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Computer-Based Estimation System for Land
Productivity
Xiangzheng Deng 1,2 , Qunou Jiang 1,3 , and Xin Wen 4
1 Institute of Geographic Sciences and Natural Resources Research,
Chinese Academy of Sciences, Beijing, 100101, China
2 Center for Chinese Agricultural Policy, Chinese Academy of Sciences,
Beijing, 100101, China
dengxz.ccap@igsnrr.ac.cn
3 Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
jiangqo.dls@163.com
4 China University of Geosciences, Beijing, 100083, China
wx0410@Gmail.com
Abstract. Land productivity generally refers to the overall productivity related to
various combinations of the natural characteristics of the land and socioeconomic
factors. Structural change and pattern succession in land systems undoubtedly
leads to changes in the suitability and quality of different kinds of land types
and directly influences agricultural productivity. In this paper we describe the
processes, parameters needed and methods of data preparation, which will im-
prove the ability of readers to use this model and provide a foundation for its
wide application.
Keywords: Land productivity, Parameter configuration, ESLP.
1 Principles
The land resource is a multifunctional natural resource, which is in continuously
growing demand under a background of rapid population growth and fast economic
development [1]. This is especially the case in China, where the economy is developing
rapidly and land use patterns are undergoing unprecedented change due to pressure
from these demands [2]. Structural change and pattern succession in land systems
undoubtedly leads to changes in the suitability and quality of different kinds of land
types and directly influences agricultural productivity.
The Estimation System for Land Productivity (ESLP) is a collection of several ap-
plications, including land suitability assessment, and the evaluation of land productivity,
and some advanced applications which use the stock of land resources as fundamental
input information. The outputs from the ESLP include agro-ecological zoning maps, land
suitability assessment maps, and attribute data such as cropping area and crop production.
2 Parameters
The growing period for crops, influenced by seasons, is one of the important parame-
ters in the ESLP. As a comprehensive indicator of changes to the agro-ecological
 
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