邹城市矿粮复合区土地利用变化及生态系统服务价值分析

Analysis of land use change and ecosystem service value in the overlapped areas of crop and mineral production in Zoucheng City

以山东省邹城市为试点，依据1990~2005年土地统计资料对该市矿粮复合区生态系统服务价值进行分析。结果表明，矿粮复合区内土地利用结构变化较快，具体表现为耕地的快速减少，水域和未利用土地大幅度增加。由于水域面积的增加，15a间复合区生态系统总服务价值呈现增长趋势；在土地利用类型中耕地的贡献率最大，在70％左右，其次为水域，且这2种类型贡献率变化最大，林地的贡献率在复合区内最小，一般在5％左右；生态服务功能在复合区和非复合区之间差别最大的是水分调节功能；在所有乡镇中废物处理和土壤形成功能都处于主导地位，废物处理功能大幅度增加，而土壤形成功能逐渐减少；复合区中生物多样性和娱乐功能有所增加，食物生产功能略有下降。

Take Zoucheng city, Shandong Province as a case, according to lands statistical data during 1990~ 2005, ecosystem service value in the overlapped areas of crop and mineral production（OACM） had been analyzed. The results indicate that the change of land use structure is fast in OACM, which displays as the cultivated land reduces fast, the water area and unused land increase largely. As a result of the water area increasing, the ecosystem total service value in OACM presents a growth tendency in recent 15 years. The contribution rate of cultivated land is the biggest in different land use types, it is about 70 %, next is the water area, and the contri- bution rate of these two types change mostly. The contribution rate of the forest land is the smallest in OACM, generally about 5%. The most significant difference of the ecology service function between OACM and non- OACM is the function of water regulation. The waste treatment and soil formation function are both in the leading position in all towns. The waste treatment function increases largely, but the soil formation function gradually decreases. In OACM biology multiplicity and the entertainment function have increased, but food production function drops slightly.