self-sufficiency degree in medium and long-term forecasting technology research, and founds the model on global/nation and region food supply quantity and the price medium and long-term forecast to research the medium and long-term forecast and the early warning technology on food supply quantity and the price.

This topic will obtain four main achievement. Firstly, the wheat granary stock characteristic non-contact inspection technology and the equipment prototype; secondly, the grain stock practicality inspection system; Thirdly, the medium and long-term and short-term monitor technology to the food supply source quantity; fourth, the medium and long-term and short-term forecast and early warning technology on food supply quantity and price.

Through the industrialization demonstration of the global crop production estimation by remote sensing and the early warning system, which supply the series information product which the grain user needs to the Government department, the grain futures market, the grain trading market organization, the large crop oil enterprise, the grain agency and the Service organization and so on and which promotes the large-scale industrialization application of the domestic remote sensing data product; which cultivates and forms the grain information increment and the technical advisory work service that based on the global grain remote sensing estimation and early warning system's ;and which forms the complete remote sensing profession application industrial chain in the grain trade.

The global grain remote sensing estimation and the early warning system is mainly based on the domestic product independent remote sensing data, which solve monitor precision question, and forms the standardization processing that change the remote sensing data to the information, which monitors the whole world food production situation real time ,and provide the stably and high grade information product, which issues the early warning caused by the food supply fluctuation situation included the food production fluctuation, the significant natural disaster and the biomass energy using and so on; Which promotes the global grain remote sensing estimation and the early warning information formalization application, and develops the analysis, the forecast and the early warning system which based on the grain transmission service circulates of various aspects such as the grain macroeconomic regulation and control with remote sensing monitor information, the futures market, the grain trading market, the grain price, the grain circulation, which forms the annual production that reach 500,000,000 Yuan scales subdivision market in the satellite remote sensing information product applications.

The project construction content mainly includes 14 analysis systems, which mainly includes the global and the national crops growing trend monitor and analysis system; the global and the national drought situation monitor and the analysis system; the global and the nation planting area estimate and the analysis system; the global and the national crops yield forecast and estimate system; the national disaster monitor and the early warning analysis system; the global main grain production nation production analysis system; The nation planting structure and the multiple-crop index monitor and analysis system; the national badlands rate, the fallow rate monitor and the analysis system; the global and the national grain supply and demand balance analysis system; china grain planter cost analysis system ; china ground information acquisition and analysis system; china grain inventory analysis forecast system; the global grain information product integration system; the global grain trade information bulletin system.

The “China CropWatch System” is running with American, the European Union in agricultural production remote sensing observation, which includes six sub-system such as the crop growth trend monitor, the crops drought situation monitor, the main crop production prediction, the grain production predict ion, the crops space time structure monitor and the grain supply and demand balance early warning and so on. The crops growing trend monitor and the output estimation monitor scope includes China and the whole world including North America, South America, Eastern European, South African, Australian, Indian, Thailand.

At present, the “China CropWatch System” issues 7 monitor bulletins the public every year, which provided the scientific basis for china Decision-making department and the user including the State Council's Office, national Development and Planning Commission, the Country Flood prevention and drought resisting Headquarters Office, Ministry of Agriculture, Bureau of Civil Administration, the National Grain bureau, the State Statistical Bureau and so on more than 20 User branches.

In order to ensure the quality of the“ China CropWatch System”, the systems operation process with the highly compatible operating standard. The monitor work is started in March every year, and from March to make sure the annual each month's work content and the starting time, for the operator followed.

Time	Content	result
March	System starts, Annual data order plan and Sampling Plan. Expediting the sampling troop.	Monitoring plan
April	Monitoring china crop growth condition and the drought by remote sensing. Some nation crop growth trends and production estimates in the global such as the corn production estimate in Brazil, Argentina and South Africa.: the soybean production estimate in Brazil, Argentina	China summer grain crops growth co-ndition and the drought. Some nation crop growth trends and production estimates in the global such as the corn production estimate in Braz-il,Argentina and South Africa.:the soy-bean production estimate in Braz-il,Argentina.
May	Monitoring china crop growth trend and the ravages of a drought by remote sensing.Estimating china winter wheat acreage and production.Estimating china summer grain crops product-ion.Monitoring some nation crop growth trend in the Global. Estimating the US wheat production.Estimating the India and Egypt wheat production.	China winter wheat growth trend and the ravages of a drought bullet-in.China winter wheat acreage and production.China summer grain crops production.China summer crops plan-ting structure.Some national crop gro-wth trend bulletin such as the wheat production in US、India and Egypt
June	Monitoring china crop growth trend and the ravages of a drought by remote sensing. Estimating early rice acreage and production. China winter wheat production estimate and correcting. Some nation crop growth trend monitoring. The wheat production estimate in Russia 、White Russia 、Ukraine and Rumania.	The crops growth trend and the ravages of a droug-ht bulletin China winter wheat production (check result) China summer grain crops production(check result) Estimating early rice acreage and pro-duction. Some nation crop growth trend Bul-letin.
July	Monitoring china crop growth trend and the ravages of a drought by remote sensing. Estimating china spring wheat acreage and production. China early rice production estimate and correcting. Some nation crop growth trend monitoring in the global.	The crops growth trend and the rav-ages of a drought bulletin China early rice production (check result) China spring wheat acreage and prod-uction. Some nation crop growth trend mon-itoring in the global.
August	Monitoring china crop growth trend and the ravages of a drought by remote sensing. Estimating the china acreage and production of middle rice/one season rice 、corn and soybean. China winter wheat production estimate and correcting. Some nation crop growth trend monitoring in the global. The US corn and soybean production estimate. The Canada and Germany wheat production estimate. The corn production estimate of Spain 、Romania and Ukraine.	The crops growth trend and the rava-ges of a drought bulletin China winter wheat acreage and prod-uction. (check result) The china acreage and production of middle rice/one season rice、corn and soybean. Some nation crop growth trend bulletin in the global The USA corn and soybean production estimate. The corm production estimate of Sp-ain、Romania and Ukraine.
September	Monitoring china crop growth trend and the ravages of a drought by remote sensing. Estimating the china acreage and production of late rice. Correcting estimate the china acreage and production of middle rice/one season rice 、corn and soybean. Some nation crop growth trend monitoring in the global. The wheat production estimate of France 、Britain、Poland、Hungary and Kazakhstan. The corn production estimate of Italy、Hungary、India and Egypt. The paddy rice production estimate of Vietnam、Philippine、Bengal 、India、Indonesia and Thailand.	The crops growth trend and the rav-ages of a drought bulletin. The china production of middle rice 、corn and soybean. (check result) The china acreage and production of Late rice. The china Autumn grain production. The china Autumn crops planting str-ucture. Some nation crop growth trend moni-toring in the global. The wheat production estimate of Fr-ance、Britain、Poland、Hungary and Kazakhstan.The corn production est-imate of Italy、Hungary、India and Egypt.The paddy rice production est-imate of Vietnam、Philippine、Beng-al、India、Indonesia and Thailand. The paddy rice production estimate of Vietnam、Philippine、Bengal、India、Indonesia and Thailand.
October	Monitoring china crop growth trend and the ravages of a drought by remote sensing. Correcting estimate the china production of late rice. Some nation crop growth trend monitoring in the global. Some nation main crop production correcting estimate in the global.	The crops growth trend and the rav-ages of a drought bulletin. The china production of Late rice(check result) China main crops acreage and pro-duction estimate results.(check result) China Cropping index Some nation crop growth trend monitoring bulletin in the global. Some nation main crop production in the global. (check result)

1998-2000: the Key Program of the Chinese Academy of Sciences "Information System of Remote Sensing in Resource & Environment of China and China CropWatch System", second sub-project, "China CropWatch Bulletin and Information System of Major Crops' Production Estimation", third sub-project "Regional Information System of Remote Sensing in Resource & Environment and China CropWatch Bulletin"（KZ951-A1-302/KZ95T-03）;

2000-2002: Extension Program for Main Achievements by Chinese Ministry of Sciences and Technology: "Global Grain Production Monitoring with Remote Sensing"（KZCX2-313）

2001-2003: the National Key Technologies R & D Program of China during the 10th Five-Year Period "Study on Exploitation and Sharing Technology of Agro-info Resources"（2001BA513B02）；

2005-2007: Extension Program for Main Achievements by Chinese Ministry of Sciences and Technology: "China CropWatch System with Remote Sensing" (O5Y10400KG)