Research on Index System of Land Resource Quantity, Quality and Ecological Monitoring
GUO Xudong;China Land Surveying and Planning Institute;Key Laboratory of Land Use of Ministry of Land and Resources;
In order to provide cooperation to the construction of field scientific observation and research bases of the Ministry of Land and Resources and to observe key scientific phenomena and collect scientific data, currently it is suggested that an index system of land resource quantity, quality and ecological monitoring should be established. This index system may be divided into 9 monitoring contents: land-use change, soil property, crop condition, soil pollution and salinization, land-use intensity, agricultural land transfer, land ecological conditions and plot-based land quality investigation and land degradation monitoring, with a total of 35 indexes. The structure of the index system comprises monitoring content, monitoring indexes, data sources, monitoring methods, monitoring scale(regional, plot and sampling point) and monitoring period. The index system can assist in the construction of field scientific observation and research bases of the Ministry of Land and Resources and meet the needs of long-term integrated monitoring and data management carrying out at the bases. What needs to be done in the next step is to further improve the indexes so as to reflect the differences between regions and industrial characteristics and develop the techniques and methods to comprehensively evaluate land resource quantity, quality and ecological conditions.