廣東各地土壤侵蝕量等

1、                     廣東省各地級市土壤侵蝕量與平均侵蝕模數(shù)市強(qiáng)度行政區(qū)面積(km2)微度(km2)輕度(km2)中度(km2)強(qiáng)度(km2)極強(qiáng)(km2)劇烈(km2)侵蝕量(t)平均侵蝕模數(shù)(t/km2·a)廣州市7,145.076,821.1417.9179.1395.6386.4044.865,303,649.37742.28深圳市1,896.561

2、,731.418.561.2581.5273.450.371,629,062.73858.96珠海市1,431.381,325.1611.6614.3219.6427.7032.902,525,272.231,764.22汕頭市2,043.481,992.180.9315.4226.058.740.16586,957.34287.23韶關(guān)市15,661.0413,540.11542.78923.98478.72164.5010.9511,588,326.04739.95河源市18,366.7116,009.291,107.56600.29482.66124.8142.1112,844,041.

3、74699.31梅州市15,877.9512,372.26316.161,145.081,014.40663.71366.3541,056,531.142,585.76惠州市11,345.0210,596.63247.93213.14225.6057.184.534,873,240.54429.55汕尾市4,817.874,215.5491.36181.14218.25105.695.894,307,451.98894.06東莞市2,434.172,334.220.162.5760.5735.481.181,169,254.30480.35中山市1,696.701,591.708.8616.7

4、124.1848.616.651,363,285.56803.49江門市9,114.048,417.9552.43256.84266.3596.9923.486,255,452.56686.35佛山市3,806.583,543.6816.5557.12145.5242.970.742,163,653.66568.40陽江市7,720.267,153.08108.80232.42183.4236.496.043,879,095.91502.46湛江市12,319.5611,930.4538.45139.3881.03130.150.114,101,340.76332.91茂名市11,350.13

5、9,847.34257.01711.41430.61101.612.148,371,785.65737.59肇慶市14,905.0813,499.1489.55718.06413.84158.2226.2710,495,246.17704.14清遠(yuǎn)市19,015.5215,734.65571.731,008.251,538.14137.0225.7319,619,747.331,031.78潮州市3,044.412,616.55113.75170.70118.6424.680.102,198,330.48722.09揭陽市5,287.564,785.81109.18274.2397.7920.

6、160.392,679,767.82506.81云浮市7,790.466,078.33196.14667.02682.14151.8514.9810,574,536.071,357.37合計177,069.55 156,136.61 3,907.46 7,428.45 6,684.70 2,296.41 615.93 157,586,074.96 889.97                               &