黃土高原耕地坡度分級(jí)數(shù)據(jù)集

數(shù)據(jù)來(lái)源：中國(guó)科學(xué)院地理科學(xué)與資源研究所（一）目的與意義土地利用不合理是導(dǎo)致黃土高原水土流失強(qiáng)烈的重要人為因素，土地利用不合理的集中表現(xiàn)是坡耕地面積大。根據(jù)我們的耕地坡度分級(jí)數(shù)據(jù)，黃土高原耕地面積為19425.92萬(wàn)畝，其中坡耕地（〉3°）為9269.64萬(wàn)畝，占耕地總面積的47.7%。在坡耕地中，〉7°的為7525.06萬(wàn)畝，占坡耕地總面積的81.2%；〉15。的為4178.47萬(wàn)畝，占44.8%；〉25。的為1106.43萬(wàn)畝，占11.9%。在黃土高原主體部分陜、晉、甘地區(qū)坡耕地中，〉7°的占80.7%；〉15。的占45.9%；〉25。占12.6%，可見，坡耕地是土壤侵蝕的重點(diǎn)。水土流失使坡耕地成為跑水、跑土、跑肥的“三跑田”，據(jù)資料，在7°以下的坡耕地，每年每畝流失土壤1t左右；25。左右的坡耕地，每年每畝流失土壤8-10t，致使土地日益貧脊，并加劇了干旱發(fā)展，導(dǎo)致農(nóng)業(yè)生產(chǎn)低而不穩(wěn)。在影響坡耕地土壤侵蝕強(qiáng)度的諸多因素中，地面坡度是最基本的因素。盡管坡度與侵蝕的關(guān)系很復(fù)雜，但一般情況下，土壤侵蝕與坡度成正比。即當(dāng)徑流相同時(shí)，坡度越大，侵蝕量越大；在同樣的降水條件下，徑流量隨坡度增大而增加，水流的沖刷力加強(qiáng)，侵蝕量也隨坡度增大而增加，這是黃土高原坡度影響侵蝕的基本規(guī)律。編制黃土高原地區(qū)抽樣地段1：50000耕地坡度分級(jí)圖并采用數(shù)學(xué)統(tǒng)計(jì)方法編制耕地坡度分級(jí)數(shù)據(jù)，是對(duì)黃土高原土地資源類型、數(shù)量、質(zhì)量、分布等研究的深化和發(fā)展。其目的在于揭示坡耕地形成過程及坡度特征，以便進(jìn)一步了解坡耕地水土流失規(guī)律，更好地為水土保持工作、土地資源的合理開發(fā)利用、農(nóng)業(yè)生產(chǎn)的發(fā)展及黃土高原的綜合治理開發(fā)提供科學(xué)依據(jù)。該項(xiàng)工作自1987年4月開始，至1990年9月結(jié)束。（二）方法方法有兩種：通過編制黃土高原地區(qū)抽樣地段1：50000耕地坡度分級(jí)圖，并采用數(shù)學(xué)方法編制耕地坡度分級(jí)清單。（1）抽樣地段的選擇抽樣地段是指在黃土高原地區(qū)耕地類型組合具有代表性，又有1：50000土地利用現(xiàn)狀圖或有航片、衛(wèi)片可以編制1：50000耕地分布圖的地段。選取典型地段面積最小為10cmX10cm，制圖精度應(yīng)滿足抽樣調(diào)查的要求。（2）耕地坡度分級(jí)指標(biāo)代號(hào)12345T坡度<3°3°—7°7°—15°15°-25°>25°梯田（3）作法將收集到的或編制的1：50000土地利用現(xiàn)狀圖上的耕地和水平梯田解譯在塑料薄膜上，然后將其套合在1：50000的地形圖上，對(duì)所作的耕地坡度分級(jí)，即成耕地坡度分級(jí)圖。（4）量算面積首先對(duì)耕地坡度分級(jí)圖上的水平梯田和各坡度級(jí)的耕地進(jìn)行面積量算。面積量算方法，各地有異：寧夏采用ML—II型面積掃描儀進(jìn)行，甘肅采用求積儀法，陜西采用稱重法，內(nèi)蒙古則采用數(shù)方格法。要求每個(gè)圖斑至少量算二次，在誤差小于2%的情況下取平均值。在采用稱重法時(shí)，稱重系數(shù)、校核系數(shù)的計(jì)算公式：稱重系數(shù)=樣圖總面積（畝）/樣圖稱重（g）校核系數(shù)=（樣圖總面積一樣圖量算面積）/樣圖量算面積求出抽樣地段耕地總面積。求出耕地坡度分級(jí)圖所代表的區(qū)域面積。將若干抽樣地段耕地坡度分級(jí)圖上得到的各坡度級(jí)的耕地面積對(duì)應(yīng)相加，并用對(duì)應(yīng)抽樣地段耕地面積之和相除，即得到各坡度級(jí)的耕地占抽樣調(diào)查地段耕地面積的平均百分?jǐn)?shù)。最后，根據(jù)抽樣調(diào)查區(qū)域內(nèi)的土地特征，綜合分析并依據(jù)統(tǒng)計(jì)原理進(jìn)行統(tǒng)計(jì)處理，匯總計(jì)算得到全縣（市、旗）的各坡度級(jí)的耕地?cái)?shù)量。利用土地概查、詳查、土壤普查及農(nóng)業(yè)區(qū)劃的有關(guān)資料對(duì)所求得的面積（毛面積）再進(jìn)行凈耕地面積的校核。即分別扣除所包含的非耕地（小片林，草地，居民點(diǎn)，交通干線等）。對(duì)最終求得的耕地坡度分級(jí)面積按?。▍^(qū)）等進(jìn)行匯總整理成數(shù)據(jù)。應(yīng)當(dāng)著重說明的是：由于受經(jīng)費(fèi)限制和1：50000土地利用現(xiàn)狀圖又極難收集得到，各地1：50000耕地坡度分級(jí)圖的編制并未強(qiáng)求在資料、方法等方面完全一致，但主要工作步驟、程度及精度上是很接近的。由于受資料限制，有些地區(qū)梯田面積難以用抽樣法弄清。最后梯田全部采用了1986年的統(tǒng)計(jì)面積。這里的梯田面積實(shí)際為梯、條田面積之和。還是由于上述原因，青海省與河南省分沒有最終完成。在引用本數(shù)據(jù)集數(shù)據(jù)時(shí)務(wù)請(qǐng)注意數(shù)據(jù)所含范圍。采用公里網(wǎng)點(diǎn)為抽樣點(diǎn)，進(jìn)行抽樣調(diào)查。只有山西省采用了這種方法。其與第一種作法的最大區(qū)別是沒有制圖過程。山西省的耕地坡度分級(jí)數(shù)據(jù)是根據(jù)數(shù)理統(tǒng)計(jì)原理，通過抽樣調(diào)查、定點(diǎn)實(shí)測(cè)、現(xiàn)場(chǎng)填寫匯總計(jì)算而獲得的。具體作法如下：（1）以1：50000地形圖上平面直角坐標(biāo)系單公里網(wǎng)點(diǎn)為抽樣點(diǎn)，進(jìn)行抽樣調(diào)查。（2）結(jié)合土地利用現(xiàn)狀調(diào)查，用森林羅盤實(shí)測(cè)全省156000個(gè)樣點(diǎn)的位置。以樣點(diǎn)為單位，按土地和現(xiàn)狀分類標(biāo)準(zhǔn)，核實(shí)耕地，用儀器測(cè)定耕地實(shí)際田面坡度，就地填寫在統(tǒng)一的調(diào)查表中。將田面坡度劃分為＜3°、3°—7°、7°—15°、15°—25°、〉25°，并列出水平梯田，分別進(jìn)行歸類統(tǒng)計(jì)。統(tǒng)計(jì)全縣的樣點(diǎn)數(shù)，按抽樣調(diào)查公式，計(jì)算全縣耕地各坡度級(jí)的面積，最后逐級(jí)匯總，得到全省的耕地不同坡度的數(shù)據(jù)。分區(qū)說明綜合治理開發(fā)分區(qū)為了因地制宜的對(duì)黃土高原地區(qū)實(shí)施綜合治理開發(fā)，特將本區(qū)劃分為在綜合治理特點(diǎn)和經(jīng)濟(jì)開發(fā)方向上皆較一致的區(qū)域，即綜合治理開發(fā)區(qū)。分區(qū)總的標(biāo)準(zhǔn)是突出環(huán)境治理與經(jīng)濟(jì)開發(fā)的關(guān)聯(lián)性和整體性，并使區(qū)內(nèi)在自然、經(jīng)濟(jì)、社會(huì)因素等方面具有最大的相似性。為了便于應(yīng)用社會(huì)、經(jīng)濟(jì)統(tǒng)計(jì)資料和方便地方行政領(lǐng)導(dǎo)，分區(qū)保持縣(市、旗)界的完整。土地潛力分區(qū)土地潛力區(qū)反映黃土高原地區(qū)范圍內(nèi)，區(qū)域間土地生產(chǎn)力的對(duì)比。在同一潛力區(qū)內(nèi)，應(yīng)具有大致相同的土地生產(chǎn)能力，包括適宜的作物、牧草和林木的種類、組成、耕作制度和產(chǎn)量水平，以及相似的土地利用方向和改良途徑與措施。劃分潛力區(qū)的依據(jù)是水熱條件，其具體指標(biāo)見《黃土高原地區(qū)土地潛力分區(qū)圖》。出于上述同樣原因，潛力區(qū)也保持縣(市、旗)界的完整。土地利用分區(qū)土地的農(nóng)業(yè)開發(fā)和利用具有明顯的地域性和綜合性。為了比較全面、系統(tǒng)地揭示和闡明土地資源特點(diǎn)及合理利用方向與途徑，特劃分土地利用區(qū)。土地利用分區(qū)的原則是：自然條件、土地資源特點(diǎn)及農(nóng)業(yè)生產(chǎn)類型的相似性；土地限制因素及其開發(fā)利用方向、綜合治理途徑的相似性；出于上述同樣原因，土地利用分區(qū)保持縣(市、旗)的完整。第一部分：中國(guó)黃土高原地區(qū)耕地坡度分級(jí)數(shù)據(jù)各省(區(qū))耕地坡度分級(jí)數(shù)據(jù)(萬(wàn)畝)省區(qū)土地總面積耕地總面積梯、條田耕地坡度分級(jí)地面坡度分級(jí)V3°3-7°7-15°15-25°>25°<3°3-7°7-15°15-25°>25°甘肅省16449.764979.031426.741176.71263.99909.05892.22310.323047.03740.713987.514976.173698.34山西省23469.717849.871408.153161.421124.991030.00907.18218.136127.522372.144815.944621.304532.82內(nèi)蒙古自治區(qū)18489.102054.7032.941660.65283.5676.860.690.0014912.621405.271115.50647.49408.22寧夏回族自治區(qū)7778.541984.9073.51961.40261.38453.74218.7216.153806.21841.571339.731240.03551.00青海省5162.29803.5286.77一一一一一933.57117.891097.491532.791480.55陜西省19456.506637.36965.882458.84326.771140.701156.55588.625927.22624.012333.495361.455210.33河南省2760.671059.69276.48一一一一一895.21233.57470.78633.50527.61各綜合治理開發(fā)區(qū)耕地坡度分級(jí)數(shù)據(jù)(萬(wàn)畝)區(qū)省區(qū)土地總面積耕地總面積梯、條田耕地坡度分級(jí)地面坡度分級(jí)<3°3-7°7-15°15-25°>25°<3°3-7°7-15°15-25°>25°河南省2760.671055.69276.48一一一一一895.21233.57470.78633.50527.61豫西晉東南區(qū)山西省5967.101512.81441.81508.40254.80182.66108.5316.811180.45626.031607.591519.721033.31晉北區(qū)晉北區(qū)6573.372278.09250.851035.78441.36296.99210.0843.032011.12891.141380.38922.351368.38汾渭谷地區(qū)山西省6801.512772.87498.951516.85275.71236.35204.3140.702590.35594.431190.071600.42826.24陜西省6697.683131.14432.971929.30164.17188.43298.40117.873051.64303.10484.761523.211334.97山西省1076.93山西省1076.93372.6144.1528.9324.58119.70123.9331.3266.4666.07279.14589.3975.87山西省1076.93山西省1076.93372.6144.1528.9324.58119.70123.9331.3266.4666.07279.14589.3975.87晉陜蒙接壤區(qū)陜西省內(nèi)蒙古自治區(qū)2646.744013.60408.76545.7738.3813.4199.08268.4115.71192.80149.5770.4689.140.6916.880.001310.882199.3044.38846.37492.22758.22728.68201.8770.587.84晉西陜北區(qū)山西省陜西省3050.817265.20913.49172.5971.46128.54194.30260.3386.27279.15194.47358.76989.421229.012562.44318.22288.67116.45716.93694.27427.901119.99201.401046.592109.572787.65隴東陜北區(qū)甘肅省陜西省5188.372846.881327.74459.60407.5454.49135.07162.33108.711062.78115.38656.831879.331474.05535.02176.31141.7930.4485.7774.7425.97444.7175.13309.92999.991017.13兩西天水區(qū)寧夏回族自治區(qū)甘肅省2521.605504.771035.122317.4265.80681.90253.08341.09117.77376.36206.8515.26382.85228.15793.89804.85311.8698.72525.61533.89136.21704.79201.041916.401711.37971.17鄂爾多斯區(qū)9418.34123.991.45122.540.000.000.000.009083.64292.7127.009.235.76內(nèi)蒙古河套區(qū)5057.161384.9418.081269.7090.766.400.000.003629.68266.19330.28436.39394.62寧夏平原區(qū)5256.94949.787.71708.32143.6177.3811.870.893423.37613.42545.84435.18239.14蘭州區(qū)5756.621333.87285.24428.08110.78248.37196.0065.401279.46424.291414.281385.471253.12青東高原區(qū)5162.29803.5286.77933.57117.891097.491532.791480.55各土地潛力區(qū)耕地坡度分級(jí)數(shù)據(jù)（萬(wàn)畝）區(qū)省區(qū)土地總面積耕地總面積梯、條田耕地坡度分級(jí)地面坡度分級(jí)V3。3-7°7-15。15-25°>25°<3°3-7°7-15°15-25°>25°暖溫帶半濕潤(rùn)土地潛力區(qū)南部亞區(qū)16797.435466.601042.763100.72490.65400.93343.2288.326257.601335.092580.213466.773157.76北部亞區(qū)20275.006571.931498.741962.20577.021003.221158.71372.043862.961093.113907.496159.645251.80暖溫帶半濕潤(rùn)土地潛力區(qū)（南部亞區(qū)）山西9039.163006.11782.391349.38392.63285.21175.8320.672667.86926.361878.022083.491483.43陜西4997.602460.49260.371751.3498.02115.72167.3967.652694.53175.16231.41749.781146.72河南2760.671059.69276.48一一一一一895.21233.57470.78633.50527.61暖溫帶半濕潤(rùn)土地潛力區(qū)（北部亞區(qū)）甘肅5554.232244.94774.32494.1870.38326.39423.87155.801048.30118.901263.421912.541211.07山西8306.462498.08303.641064.66374.16358.2325.4671.961888.37712.171724.711994.571986.64陜西5770.821558.03388.46361.68107.62218.42343.38138.47877.51224.13670.972039.111959.10寧夏643.49270.8832.3241.6824.86100.2166.005.8148.7837.91248.39213.4294.99溫帶半干旱土地潛力區(qū)甘肅9212.942418.62602.30535.79157.05562.60419.30141.581541.96418.362305.692798.082148.85山西6124.092345.68322.12747.38358.2386.59405.89125.51571.29733.611213.211543.241062.74內(nèi)蒙7889.011290.1828.56900.51283.5676.860.690.005197.691005.6979.43452.97253.32溫帶半干旱土地潛力區(qū)寧夏1878.11764.2433.48211.4092.91276.15140.859.45334.07190.21545.50591.43216.87陜西8688.082618.84317.05345.82121.13806.56645.78382.502355.18224.721431.112572.562104.51青東咼原區(qū)一808.5286.77一一一一一933.57117.891097.491532.791480.55甘肅1682.59315.4750.12146.7436.5620.0649.0512.94456.77203.45418.40265.55338.42內(nèi)蒙10600.09764.524.38460.140.000.000.000.009714.93399.67136.07194.52154.90寧夏5256.94寧夏5256.94949.787.71708.32143.6177.3811.870.893423.36613.42545.84435.18239.14寧夏5256.94寧夏5256.94949.787.71708.32143.6177.3811.870.893423.36613.42545.84435.18239.14各土地利用區(qū)耕地坡度分級(jí)數(shù)據(jù)（萬(wàn)畝）區(qū)省區(qū)土地總面積耕地總面積梯、條田耕地坡度分級(jí)地面坡度分級(jí)V3°3-7°7-15°15-25。>25。<3°3-7°7-15°15-25°>25°東部山地林農(nóng)牧區(qū)五臺(tái)一恒山亞區(qū)1674.47405.1662.29132.3888.1557.9854.849.52293.71154.27238.80236.30751.39太行山地亞區(qū)6534.221660.74471.16549.99269.92217.01131.9920.671266.47656.551718.861682.551209.79豫西山地亞區(qū)2760.671055.69276.48一一一一一895.21233.57470.78633.50527.61谷地盆地農(nóng)區(qū)大同盆地亞區(qū)2823.761167.51122.92628.85230.59123.1855.116.861233.23527.43593.96233.92235.22忻州-太原亞區(qū)3615.901233.17133.48782.05128.9897.3375.9715.361304.87255.41652.26855.88547.48汾渭谷地亞區(qū)7383.073741.86540.142526.12226.69181.68200.4566.783957.01487.98484.361092.441361.28令八"田Za>KZ山西2825.921456.10331.84851.77136.1676.2555.184.901486.97325.81275.24458.08279.82汾渭谷地業(yè)區(qū)陜西4557.152285.76208.301674.3590.53105.43145.2761.882470.04162.17209.12634.361081.46黃土丘陵農(nóng)牧區(qū)呂梁山地亞區(qū)3274.54964.94135.63137.66169.45217.34242.1862.68271.02259.44850.371150.15743.56晉西-陜北亞區(qū)8062.562869.67442.74188.55140.17796.44802.42499.35460.04256.011338.132891.563116.82山西2720.90962.25150.8378.72101.74240.91291.9198.14271.25193.23486.451004.42765.55陜西5341.661907.42291.91109.8338.43555.53510.51401.21188.7962.78851.681887.142351.27長(zhǎng)城沿線黃土丘陵、沙地亞區(qū)內(nèi)蒙4013.60545.7713.41268.41192.8070.460.690.002199.30846.37758.22201.877.84寧夏2062.44423.093.10213.63123.6769.9311.870.891142.61381.42318.30162.4157.70陜西4570.281063.7864.69277.9293.73310.97272.9043.572242.08183.00687.13951.11506.96隴東-渭北黃土臺(tái)塬亞區(qū)甘肅3630.471064.05402.13320.3333.3299.63118.8789.77825.4762.67411.261302.861028.21陜西4496.351215.83364.95372.4597.08139.71181.6160.03954.86199.59502.991677.011161.90八盤山南部山地黃土丘陵亞區(qū)甘肅2379.78774.01215.52143.9530.76145.67182.0756.04294.4362.65719.82739.90562.98寧夏263.46116.1628.0334.216.3918.9724.454.1139.1815.37105.3880.5822.95陜西491.06164.5736.0324.297.0029.0646.2621.9371.4516.4782.57211.83108.74甘肅7054.182540.24712.80481.01112.33554.26534.35145.491100.42249.241910.072357.091437.36隴中-寧南黃土丘陵亞區(qū)寧夏2258.14918.9637.77218.87111.38357.39182.4011.15343.67212.78688.51724.27288.91隴中北部黃土丘陵亞區(qū)4432.61600.7396.29231.4287.58109.4956.9319.02826.71366.15946.36576.32669.79鄂爾多斯沙地牧區(qū)9418.34123.991.45122.540.000.000.000.009083.64292.7127.009.235.76河套平原農(nóng)區(qū)內(nèi)蒙平原亞區(qū)5057.161384.9418.081269.7090.766.400.000.003629.68266.19330.28436.39394.62寧夏平原亞區(qū)3194.50526.694.61494.6919.947.450.000.002280.75232.00227.54272.77181.44青東咼原山地、黃土丘陵農(nóng)牧地5162.29一一一一一一一933.57117.891097.491532.791480.55白銀市498.4045.236.94白銀市498.4045.236.9424.517.146.640.000.00105.2536.99198.2376.5581.38景泰縣834.1474.3724.7143.910.000.003.632.12283.36116.05224.5092.45117.78臨夏縣*333.50120.1938.4947.937.7813.662.899.44105.2821.9771.9469.7164.60甘肅省各縣（市）耕地坡度分級(jí)數(shù)據(jù)（萬(wàn)畝）縣（市、旗）土地總面積耕地總面積梯、條田耕地坡度分級(jí)地面坡度分級(jí)<3°3-7°7-15°15-25°>25°<3°3-7°7-15°15-25°>25°平?jīng)鍪?85.83116.4345.1531.524.156.1420.049.4373.818.0748.38127.7227.85涇川縣222.70102.5451.5728.445.424.812.419.8973.209.8632.9971.4735.18靈臺(tái)縣295.02113.7546.3326.473.2611.7910.9514.9559.285.0285.45110.7934.48崇信縣129.2353.4616.3313.291.3012.316.323.9116.452.3735.5857.3417.49^華縣178.2656.7519.217.291.309.0414.765.1522.443.0444.0780.4728.24慶陽(yáng)縣*547.80174.7248.0473.413.3412.4832.265.19189.597.4331.20158.00161.58環(huán)縣1379.64206.9438.2679.9219.8726.4028.7013.79214.8749.67201.50496.00417.60華池縣578.8163.6712.2920.644.288.456.2911.7249.646.1271.10258.29193.66臺(tái)水縣452.3358.8024.5518.471.403.746.214.4361.615.8219.91155.96209.03正寧縣197.9059.3729.2615.430.874.394.275.1543.211.2022.1276.1055.27寧縣397.52119.2663.9536.433.817.582.644.85118.677.6217.97102.55150.71鎮(zhèn)原縣523.33202.0564.6656.235.4927.9427.4820.25140.019.1646.56184.64142.96會(huì)寧縣847.38313.4186.8041.0536.2858.0060.2331.05150.4855.82245.67238.20157.21天水市*857.05247.5956.3552.3515.6128.9472.4721.87110.2825.48233.07185.92302.30天水縣一一一一一一一一一一一一一武山縣302.81101.8617.6223.142.1825.4322.8610.6340.384.1167.32128.7862.22甘谷縣231.27122.9832.4016.384.6332.2929.877.4123.777.73107.4573.8518.47秦安縣242.51144.0556.718.352.6315.0652.478.8315.014.79121.6079.0222.09張家川縣194.0071.7525.7414.283.1713.2313.981.3528.566.6178.7462.7017.39清水縣296.34113.9027.6310.743.8633.3733.744.5623.067.78126.93101.2437.33定西縣549.16258.3083.6820.284.9462.6374.1512.6252.7532.91227.49151.7184.30通渭縣430.47254.0969.5629.958.9790.4441.2213.9539.0813.79239.07105.0933.44隴西縣363.01184.3643.5028.616.8261.1938.905.3455.3316.23125.38142.8123.26渭源縣309.89119.4533.0934.001.6727.1822.860.6559.522.7856.86142.8547.88漳縣324.6471.517.7216.332.9522.6513.498.3736.5311.8489.0699.0988.12莊浪縣226.68110.6561.2519.821.6913.0110.774.1133.183.7980.6381.7027.38靜寧縣329.56203.5279.8525.813.3242.1946.885.4736.867.38117.13118.4149.78蘭州市240.3253.5717.6120.492.711.727.153.8977.906.7532.0968.1955.39永登縣821.50176.5123.7227.5533.2778.327.685.97192.7983.17206.38195.36143.80皋蘭縣382.8463.5215.5132.6210.614.470.200.1171.9042.54123.3538.86106.19榆中縣486.91146.4240.3133.062.7825.0431.0614.1761.486.1862.61127.96228.68

靖遠(yuǎn)縣848.45241.1025.41102.8336.5620.0645.4210.82173.4187.40193.90173.10220.64臨洮縣430.41165.4139.6340.213.4146.5233.272.3773.688.13122.31185.7940.50康樂縣147.3955.299.2918.900.759.6311.914.8147.241.9838.5038.9120.76永靖縣282.4163.6814.636.692.9614.0520.315.0430.996.5835.60132.5176.73廣河縣79.8033.106.128.831.4812.383.860.4315.313.5723.4724.0913.36和政縣144.0636.606.8710.810.789.317.811.0221.491.7557.1045.1618.56東鄉(xiāng)縣積石山縣226.4958.8816.009.740.556.5720.815.2119.381.2324.30116.8264.75靖遠(yuǎn)縣848.45241.1025.41102.8336.5620.0645.4210.82173.4187.40193.90173.10220.64臨洮縣430.41165.4139.6340.213.4146.5233.272.3773.688.13122.31185.7940.50康樂縣147.3955.299.2918.900.759.6311.914.8147.241.9838.5038.9120.76永靖縣282.4163.6814.636.692.9614.0520.315.0430.996.5835.60132.5176.73廣河縣79.8033.106.128.831.4812.383.860.4315.313.5723.4724.0913.36和政縣144.0636.606.8710.810.789.317.811.0221.491.7557.1045.1618.56東鄉(xiāng)縣積石山縣226.4958.8816.009.740.556.5720.815.2119.381.2324.30116.8264.75第二部分：中國(guó)黃土高原地區(qū)水土流失及治理面積統(tǒng)計(jì)數(shù)據(jù)（1986）各?。▍^(qū)）水土流失及治理面積數(shù)據(jù)（1986）單位：萬(wàn)畝省流失面積治理面積已治理（％）其中有效灌溉面積梯田面積條田面積壩地面積其他造地人工造林人工種草封山育林其他治理甘肅省14140.203968.2528.06909.85516.8925.720.001481.23759.21181.6393.72444.73山西省14475.455778.0039.92790.75617.40228.27148.032850.73310.64804.3027.881691.64內(nèi)蒙古自治區(qū)8929.051679.4018.8132.940.0020.870.001304.14321.230.000.22542.65寧夏回族自治區(qū)5876.40764.4013.0173.510.0055.310.00350.85185.510.00144.22361.34青海省3557.55652.2018.3386.770.002.248.03260.3090.42113.0191.43181.12陜西省14959.355645.2537.74618.69347.1968.3862.612872.48806.76272.86626.281581.09河南省1859.85955.6551.38258.8317.6530.906.19417.7822.4757.50144.33279.47各綜合治理開發(fā)區(qū)水土流失及治理面積數(shù)據(jù)（1986）

單位：萬(wàn)畝區(qū)省區(qū)流失面積治理面積已治理(%)其中有效灌溉面積梯田面積條田面積壩地面積其他造地人工造林人工種草封山育林其他治理河南省1859.85955.6551.38258.8317.6530.906.19417.7822.4757.50144.33279.4701豫西晉東南區(qū)山西省39933.901636.0541.59291.53150.08121.1657.74607.2748.75358.840.68146.5302晉北區(qū)山西省4007.851595.7039.81115.63135.2230.9336.24968.32114.96167.2027.20477.0603汾渭谷地區(qū)山西省3631.051276.5035.16210.70288.2548.8238.84452.7544.54192.600.001032.06陜西省4343.401747.2040.23237.56195.415.8716.09570.2672.78174.13475.101429.5704晉陜蒙接壤區(qū)山西省755.25376.2049.8137.756.4043.092.70292.4529.273.540.0012.08陜西省2265.00944.7041.7138.380.008.141.00594.80202.6741.7657.9557.92內(nèi)蒙古3625.201186.8032.7413.410.009.690.00967.11196.440.000.1590.3905晉西陜北區(qū)山西省2147.40893.5541.61135.1437.4523.2712.51529.9473.1282.120.0023.91陜西省6397.502346.3036.68298.7019.5251.3113.981386.64470.5440.3165.3065.6706隴東陜北區(qū)甘肅省4293.751435.5033.43185.16274.444.320.00619.08262.1758.9031.4368.29陜西省1953.45607.0531.0844.05132.263.061.54320.7860.7716.6627.9327.9307兩西天水區(qū)寧夏2145.90601.9528.0565.800.0032.020.00248.64157.810.0097.6860.03甘肅省4614.751766.4038.28582.0599.853.120.00589.49389.0773.7529.07139.5408鄂爾多斯沙區(qū)內(nèi)蒙古3898.50285.907.331.450.002.770.00169.61112.070.000.0028.3709內(nèi)蒙古河套區(qū)內(nèi)蒙古1405.35206.7014.7118.080.008.410.00167.4212.720.000.07423.8910寧夏平原區(qū)寧夏3730.50162.454.357.710.0023.290.0057.2127.700.0046.54301.3111蘭州區(qū)甘肅省5231.70766.3514.65142.64142.6018.280.00272.66107.9748.9833.22236.9012青東咼原區(qū)青海省3557.55625.2018.3386.770.002.248.03260.3090.42113.0191.43181.12各綜合治理開發(fā)區(qū)水土流失及治理面積數(shù)據(jù)(1986)單位：萬(wàn)畝區(qū)省區(qū)流失面積治理面積已治理(%)其中有效灌溉面積梯田面積條田面積壩地面積其他造地人工造林人工種草封山育林其他治理河南省1859.85955.6551.38258.8317.6530.906.19417.7822.4757.50144.33279.4701豫西晉東南區(qū)山西省39933.901636.0541.59291.53150.08121.1657.74607.2748.75358.840.68146.5302晉北區(qū)山西省4007.851595.7039.81115.63135.2230.9336.24968.32114.96167.2027.20477.0603汾渭谷地區(qū)山西省3631.051276.5035.16210.70288.2548.8238.84452.7544.54192.600.001032.06陜西省4343.401747.2040.23237.56195.415.8716.09570.2672.78174.13475.101429.5704晉陜蒙接壤區(qū)山西省755.25376.2049.8137.756.4043.092.70292.4529.273.540.0012.08陜西省2265.00944.7041.7138.380.008.141.00594.80202.6741.7657.9557.92內(nèi)蒙古3625.201186.8032.7413.410.009.690.00967.11196.440.000.1590.3905晉西陜北區(qū)山西省2147.40893.5541.61135.1437.4523.2712.51529.9473.1282.120.0023.91陜西省6397.502346.3036.68陜西省6397.502346.3036.68298.7019.5251.3113.981386.64470.5440.3165.3065.67陜西省1953.45607.0531.0844.05132.263.061.54320.7860.7716.6627.9327.934614.751766.4038.28582.0599.853.120.00589.49389.0773.7529.07139.54陜西省6397.502346.3036.68陜西省6397.502346.3036.68298.7019.5251.3113.981386.64470.5440.3165.3065.67陜西省1953.45607.0531.0844.05132.263.061.54320.7860.7716.6627.9327.934614.751766.4038.28582.0599.853.120.00589.49389.0773.7529.07139.5406隴東陜北區(qū)甘肅省4293.751435.5033.43185.16274.444.320.00619.08262.1758.9031.4368.2907兩西天水區(qū)寧夏甘肅省2145.90601.9528.0565.800.0032.020.00248.64157.810.0097.6860.0308鄂爾多斯沙區(qū)09內(nèi)蒙古河套區(qū)10寧夏平原區(qū)11蘭州區(qū)12青東高原區(qū)內(nèi)蒙古內(nèi)蒙古寧夏甘肅省青海省3898.501405.353730.505231.703557.55285.90206.70162.45766.35625.207.331.450.002.770.00169.61112.070.000.0028.3714.7118.080.008.410.00167.4212.720.000.07423.894.357.710.0023.290.0057.2127.700.0046.54301.3114.6518.33142.64142.6018.280.00272.66107.9748.9833.22236.9086.770.0006隴東陜北區(qū)甘肅省4293.751435.5033.43185.16274.444.320.00619.08262.1758.9031.4368.2907兩西天水區(qū)寧夏甘肅省2145.90601.9528.0565.800.0032.020.00248.64157.810.0097.6860.0308鄂爾多斯沙區(qū)09