| 新围砂涂土壤盐分和养分的定位观测及研究 |
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| 引用本文： | 丁能飞,厉仁安,董炳荣,傅庆林,王建红. 新围砂涂土壤盐分和养分的定位观测及研究[J]. 土壤通报, 2001, 32(2): 57-59 |
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| 作者姓名： | 丁能飞 厉仁安 董炳荣 傅庆林 王建红 |
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| 作者单位： | 1. 浙江省农科院土肥所,浙江,杭州,310021
2. 浙江大学华家池校区环资学院,浙江,杭州,310029 |
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| 基金项目： | 浙江省“九五”重大攻关项目资助! ( 96 110 2 2 2 2 ) |
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| 摘 要： | 通过 1 992～ 1 998年近七年的新围砂涂土壤盐分和养分的定位观测及研究表明 :随着垦种年数的增加 ,砂涂土壤盐分含量有下降趋势 ,但受到气候、利用方式、地形高低等因素的影响 ,脱盐速度不尽相同 ,脱盐率高的达 80 .2 % ,低的仅 2 7.7% .土壤碱解氮含量有所增加 ,从 1 992年的 34 .7mg/kg增至1 998年的 4 4.7mg/kg ,但仍处于很低的水平 ;有效磷含量有了较大幅度的提高 ,从 1 992年的 4 .3mg/kg增至 1 998年的 8.7mg/kg ;速效钾含量有不同程度下降 ,下降幅度为 9.8～ 51 .5% .
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| 关 键 词： | 海涂 盐分 养分 定位观测 |
| 文章编号： | 0564-3945(2001)02-0057-03 |
| 修稿时间： | 1999-10-09 |
Long-term observation and study on salinity and nutrients of coastal saline soils (sandy soil) |
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| DING Neng-fei ,LI Ren-an ,DONG Bing-rong ,et al.. Long-term observation and study on salinity and nutrients of coastal saline soils (sandy soil)[J]. Chinese Journal of Soil Science, 2001, 32(2): 57-59 |
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| Authors: | DING Neng-fei LI Ren-an DONG Bing-rong et al. |
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| Affiliation: | DING Neng-fei 1,LI Ren-an 2,DONG Bing-rong 1,et al. |
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| Abstract: | A long-term observation on salinity and nutrient status was conducted on a coastal area in 1992 to 1998. The results showed that soil salinity decreased with the development and utilization of the soil in the area. The desalination degree was varied due to the differences in weather, utilization ways and topography. The highest and the lowest degrees of desalination were 80.2 and 27.7%. The soil available nitrogen content increased from 4.3 mg/kg in 1992 to 8.7 mg/kg in 1998, whereas the soil available P content decreased by 9.8 to 51.5%. |
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| Keywords: | Coastal saline soil Salinity Nutrient Long-term observation |
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